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revision 1.1469 by ifenty, Wed Jun 29 21:44:26 2011 UTC revision 1.2109 by jmc, Wed Dec 24 19:16:33 2014 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o model/src & mom pkgs:
8      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
9        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
10      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
11        just copy level Nr value to level Nr+1.
12    o doc:
13      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
14    o pkg/streamice:
15      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
16        SHELFICE.h: move array shelficemass to init_varia, initialise
17        from array shelficemassinit, which is set in init_fixed and
18        has option to be set from file; introduce array
19        shelficeMassDynTend array, set thru file in init_fixed
20      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
21        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
22        pkg/streamice
23      - shelfice_thermodynamics.F: call shelfice_step_icemass if
24        SHELFICEMassStepping = .true.
25      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
26    
27    checkpoint65h (2014/12/17)
28    o verification/global_ocean.90x40x15, global_ocean_ebm:
29      - update to generic controls.
30    o pkg/ctrl:
31      - ctrl_map_ini_genarr.F: test for igen>0
32      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
33      - move gentim2d part of ctrl_map_ini_genarr.F to
34        new separate routine : ctrl_map_ini_gentim2d.F
35      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
36        add time variable weights and cyclic controls (time mean,
37        seasonal cycle, etc) capabilities to gentim2d
38    o pkg/ecco:
39      - move reading of error, conversion to weights from
40        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
41    o global_oce_llc90, cs32:
42      - activte sbo.
43      - CTRL_SIZE.h : add maxCtrlProc.
44      - activate the new genctrl capabilities.
45      - update following reorganization of global_oce_input_fields.tar.gz  
46    o pkg/ctrl/ctrl_ad_diff.list:
47      - add missing ctrl_init_rec.f
48    o tools/OAD_support/keepOriginal:
49      - add ctrl_init_rec.F
50    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
51      - avoid recomputations of xx_gentim2d_dummy.
52    o momentum diagnostics:
53      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
54        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
55    o pkg/seaice/seaice_lsr.F:
56      - fix computation of BU/BV, make sure they are non-zero, only necessary
57        for cubed sphere exchanges and SEAICE_OLx/y>0.
58        This makes calling s/r fill_cs_corner_rl obsolete (removed).
59    o verification/global_ocean.cs32x15/input.seaice
60      - add test for strong implicit coupling and restricted addtive Schwarz
61        methods for LSR
62      - update results/output.seaice.txt
63    o verification/tutorial_global_oce_biogeo:
64      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
65        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
66        update output_adm,_oadm,_tlm.txt
67    o pkg/dic:
68      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
69      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
70        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
71    o verification/tutorial_global_oce_biogeo:
72      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
73        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
74        update output_adm,_oadm,_tlm.txt
75    o eesupp/src:
76      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
77        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
78    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
79      LSR (following Hutchings et al. 2004)
80      - introduce zetaZ as a global variable (requires adjustments in
81        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
82        in seaice_calc_viscosities.F
83      - new flag SEAICEuseStrImpCpl (default off)
84      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
85        momentum equations
86      - JFNK-solver (preconditioner) adjusted to allow using this method
87        (where it does not have any positive effect)
88    o pkg/seaice
89      - add overlap for restrictive additive Schwartz method also to LSR, but
90        turn it off by default (because it only seems to work for non-cubed
91        sphere/llc topologies)
92    o pkg/autodiff
93      - add extra exchanges in addummy_in_steppging also for mnc output
94    o pkg/seaice:
95      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
96        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
97    o pkg/obcs:
98      - add option to specify domain-connected piece Id along OB though files
99        (for now, only used to diagnose PhiVel; default =1 -> global correction)
100      - modify obcs_diag_balance.F to process each connected-part separately;
101        exclude OB where Id = 0 but keep the full divergence there (-> constant
102        Psi along this portion of OB and all inflow derived from grad(Phi))
103      - add example of OB-conect files in verification/so_box_biogeo/input.
104    o pkg/diagnostics:
105      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
106      a) use non zero matrix element across OB and solve for Phi 1 grid point
107         outside OB (i.e, where tracer OBCS are applied).
108      b) global imbalance of inFlow/outFlow across OB: instead of modifying
109         velocity across OB, spread it uniformly along the OB in the RHS.
110    
111    checkpoint65g (2014/11/19)
112    o pkg/diagnostcis:
113      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
114    o pkg/my82,pp81,kl10:
115      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
116        field diffKr as background diffusivity to set minimum diffusivity value.
117    o pkg/seaice:
118      - add new parameter SEAICEuseEVPrev (for revisited EVP by
119        Bouillon et al 2013)
120      - add SEAICE_evpAlpha/Beta to namelist
121      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
122        involve trivial re-ordering of divisions/multiplications that should not
123        have any effects, but ... they do change the results of lab_sea.hb87 so
124        that only 2 digits of agreement remain, in line with the general
125        instability/fragility of the evp-code. For now, I do not care and just
126        update the verification experiment
127    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
128      - remove xx_genarr2d_numsmooth etc
129      - use xx_genarr2d_preproc etc instead
130      - carry out smooth_correl2D at initialization stage rather than during
131        time stepping.
132      - get smoothOpNb from xx_gentim2d_preproc
133    o global_oce_cs32 :
134      - add test of generic ecco capabilities.
135    o pkg/exf/exf_getsurfacefluxes.F :
136      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
137    o pkg/ctrl,ecco :
138      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
139        is defined.
140    o pkg/seaice: add diagnostics for Delta (deformation parameter)
141    o model/src:
142      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
143        diffusivity (background) is specified but ignored.
144    o verification:
145      - in testreport, convert hostname to lower case for default output dir name
146    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
147    o pkg/dic: add modifications from Hajoon:
148      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
149      - light attenuation: add self-shading effect by climatological Chlorophyll
150        (read from file).
151    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
152        compiles when SEAICE_ALLOW_DYNAMICS is undefined
153    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
154        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
155        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
156        approach where CPP_OPTIONS.h includes an omnipotent
157        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
158    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
159        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
160    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
161        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
162        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
163    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
164      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
165      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
166      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
167      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
168    o pkg/ctrl,ecco,exf :
169      - remove variables associated with NON-generic costs,
170        unless ECCO_CTRL_DEPRECATED is defined.
171      - remove NON-generic NON-obcs controls,
172        unless ECCO_CTRL_DEPRECATED is defined.
173    o pkg/ctrl : added ctrl_local_params.h
174    o pkg/ecco : added ecco_local_params.h
175    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
176        experiments, which will progressively be removed once the
177        experiments are revised to use only generic controls/costs.
178    
179    checkpoint65f (2014/10/13)
180    o pkg/ctrl, ecco, seaice : minor changes in headers
181    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
182        cost function and control capabilities added since checkpoint65c.
183    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
184    o pkg/ecco: increase modularity and improve logic
185      - ecco_toolbox.F (new) : basic operations that are often used,
186        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
187        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
188      - cost_gencal.F (new) : determine filnames and records.
189      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
190      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
191        and exploit the above functions leading to more compact code.
192      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
193      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
194        using_ers, using_gfo, using_mdt is now only defined within gencost)
195    o pkg/ecco: extend generic cost capabilities
196      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
197        capabilities via gencost_preproc (+ _c,_i,_r related params),
198        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
199        gencost_outputlevel arguments to cost_generic
200      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
201        and active_read, making room for gencost_preproc to take effect.
202        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
203      - pkg/ecco/cost_generic.F :
204        compute and store misfit maks*(model-data) in localdif that is
205        then used in cost and for output, output misfit if outlev.GT.0
206      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
207        rather gencost_barfile for deciding whether to write barfile
208      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
209      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
210        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
211      - pkg/ecco/ecco_summary.F : report gencost variables
212      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
213    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
214    o pkg/ecco: internal re-organization
215      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
216        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
217        mv relevant variables definition from ecco_cost.h to ecco.h,
218        make sure gencost routines only include ecco.h)
219      - throughout : add missing CCP switches, rm unused variables,
220        and rm un-necessary CPP switches
221      - throughout gencost routines : replace modelstartdate with
222        gencost_startdate when needed
223      - cost_bp_read.F : use arguments, instead of common blocs
224        so that it can be used also by (new) cost_gencost_bpv4.F
225      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
226      - ecco_phys.F : compute etanFull
227      - ecco_readparms.F : rename using_topex as using_tpj, add
228        bpv4-grace to gencost list, initialize added parameters
229      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
230    
231    checkpoint65e (2014/09/28)
232    o pkg/obcs:
233      - replaced the just-added CPP options with run-time variables
234        (see pkg/obcs/OBCS_PARAMS.h for details)
235    o pkg/obcs:
236      - add additional CPP options for sponge boundary layers
237        (see pkg/obcs/OBCS_OPTIONS.h for details)
238    o pkg/atm_phys:
239      - implement simple (obliquity only, assuming circular planet orbit)
240        seasonal cycle for incoming insolation ; used when run-time parameter
241        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
242    o pkg/exf, pkg/ecco, pkg/ctrl:
243      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
244      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
245      - implement gentim2d for xx_tauu, xx_tauv
246    o pkg/ctrl, pkg/ecco :
247      - fix and complement the generic controls implementation
248    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
249        pkg/shelfice/shelfice_thermodynamics.F,
250        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
251        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
252      - add weight in CTRL_GET_GEN calls
253    o pkg/ctrl :
254      - ctrl_get_gen.F : add weight as input parameter, and apply
255        it directly rather than using smooth_correl2Dw (to be retired).
256      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
257    o pkg/ctrl :
258      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
259        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
260      - re-activate ctrl_summary (call in ctrl_init.F)
261    o pkg/ctrl/ctrl_cost_gen.F :
262      - fix CCP brackets, remove un-necessary myiter, mytime
263    o pkg/ecco, pkg/ctrl :
264      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
265      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
266      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
267      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
268    
269    checkpoint65d (2014/09/15)
270    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
271      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
272        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
273    o pkg/ctrl/ctrl_map_ini_genarr.F :
274      - remove compilation failure
275      - replace hard coded example
276      - use ctrl_map_ini_gen2D, 3D
277    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
278      - on/off switch based upon xx_genarr2d_weight,3d
279    o src/packages_init_variables.F :
280      - regroup pkg/estimation calls
281      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
282        (moved to ctrl_init_variables)
283    o cost/cost_init_varia.F :
284      - remove ecco_cost_init_varia
285        (moved to ecco_init_varia)
286    o ctrl/ctrl_init_variables.F :
287      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
288      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
289    o ctrl/ctrl_map_ini.F :
290      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
291        (moved to ctrl_init_variables)
292    o ctrl/ctrl_map_ini_ecco.F :
293      - remove ECCO_PHYS (mv to ecco_init_varia)
294      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
295    o ecco/ecco_ad_diff.list :
296      - add ecco_init_varia.f
297    o ecco/ecco_init_varia.F
298      - new routine
299    o pkg/streamice:
300      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
301        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
302      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
303    o pkg/generic_advdiff:
304      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
305    o pkg/exf:
306      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
307         xxg_precip capability
308      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
309    o pkg/ctrl:
310      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
311    o model/src/load_fields_driver.F :
312      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
313        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
314    o OpenAD verification experiments:
315      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
316        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
317        for now, only in pkgs used in OpenAD verification experiments.
318      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
319        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
320        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
321        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
322    o OpenAD verification tests:
323      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
324      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
325        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
326      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
327        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
328    o model/src & generic_advdiff:
329      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
330        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
331        dynamics requires valid tracer forcing only over tile interior but, for
332        some diagnostics, may need to extend it over 1 point in tile halo region.
333      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
334        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
335        setting in temp/salt/ptracer_integrate.F
336    o pkg/dic:
337      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
338        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
339        in gchem_forcing_sep.F
340    o pkg/autodiff & obcs:
341      - add storage of current OB values for U & V (was already done for T & S).
342    
343    checkpoint65c (2014/08/30)
344    o pkg/dic:
345      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
346        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
347        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
348    o verification:
349      - new experiment testing OBCS and DIC pkgs, using params & output from
350        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
351        passage: take OBCS from the last year of a 2 yrs simulation and initial
352        conditions from t=1.yr while keeping the same forcing.
353    o model/src:
354      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
355        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
356    o pkg/diagnostics (Stats-Diags):
357      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
358        a) refine region where stats are computed, excluding where arrhFac=0 ;
359        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
360        c) extend regional stats over the region edges (for U or V pt location).
361    o pkg/gchem:
362      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
363        pkg/dic is currently changing/updating ptracers values beyond the OB).
364    o verification (hs94):
365      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
366        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
367        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
368        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
369    o pkg/ptracers:
370      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
371        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
372      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
373        with AB-2 code (so that it get tested).
374    o model/src:
375      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
376        with AB-2 code (previously only available with AB-3 code).
377        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
378        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
379        there, by calling CYCLE_AB_TRACER).
380    o pkg/generic_advdiff:
381      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
382        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
383        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
384        S/R temp/salt/ptracers_integrate.F
385    o model/src & pkg/ptracers:
386      - remove common block variables gT,gS (in DYNVARS.h), except when
387         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
388      - remove common block variable gPtr.
389    o model/src & pkgs:
390      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
391         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
392         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
393         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
394      + change accordingly all calling S/R.
395      - use local temperature/salinity/ptracer tendency array (without bi,bj)
396        in S/R temp/salt/ptracers_integrate.F
397    o pkg/seaice:
398      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
399        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
400      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
401        in seaice_lsr
402      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
403        in s/r seaice_lsr_calc_coeffs
404    o pkg/mdsio:
405      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
406        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
407        too long (e.g., > MAX_LEN_FNAM/2 )
408    
409    checkpoint65b (2014/08/12)
410    o pkg/matrix:
411      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
412    o model/src:
413      - fix initialisation of geothermalFile; compile geothermal-flux code in
414        natl_box verification experiment.
415    o model/src & pkg/down_slope:
416      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
417      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
418        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
419        results at machine truncation level: update output of experiments
420        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
421    o pkg/diagnostics (Stats-Diags):
422      - do not cumulate the full volume when DIAGNOSTICS_FILL is
423        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
424        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
425        times (but Min,Max and StD are still wrong).
426    o model/src:
427      - add geothermal flux forcing: read in ini_forcing.F as time-constant
428        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
429    o model/src:
430      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
431        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
432        arrays are already updated while adjustments (filters, conv.adjustment) are
433        still applied later, in S/R TRACERS_CORRECTION_STEP.
434    o model/src:
435      - store in common bloc array "rhoInSitu" the virtual potential temperature
436        anomaly that is used to compute geopotential: this make the atmos code
437        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
438    o pkg/seaice/seaice_lsr.F
439      - rename integer variable ilcall to ipass (that's what it is called
440        in the residual diagnostics
441      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
442        default) for improved non-linear convergence of the first few steps
443      - adjust a few comments and add new ones to explain some of the store
444        directives
445    o pkg/generic_advdiff (& ptracers):
446      - re-work the code to check for valid advection scheme and for minimum
447        size of overlap (now stored in local common bloc in gad_advscheme.F)
448    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
449      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
450      - add an auxilliary variable "bet" and fix store directives and keys in
451        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
452        less exact gradients in my tests); but there are still
453        recomputation warning (although gradients are sort of OK), when
454        SEAICE_LSR_VECTORIZE is not defined, so this flag and
455        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
456      - update verification experiments lab_sea.
457      - change some comments in S/R seaice_calc_viscosities
458    o model/src:
459      - if staggerTimeStep=T, always apply exchange to velocity field in
460        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
461        (independent of using multi-dim advection or not); no effect on FWD run
462        but affects AD results (at machine truncation level): update output of
463        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
464        and isomip (oad: 12.d).
465    o pkg/generic_advdiff:
466      - stop if doAB_onGtGs is set to FALSE but ignored
467      - refine warning related to stability of tracer time-stepping
468        regarding internal wave dynamics.
469      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
470        on staggerTimeStep & implicitIntGravWave (will now get a warning
471        if potentially unstable).
472    o pkg/kl10:
473      - add new pkg "kl10" for mixing due to internal wave breaking, from
474        http://www.sciencedirect.com/science/article/pii/S1463500310000144
475        (contribution from Jody Klymak), tested in verification experiment
476        verification/internal_wave/input.kl10/
477    o isomip experiment:
478      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
479        (input.htd) and update the output.
480    o cd_code experiments:
481      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
482        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
483        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
484        update the corresponding output.
485    o pkg/seaice:
486      - reduce the number of include files and store directives in
487        S/R seaice_lsr_tridiagu/v
488      - change the order of loops in one case in S/R seaice_lsr_tridiagv
489        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
490        get rid off one store directive (a TAF bug?)
