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revision 1.1641 by dimitri, Mon Apr 2 04:34:07 2012 UTC revision 1.2114 by jmc, Wed Jan 14 20:49:27 2015 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:
8      - move (from ini_forcing.F) initialisation of all arrays in header file
9        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
10        (since Nov 2012) with option selectAddFluid=1.
11    o pkg/shelfice:
12      - change units (+ document) of newly added field "shelfIceMassDynTendency"
13      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
14    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
15    o pkg/seaice: two new runtime parameters:
16      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
17        long overdue
18      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
19        parameterization of tensil stress for fast ice (does not do anything yet)
20    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
21        for LSR: move checking overlaps out of JFNK-if-block
22    o pkg/atm_phys:
23      - move copy of grid and dynamical fields out of atm_phys_driver.F into
24        new S/R ATM_PHYS_DYN2PHYS.
25      - fix level height for Linear Free-Surf case (to be consistent with
26        fixed-in-time pressure levels).
27    o pkg/mom_common (bottomdrag):
28      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
29        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
30        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
31    o pkg/shelfice (u/v_drag):
32      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
33      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
34        (now similar to shelfice_u_drag.F)
35      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
36        from mom_vecinv.F (similar to mom_fluxform calls).
37    o pkg/mom_common (bottomdrag):
38      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
39      - add options for alternative discretisation of velocity norm in quadratic
40        bottom drag: averaging of grid-cell-center KE to U.point and V.point
41        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
42        improves