491      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
492        S/R seaice_lsr_tridiagv to change the loop range for consistency
493      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
494      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
495        S/R seaice_lsr_tridiagu/v (requires update of
496        offline_exf_seaice/input.dyn_jfnk)
497    
498    checkpoint65a (2014/07/27)
499    o model/src:
500      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
501        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
502        (topo in p-coords, ice-shelf in z-coords); update output of experiments
503        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
504    o model/src:
505      - collect momentum forcing tendency into local 2-D array (passed as argument
506        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
507        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
508        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
509      - collect T & S forcing tendency into local 2-D array (passed as argument to
510        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
511        affects results at machine truncation level (e.g., ocean: if using
512        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
513        correction due to vertical advection).
514      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
515        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
516        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
517        obcs_ctrl (ad & fwd grd @ 12 & 7).
518    o pkg/ptracers & diagnostics:
519      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
520        title (to avoid some unexpected truncation); sort out ptracers diags units.
521      - collect ptracer forcing tendency into local 2-D array (passed as argument
522        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
523    
524    checkpoint65 (2014/07/18)
525    o pkg/fizhi:
526      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
527        affects results at machine truncation level. Update output of experiments
528        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
529    o pkg/seaice: more clean up
530      - rename TAF common block tapes to be more consistent and remove
531        unnecessary duplicates
532      - add store directives to remove more recomputations, but use smaller
533        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
534        The idea behind this flag is to reduce the memory footprint when the
535        adjoint of the LSR is not required. As of now, defining the flag
536        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
537        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
538        For experiment offline_exf_seaice, this means on a linux box with gfortran
539        nearly a factor of 10 (but keep in mind there is mostly seaice code in
540        this experiment):
541        > size mitgcmuv_ad
542        text    data        bss     dec        hex
543        5100659 1216  220458952  225560827  d71c8fb
544        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
545        but only a moderate increase of 36% for global_ocean.cs32x15:
546        text    data        bss     dec        hex
547        6695027 1648 1014578664 1021275339 3cdf6ccb
548        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
549      - note: there are still recomputations in global_ocean.cs32x15 and
550        offline_exf_seaice and the gradient agreement changes (gets a
551        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
552      - in general, the AD gradients still are wrong
553    o OpenAD
554      - clean up code_oad/ directories somewhat by moving files
555        dontCompile, dontTransform, keepOriginal to OAD_support/
556    o model/src:
557      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
558        (not currently tested): add dissipation terms before NLFS rescaling of
559        tendencies (previously done after).
560    o pkg/diagnostics:
561      - write stats-diags in ascii file with more digits (same as in monitor).
562    o pkg/down_slope:
563      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
564        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
565    o model/src:
566      - new file "apply_forcing.F" containing all the code previously in
567        external_forcing.F, but with new argument list: pass, as new argument,
568        the current level tendency array to update (instead of a direct update
569        of the common bloc array). Change the corresponding calls.
570      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
571        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
572    o pkg/seaice/seaice_lsr, a little bit of clean up
573      - rearrange some code blocks, so that now all calculations for
574        setting up the right-hand-sides done within one single block
575        (I find that easier to read and understand)
576      - rearrange freedrift-code to reduce the number of ifdefs
577      - adjust some indentations and comments
578    
579    checkpoint64z (2014/07/10)
580    o model/src and several pkgs:
581      - change argument list of all S/R called from external_forcing.F and
582        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
583        to pass, as argument, the current level tendency array to update
584        (instead of a direct update of the common bloc array).
585      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
586      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
587    o pkg/seaice/seaice_lsr.F
588      - always initialize local arrays in seaice_lsr_tridiagu/v
589      - add more local tapes to seaice_lsr_tridiagu/v
590      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
591        keep it in bi/bj loop; this seems to be essential
592      - gradients are still wrong but only by 4-7 orders of magnitude
593        instead of 15 orders of magnitude, lab_sea improves a little
594    o pkg/seaice
595      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
596        generates unnecessary code in seaice_lsr_ad
597      - add more store directives in seaice_lsr to avoid unnecessary code
598        in seaice_lsr_ad
599      - exclude some residual computations in seaice_lsr when
600        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
601        in seaice_lsr_ad
602      - add more storing, a new tape (model/src/the_main_loop.F) and
603        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
604        and klockey should be checked by a specialist)
605      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
606        and update lab_sea after previous changes in pkg/seaice below
607    o pkg/autodiff:
608      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
609        viscFacInAd : run time parameters allowing for adjoint switches
610        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
611    o pkg/ecco:
612      - introduce cost_gencost_boxmean.F that computes a box mean
613        temperature (for use in adjoint sensitivity studies).
614    o model/src/set_defaults.F : initialize viscFacAdj to 1.
615    o pkg/mom_common/mom_calc_visc.F:
616      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
617    o pkg/seaice/seaice_summary.F:
618      - statement for SEAICEadjMODE now in autodiff_readparms.F
619    o pkg/seaice:
620      - remove some store directives and add new ones in an effort to get
621        finally rid off the recomputation warnings. This is successful
622        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
623        defined (i.e. no extensive recomputation warnings left), but there
624        are still too many recomputations on the solver iteration level
625      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
626      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
627        SEAICE_SIZE.h
628      - add a store directive in S/R seaice_calc_viscosities
629    o pkg/seaice (ITD code):
630      - fix definition of Hlimit for multi-threaded case
631      - use double precision arithmetic to compute Hlimit: this affects results;
632        update output of experiment seaice_itd.
633    o replace content of verification/seaice_itd
634      - instead of a 1D column use the configuration of offline_exf_seaice
635        to test the ice thickness distribution code with ridging
636      - this is a first shot at this experiment
637      - change of some defaults of ridging parameters SEAICEhStar (from
638        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
639        and lot of new comments.
640    
641    checkpoint64y (2014/06/20)
642    o pkg/seaice/seaice_reg_ridge.F:
643      - modify the regularization of very small volumes of ice; only check
644        total volume HEFF, and do not apply correction to individual ice
645        classes because that leads to funny patterns in the heat and fw-fluxes
646        into the ocean. Adjust seaice_itd/results/output.txt
647      - replace nITD by SEAICE_multDim in loop-ranges
648    o pkg/exf:
649      - add code to process the case field period = -12. with UV interpolation.
650      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
651        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
652    o verification/global_with_exf:
653      - switch all fields period to -12. (was previously untested) in input/data.exf
654        (but keep secondary test ".yearly" unchanged); update the reference output.
655    o pkg/cal:
656      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
657    o pkg/exf:
658      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
659        to replace logical switch "exf_verbose"
660      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
661    o pkg/sbo:
662      - update from Katherine Quinn: evaluate mass directly from density and SSH
663        (budget using Finite Volume method) instead of from bottom pressure.
664      - allow testreport to collect few selected SBO output ; tested in exp.
665        global_ocean.90x40x15 (after updating the results, to include SBO output).
666      - fix some multi-threading issues (in output part).
667    o model/src & most packages:
668      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
669      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
670        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
671        "data.{pkg}" exist ; and leave the S/R (return) just after.
672      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
673        + call LAND_READPARMS from packages_readparms.F
674    o pkg/seaice:
675      - remove code that resets useThSice in S/R seaice_readparms and
676        replace it by a warning in S/R seaice_check
677      - remove parameter MULTDIM, replace with nITD and runtime
678        parameter SEAICE_multDim (still hard-wired to nITD if
679        SEAICE_ITD is defined)
680    
681    checkpoint64x (2014/05/24)
682    o verification/lab_sea:
683      - update adjoint and TLM output following changes to pkg/salt_plume
684      - un-do the update after putting back local recip_Cp in few places.
685    o pkg/salt_plume: modifications by An Nguyen:
686      - add capability to do brine rejection (salt-plume) as function of
687        volume+tracers (instead of only salinity tracer).
688      - conserve volume by exchanging volume from each kLev to above to
689        accommodate in-coming brine volume
690      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
691      - switch KPP surf buoyancy due to brine forcing to 3-d
692        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
693      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
694      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
695        in East/West Arctic.
696    o pkg/sbo:
697      - incorporate modifications from Katherine Quinn to enable the use of sbo
698        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
699        output for future testreport verification (unfinished).
700    o pkg/atm_phys:
701      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
702        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
703        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
704    o pkg/seaice
705      seaice_calc_ice_strength.F: modify expression to avoid divisions
706        (affects truncation)
707      seaice_do_ridging.F: clean up the insectarium
708      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
709      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
710      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
711      - add some debugging information and error messages (warnings)
712    o model/src: modifications relatd to atmosphere p*:
713      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
714      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
715        of vertical profile tRef in geopotential background and anomaly.
716      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
717        and pkg/atm_phys.
718      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
719        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
720    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
721    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
722        not used right now, but can be used in BGC packages to fix conservation.
723    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
724        other packages too.
725    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
726        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
727    o model/src:
728      - since we have several heat capacity (even in model/src), define "recip_Cp"
729        as local variable (no longer in common block) to avoid any confusion.
730      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
731    o pkg/exf:
732      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
733        air density as function of air Temp, Humidity and atm pressure.
734    
735    checkpoint64w (2014/05/02)
736    o verification:
737      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
738        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
739        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
740        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
741        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
742    o model/src: for atmosphere in p* coords:
743      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
744      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
745        but not yet activated.
746    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
747      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
748      - this changes the results (but not for any verification experiment, because
749        none tests this), but avoids having an extra field in the restart files
750    o pkg/seaice: remove global variable TICE (not needed)
751      - replace by TICES or local variable where necessary (cost_seaice_test,
752        seaice_diagnostics_state)
753      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
754      - use specific read/write routines for reading and writing individual leves
755        of a multilevel field
756    o pkg/ctrl & model/inc:
757      - move additional anomaly fields of control vars (related to options:
758         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
759        from DYNVARS.h into new header file: CTRL_FIELDS.h
760    o pkg/seaice: some small modifications to the ridging code
761      - make fw2ObyRidge a global variable and add the freshwater flux to
762        seaice_growth
763      - pass actual thickness from seaice_prepare_ridging, so that it is
764        computed only in one place and compute it in the same way as in
765        seaice_growth
766      - initialise more fields in seaice_do_ridging that where cause floating
767        point exceptions over land
768    o pkg/seaice: preparations for ridging code and first real ridging code
769      - move most of "PART 1" of S/R seaice_growth into a new and separate
770        S/R seaice_reg_ridge that will both regularize the state variable after
771        advection call the actual ridging routine;
772      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
773        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
774      - remove ridging code from seaice_advdiff
775      - clean up remaining part 1 of seaice_growth in an attempt to make it
776        more readable (this is probably subjective)
777      - call seaice_itd_redist once in the initialisation phase to have the initial
778        conditions in the correct category
779      - finally: add new ridging routine for ITD code
780    
781    checkpoint64v (2014/04/11)
782    o pkg/ecco:
783      - add runtime parameters mdt[start,end]date[1,2]
784      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
785    o pkg/seaice:
786      - make deltaC a global variable, so that it can be used in ridging code
787      - first step towards ridging: introduce new routines that compute
788        ice strength based on ridging parameters
789      - add diagnostic for HSNOWITD
790      - add opnWtrFrac as a global variable (required for ridging scheme)
791    o pkg/salt_plume + pkg/seaice/seaice_growth.F
792      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
793        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
794    o verification/hs94.1x64x5:
795      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
796      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
797    o autodiff:
798      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
799        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
800        For now, only in pkgs used in verification/hs94.1x64x5.
801      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
802        which are specific to TAF/TAMC).
803      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
804        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
805        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
806      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
807        building mitgcmuv_ad (make adAll).
808    o pkg/ecco:
809      - cost_gencost_seaicev4.F:
810         reformulate proxy cost as function of sst and local param SEAICE_freeze
811         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
812      - add stop statement if old names siv4-[sst,vol] are used
813      - add snapshots + cost reports for atmospheric longwave
814      - remove factor 0.1 in front of wtau[u,v]
815      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
816         ALLOW_TMI_SST_COST_CONTRIBUTION
817    o pkg/atm_phys:
818      - add some diagnostics for Short-wave and for convection S/R.
819    o pkg/seaice/seaice_growth:
820      - fix a bug in the lateral melt parameterization for SEAICE_ITD
821        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
822      - rearrange loop order for better vector code in the same code block
823      - rewrite the floeDiameter formula to have fewer divisions
824      -  (miraculously) none of this changes the results of seaice_itd
825    o pkg/smooth:
826      - move param smooth2Ddiffnbt to pkg/ecco
827    o pkg/salt_plume:
828      - salt_plume_frac.F:
829         clean up local param names
830         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
831    o pkg/rw:
832      - add RS version of S/R READ_MFLDS_LEV.
833    o pkg/streamice:
834      - fix the restart test by writing/reading pickup_streamice files.
835    o pkg/seaice:
836      - refine checks for jfnk-related parameters
837      - comment out if statement with SEAICEuseIMEX parameter as long as there
838        is no IMEX code to avoid confusion and surprises
839    
840    checkpoint64u (2014/03/07)
841    o verification/MLAdjust:
842      - rename secondary test suffix:
843         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
844         0.leithD -> AhFlxF  + switch to flux-form
845         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
846         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
847    o pkg/mom_vecinv:
848      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
849        to be before mom_calc_visc.F)
850      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
851      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
852        this is simpler for the adjoint and for diagnostics.
853    o model/src + pkg/momentum:
854      - add input files for  2-D additional Western and Southern cell-edge wall
855         (e.g., to add "thin-wall" where it is =1).
856      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
857        using 2nd hFacZ that is computed from initial (fix domain) hFac
858      - known limitations of thin wall implementation: not yet coded for sigma
859        coords; not working with CD-scheme neither.
860    o pkg/seaice:
861      - rename recently introduced parameters from (wrong name) AB to
862        BDF (backward difference time discretisation)
863      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
864    o tools/adjoint_options:
865      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
866    
867    checkpoint64t (2014/02/01)
868    o pkg/ecco
869      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
870        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
871      - replace hard-coded record number and period which only work for monthly
872        with read-in runtime param that works for other periods (month,day,year)
873    o pkg/thsice
874      - corrected store directive fixes thsice adjoint gradient checks
875    o genmake2 & testreport:
876      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
877        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
878        Update testreport accordingly. No need to set "export OPENAD=true"
879        in adjoint_options/adjoint_oad anymore (will be removed later).
880    o pkg/shelfice:
881      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
882        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
883        so that surface forcing applies to k=kSurf if using pkg/shelfice.
884    o pkg/ctrl, pkg/grdchk, pkg/ecco:
885      - Changes to make GENARR more modular (i.e. invisible if not used)
886    o model/src/temp_integrate.F and salt_integrate.F
887      - re-include store directives that were removed on Dec 27th.
888    o model/src/external_forcing_surf.F
889      - add storage directives for EmPmR and PmEpR to avoid recomputation of
890        seaice_model in the adjoint that is problematic when seaice_model is
891        turned off in the adjoint. The resolved issue dated back to July when
892        EXTERNAL_FORCING_SURF call was moved.
893        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
894    o pkg/exf/exf_check.F
895      - fix a small bug again (originally found by Wentao Liu, now found again)
896      - streamline error output
897    o pkg/streamice and aim_v23:
898      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
899        Apple's /usr/bin/cpp knows what to do:
900        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
901        Target: x86_64-apple-darwin13.0.0
902    
903    checkpoint64s (2014/01/05)
904    o tools/adjoint_options:
905      - switch to fastopt.net TAF server (instead of default fastopt.de) for
906        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
907    o model/src:
908      - remove some unnecessary TAF storage directives in forward_step.F and
909        in dynamics.F (note: not always removed by TAF, e.g., double storage
910        of kappaRU,kappaRV in former version of dynamics.F).
911    o model/src & pkg/ptracers:
912      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
913        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
914        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
915      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
916      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
917      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
918    o useSingleCpuInput separates single-CPU input from single-CPU output;
919        for now only implemented for in exf_interp_read.F
920    o verification/advect_xy:
921      - fix missing EXCH call in local version of ini_salt.F and update output.
922    o momentum diagnostics:
923      - fix which deltaT is used in Total-Tendency diagnostics.
924      - fix typo in diagnostics for momentum tendency from AB.
925    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
926        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
927    
928    checkpoint64r (2013/12/08)
929    o verification/*/results:
930      - Update reference output of experiments that were passing with just 13 digits
931         (make it easier to detect future changes in results)
932    o model/src & pkg/ptracers:
933      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
934        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
935        to inside ptracers_integrate.F ; remove ptracers_advection.F
936    o coupling interface pkgs:
937        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
938      - change the config check to test the agreement of Ocean Depth
939        with ATM land/sea mask (instead of ATM orography);
940      - send to coupler the number of coupler time-steps to do for this run:
941        this allows to check for consistency and don't need anymore to be
942        specified in parameter file "data";
943      in coupler:
944      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
945      - improve report to log-file of config setting (pass log-file unit to few S/R)
946    o pkg/compon_communic:
947      - add coupling send/receive for non-tiled integer vector;
948      - add S/R to check and stop if any proc has an error (similar to
949        eesupp/src/stop_if_error.F but single thread and across Comm_World).
950    o pkg/exch2:
951      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
952        through list of all tiles my proc owns.
953    o model/src:
954      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
955        from rTrans) to simplify dependencies (no need to store rTrans anymore in
956        calling S/R); this affects AD results at machine truncation level:
957        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
958        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
959    o tools/build_options:
960      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
961    o coupling interface pkgs:
962        [compon_communic, atm_compon_interf & ocn_compon_interf]
963      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
964        to each S/R that needs it; remove un-used variables.
965      - change component tile registration (cpl_register.F in both compon_interf
966        and mitcomponent_tile_register.F) to pass the full list of tiles
967        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
968      - with pkg/exch2: adopt the same convention used for I/O to define mapping
969        towards coupler global array (unless W2_useE2ioLayOut=F):
970         a) can now use different tiling between atm & ocn comp.
971         b) no needs to modify the run-Off map when changing tiling (was needed
972            even if using the same tiling between atm & ocn).
973         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
974            full land tiles); not yet tested.
975      - check for valid mapping from comp. tile to coupler global array
976      - improve report of tile registration results to log file.
977    o pkg/exch2:
978      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
979        tile-registration (CPL_REGISTER);
980      - activate (un-comment) definition and setting of "W2_tileIndex" list to
981        store the local bi,bj indices of each tile;
982      - also print bi,bj in local report to log file;
983      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
984        Jun 2009 modif of pkg/exch2).
985    o testing on baudelaire:
986      - run 2 tests at a time: no significant slow down (since enough cpu) and
987        get the full set of test done earlier
988      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
989    o model/src/thermodynamics.F and routines called from it:
990      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
991        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
992        velocity (outp) by adding bolus velocity.
993      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
994        mass transport from velocity + lateral grid cell area
995      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
996      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
997     in thermodynamics.F
998      - remove k from thermodynamics.F and move it to temp_integrate.F
999        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
1000        loop).
1001      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
1002        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
1003        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
1004        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
1005      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
1006        global_ocean.90x40x15, tutorial_global_oce_biogeo and
1007        tutorial_tracer_adjsens (+ TLM output).
1008    o tools/OAD_support and (verification/*/) code_oad:
1009      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
1010        module conversion ; remove unneeded CPP_EEOPTIONS.h.
1011      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
1012        version (closer to model/inc/CPP_OPTIONS.h).
1013    o model/src:
1014      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
1015        retired list of parameters (routine FREEZE has been replace by surface
1016        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
1017    o pkg/gmredi:
1018      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
1019        velocity (same scheme but affects machine truncation) for GM_AdvForm.
1020      - update output of FWD experiments: front_relax.bvp,
1021        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
1022    
1023    checkpoint64q (2013/11/17)
1024    o verification:
1025      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
1026        tutorial_global_oce_biogeo and global_ocean.90x40x15.
1027      - generate new output (growth & melt) for seaice_itd experiment after
1028        updating the input pickup_seaice files (previously wrong).
1029    o pkg/cost:
1030      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
1031        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
1032        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
1033          cannot be applied to var in common block).
1034        o allows to get results independent of tile-per-proc setting (if using
1035          slower GLOBAL_SUM_SEND_RECV option).
1036      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
1037        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
1038        forward gradients: update output).
1039      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
1040        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
1041    o pkg/mom_common:
1042      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
1043        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
1044        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
1045        ensure that all field value that are used are set.
1046    o tutorial_deep_convection (smag3d):
1047      - add missing scaling in mom_calc_smag_3d.F;
1048      - set smag3D_coeff in input.smag3d such that results do not change.
1049    o pkg/dic:
1050      - change dic_cost.F to compute cost on each tile first and then apply
1051        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
1052        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
1053      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
1054    o eesupp/src & pkg/mdsio:
1055      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
1056        (from pkg/mdsio) since they are no longer used for tape IO.
1057      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
1058        (+ keep a copy in pkg/atm_ocn_coupler).
1059    o verification/isomip:
1060      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
1061    o tools/build_options:
1062      - optfile linux_amd64_ifort11, fast (no ieee) case:
1063        to get a working restart for all experiments, add "-fp-model source"
1064        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
1065    
1066    checkpoint64p (2013/10/20)
1067    o pkg/autodiff:
1068      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
1069        criteria, return to simple (default) tape IO format.
1070    o pkg/mdsio (+ eesupp/src):
1071      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
1072        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
1073      - fix globalFile and singleCpuIO options using simpler global mapping.
1074      - new pairs of scatter/gather vector S/R (one for each type, generated from
1075        template) corresponding to simpler global mapping.
1076      - adread_write.F: switch to new S/R (but leave old calls commented) and write
1077        to globalFile when parameter globalFiles is set to True.
1078      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
1079    o pkg/autodiff:
1080      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
1081        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
1082        missing, just add a STOP if array type do not match.
1083    o pkg/exf:
1084      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
1085         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
1086         and rename array obsSIce to exf_iceFraction.
1087    o tutorial_deep_convection:
1088      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
1089        for now all in this exp. code dir.
1090      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
1091        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
1092    o eesupp/src:
1093      - added SINGLE_DISK_IO option because reading of parameter files on
1094        very large number of processors did not work with existing set-up
1095    
1096    checkpoint64o (2013/09/25)
1097    o pkg/atm_phys & atm_compon_interf:
1098      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
1099    o tools/build_options:
1100      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
1101        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
1102        remove CPP setting (was identical to genmake2 default).
1103    o pkg/gmredi & model/src: Some updating and work done on the residual model.
1104      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
1105      - fixed up the calculation of the eddy stress and how it is added to the
1106        external forcing via taueddy_external_forcing.F
1107      - at the moment, it is very experimental and only works with the variable eddy
1108        diffusivity calculated in gmredi_k3d.F
1109    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
1110        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
1111    o testreport (& tools/do_tst_2+2):
1112      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
1113    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
1114      - remove CPP='cpp -traditional -P' (this is genmake2 default)
1115      - add switch (for big setups) to use 'medium' memory-model (but leave it
1116        commented out for now). Note: needed with FC 19 to compile big setups.
1117    o pkg/atm_compon_interf:
1118      - regroup per field origin (model & pkgs) the coupling storage routines
1119         (which accumalate in time each coupling field)
1120      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
1121        update accordingly + simplify aim_do_physics.F
1122    
1123    checkpoint64n (2013/08/26)
1124    o pkg/bbl:
1125      - update formulation to reduce dispersion of tracer properties in bbl
1126      - replaced horizontal and vertical transport parameters with velocities
1127      - changes results for verification/global_with_exf.yearly
1128    o verification/halfpipe_streamice:
1129      - change to matrix construction; update both Fwd & AD output.
1130    o verification/tutorial_tracer_adjsens:
1131      - OpenAD test: switch to vector-invariant momentum since fluxform with
1132        rStar causes problems with OpenAD; update output.
1133    o tools:
1134      - genmake2: define a common prefix for all temp-file names ; move them
1135        to local /tmp disk (but would be easy to move them back);
1136      - xmakedepend: apply the same switch for temp-files.
1137    o pkg/offline:
1138      - changes for use with rStar (NLFS): assume that we continue to provide
1139        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
1140        output files) and apply r* scaling at each time-step (function of the time
1141        varying Eta field); use normal pickup files (needed for restart with NLFS).
1142    o adjoint with OpenAD:
1143      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
1144        package openad.  This package has to be compiled for all runs with OpenAD
1145        instead of specifying code_oad_all as a modification directory.
1146      - link the fortran templates from tools/OAD_support to the build directory
1147        for preprocessing to avoid conflicts between different setups compiled
1148        simultaneously and simplify cleanup.
1149    o pkg/exf:
1150      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
1151        main model or other pkgs are exchanged in EXF_MAPFIELDS).
1152    o model/src:
1153      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
1154        (similar to do_fields_blocking_exchanges.F).
1155    o tools/genmake2:
1156      - remove TAF output src code just before calling staf (when not doing a fresh
1157        built, will stop if things go wrong with staf).
1158      - fix target "adobj" (left from TAF version-2 transition)
1159    o pkg/diagnostics:
1160      - add a parameter to track the status of pkg/diagnostics activation;
1161        this replace/extend the use of logical param "settingDiags" (to check
1162        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
1163        New S/R to print error message and stop when pkgStatus is not right.
1164      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
1165    
1166    checkpoint64m (2013/08/13)
1167    o model/inc:
1168      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
1169        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
1170    o pkg/kpp & aim_v23:
1171      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1172    o pkg/seaice:
1173      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
1174        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
1175      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1176    o eesupp/src:
1177      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
1178        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
1179    o switch to TAF version-2:
1180      - add flow directives to "freeze" naming convention for ad-routines that
1181        are used in I/O routines of adjoint state and associated common blocks
1182        that are used in adcommon.h (backward compatible with version-1)
1183      - update all ad-optfiles (in tools/adjoint_options + few local to some
1184        verification exp) to switch to latest TAF version (currently 2.5.5);
1185        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
1186        out except for diva).
1187      - the major change with TAF version-2 is that both the differentiated
1188        routines and the forward routines (new) are returned as part of the TAF
1189        output source code. Update genmake2 accordingly.
1190      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
1191        with version-2 when compared to TLM or FWD gradient); other experiments
1192        output show minor changes (machine truncation level); update the few AD &
1193        TLM output with 12 matching digits only (some prior to version-2 switch).
1194    
1195    checkpoint64l (2013/08/05)
1196    o model/src:
1197      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
1198      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
1199        when using TAF but only if using OpenAD.
1200    o pkg/mom_common+fluxform+vecinv:
1201      - always set horiz. viscosity arrays to background value before calling
1202        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
1203        only when using variable horiz. viscosity (useVariableVisc=T);
1204      - simplify mom_vecinv.F (only 1 block for momViscosity).
1205    o pkg/mom_common: variable horiz. viscosity in NH code
1206      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
1207        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
1208      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
1209        useBiharmonicVisc & useVariableVisc.
1210      - fix old bug (already in 1rst implementation of variable horizontal viscosity
1211        in calc_gw.F, version 1.27, 2006/06/20):
1212        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
1213        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
1214      - change background horiz viscosity in vertical momentum (gW) to always be
1215        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
1216        any type of variable viscosity, e.g., viscAh/4Grid)
1217      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
1218        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
1219        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
1220        default viscAh,viscA4 is zero).
1221    o model/src:
1222      - extend length of drC & recip_drC from Nr to Nr+1.
1223    o Divided Adjoint (DIVA) with MPI:
1224      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
1225      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
1226        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
1227    
1228    checkpoint64k (2013/07/23)
1229    o tools/OAD_support:
1230      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
1231        and remove it from genmake2.
1232    o tools/build_options:
1233      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
1234        MPI_HEADER_FILES list (let genmake2 find the missing headers)
1235    o verification/halfpipe_streamice:
1236      - change to driving stress formulation; update both Fwd & AD output.
1237    o tools/genmake2 and Divided Adjoint with MPI:
1238      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
1239      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
1240      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
1241        Makefile, which is set by genmake2, and check which mpi-headers are needed.
1242        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
1243      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
1244    o testreport:
1245      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
1246        perform additional runs (number of additional runs is "add_DIVA_runs" taken
1247        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
1248    o verification/lab_sea (AD test):
1249      - change to test Divided Adjoint Run in this set-up (both standard AD test
1250        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
1251    o pkg atm_ & ocn_compon_interf:
1252      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
1253        staggerTimeStep implementation) and disable (retired) corresponding
1254        parameter.
1255    o pkg/offline:
1256      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
1257      - add S/R OFFLINE_CHECK to print offline parameter summary
1258        and stop if loading a file that is not used;
1259      - enable to calculate GMRedi tensor, KPP mixing and convective index
1260        when the corresponding file(s) is/are not specified (but pkg is used).
1261      - comment out resetting of monitorFreq (to endTime) since it still useful
1262        for monitoring CFL numbers and checking offline fields.
1263    o OpenAD:
1264      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
1265        smaller standard output) and generate new (smaller) output (on baudelaire
1266        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
1267    o model/src:
1268      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
1269        (where external_forcing_adjust was called) and change list of arguments;
1270      - merge external_forcing_adjust.F into external_forcing_surf.F
1271      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
1272        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
1273        previously in file "balance_relax.F", now removed); remove corresponding
1274        arrays in FFIELDS.h.
1275      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
1276        a hack for getting back surfaceForcingS (loaded from file) when using
1277        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
1278      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
1279        (was getting only 11 digits for AD-grad, due to different truncation
1280         error in AD code).
1281    
1282    checkpoint64j (2013/07/04)
1283    o pkg/offline:
1284      - to enable the use of other features with pkg offline (e.g., obcs),
1285        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
1286      - comment out "allowFreezing" (now active) in 2 offline testing exp.
1287    o pkg/exf ALLOW_RUNOFTEMP
1288      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
1289      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
1290      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
1291    o pkg/atm_phys:
1292      - allows to add some damping on uVel,vVel (strength only function of k).
1293    o verification, ad-tests:
1294      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
1295        global_ocean_ebm and offline_exf_seaice.thsice.
1296    o verification/halfpipe_streamice:
1297      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
1298        flux input boundary conditions to be ignored; a fix for this bug changed
1299        verification results for forward test.
1300      - add adjoint test.
1301    o pkg/ptracers:
1302      - allow to restart without SOM pickup (resetting SOM to zero).
1303    o pkg/gmredi:
1304      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
1305      - It uses mixing length theory and suppression by steering level effects to
1306        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
1307        to JPO, for more details).
1308      - It also uses the diffusivity to calculate an eddy induced streamfunction
1309        based on a PV closure (rather than a buoyancy closure as in GM).
1310      - New files added to pkg/gmredi:
1311        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
1312          induced overturning streamfunction (called from gmredi_calc_tensor)
1313        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
1314          for use in gmredi_k3d
1315        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
1316          the eddy diffusivity
1317    
1318    checkpoint64i (2013/06/18)
1319    o pkg/cheapaml:
1320      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
1321        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
1322        with pkg/cheapaml.
1323    o utils/python: add subpackage for cubed sphere function, first example is
1324        simple cs.pcol to plot 2D fields on a map
1325    o pkg/streamice:
1326      - This is a new package in MITgcm, which solves dynamic equations for ice
1327         sheets and ice streams
1328      - At the moment it is independent of atmosphere/ocean dynamics, or any
1329        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
1330        ed that this will change)
1331      - There is a new verification exercise that tests it, halfpipe_streamice,
1332        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
1333        rectangular embayment
1334      - halfpipe_streamice is forward-only for now, will have TAF test soon
1335      - for questions, email dgoldber@mit.edu
1336    o pkg/thsice:
1337      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
1338        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
1339      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
1340         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
1341      - allow precip from pkg/cheapaml to make snow over seaice.
1342    o pkg/cfc:
1343      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
1344      - remove atmos CFC 2-D arrays from common bloc (now local variables)
1345      - change some hard-coded constant to run time parameter for reading and
1346        and interpolating atmospheric CFC ; keep same default as previously.
1347      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
1348      - put arguments in standard order: myTime, myIter, myThid
1349      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
1350        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
1351      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
1352      - new routine to print summary of CFC params and check for consistency.
1353    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
1354      similar to thsice_advdiff.
1355      Note that for the B-grid case the routine parameters uc/vc are overwritten.
1356    o pkg/cfc:
1357      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
1358        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
1359      - fix interpolation of atmphspheric CFC between Sorthern and Northern
1360        hemisphere value.
1361    o pkg/seaice:
1362      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
1363    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
1364                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
1365      - requires an additional time level that is stored in the pickup
1366      - you can start with AB2 from a pickup without this time level with
1367        pickupStrictlyMatch = .false.
1368    
1369    checkpoint64h (2013/05/26)
1370    o pkg/cheapaml:
1371      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
1372        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
1373      - consistent treatment of uWind,vWind location: assume everywhere in
1374        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
1375        (Note: was already the case for Tair,Qair advection);
1376        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
1377      - compute diabatic forcing only in the interior (excluding overlap regions)
1378      - fill in array "Qsw" (for short-wave heating);
1379      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
1380        before any update (consistent with MITgcm state var diagnostics);
1381      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
1382        non periodic ; + adjusted for uWind,vWind (C-grid).
1383    o pkg/seaice:
1384      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
1385        add explicitly pkg/exf in experiments that currently use pkg/seaice.
1386      - allows to compile pkg/seaice without pkg/exf.
1387    o tools/OAD_support:
1388      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
1389        of array "ourStepOf" in function rvNextAction (revolve.F90).
1390    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
1391      - change pkg name (to be used with other atmospheric physics pkg)
1392        but by-pass CVS when making the new pkg so that we keep the CVS history.
1393    o pkg/offline:
1394      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
1395        (previously called from pkg/dic_surfforcing_init.F)
1396    o model/src:
1397      - re-order sequence of calls within packages_init_variables.F, using
1398        standard order, except for:
1399         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
1400         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
1401    o new pkg: atm_phys
1402      - add entry point and source code (previously in contrib
1403          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
1404        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
1405      - re-order sequence of calls within packages_readparms.F,
1406         packages_init_fixed.F and packages_write_pickup.F
1407        (but skip packages_init_variables.F because of TAF issues).
1408      - update contrib/*/atm_gray/ experiment.
1409    o pkg/seaice (ITD code):
1410      - simplify and fix the writing of pickup-files for ITD case
1411    o pkg/seaice (ITD code):
1412      - introduce floe size dependent lateral melt for ITD case;
1413      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
1414      - update seaice_itd experiment main output.
1415    o pkg/thsice:
1416      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
1417        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
1418        changed accordingly pkg/atm2d.
1419    
1420    checkpoint64g (2013/05/01)
1421    o pkg/exf ALLOW_RUNOFTEMP
1422      - if defined,  river and glacier runoff temperature can be read-in from
1423        runoftempfile; runoftempfile needs to have same format as runofffile
1424    o pkg/thsice (& pkg/bulk_force):
1425      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1426        for energy content of Precip + RunOff & Evap (like with pkg/exf).
1427      - change computation domain to always be the interior (without overlap).
1428      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
1429    o verification/tutorial_global_oce_biogeo:
1430      - add preliminary OpenAD setup (still has problems)
1431    o pkg/seaice:
1432      - turn some parameters for choosing the convergence criterion of
1433        the inexact Newton method (JFNK) into runtime parameters for convenience
1434      - clean up seaice_calc_viscosities.F: remove/retire two options for
1435        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
1436        the results of lab_sea/input because a division has been replaced by
1437        a multiplication with the reciprocal (sumNorm)
1438      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
1439        convergence of solver (changes results, of course), and to test some
1440        new features
1441    o model/src:
1442      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
1443      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
1444      - move forcing adjustment (balancing surface forcing) in specific S/R
1445        where might also be applied exchanges (if needed) to forcing arrays.
1446    o pkg/shelfice:
1447      - allow to specify the Ice-Shelf mass per unit area (instead of
1448        shelficeLoadAnomaly) and do the conversion from one to the other
1449      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
1450        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
1451        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
1452        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
1453      - update isomip experiment forward output (get machine truncation error
1454        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
1455    o verification/offline_exf_seaice:
1456      revise data.seaice in input.thermo and input_ad and update results accordingly
1457        HO = 0.2, SEAICE_areaLossFormula = 2,
1458        SEAICE_growMeltByConv = .TRUE.,
1459        SEAICE_doOpenWaterMelt = .TRUE.,
1460      Improve consistency with input.thsice and fix the spurious 500m ice corners
1461    o verification/global_ocean.cs32x15:
1462      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
1463        in icedyn (thsice+seaice-dyn) test and update output.
1464    o verification/offline_exf_seaice:
1465      - adjust list of tested variables (with testreport) and update
1466        standard test output with better slection of monitored fields.
1467    o pkg/cd_code:
1468      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
1469        experiment lab_sea.hb87
1470    o tools/genmake2:
1471      - change default makedepend from the system default to tools/xmakedepend:
1472        When no makedepend is specified, select tools/xmakedepend it the test pass,
1473        otherwise select the system default (if exist and pass the test) or
1474        try to build cyrus-makedepend ; stop if none of the 3 works.
1475    o pkg/exf & pkg/thsice:
1476      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1477        for energy content of Precip + RunOff & Evap. Assumes:
1478       1) Rain has same temp as Air.
1479       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
1480       3) Run-Off comes at the temp of surface water (with same Cp)
1481       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
1482        put directly into Latent Heat flux & should use water-vapor heat capacity.
1483       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
1484        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
1485    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
1486        (compile when SEAICE_ALLOW_JFNK is defined)
1487    o pkg/thsice:
1488      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
1489        implementation): move THSICE_AVE call after the advection (called directly
1490        from thsice_do_advect.F).
1491    o verification/global_ocean.90x40x15 and OpenAD:
1492      New experiment for OpenAD is identical to the one in input_ad except that
1493        multiDimAdvection=.FALSE.,
1494      There is still an issue with this.
1495    o pkg/thsice:
1496      - account for ice velocity (ocean relative velocity) in turbulent heat flux
1497        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
1498        and offline_exf_seaice (main test).
1499    
1500    checkpoint64f (2013/03/31)
1501    o verification/OpenAD:
1502      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
1503    o verification/isomip, pkg/shelfice and OpenAD:
1504      - add OpenAD setup to this exp and make shelfice package work with OpenAD
1505    o verification/tutorial_global_oce_biogeo:
1506      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
1507    o verification/offline_exf_seaice:
1508      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
1509    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
1510      - add OpenAD setup to this exp and make ptracers package work with OpenAD
1511    o pkg/seaice/seaice_evp.F:
1512       mask the asymmetric contribution of the ice-ocean stress (when
1513       the turningAngle is non-zero) over open water to avoid stripes
1514       in the EVP-solutions after many EVP-substeps. This does not change
1515       the verification experiment (because turningAngle=0 in that experiment),
1516       but will affect other EVP solutions with turningAngle.ne.0
1517    o verification, AD & TLM output:
1518      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
1519        additions and multiplications which affect results at machine truncation
1520        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
1521        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
1522        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
1523        digits of matching.
1524    o pkg/seaice:
1525       modify lsr-algorithm so that it vectorizes AND converges by using a
1526       "zebra" method: split vector loop into two with step size 2; this
1527       solves a general convergence problem for the JFNK solver on a vector
1528       computer. It has the potential to even improve convergence for
1529       non-vector machines, but it does change the results so it is turned
1530       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
1531       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
1532    
1533    checkpoint64e (2013/03/05)
1534    o pkg/ecco and several verification experiments:
1535       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
1536       from ecco package, and revert to unified routine in model/src/
1537       Adjust verification experiments accordingly, especially gloal_oce_llc90
1538       Should conclude long-standing work by Gael to reconsile the_main_loop with
1539       ECCO and will enable OpenAD's revolve loop in ECCO setup.
1540    o pkg/generic_advdiff:
1541      - implement compressible flow method for multi-dim advection (similar to
1542        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
1543        TAF generates many recomputations) to use it; no yet coded with implicit
1544        vertical advection.
1545      - change experiment advect_cs (new output) and advect_xy (same output)
1546        to test compressible flow multi-dim advection.
1547    o pkg/generic_advdiff:
1548      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
1549        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
1550    o pkg/seaice:
1551      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
1552        bug affects two verification experiments (lab_sea and lab_sea.hb87),
1553        recover old (wrong) results by setting noSlipFac = 2. in
1554        seaice_calc_strainrates.F;
1555      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
1556      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
1557        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
1558      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
1559    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
1560      - new subroutines seaice_lsr_tridiagu/v
1561      - introduce loop bounds i/jmin/max to be able to use a restricted
1562        additive Schwarz method, but not used for now.
1563      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
1564      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
1565    o OpenAD support
1566       Reorganize S/R call for overall time-stepping loop to facilitate
1567       OpenAD revolve loop replacement
1568       (new S/R main_do_loop.F)
1569    o model/src:
1570      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
1571      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
1572        ADAMS_BASHFORTH2.
1573    o pkg/cheapaml:
1574      - add new parameter (default=F, same as before) to disable full domain
1575        (including land) periodicity in X & Y dir.
1576      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
1577        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
1578        into single S/R CHEAPAML_TIMESTEP.
1579    
1580    checkpoint64d (2013/02/17)
1581    o pkg/monitor (angular momentum):
1582      - do not add Eta contribution to the total AM if using rigid-lid;
1583      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
1584      - horizontal discretisation: compute Zonal wind contribution separately for
1585        each component (instead of from cell centered averaged) and use the 4
1586        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
1587      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
1588        FreeSurf) if using vectorInvariant momentum.
1589    o model/src (horizontal grid):
1590      - move initialisation of all horizontal grid arrays to null value
1591        from specific horizontal grid S/R to main S/R INI_GRID;
1592      - add 2 new arrays to project model C-grid velocity on to zonal direction
1593        (similar to AngleCosC & -AngleSinC but at U and V point location) and
1594        compute them in S/R CALC_GRID_ANGLES.
1595    o pkg/seaice: replace a hard coded parameter by a runtime parameter
1596        SEAICE_JFNK_tolIter
1597    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
1598        preconditioner for JFNK (run LSR into the overlaps as far as possible,
1599        i.e OLx/y-2, but overwrite the solution in the overlaps)
1600      - extend loop range in seaice_calc_viscosity
1601      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
1602      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
1603      - slightly modify loops in tridiagonal solver lsr-preconditioner
1604      - by default remove the extra exchange in seaice_preconditioner with a
1605        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
1606      - modify offline_exf_seaice so that old results without RAS are reproduced
1607        for output.dyn_jfnk.txt
1608      in seaice_fgmres.F (unrelated to RAS)
1609      - add a cpp-flag option for a re-ordered mapping (potentially more
1610        efficient), but because this changes the results, turn it off by
1611        default
1612      - replace the save statement by local common blocks
1613    o utils/matlab:
1614      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
1615      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
1616        instead of local script "load_cs.m".
1617    o pkg/seaice:
1618      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
1619        to the scalarProductMetric and the unrolling. By chance this does not
1620        change the verification experiment, because of the particular domain
1621        decomposition
1622    o pkg/diagnostics:
1623      - change default missing_value from UNSET_RL to -999.
1624    o pkg/layers: improve vectorization of layers_fluxcalc.F
1625      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
1626        time spent in this routine by more than a factor of 3 on an NEC-SX8
1627      - step 2: replace search algorithm by a bisection algorithm found in
1628        Press et al. Numerical Recipes in Fortran. This algorithm can be
1629        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
1630        For now, use this algorithm only for TARGET_NEC_SX defined.
1631      - moved the search algorithm into a separate subroutine, that is kept
1632        within the same file for automatic inlining.
1633      - modified catching potential errors
1634    o pkg/ecco:
1635      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
1636    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
1637      - modifications for ALLOW_GENTIM2D_CONTROL
1638      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
1639      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
1640      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
1641      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
1642    o model/src:
1643      - account for moist thermodynamics in (dry) potential temperature equation;
1644        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
1645        and cpl_aim+ocn.
1646      - also switch to standard compiler (gfortran, was using ifort previously)
1647        for fizhi-cs experiments reference output.
1648    o pkg/ctrl:
1649      - 1st step toward generic time-varying control variable (2D) via CPP option
1650        ALLOW_GENTIM2D_CONTROL
1651      - note new namelist ctrl_nml_genarr in data.ctrl
1652    o verification/global_ocean.cs32x15:
1653      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
1654        thsice calling sequence and update "output.icedyn.txt" output file.
1655    o pkg/ptracers:
1656      - from Ryan A.: code to allow to restart a tracer at regular time interval
1657        specifying a reset frequency and a reset-phase (for each tracers).
1658    o pkg/thsice:
1659      - implement new sequence of calls for thsice+seaice:
1660          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
1661          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
1662      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
1663        in CPP_OPTIONS.h) to recover old sequence;
1664      - update diagnostics for Intermediate State thsice diagnostics: now filled
1665        just before advection (instead of just after advection in old sequence);
1666      - update output of experiment offline_exf_seaice (standard test);
1667      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
1668        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
1669    o pkg/aim_v23:
1670      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
1671      - use standard pkg/mdsio routines to read & write CO2 pickup file;
1672      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
1673      - Implement new sequence of calls for seaice advection (with thsice and
1674        seaice diffusion): do ice advection after ice-Thermodynamic (previously
1675        was done before); change aim_do_physics.F (split the bi,bj loops block);
1676      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
1677    o pkg/thsice:
1678      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
1679        where just seaice diffusion is used without seaice-dynamics.
1680    
1681    checkpoint64c (2013/01/18)
1682    o pkg/seaice:
1683      - add a parameter JFNKres_tFac that can replace JFNKres_t
1684        (= JFNKres_tFac*JFNKresidual before JFNK solver)
1685      - add a line search option to the JFNK solver
1686      - move update of u/vIce and computation of initial residual into a separate
1687        routine (same file); makes the code a little easier to read (?)
1688      - the line search requires computation of the residual and for some reason
1689        I cannot do the update of u/vIce at the beginning of the Newton loop
1690        without changing the results, so we move computation of the new residual
1691        also to the end of the Newton loop, even without the line search
1692    o pkg/mdsio:
1693      - write missing value (corresponding to undefined array value) to meta files;
1694        skip this if missing value is one (UNSET_RL would be a better value for the
1695        case of undefined missing value but it's current the default missing-value);
1696        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
1697    o pkg/exf & thsice:
1698      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
1699        diagnostics) even when SHORTWAVE_HEATING is #undef;
1700    o verification/cfc_example:
1701      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
1702        illustrate how to use it).
1703    o verification/offline_exf_seaice:
1704      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
1705        files to only one time-record.
1706      in input.thermo: narrow the 2 bands of low initial ice-concentration near
1707        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
1708        snapshot output; same mcPheePiston value as in thsice with
1709        surf-current=0.2m/s.
1710      in input.thsice: similar set-up as in input.thermo (channel with same seaice
1711        initial conditions).
1712    o verification/cfc_example:
1713      - update file "data" with more standard choice (default rotationPeriod,
1714        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
1715        set deltaTFreeSurf to deltaTtracer) and update the output.
1716    o pkg/layers:
1717      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
1718      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
1719    o verification/offline_exf_seaice:
1720      - set all {field}period to zero for constant-in-time forcing (not tested
1721        anywhere else).
1722    o verification/offline_exf_seaice:
1723      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
1724      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
1725    o model/src:
1726      - implement Finite-Volume method for (hydrostatic) presure gradient
1727        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
1728    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
1729      - In order to be compatible with the default EVP code, this requires changing
1730        the EVP code around a little; and because any small change immediately
1731        breaks the lab_sea.hb87 verification experiment, the reference output is
1732        updated two times (each time the remaining aggrement was only 2 digits):
1733        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
1734        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
1735        The adjoint test lab_sea.evp also needed to be updated.
1736      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
1737        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
1738        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
1739        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
1740        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
1741        kept obscure, because I need to test it a little more.
1742    o pkg/cheapaml:
1743      - fix few incorrect type (_RL/_RS) in subroutine calls.
1744    o pkg/seaice:
1745      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
1746        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
1747    o model/src:
1748      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
1749        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
1750        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
1751    o pkg/cheapaml:
1752      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
1753        update output of experiment cheapAML_box.
1754      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
1755        and set them only in one place (cheapaml_readparms.F).
1756      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
1757      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
1758        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
1759    o model/src/the_main_loop.F:
1760      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
1761    o pkg/seaice:
1762      - remove legacy branch code.
1763      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
1764    o verification/*/code*/SEAICE_OPTIONS.h:
1765      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
1766        SEAICE_CAP_HEFF).
1767    o pkg/cheapaml:
1768      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
1769        to load new forcing fields.
1770      - add missing "_d 0" where it's needed; + some editing (improve indentation).
1771      - remove switch to "-r8" compiler option (no longer needed) in verification
1772        cheapAML_box, keep same output (small trucation error differences).
1773    o verification/offline_exf_seaice:
1774      - add thermodynamics only test.
1775    o verification/cheapAML_box:
1776      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
1777        keep same output (same 14 digits for cg2d).
1778      - switch on "-r8" compiler option (some numerical values are missing
1779        the "_d 0") and update output (only 6 digits for cg2d were preserved).
1780    
1781    checkpoint64b (2012/12/24)
1782    o pkg/cheapaml:
1783      - remove un-used variables (Qnet,EmPmR) from pickup files.
1784      - store tendency of advected variables into cheapaml pickup file
1785        and fix the AB-2 restart.
1786    o verification/offline_exf_seaice and lab_sea adjoint:
1787      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
1788      - switch to 4 time steps in offline, consistent with lab_sea.
1789      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
1790      - update results after change of experiment seaice.
1791    o pkg/seaice:
1792      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
1793        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
1794        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
1795        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
1796    o model/src:
1797      - add run-time parameter to select CG2D solver minimum-residual solution
1798        (in case of a poor convergence).
1799    o pkg/seaice/seaice_lsr.F
1800      - move calculation of matrix coefficients into new
1801        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
1802        file; the main purpose of this change is to be able to reuse the code
1803        in S/R SEAICE_PRECONDITIONER
1804      - modify the computation of the residual so that the mass of sea-ice
1805        is not used twice; this simplifies the calculations, but since
1806        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
1807        not tested in testreport---this does not affect the testreport results.
1808    o verification/seaice_obcs:
1809      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
1810        verification/lab_sea/input.salt_plume; changes results/output.txt*
1811    o model/src:
1812      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
1813    o pkg/seaice:
1814      - improve description of parameters in seaice_fgmres.F and start
1815        cleaning up the code
1816      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
1817        second argument
1818      - add a metric based on grid cell area to SEAICE_SCALPROD; update
1819        results of offline_exf_seaice.dyn_jfnk
1820      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
1821    o pkg/aim_v23:
1822      - fix an other bug in dissipation heating (grid-cell area was missing).
1823    o model/src + pkg/seaice:
1824      - add global (multi-tile) linear solver for pair of tri-diagonal system
1825        along X and Y lines, respectively for U and V component.
1826        Note: 1) MPI and cube-exchange not yet coded.
1827            2) probably not accurate for poorly conditioned / large size problem.
1828      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
1829        default: not compiled and not used.
1830    o pkg/seaice:
1831      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
1832        introduce bi/bj loops and use global_sum_tile_rl instead of
1833        mpi_allreduce in seaice_fgmres.F
1834      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
1835      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
1836      - add a verification experiment for JFNK in offline_exf_seaice
1837    o verification:
1838      - change (for now, only fwd test) offline_exf_seaice experiment:
1839        use a re-entrant channel with idealized coastline (trapezoidal shape)
1840        at southern boundary to explore seaice dynamics and thermodynamics
1841        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
1842        secondary test (input.thsice) use thermodynamics only with SST relaxation.
1843      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
1844    o pkg/exf:
1845      - disable "sstExtrapol" when Nr=1
1846    o verification:
1847      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
1848        to test pkg/cheapaml.
1849    o pkg/aim_v23 & pkg/shap_filt:
1850      - fix dissipation heating (erroneous gravity multiplication factor).
1851    o pkg/seaice:
1852      - remove unused field pressPre from jfnk solver
1853      - rename two subroutines in seaice_preconditioner.F
1854    o eesupp/src:
1855       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
1856    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
1857       - remove wrong parts of the rhs and the lhs (were in there
1858         because I did not understand the concept of this preconditioner)
1859       - add an exchange between u- and v-sweep. This increases communication
1860         by a factor of two but improves the convergence of jfnk. Ideally,
1861         one would like the u- and v-sweep to be independent. So far within
1862         undocumented ifdefs
1863       - reorganize the extra computations for printing the residuals
1864    o tools/genmake2:
1865      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
1866        since it's not necessary (and was preventing to use MNC in some cases).
1867    
1868    checkpoint64a (2012/11/16)
1869    o pkg/autodiff:
1870      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
1871        autodiff_readparms.F no longer depends on calling order (within
1872        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
1873        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
1874        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
1875    o pkg/obcs:
1876      - adding tidal velocity forcing capability to obcs
1877        for usage example, see verification/seaice_obcs/input.tides
1878    o pkg/seaice:
1879      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
1880        SEAICE_LSRrelaxU/V
1881      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
1882    o pkg/aim_v23:
1883      - implement heating from friction (bottom friction and stratospheric drag).
1884    o pkg/shap_filt:
1885      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
1886        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
1887    o model/src:
1888      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
1889        time-constant addMass field from file (addMassFile);
1890      - support for heating due to friction (and Kinetic Energy dissipation):
1891        add option, run-time switch and 3-D field array + support code ; each pkg
1892        or S/R can add heating contribution (if there is a sink of KE); the sum is
1893        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
1894    o pkg/seaice:
1895      - complete merge of ITD code into seaice_growth.F
1896        from MITgcm_contrib/torge/itd/code/
1897        no verification so far, but Torge Martin tested
1898        "1-D test case and Beaufort set up;
1899        deliver okay results after 1 model year."
1900      - complete merge of SEAICE_SIZE.h into all relevant routines
1901      - move computation of eta at Z-points into calc_viscosities
1902        + introduce global field etaZ
1903        + add different methods for computing etaZ, for now the old
1904          method (simple averages of eta to Z-points) is hardwired
1905        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
1906          seaice_preconditioner
1907      - simplify computations for SEAICE_ZETA_SMOOTHREG
1908      - seaice_preconditioner:
1909        + replace one remaining press by pressLoc (mistake)
1910        + adjust printing of residuals
1911      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
1912        + add (SEAICE.h) and rename some counters (initiliased in
1913          seaice_init_fixed.F)
1914        + add _BEGIN/END_MASTER (myThid)  around print statements
1915        + print total number of iterations and failures over SEAICE_monFreq
1916          interval to STDOUT
1917      - move control over output-messages by fgmres to seaice_jfnk to save
1918        some operations
1919      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
1920        in order to make restarts with sol .ne. zero (fgmres with restarts)
1921        (seaice_jfnk.F, seaice_fgmres.F)
1922      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
1923        a serious convergence problem when open boundaries are involved
1924    o pkg/ggl90: fix computation of control volumes for the case of
1925      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
1926      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
1927    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
1928    o pkg/autodiff
1929      - Add inAdMode switch for SEAICEuseDYNAMICS:
1930        SEAICEuseDYNAMICSinAdMode
1931        (extend logic in ADAUTODIFF_INADMODE_SET)
1932    o pkg/seaice
1933      - Step 1 of merging ice-thickness distribution (ITD) code from
1934        MITgcm_contrib/torge/itd/ (author: Torge Martin)
1935        The code implements concept laid out in Thorndike et al. (1975);
1936        code is enabled via CPP flag SEAICE_ITD
1937        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
1938        code is not complete yet!!
1939      - SEAICE_SIZE.h now included in almost all seaice routines
1940    o verification (using seaice):
1941      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
1942        global_ocean.cs32x15.seaice ; update results.
1943      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
1944      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
1945        offline_exf_seaice (previously compiling B-grid).
1946    o pkg/exf:
1947      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
1948        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
1949        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
1950    o pkg/layers (adjust changes from Sept 19):
1951      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
1952        this allows to remove "layers_maxNum" dimension from all layers arrays.
1953    o pkg/layers (adjust changes from Sept 19):
1954      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
1955      - snap-shot extended to all type of layers (not just the 1rst type);
1956      - remove layers variables when corresponding CPP option is undef.
1957    o pkg/layers:
1958      - rename pkg/layers variable and add new output (layer exist & un-weighted
1959        velocity in layer)
1960    o pkg/seaice:
1961      - simplify (?) ocean-drag coefficent computations by using
1962        the same routine in all three solvers (saves some code lines)
1963      - remove global fields DRAGA and DRAGS from C-grid code and
1964        declare them locally in lsr.F (the only place where they are
1965        still used)
1966      - update AD output of lab_sea.evp (very sensitive anyway).
1967    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
1968      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
1969      and SEAICEuseJFNK=.true. A few things to note:
1970      - involves a FGMRES, that is parallel but very inefficient,
1971        because of many scalar products (global sums) in the Gram-Schmidt
1972        orthogonalization method. Needs to be replaced. Original code
1973        from J.-F. Lemieux
1974      - preconditioner for FGMRES is a stripped down version of LSOR
1975      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
1976        preconditioner. For the preconditioner, the default is set to 10.
1977      - Jacobian times vector is computed with finite differences
1978      - marginally related to JFNK-solver: add a smooth regularization for
1979        zeta with tanh that will improve convergence (Lemieux and Tremblay,
1980        2009) for any implicit solver (not implemented for EVP because EVP
1981        does not need this regularization in the first place). Define
1982        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
1983    o eesupp/src:
1984      - check in genmake2 that intrinsic S/R flush is available.
1985      - add S/R to flush IO unit (if intrinsic S/R flush is available)
1986      - flush standard & error msg unit before MPI termination
1987      - if debugMode, flush IO unit after printing msg
1988    o pkg/ctrl:
1989      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
1990        to ctrl_set_unpack_xyz.
1991    
1992    checkpoint64 (2012/10/09)
1993    o pkg/shelfice
1994      - in mom_fluxform.F, mom_vecinv.F:
1995        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
1996        Bug fix KappaRU -> KappaRV
1997        does not change verification/isomip but may change other setups
1998        (presumably constant KappaRU=KappaRV)
1999      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
2000    o pkg/obcs:
2001      - fixed some indexing bugs in obcs_seaice_sponge.F
2002      - added obcs relaxation subroutines for HSALT and HSNOW
2003      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
2004    o pkg/seaice:
2005      - add "multicategory" parameterization for snow in analogy to ice,
2006        default is off for now.
2007    o pkg/obcs:
2008      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
2009        see verification/seaice_obcs/input.seaiceSponge for example application.
2010      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
2011        index setting by master-thread. This fix multi-threads Pb in previous modifs.
2012    o pkg/layers :
2013      - add diagnostics to pkg/layers
2014      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
2015        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
2016    o pkg/generic_advdiff/gad_implicit_r.F :
2017      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
2018    o pkg/seaice/seaice_growth.F:
2019      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
2020    o pkg/obcs:
2021      - change default setting of OBCS_UVICE_OLD from defined to undef;
2022      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
2023        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
2024      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
2025      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
2026        with Southern & Western OB at a tile edge (at least in a simple set-up).
2027    o pkg/obcs:
2028      - change settings of OB index in case OB coincides with tile edge (shared by
2029        2 tiles), so that common OB location is registered by both tiles (instead of
2030        only 1). However, for Southern and Western OB, index value = 0 is not
2031        recognized as valid OB index (=default null value) and needs to be fixed.
2032      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
2033      - new parameter "OB_indexNone" for null index value (for now, still zero)
2034        to replace hard-coded null index value of zero.
2035    o pkg/exch2:
2036      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
2037        always check buffer-size (but outside the loop); move checking for valid
2038        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
2039        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
2040    o pkg/ctrl (pack & unpack):
2041      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
2042        (locally defined) for different variables (+ remove the variable-specific
2043        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
2044        (to be extended to other local file names in ctrl.h).
2045    o pkg/flt:
2046      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
2047    o pkg/mdsio:
2048      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
2049    o tools/genmake2:
2050      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
2051        (added by Alistair in version 1.51 for building without make depend);
2052      - remove Header files list (H_SRC_FILES) from the dependence of targets
2053         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
2054        place in version 1.23): this save going through staf when unrelated header
2055        file has been modified.
2056       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
2057        "make depend" step, still need to do "make links" before "make adtaf".
2058    o eesupp/src (+ few pkg src files) & genmake2:
2059      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
2060      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
2061      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
2062         upper/lower case ; account for space between "#" and undef/define)
2063    o pkg/flt (with exch2):
2064      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
2065      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
2066    
2067    checkpoint63s (2012/09/05)
2068    o pkg/ecco:
2069      - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.
2070      - add more relevant #ifdef ALLOW_SMOOTH ones.
2071      - sort out useAtmWind, useSMOOTH, ctrlSmoothCorrel2D.
2072    o pkg/ctrl:
2073      - CTRL_OPTIONS.h : document CPPs related to smoothing; ALLOW_SMOOTH_CORREL2D/3D,
2074        ALLOW_CTRL_SMOOTH, ALLOW_SMOOTH_CTRL2D, ALLOW_SMOOTH_CTRL3D.
2075      - ctrl.h : document run time params doInitXX, doMainPack, doMainUnpack, doPackDiag,
2076        doSinglePrecTapelev (audodiff param!), ctrlSmoothCorrel2D (new) and
2077        ctrlSmoothCorrel3D (new).
2078        The added ctrlSmoothCorrel2D/3D replace the old ALLOW_SMOOTH_CORREL2D/3D CPP.
2079      - ctrl_readparms.F : initialise ctrlSmoothCorrel2D/3D and read from namelist.
2080      - ctrl_init.F ctrl_pack.F ctrl_unpack.F : switch off ustress/vstress
2081        controls when useAtmWind, and vice versa.
2082      - ctrl_map_ini_ecco.F : UVEL0, VVEL0, edtaux, edtauy cannot be smoothed as tracers.
2083      - ctrl_get_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL2D with
2084          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel2D, IF useSMOOTH.
2085      - ctrl_map_ini_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL3D with
2086          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel3D, IF useSMOOTH.
2087      - ctrl_set_pack_xy[z].F, ctrl_set_unpack_xy[z].F:
2088        replace ALLOW_SMOOTH_CORREL2D/3D brackets with ctrlSmoothCorrel2D/3D.
2089    o pkg/smooth:
2090      - remove un-necessary includes.
2091      - remove ALLOW_SMOOTH*D and ALLOW_SMOOTH_CORREL*D brakets.
2092        Those CPP options were never defined, and not necessary.
2093    o model/src:
2094      - fix CPP brackets in ini_mixing.F (GM_background_K belongs to gmredi).
2095      - standard treatment of useSMOOTH.
2096    o pkg/autodiff:
2097      - add LOGICAL useGGL90inAdMode, useGGL90inFwdMode, useSALT_PLUMEinAdMode,
2098        useSALT_PLUMEInFwdMode allowing to switch off ggl90 and salt_plume adjoint.
2099    o pkg/exch2:
2100      - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)
2101        + start to remove ALWAYS_USE_MPI in source code that TAF does not see.
2102      - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag
2103        and tiles to process mapping.
2104      - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)
2105        moving /EXCH2_FILLVAL_RX/ & /W2_EXCH2_COMMFLAG/ to W2_EXCH2_TOPOLOGY.h;
2106        rename "exch2_tProc" to "W2_tileProc" and move seting of e2FillValue_RX
2107        from w2_eeboot.F to w2_readparms.F.
2108    o eesupp/src:
2109      - set exchNeedsMemsync & exchUsesBarrier according to "usingMPI" (instead of
2110        ALWAYS_USE_MPI) + moved from ini_communication_patterns.F to eeset_parms.F;
2111        also move setting of exchCollectStatistics from exch_init.F to eeset_parms.F
2112      - in eedie.F and all_proc_die.F, always call MPI_FINALIZE when ALLOW_USE_MPI
2113        is defined (remove condition on usingMPI) to match cases where MPI_INIT
2114        has been called.
2115      - fix bug I put in previous modif of exch_sm_3d_rx.template (not much used);
2116      - change default (non-MPI) value of myPid (from 1 to 0) to match MPI settings
2117        (so that on 1 proc, get same myPid independently of usingMPI)
2118      - add a stop if multi-procs but usingMPI=F ; stop also if usingMPI=T and
2119        useCubedSphereExchange with EXCH-1 (safer).
2120      - add "if usingMPI" where it was missing (+ start to remove ALWAYS_USE_MPI).
2121    o pkg/ggl90:
2122      - fix bug in filling corner mask array "mskCor" (FILL_CS_CORNER_TR_RL call)
2123        used in ALLOW_GGL90_SMOOTH code.
2124    o pkg/flt:
2125      - fix typo in FLT_WITHOUT_Y_PERIODICITY (the effect was to ignore stopping
2126        floats at the Southern end of the domain).
2127    o eesupp/inc:
2128      - add a list of CPP-options which can be set by Makefile (DEF_IN_MAKEFILE.h);
2129        but not used (and not to be used) anywhere, just for documentation.
2130    o pkg/autodiff, exf, ptracers & seaice (AD & TL output):
2131      - comment out the very nasty "writeBinaryPrec = writeStatePrec" line, since:
2132        a) can damage previously written records in any other multi-record files.
2133        b) if needed, can easily do it cleanly, by calling S/R WRITE_REC_3D_RL/S.
2134    o tools/genmake2:
2135      - define variable MAKE within Makefile and use it in place of 'make';
2136      - update AD_CONFIG.h (if needed) before building any of the executable
2137        (forward, adjoint or tangent-lin); this involves a 2nd invocation of make;
2138        and add the usual #ifndef/#define AD_CONFIG_H in AD_CONFIG.h;
2139      - always print usual warning comment 'this file is automatically generated'
2140        from script convert_cpp_cmd2defines (+ remove this warning from genmake2).
2141    o pkg/cheapaml:
2142      - updated to correspond to the code used in accepted paper (Nico Wienders).
2143    o pkg/exf:
2144        added run time switch useAtmWind to replace ALLOW_ATM_WIND cpp switch.
2145        ALLOW_ATM_WIND now just sets the useAtmWind default (see exf_readparms.F)
2146        and force defines ALLOW_BULKFORMULAE (EXF_OPTIONS.h).
2147    o pkg/exf, autodiff, ctrl, ecco and seaice:
2148        remove ALLOW_ATM_WIND brackets, or replace them with useAtmWind ones.
2149    o pkg/ctrl, ecco:
2150        allow to compile both ALLOW_U/VSTRESS_CONTROL and ALLOW_U/VWIND_CONTROL.
2151        Depending on useAtmWind, one is inactive, and the other is active (see
2152        exf_getffields.F/exf_getsurfacefluxes.F).
2153    o tools/genmake2:
2154      - improve error msg when failing in 2nd test of check_for_broken_Ff
2155      - fix option '-makefile' short-name (-mf according to genmake2 -help)
2156      - source local config file "genmake_local" just after processing the genmake2
2157        command arguments (previously done before processing arg).
2158    o pkg/grdchk:
2159      - add a call to TURNOFF_MODEL_IO for Tangent-Linear run (in this case, call
2160        to this routine from cost_final has been dropped in g_cost_final)
2161      - improve printed information (more explicit msg, no longer using "print *,"
2162         fix fcpertminus printed value).
2163    o model/src:
2164      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
2165        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
2166        this prevents getting cost-funct reset in adinitialise_varia recomputations.
2167    o pkg/dic:
2168      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
2169        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
2170    o pkg/grdchk:
2171      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
2172      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
2173    o pkg/autodiff/ctrl/grdchk :
2174      - attempt to sort out what works and what does not,
2175        with regard to I/O, and to warn/stop accordingly.
2176    o pkg/grdchk:
2177      - attempt to fix grdchk in the case of useSingleCpuIO.
2178      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
2179       statements were moved from grdchk_main.F and into
2180       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
2181      - a global sum is applied to record numbers icvrec/layer
2182       out of grdchk_loc so that they be passed to I/O routines.
2183    o pkg/smooth:
2184      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
2185        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
2186    o verification/testreport:
2187      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
2188      - can also use compressed (gzip) reference output file;
2189      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
2190        to be easier to collect by testreport.
2191      - update existing TLM output (half out-of-date by more than 3 yrs).
2192      - report NETCDF & LAPACK settings (from genmake2) in output dir.
2193      - report run-time in each individual summary (previously only for AD test);
2194        for TLM test, add also TAF version.
2195      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
2196    
2197    checkpoint63r (2012/08/15)
2198    o tools/genmake2:
2199      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
2200    o pkg/ecco/ecco_cost_final.F :
2201      - fix fc print statements (to stdout and costfunction0000) so
2202        that the printed value is always after the global sum.
2203    o pkg/seaice/seaice_dynsolver.F :
2204      - fix ice strength assymptote at SEAICE_area_max<1
2205        (no change for the standard case of SEAICE_area_max=1)
2206    o some cleaning:
2207      - pkg source files: ensure that all *.F files from each pkg included the
2208        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
2209        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
2210        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
2211        includes;
2212      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
2213      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
2214        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
2215        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
2216      - update option-file CPP_OPTIONS.h of all AD experiments:
2217        * no longer include PACKAGES_CONFIG.h ;
2218        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
2219        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
2220          including ECCO_CPPOPTIONS.h).
2221    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
2222      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
2223        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
2224        not necessary accurate).
2225      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
2226        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
2227        deliberately break compilation (a remainder that it needs to be customized)
2228      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
2229      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
2230      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
2231    o tools/genamke2:
2232      - check for lapack.
2233    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
2234      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
2235        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
2236        from both packages.
2237      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
2238      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
2239      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
2240        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
2241    o pkg/cost : add comments to explain special and/or untested setups.
2242    o pkg/exf:
2243      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
2244        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
2245    o verification/*/code_ad:
2246      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
2247      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
2248      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
2249        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
2250    o pkg/seaice :
2251      - added possibility to change ice strength/PRESS0 relationship to
2252        HEFF, according to the following run time parameters
2253        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
2254        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
2255        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
2256    o pkg/ggl90 :
2257      - added run time flag mxlSurfFlag to include the code that ensure
2258        mixing between first and second level (previously included as a comment)
2259    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
2260      - add test of newly added dumpAdByRec=T option where
2261        we write all records to one file per variable.
2262    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
2263      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
2264        to check that this code is ok with taf and compiles in adjoint.
2265    o pkg/autodiff :
2266      - added run time param dumpAdByRec : ad dump format switch.
2267        If true then write all records to one file per variable.
2268        Else write one file per record (remains the default).
2269      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
2270    o pkg/seaice:
2271     - Added SEAICEuseTILT run time switch : if set to
2272       false then omit the tilt term in seaice dynamics.
2273     - Fix free drift calculation.
2274    o pkg/shelfice:
2275      When initializing SHELFICEDragQuadratic, set default to be
2276      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
2277      but retain option to set it independently
2278      (inconsistenty spotted by Veronique Dansereau)
2279    o eesupp/inc:
2280      - in EEPARAMS.h, add real-type constant for some frequently used simple number
2281         (0,1,2,1/2), with name explicitly referring to RS/RL type.
2282    o model/src:
2283      - move balancing of relaxation terms to new S/R balance_relax.F.
2284    o pkg/autodiff:
2285      re-write active I/O high-level (control) S/R:
2286      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
2287      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
2288      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
2289        MDS_READ/WRITE_FIELD); change loops to multi-threads.
2290      - update and merge active_file_control_slice.flow into active_file_control.flow
2291      - update the calls in lower level S/R (active_file.F, active_file_g.F and
2292        active_file_ad.F) keeping the argument list and function unchanged.
2293      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
2294        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
2295      - new low-level active I/O routines, one for each type (RL/RS), for active var
2296        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
2297        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
2298        right type.
2299    o autodiff and RS=real*4:
2300      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
2301        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
2302      - change argument type of 3-D mask argument to _RS to match type in the call
2303        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
2304    o pkg/thsice:
2305      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
2306      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
2307        fresh-water flux: uniform correction or proportional to local precip.
2308    o pkg/ctrl:
2309      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
2310      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
2311                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
2312      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
2313    
2314    checkpoint63q (2012/07/30)
2315    o pkg/autodiff:
2316      note about monitor and snap-shot of ad-variables:
2317      a) need to apply ADEXCH before monitor or output of ad-vars to include
2318       overlap contributions (was done for adjDump but missing for monitor).
2319      b) since ADEXCH implies adding overlap values to interior array, machine
2320       truncation error is expected when adding an ADEXCH call in the middle of
2321       the time-stepping (although mathematically identical).
2322      modifs:
2323      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
2324        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
2325      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
2326        apply ADEXCH before monitor or snap-shot of ad-variables:
2327           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
2328      - implement new method (copy+adexch) for snap-shot and monitor of main model
2329        ad-vars (initially not used by default -> output unchanged).
2330      - change default (set to 2) to use new method and update few output_adm.txt
2331        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
2332        and both tutorial_tracer_adjsens tests).
2333      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
2334        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
2335    o pkg/ctrl:
2336      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
2337      generic control variables via
2338      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
2339      Only required customization should be S/R ctrl_map_ini_genarr.F
2340      (routine in repository contains example)
2341    o pkg/exf:
2342      - fix and refine checking of surface-relaxation setting when using EXF
2343    o verification (adjoint exp):
2344      - reduce length of simulation by half for experiment global_ocean.cs32x15
2345        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
2346    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
2347      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
2348        of KE that can occur with aggressive optimization
2349      + put quadratic bottom drag calculation in separated loops (only done if
2350        using bottomDragQuadratic)
2351    o model/src: CG2D_NSA
2352      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
2353         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
2354      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
2355         change cg2d residual target to be expressed in Wunits (=> do not normalise
2356         RHS ; this fix global_max Pb with TAF); update output.
2357    o verification/tutorial_tracer_adjsens:
2358       improve parameter consistency (and get rid of warnings):
2359       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
2360       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
2361       - use staggerTimeStep (for stability) in som81; use default rotation period.
2362    o pkg/exch2:
2363      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
2364        reset to 0 = 1 long line in X)
2365    o pkg/mdsio:
2366      - fix reading of dimensions from meta file for large-size domain
2367    o model/src:
2368      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
2369      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
2370        Cubed-Sphere Exch with CS-corners inside the domain;
2371        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
2372        globalArea and to set hasWetCSCorners.
2373      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
2374        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
2375      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
2376        useCDscheme and useCubedSphereExchange).
2377    o pkg/seaice/seaice_growth.F :
2378      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
2379        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
2380        when the previous code was not correct.
2381      - in all cases diagnoze the boundary condition mismatch to SIaaflux
2382      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
2383        that term to QNET (essentially to set the melt/freeze water to 0degC).
2384        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
2385    o verification/global_ocean.cs32x15/input.seaice :
2386      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
2387      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
2388      - update results (output.seaice.txt) accordingly.
2389    o verification/lab_sea/input/data.seaice :
2390      - remove SEAICEheatConsFix, which is now be tested
2391        in global_ocean.cs32x15. The presently coded fix
2392        is only consistent with real fresh water + nlfs.
2393      - update results (output.txt) accordingly.
2394    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
2395    o AD_CONFIG.h file:
2396      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
2397      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
2398        add it explicitly in each fortran src file where it is needed.
2399        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
2400        thus introducing potentially wrong dependency; therefore, better to include
2401        it only where it's really needed, and after any other included OPTIONS file
2402        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
2403        or ALLOW_TANGENTLINEAR_RUN).
2404    
2405    checkpoint63p (2012/07/06)
2406    o pkg/autodiff:
2407      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
2408      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
2409        which are now read from new parameter file "data.autodiff" (inAdExact
2410        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
2411      - add file "data.autodiff" in all verification/*/input_ad/ directories.
2412      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
2413        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
2414    o verification/tutorial_tracer_adjsens/
2415      - add extra sub-verification which uses "SOM" advection scheme
2416        (2nd Order-Moment Advection Scheme, Prather Limiter) with
2417          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
2418        and in data:
2419          multiDimAdvection=.TRUE.,
2420          tempAdvScheme=81,
2421          saltAdvScheme=81,
2422    o model/src:
2423      - introduce ALLOW_BALANCE_RELAX which allow the removal
2424       of the global mean of relaxation terms by setting
2425       balanceThetaClimRelax and balanceSaltClimRelax
2426      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
2427       This case is now treated appropriately in seaice_growth.F
2428    o pkg/seaice:
2429      - do balanceEmPmR and balanceQnet based on the net fluxes
2430        (SItflux) that enter the ocean+ice system rather than QNET
2431        and EMPMR. Works best in real fresh water.
2432      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
2433        out of the diagnotics bloc, and stored in global arrays.
2434    
2435    checkpoint63o (2012/06/29)
2436    o vertical mixing schemes:
2437      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
2438      - replace computation of density (in Function STATE1, opps_calc.F) by a call
2439        to S/R FIND_RHO_SCALAR
2440      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
2441        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
2442        affects output (vermix.ggl90) at truncation level.
2443    o testreport:
2444      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
2445        (nSx,nSy) for the number of threads (from eedata.mth)
2446    o model/src:
2447      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
2448        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
2449    o verification/tutorial_tracer_adjsens/
2450      - compile with ALLOW_CG2D_NSA
2451      - run with nonlinFreeSurf=3
2452      - update reference output_adm.txt
2453    o tools/genmake2:
2454      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
2455        refine usePROFILES switching off (only when NetCDF is not available).
2456    o verification (atmospheric set-up):
2457      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
2458    o pkg/profiles : refine profiles and files handling.
2459    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
2460    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
2461      - changes to use model/src/the_main_loop.F rather than the ecco version
2462        in ecco type adjoint runs.
2463    o model/src:
2464      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
2465      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
2466      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
2467    o model/src:
2468      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
2469        update output of test experiment bottom_ctrl_5x5.
2470    o pkg/generic_advdiff:
2471      - implement vertical bi-harmonic diffusion (for now, only for T & S and
2472        only explicitly).
2473    o verification/bottom_ctrl_5x5/
2474      update reference output (results changed quite some time ago,
2475      not sure when; but new reference results look ok in terms of grdchk)
2476    o verification/1D_ocean_ice_column/
2477      For verification purposes, the exact adjoint rather than an approx.
2478      should be used (e.g., to comare against F.D. or TLM).
2479      removed autodiff_inadmode*_ad.F routines in code_ad/
2480      Update results/ accordingly.
2481    o pkg/cal:
2482      - change cal_getdate.F so that output date is function of input time only
2483        (less ambiguous, not mixed up with input iteration number).
2484      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
2485    o pkg/diagnostics:
2486      - implement calendarDumps also for stats-diags
2487      - implement calendarDumps also for snap-shot output (negative freq)
2488      - for now, ignores calendarDumps if non-zero phase-lag.
2489    
2490    checkpoint63n (2012/06/04)
2491    o model/src:
2492      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
2493        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
2494      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
2495        similar to calc_r_star.F); update results of experiment internal_wave and
2496        tutorial_global_oce_in_p (affected @ truncation level).
2497    o pkg/shelfice:
2498      - add parameterisation of advective-diffusive flux into the ice shelf
2499        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
2500      - simply eps3/3a computation
2501    o eesupp:
2502     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
2503       between tiles, just fill-in edges assuming locally periodic subdomain) and
2504       add corresponding exchange subroutines (EXCH0);
2505     - new CG-solver version (_EX0) for disconnected-tiles special case.
2506    o model/src (CG-solvers):
2507     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
2508       (similar final residual output and max-Iter number as with standard version);
2509     - allows to store and use lowest-residual solution (standard & _SR versions);
2510     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
2511     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
2512    o eesup/src:
2513     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
2514       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
2515    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
2516    
2517    checkpoint63m (2012/04/27)
2518    o pkg/shelfice:
2519     - account for partical cells in surface level below ice-shelf for hydrostatic
2520       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
2521    o ad test experiments:
2522     - update and rename to "ad_optfile.local" local AD-optfile specific to a
2523       particular adjoint verification experiment (in verification/*/code_ad/)
2524    o pkg/seaice & pkg/exf:
2525     - Part two of ECCO-CLIVAR code merges.
2526       Completes merge of seaice area relax. code.
2527       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
2528       to be set in EXF_OPTIONS.h since this pkg controls its I/O
2529       (and avoids second CPP option in SEAICE_OPTIONS.h)
2530     - change default value of costIceStart & costIceEnd to a valid date.
2531     - add snowPrecip to HSNOW in seaice_growth
2532    o pkg/ptracers:
2533     - move ptracers summary and setup check into separated S/R ; add a check for
2534       valid PTRACERS_Iter0 value (error+stop or just warning).
2535    o pkg/cal (+ pkg/ecco):
2536     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
2537       as input; and for AD, unless both are not differentiable (e.g., k index)).
2538    o model/src:
2539     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
2540       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
2541       temporary set to usingZCoords value (to be changed to F when using shelfice).
2542     - hydrostatic pressure: implement partial cell near the surface also for
2543       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
2544       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
2545    o pkg/ctrl/ctrl_init.F:
2546     - add a formal parameter to s/r ctrl_init_rec to print
2547       xx_$(ctrl_valiable)_file for easier debugging
2548     - move call of cal_* routines into the if-block where they are really
2549       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
2550       to specify a startdate
2551    o pkg/seaice:
2552     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
2553       global_ocean.cs32x15/code versions).
2554     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
2555       verification experiment global_ocean.cs32x15.seaice and update results.
2556    o pkg/exf:
2557     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
2558       (according to useExfYearlyFields).
2559    o pkg/cal:
2560     - move calendar setting & summary (previously in cal_readparams.F) into new
2561       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
2562       length of the simulation is set (after SET_PARMS call); This is an attempt
2563       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
2564     - For safety: keep a record of pkg/cal parameter settings status
2565               to allow to STOP if one pkg/cal S/R is called too early.
2566     - add a stop in all basic pkg/cal subroutines if called before setting is done.
2567     - modify cal_getdate.F: stop when nothing was returned;
2568       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
2569       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
2570    
2571    checkpoint63l (2012/04/04)
2572    o pkg/bbl:
2573      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
2574        update global_with_exf output.yearly.txt file.
2575    o pkg/cal:
2576      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
2577      - remove 2 unsused and very short (1 line only) functions ;
2578      - remove unsused subroutines from AD-Diff list.
2579    o model/src:
2580      - start to implement clean wait to stop in initialization S/R (config_check.F,
2581         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
2582    o folowing PRINT_MESSAGE changes:
2583      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
2584    o pkg/bbl:
2585      - modification so it can work with z*
2586      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
2587      - global_with_exf/input.yearly verification; changes output.yearly.txt
2588    o eesupp/src:
2589      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
2590        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
2591      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
2592        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
2593      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
2594      - when using MPI, always set usingMPI=T ; set default accordingly and stop
2595        if not consistent.
2596      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
2597        argument is zero (in case called within single-thread section).
2598    o pkg/fizhi:
2599        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
2600        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
2601    o pkg/exch2:
2602      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
2603        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
2604      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
2605        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
2606        with bad ones coming from a not-yet-updated halo.
2607        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
2608    o pkg/frazil:
2609        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
2610        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
2611    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
2612    o verification/lab_sea
2613      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
2614      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
2615      * nTimeSteps 3 -> 4
2616      * changed reference output accordingly
2617    o pkg/ctrl:
2618      * fix ctrl_get_gen for xx_sst, xx_sss
2619    o pkg/fizhi:
2620      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
2621        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
2622      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
2623        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
2624        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
2625    o pkg/gmredi:
2626      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
2627    o pkg/fizhi:
2628      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
2629        (old)aces open64 tuv test.
2630    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
2631    o pkg/mom_vecinv:
2632      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
2633        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
2634        with non-lin free-surf).
2635    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
2636      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
2637      some compilers (gfortran 4.6.0 on MacOS)
2638    o momentum:
2639      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
2640        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
2641        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
2642    
2643    checkpoint63k (2012/03/17)
2644    o model/src:
2645       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
2646         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
2647       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
2648         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
2649    o model/src: solve_*diagonal.F
2650       - replace division with multiplication by inverse (similar to original version)
2651         update output of AD exp. global_ocean.90x40x15.
2652       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
2653         to enable the use of the vectorized & differentiable solve_tridiagonal.F
2654       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
2655         vertical advection (to get solve_tridiagonal tested in AD mode).
2656    o pkg/seaice: ECCO-CLIVAR merge:
2657      1. seaice AREA relaxation
2658         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
2659         * runtime flag: SEAICE_tauAreaObsRelax
2660      2. modified global mean cost imbalance code: CPP option
2661          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
2662    o another iteration on solve_*diagonal.F
2663       Make choices independent of AUTODIFF
2664       Default will be the adjoinable vectorized version.
2665       Alternative choices are:
2666       * non-adjoinable original version with low memory footprint:
2667         #define SOLVE_DIAGONAL_LOWMEMORY
2668       * still adjoinable but does not vectorize (k as inner-most loop):
2669         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
2670    o testreport
2671     - add option to use a home made wrapper around "make"
2672     - remove MITGCM_IEEE env. variable (no longer active)
2673    o pkg/shelfice
2674     - improve computation of friction velocity for velocity dependent
2675       exchange coefficients: include velocities into SHELFICEBoundaryLayer
2676       block to average velocities vertically
2677     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
2678    o Modify diagonal solvers, now three versions (upon request):
2679      #ifndef SOLVE_DIAGONAL_AUTODIFF
2680        1. default version (dating back a while ago)
2681      #else /* def SOLVE_DIAGONAL_AUTODIFF */
2682      # ifdef SOLVE_DIAGONAL_KINNER
2683        2. adjoinable version with k-innermost loop (G. Forget)
2684      # else
2685        3. adjoinable vectorized version of 2.
2686      # endif
2687      #endif /* SOLVE_DIAGONAL_AUTODIFF */
2688      All flags are currently set within routines, but could/should be moved to CPP-options.
2689      Array bounds for 1. are as before, for 2.,3. cover the entire domain
2690      (could be changed for 1. too).
2691    o verification/lab_sea (fwd):
2692      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
2693        use 7 categories (except hb87), new solve4temp params (except salt_plume),
2694        constant salinity (=4) or variable salinity (salt_plume) done through
2695        SItracer.
2696    o pkg/seaice:
2697      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
2698      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
2699         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
2700        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
2701        SEAICE_freeze got retired) but already better than previously with
2702        SEAICE_freeze=123456.7 deg.C;
2703      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
2704        (safer multi-threaded setting); always set SEAICEuseEVP;
2705      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
2706        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
2707        stop if multiple specifications for the same coeff; make sure default
2708        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
2709    o pkg/obcs:
2710      - allow to switch to upwind 1rst order advection scheme for the advective
2711        flux computation at the open-boundary; disabled for adjoint built.
2712    o pkg/ptracers:
2713      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
2714      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
2715      - add parameter to decide when to start a tracer; use internal flag to
2716        know which tracer to step-forward; switch this internal flag at the top
2717        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
2718        for adjoint built.
2719    o pkg/seaice:
2720      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
2721      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
2722      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
2723    o pkg/ecco:
2724      - fix writing of output file DiagnosCost_ClimSalt/Theta
2725        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
2726    o pkg/seaice:
2727      - add missing initialisation of COR_ICE array in dynsolver.F
2728      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
2729        compiled either way, and is tested in all exps (multidim was only tested
2730        in lab_sea ad before).
2731      - cosmetic change to prepare for future addition of ITD. no change to results.
2732        no defaults change.
2733      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
2734      - by lack of adequate verification experiments, I further used custom versions
2735        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
2736        should be correct.
2737      - avoid recomputations in ad.
2738    o array initialisation in adjoint mode:
2739      1) pkg/mom_common/mom_calc_ke.F:
2740        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
2741        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
2742        part this initialisation is gone, resulting in Floating Point Exception
2743        (caught by open64 compiler with debug option).
2744      2) model/src/convective_weights.F
2745        set output convectCount over the full array range (instead of doing
2746        an update): this fix a similar issue when called within recomputation (adjoint)
2747        which could by-pass the initialisation (normally done in the caller S/R).
2748    o pkg/seaice:
2749      - final version of turbulent flux params, as agreed at MIT ice meet:
2750           SEAICE_mcPheePiston (default is ~ 0.000875)
2751           SEAICE_mcPheeTaper (default is 0.)
2752           SEAICE_frazilFrac (defualt is 1.)
2753           SEAICE_mcPheeStepFunc (default is false)
2754      - changes results at trunction error level
2755      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
2756    o added pkg/frazil:
2757      - see frazil_description.tex for details
2758      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
2759    o pkg/shelfice/shelfice_thermodynamics.F
2760      - fix exponents for velocity dependent exchange coefficients: change
2761        from 2/3(=0) to 0.66666666666666667
2762      - move computation of velocity dependent exchange coefficients into
2763        separate loop, so that it applies to both thermodynamics
2764      - move some divisions by constants out of loops
2765    
2766    checkpoint63j (2012/02/16)
2767    o pkg/seaice:
2768      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
2769      - SItracer:  added run time params, and allow coupling to ocn salinity.
2770    o pkg/seaice: remove (almost) all divisions by constants within loops
2771      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
2772      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
2773      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
2774      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
2775    o pkg/seaice :
2776      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
2777        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
2778      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
2779      - add permanent SItflux diag that corresponds to TFLUX but includes
2780        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
2781      - allow activation/testing of a fix for suspected missing term in
2782        ocn-ice heat budget (to be confirmed). To test this, you want to
2783        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
2784        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
2785      - no change in results, fwd or ad.
2786    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
2787      - switch to variable freezing point.
2788           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
2789      - bug fix : the sublimation term that was missing is now activated.
2790           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
2791      - bug fix : flooding sign term for SIsal0.NE.0.
2792           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
2793    o pkg/seaice:
2794      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
2795        is now the default, and the old default constant freezing point is recovered
2796        with SEAICE_tempFrz0    = -1.96,
2797             SEAICE_dTempFrz_dS = 0.,
2798      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
2799      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
2800      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
2801        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
2802      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
2803        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
2804      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
2805        seaice_growth r149 for legacy branch (no results change).
2806      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
2807        from I. Fenty).
2808      - results did not change except for global_ocean.cs32x15, mostly due to the
2809        switch to variable freezing point (see above item for detail).
2810    o pkg/thsice:
2811      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
2812        seawater freezing in thsice_calc_thickn (not used).
2813    o pkg/seaice: turbulent flux term specification via run time params.
2814      - replace CPP switches with run time switches to facilitate testing
2815      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
2816                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
2817      - added runtime parameter : SEAICEturbFluxFormula
2818      - move Mcphee constants to SEAICE_PARAMS.h
2819      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
2820                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
2821                 remove seaice_summary call (moved to seaice_init_fixed)
2822      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
2823        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
2824      - seaice_summary.F : add missing report of read turbulent flux term set up
2825                           and SITRACER.
2826      - seaice_check.F : check range; inform and stop if retired CPPs are used
2827                         (incl. SEAICE_AGE).
2828      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
2829             CPP switch, same computation as before for the different options.
2830      - change results at the truncation level.
2831    o pkg/seaice:
2832      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
2833        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
2834        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
2835      - update verification/*/input*/data.seaice:
2836        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
2837        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
2838        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
2839        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
2840    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
2841      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
2842        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
2843        difference in results only due to machine truncation.
2844      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
2845        MaykutPolySatVap; keep MIN_LWDOWN.
2846      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
2847      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
2848        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
2849    o pkg/salt_plume:
2850      - isolate saltPlumeFlux array exch into a specific S/R called from
2851        do_oceanic_phys.F
2852      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
2853    o verification:
2854      - move untested set-up to MITgcm_contrib/verification_other.
2855    o pkg/seaice:
2856      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
2857    o pkg/seaice:
2858      - seaice_solve4temp.F (keeping results unchanged):
2859        * add 2 future run-time params to select which saturation vapor pressure
2860          formula is used and how post-iteration fluxes are set.
2861          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
2862        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
2863          the linearized expression to stay consistent with tsurf finding.
2864      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
2865        can be < 0.
2866    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
2867      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
2868        conductive heat flux F_c , and add it explicitly when updating tsurf as
2869        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
2870        so that now F_ia has a consistent meaning through the entire routine.
2871        This causes differences at truncation level: update output of fwd exp.
2872        global_ocean.cs32x15.seaice.
2873    o pkg/seaice:
2874      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
2875        of arrays, sign/direction of fluxes; no effect on results.
2876      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
2877        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
2878        note: this should have been done before changing celsius2K default.
2879      - to keep results unchanged, add back old value of celsius2K in verification
2880        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
2881      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
2882        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
2883        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
2884        freezing temp is consistent with value in seaice_growth.F ; this causes
2885        differences at machine truncation level: update lab_sea AD output (3/4).
2886    o pkg/seaice:
2887      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
2888        and climsst/sss even when using seaice (to prevent calculation that might
2889        use SST on land); does not affect any verification exp.
2890      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
2891        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
2892    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
2893      over land (non-legacy code)
2894    o vectorize salt_plume package:
2895      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
2896      - this code computes plumebk everywhere (also over land), thus requires
2897        code to avoid divisions by zero and catch the case of kLev=Nr.
2898      - efficiency of salt_plume_frac is still sub-optimal
2899    o tools (genmake2):
2900      - fix makefile NAME specification (option: -makefile NAME) by adding
2901        "-f $MAKEFILE" in few places where it was missing including makedepend
2902        command (contribution from Paul).
2903    
2904    checkpoint63i (2012/01/24)
2905    o model/src:
2906      - add factorized versions of some EOS code to find_rho.F,
2907        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
2908    o model/src:
2909      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
2910      - change default celsius2K from 273.16 to 273.15
2911      - to keep results unchanged, add back old value of celsius2K in verification
2912        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
2913         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
2914    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
2915      to make TAF generate vectorizable code
2916    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
2917       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
2918       have flags that do this more efficiently.
2919    o pkg/diagnostics/diagstats_calc.F
2920      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
2921    o pkg/obcs (with exch2):
2922      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
2923        and remove code (in obcs_readparms.F) which was based on EXCH of indices
2924        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
2925    o pkg/exf and seaice exp:
2926      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
2927        so that switching off area & heff advection flags does not affect results.
2928      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
2929      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
2930        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
2931        results of verification experiments: 1D_ocean_ice_column(fwd),
2932        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
2933        and offline_exf_seaice (all 4).
2934    o pkg/seaice:
2935      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
2936        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
2937      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
2938        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
2939        not multi-dim advection;
2940      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
2941        SHORTWAVE_HEATING #undef.
2942    o optim: make Makefile more robust (?)
2943    o pkg/obcs:
2944      * fix treatment of obcs_read_pickup for TAF
2945    o pkg/shelfice:
2946      * add missing initialisation of num_shifwflx
2947      * new adjoint verification exp. for isomip
2948      * change Prandtl and Schmidt numbers from generic formulations
2949        (in terms of model diffus. and visc.) to separate runtime
2950        parameters, with Holland and Jenkins (1999) default values.
2951    o pkg/exf (interpolation):
2952      - extended input field (2 rows) near the N & S poles:
2953        * fill in with the symetric value (when even Nb of data in longitude)
2954        * add average value at the poles only for scalar quantities ; for vector
2955          component interpolation, skip the averaging and keep duplicated values,
2956          unless the 2 components have same location (uvInterp=T) in which case
2957          interpolate the 2 components together using S/R EXF_INTERP_UV.
2958      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
2959        together: this allows to account properly for local orientation when
2960        averaging at N & S pole.
2961      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
2962        exf-interpolation near N & S poles. Undef by default.
2963      - add debug check/print on 1rst iter if debugLevel >=2.
2964    o pkg/exf:
2965      - change masking flags definition (no longer "parameter"), put them in
2966        common block and set them in S/R EXF_INIT_FIXED.
2967      - change recognized masking flag from s,u,v to c,w,s since the mask
2968        to use (maskC,W,S) depends on position on model grid and has little to
2969        do with scalar/vector difference; fix masking if using P-coordinates.
2970      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
2971        and update results of exp. global_with_exf (x2).
2972      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
2973    o pkg/obcs
2974      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
2975    o pkg/exf (interpolation):
2976      - assume periodicity in X only if input field cover full longitude range.
2977      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
2978        and should vectorise).
2979      - fix input lat of the 2 added row (in case we provide N.pole data).
2980    
2981    checkpoint63h (2011/12/30)
2982    o pkg/seaice:
2983      - change declaration of UVM from _RL to _RS in order to get B-grid
2984        uIce,vIce monitor when _RS = real*4
2985    o pkg/offline:
2986      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
2987      - compute vertical velocity if not read from file (switch on exactConserv
2988        & staggerTimeStep);
2989      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
2990    o verification:
2991      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
2992        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
2993        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
2994      - update output of exp. global_ocean.cs32x15.viscA4 after changing
2995        grid-file angles (used here for coriolis-3d);
2996      - remove (or gzip) few files not needed to run fizhi-cs experiments.
2997    o pkg/exf (vector interpolation):
2998      - rotate vector component toward local grid-axis orientation using grid-angles
2999        (stored in GRID.h) instead of locally computed rotation angle; keep old code
3000        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
3001    o pkg/seaice:
3002      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
3003        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
3004    o pkg/PKG_OPTIONS.h files:
3005      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
3006        outside of the #ifdef ALLOW_THISPKG / #endif block.
3007      - update verification/*/code/PKG_OPTIONS.h files.
3008    o add a verification experiment (offline_exf_seaice/input.seaice) that test
3009      the B-grid LSOR solver
3010    o pkg/seaice: sort out emissivity and long wave radiation step 2:
3011      - add emissivity for snow and ice as new run-time parameters
3012        (unfortunately) that default to the corresponding exf values; this
3013        changes results in most verification experiments so that for backward
3014        compatibility these parameter have to be set explicitly to inconsistent
3015        values (ugly);
3016      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
3017        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
3018        until we agree how to handle this bug properly
3019    o pkg/exf (interpolation):
3020      - add a set of run-time param ({inputfield}_interpMethod), one for
3021        each interpolated input field, to select the interpolation method
3022        with a value of zero switching off the interpolation;
3023      - print interpolation parameters to standard output;
3024      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
3025        (to use instead runoff_interpMethod=0 in data.exf).
3026      - simplify default setting of interpolation parameters (for all fields,
3027        set position to match model grid cell-center position, leading to trivial
3028        interpolation in case of regular Lat-Lon grid) and fix for the case of
3029        non-uniform delY.
3030    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
3031       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
3032       this factor is absolutely required, because the lw exitance (= out-going
3033       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
3034       where the reflectivity rho = 1-emissivity for conservation reasons. Once
3035       this is established, we can remove the CPP-Flag (if we want to).
3036    o pkg/seaice:
3037      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
3038        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
3039      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
3040        what the name implies (and not emissivity*BoltzmannConstant), this means
3041        the old default value of 5.5e-8 now means
3042        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
3043        S/R exf_readparms
3044      - FV-discretization of the B-grid LSOR solver, turn on with
3045        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
3046        of the calling routine dynsolver, so that B and C-grid code look a
3047        little more alike.
3048      - fix index bugs in ostres.F (B-grid code)
3049    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
3050    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
3051      default for SEAICE_emissivity, if useEXF; requires setting a wrong
3052      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
3053      backward compatiblity
3054    o model/src: use sigmaR in calc_ivdc
3055    
3056    checkpoint63g (2011/12/16)
3057    o pkg/seaice/seaice_growth.F:
3058      fix heat conservation of the coupled ocean-seaice system.
3059      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
3060      solid vs liquid water treatment is resolved via QNET.
3061    o pkg/seaice/seaice_growth.F:
3062      add missing term for sublimation in saltFlux, which was breaking conservation.
3063    o pkg/seaice/seaice_model.F:
3064      Remove this patholigical case treatment in evolution branch,
3065      where it is un-necessary and breaks conservation.
3066      Update global_ocean.cs32x15/results accordingly for
3067      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
3068    o model/src:
3069      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
3070      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
3071    o pkg/obcs:
3072      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
3073      tendency for temperature and salinity that is then applied to update
3074      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
3075      horizontal advection and diffusion contributions on the boundary (in
3076      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
3077      removing the mask in S/R timestep_tracer. The advantage of this approach is
3078      that the updated tracer values include contributions from the surface
3079      forcing and vertical diffusion.
3080      This modification changes exp4.stevens because of vertical diffusion.
3081    o model/src:
3082      change non-curvilinear grid setting to also work with exch2 + blank tiles:
3083      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
3084        face dimensions.
3085      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
3086        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
3087        and INI_SPHERICAL_POLAR_GRID.
3088      change test-experiment global_ocean.90x40x15:
3089      - split the domain in many more tiles (9x4 tiles of 10x10 each);
3090      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
3091      - update results of both test (std & dwnslp).
3092    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
3093       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
3094    o model/src:
3095      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
3096        and fix initialisation when using sigma-coords.
3097    o model/src:
3098     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
3099       to their current value at the beginning of forward_step.F": add a new run-time
3100       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
3101     - set doResetHFactors=T in the following test exp:
3102        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
3103        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
3104        and tutorial_global_oce_in_p (nonLinFS in p)
3105    o pkg/ecco
3106      - added IES cost term
3107    o verification/advect_xz
3108      - scale down the depth by 1/100 (from 200 km to just 2.km)
3109      - add secondary test using divergent flow, r-star and implicit vertical advection.
3110      - add note (check_conserve_TS.txt) and matlab script to check global
3111        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
3112    o pkg/rbcs:
3113      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
3114    o pkg/obcs (Stevens BCs):
3115      - fix various problems in the phase speed computations of the Stevens
3116        boundary conditions:
3117        - sign error for western and southern boundaries,
3118        - time tendencies were underestimated by factor of dTracerLev and some just
3119          zero (for multidim advection schemes) -> now estimate time tendencies
3120          from difference between previous (n) time level and the one before (n-1);
3121          this requires storing a field per tracer per boundary, also in the pickup
3122          files.
3123        - replace deltaTmom in cflMer/Zon computation with dTracerLev
3124        - set default phase velocity to cflMer/Zon
3125      - update verification experiment exp4.stevens
3126    o pkg/generic_advdiff (implicit_r):
3127      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
3128        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
3129      - fix implicit vertical diffusion or advection with NonLin FreeSurf
3130        (was using current recip_hFacC instead of future recip_hFacC): set future
3131        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
3132        solver S/R ;
3133      - fill diagnostics of vertical advective fluxes (computed from tendency)
3134        when using implicit vert. advection;
3135      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
3136         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
3137         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
3138         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
3139    o pkg/diagnostics:
3140      - add diags for T & S tendency which goes through Adams-Bashforth.
3141    
3142    checkpoint63f (2011/11/30)
3143    o pkg/obcs/obcs_calc_stevens.F:
3144      - join some loops to reduce number of if-statements
3145      - fix a bug in code for northern and southern boundaries.
3146    o pkg/seaice/seaice_init_varia.F
3147      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
3148        caused zero ice-velocities for the B-grid code
3149    o pkg/seaice/seaice_init_fixed.F
3150      - fix a bug in the initialisation of the second metric terms
3151        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
3152      - this affects all seaice configurations with useCurviLinearGrid = .true.
3153        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
3154        = .true. (default)
3155      - the only verification experiment affected is global_ocean.cs32x15:
3156        icedyn, seaice, and seaice_dynmix (AD)
3157    o pkg/thsice/thsice_diagnostics_state.F
3158      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
3159        not contain garbage that can lead to surprises in diagstats_calc.F
3160    o model/src:
3161      - move bi,bj loops inside INTEGR_CONTINUITY ;
3162      - call INTEGR_CONTINUITY directly from forward_step.F
3163        (previously called from momentum_correction_step.F)
3164      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
3165        forward_step.F and pkg/ecco/the_main_loop.F
3166    o model/src/do_oceanic_phys.F:
3167      - reset addMass to zero only if useICEFRONT ;
3168      - separated k-loop for rhoInSitu calculation ;
3169      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
3170        and at constant T,S (= WdRHOdP);
3171      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
3172        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
3173        transport of locally-referenced potential density);
3174        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
3175    o gluemnc:
3176      - replace ncrcat with ncks when adding variables to *.glob.nc
3177      - change the way variables without record dimensions are handled so that
3178        files that have variables with and without record variables can be glued:
3179        add a record dimension with a new unique name to be able to differentiate
3180        between variable with and without a-prior record dimensions. Remove
3181        this record dimension before adding the variable to the *.glob.nc file.
3182        This procedure automatically works also for grid.*.nc files that do not
3183        have any record dimension.
3184    o verification/cpl_aim+ocn:
3185      - generate new reference output on baudelaire (gfortran, mpich2) (previously
3186        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
3187    o pkg/obcs/obcs_calc_stevens.F:
3188      - add code for northern and southern boundaries.
3189      - reorder some loops to save some operations and so that drFBar can be scalar
3190    o model/src:
3191      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
3192        truncation) and add diagnostics for Adams-Bashforth tendency increment.
3193      - update test-exp. AD output:
3194        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
3195      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
3196        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
3197        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
3198        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
3199        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
3200        tutorial_plume_on_slope.
3201    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
3202      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
3203      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
3204      does not even come with an F77 compiler anymore, this should not be
3205      a limitation
3206    
3207    checkpoint63e (2011/11/06)
3208    o pkg/seaice adjoint of LSR:
3209      - substantially rework STORE dirs.
3210      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
3211        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
3212        and only perform SOLV_MAX_FIXED adjoint iters.
3213        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
3214        always goes to same record, meaning that the last forward field will be
3215        the one used in the adjoint - an approximation.
3216      - now produces non-zero LSR-related gradients, and acceptable gradients for
3217        An's zonal (x-z) test case (to be checked in)
3218      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
3219        (but these are screwed up by the thermodynamics in the first place);
3220        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
3221        output_adm.txt also reflects changes to seaice_lsr
3222      - global_ocean.cs32x15:
3223        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
3224          (output_adm.seaice.txt was updated)
3225        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
3226          (output_adm.seaice_dynmix.txt)
3227    o test-exp. exp4+stevens:
3228      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
3229    o pkg/seaice (lsr solver):
3230      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
3231        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
3232      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
3233      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
3234        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
3235      - compute (with new S/R) and print initial (+ free-driff sol. if available)
3236        and final residual of linearised system.
3237    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
3238      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
3239    o pkg/obcs: Stevens BCs (still only for east and west)
3240      - fix Stevens BCs by using intermediate velocities of previous
3241        time step as "baroclinic" contribution rather velocity of one grid cell
3242        inside the boundaries; more consistent but makes the entire treatment
3243        more complicated, requires new pickup files and two new S/Rs:
3244        obcs_copy_uv_n and obcs_save_uv_n
3245        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
3246        (undefined by default)
3247      - silently move computation of some grid factors into separate loops to
3248        save some recomputations
3249      - add a hack for non-linear free surface
3250      - add a verification experiment to exp4 that tests this code
3251    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
3252    
3253    checkpoint63d (2011/10/25)
3254    o pkg/obcs + seaice-dynamics:
3255      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
3256        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
3257        values (consistent with an implicit method).
3258      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
3259        return to older implementation (same results as before); note that none of
3260        the "experimental" OBCS_SEAICE options are implemented in the new version.
3261      - switch test exp. seaice_obcs to use new version (update output).
3262    o pkg/seaice:
3263      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
3264      - add parenthesis in Water-Ice drag calculations (evp & lsr);
3265      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
3266        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
3267      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
3268        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
3269    o pkg/layers:
3270      - Include potential density as new coordinate (Thanks to David Munday)
3271    o pkg/dic:
3272      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
3273        carbonate computation/output to CALC_PCO2_APPROX
3274    o pkg/generic_advdiff
3275      - make TAF generate code that vectorizes:
3276        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
3277    o model/src:
3278      - improve vectorization also for adjoint code of
3279        solve_tridiagonal and solve_pentadiagonal. As this requires up to
3280        5 new 3D-fields, this code is only turned on for the combination of
3281        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
3282        for singular matrix check (only for TARGET_NEC_SX).
3283      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
3284        ALLOW_AUTODIFF. This flag now needs to be set outside of
3285        solve_tri/pentadiagonal.F
3286    o pkg/exf:
3287      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
3288        optional namelist EXF_NML_OBCS).
3289      - add many debug-print (to trace down where pkg/cal error msg comes from)
3290    o pkg/mom_vecinv/mom_vi_hdissip.F
3291      - rearrange loops so that vectorization is improved and in particular
3292        the adjoint routine vectorizes. The code is a little longer now, but I
3293        think easier to read.
3294        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
3295    o pkg/seaice:
3296      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
3297    o pkg/exch2:
3298      - alternative code (without tile x tile matrix) for cumulated (global) sum;
3299        used as default; keep using matrix version in adjustment.cs-32x32x1.
3300    o tools/build_options:
3301      - after merging some MPI and/or multi-threads specific optfiles so that
3302        the modified default optfile support both built (using genmake2 -mpi
3303        for the MPI built, using genmake2 -omp for OpenMP built),
3304        move now obsolete optfiles to tools/build_options/unsupported/
3305       (add copy of email sent to support list in doc/optfiles_changes.txt)
3306    
3307    checkpoint63c (2011/09/28)
3308    o pkg/ebm:
3309      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
3310        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
3311    o pkg/seaice (SItracer pickup)
3312    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
3313      To be done:
3314      - thorough testing of missing fields in S/R seaice_read_pickup
3315      - thorough matching between generic tracers and specific fields used
3316        (e.g. volume-weighted age, area-weighted age, salinity, ...)
3317    o pkg/grdchk:
3318      - all procs calculate and print finite-difference gradient (for testreport)
3319      - change description output used by testreport;
3320      - AD testing: also compare and report Finite-difference gradient;
3321        => update all output_adm*.txt
3322    o test exp. global_ocean_ebm:
3323      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
3324        and turn on exactConserve; update (fwd) output.
3325    o pkg/seaice (LSR):
3326      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
3327      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
3328        * identical results with non-CS topology (but save up to half of EXCH calls)
3329        * no much changes in cs-32 verification tests since no ice at face edges
3330         (differences due to convergence criteria, since nb of iterations changed)
3331        * expect some differences on lat-lon-cap grid.
3332        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
3333    o pkg/exch2:
3334      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
3335        many tiles); until alternative coding is added, just add a stop.
3336    o pkg/kpp:
3337      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
3338        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
3339    o optfiles:
3340      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
3341        into corresponding standard one, which now support different build:
3342        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
3343      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
3344    o pkg/obcs (seaice):
3345      - add missing EXCH for uIce,vIce after applying OBCS;
3346      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
3347        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
3348        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
3349      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
3350      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
3351        and eedata.mth for MPI and mutlti-threaded testing.
3352    o pkg/flt:
3353      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
3354      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
3355      - fix pickup and trajectories + profiles output with multi-threads;
3356      - add parameter to select group of fields to write along trajectory and
3357        profile (default unchanged);
3358      - only call PORT_RAND* function when flt_noise <> 0;
3359      - add multi-threaded test for verification exp. flt_example.
3360    o eesupp/src:
3361      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
3362      - USE_OMP_THREADING: check that number of threads (from eedata) matches
3363        actual number (from env.var. setting).
3364    o pkg/ebm:
3365      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
3366      - add multi-threaded test for verification exp. global_ocean_ebm
3367    
3368    checkpoint63b (2011/08/29)
3369    o pkg/ebm:
3370      - fix sign of runoff;
3371      - update directly forcing fields (Qnet,EmPmR) to use standard
3372        external_forcing_surf.F (remove ebm_forcing_surf.F);
3373      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
3374      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
3375        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
3376      - update global_ocean_ebm parameters file data and update output (fwd+ad).
3377    o verification/matrix_example:
3378      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
3379        MPI and mutlti-threaded testing.
3380    o pkg/matrix:
3381      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
3382      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
3383      - fix for multi-threaded (remove DATA statement);
3384      - use standard DIFFERENT_MULTIPLE function;
3385      - add MATRIX_OPTIONS.h
3386    o verification/matrix_example:
3387       To allow to split the domain in several tiles, change the domain size
3388        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
3389        Western side) of land points.
3390    o (*_)write_pickup:
3391      - fix few bugs in mypackage_read/write_pickup.F
3392      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
3393        array of length 1 (was caught by compiler syntax-check).
3394    o pkg/diagnostics (velocity potential solver):
3395      - fix initialisation of main diagonal matrix (for overlap values)
3396    o tools/build_options:
3397      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
3398        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
3399      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
3400        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
3401        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
3402        and use "-devel" testreport option for standard testing on baudelaire.
3403    o pkg/grdchk:
3404      - Assume that all gradient-check position are within the same tile
3405        corresponding to global indices (iGloTile,jGloTile) and that
3406        positions (i,j indices or nbeg) are local to this tile;
3407      - set tile local-indices and proc. number according to tile global-indices;
3408      - remove grdchkwhichproc from namelist (retired param);
3409      - send adjoint gradient to all procs so that all procs print it to STDOUT;
3410      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
3411    o adding package bbl (Bottom Boundary Layer)
3412      description in MITgcm/pkg/bbl/bbl_description.tex
3413      example/test experiment in MITgcm_contrib/bbl
3414    o adjoint verifications
3415      - changed 5 experiments to multi-tiles
3416        * global_ocean.90x40x15
3417        * obcs_ctrl
3418        * offline_exf_seaice
3419        * tutorial_dic_adjoffline
3420        * tutorial_tracer_adjsens
3421        changed reference output for those that crossed tile boundaries
3422        (changed choices of gradient check positions)
3423      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
3424      - temporary bug fix in grdchk_loc.F for obcs
3425    o genmake2 & testreport
3426      - add target "obj" (just for OBJFILES files) to Makefile;
3427      - add option to specify FEXTRAFLAGS on command line.
3428    o pkg/mypackage:
3429      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
3430    
3431    checkpoint63a (2011/08/02)
3432    o pkg/diagnostics (velocity potential):
3433      - fix velocity-potential calculation when using OBCS: balance net inflow
3434        at each level (new S/R OBCS_DIAG_BALANCE).
3435      - fix some of the problems with OBCS in stream-function calculation.
3436    o pkg/exf/exf_readparms.F
3437      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
3438        EXF_NML_OBCS) more consistent, so that you need not have these lists
3439        in data.exf when they are not used.
3440    o optim/optim_readdata.F:
3441      - add some output about obcs variables that might help debugging
3442      - add a check about nvarlength
3443    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
3444    o pkg/diagnostics (velocity potential):
3445      - fix mask for OBCS (still problems in stream-function with OBCS);
3446      - add specific parameter (default = main code CG2D params) for solver;
3447      - in case of poor convergence, use solution corresponding to lowest residual.
3448    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
3449      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
3450      and should be avoided where possible.
3451    o model/src (rStar):
3452      - include r* effect on reference-state (PhiRef) in totPhiHyd
3453        (so that it's really the potential anomaly at the cell center);
3454        affect solution only if z* with full pressure in EOS.
3455      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
3456        update output (because of z* in totPhiHyd and viscA4 changes);
3457      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
3458        @ constant r) until interpolation at constant r is implemented.
3459    o pkg/diagnostics
3460      - fix RCENTER diagnostics in case cell center is not at interface middle
3461    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
3462      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
3463      that THETA and SALT are "conservative temperature" and "absolute
3464      salinity"
3465    o pkg/ctrl
3466      - fix computation of endrec in s/r ctrl_init_rec
3467      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
3468    o pkg/seaice/seaice_growth.F
3469      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
3470        remove then obsolete STORE directives
3471      - fix STORE directives for tice and tices, so that only the
3472        appropriate part of the fields are stored (and not the entire
3473        field); update global_ocean.cs32x15.seaice AD output.
3474      - cosmetic changes: adjust CPP flags and indentation for better
3475        legibilty
3476    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
3477      Chris Wilson)
3478    o pkg/gmredi:
3479       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
3480       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
3481    
3482    checkpoint63  (2011/07/11)
3483    o pkg/exch2:
3484     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
3485     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
3486       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
3487       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
3488    o pkg/diagnostics:
3489     - deal with pairs of post-processed diags which are computed together; in
3490       particular, re-order list of diags within 1 file to save 2nd computation.
3491     - add S/R to compute velocity stream-function (called after velocity-potential
3492       calculation) from divergence free transport -> new diagnostics "PsiVEL".
3493     - add parameter to select grid-point location where PsiVEL == 0.
3494    o eesupp/src:
3495       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
3496       (specific S/R needed with exch2 topology - for now, just print an error msg)
3497  o pkg/shelfice  o pkg/shelfice
3498   - Implement friction velocity-dependent transfer coefficients following   - Implement friction velocity-dependent transfer coefficients following
3499     Holland and Jenkins, JPO, 1999     Holland and Jenkins, JPO, 1999
# Line 27  o pkg/seaice/seaice_growth.F: Line 3517  o pkg/seaice/seaice_growth.F:
3517      when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the      when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
3518      non-legacy seaice_solve4temp.      non-legacy seaice_solve4temp.
3519    - add diagnostic of the residual sublimation freshwater flux (the freshwater    - add diagnostic of the residual sublimation freshwater flux (the freshwater
3520      flux taken from the ocean if the total actual latent heat fluxes exceed      flux taken from the ocean if the total actual latent heat fluxes exceed
3521      the maximum)      the maximum)
3522    - remove the CPP switch around the *_FWbySublim unit change and move diagnostic    - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
3523     fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.     fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.

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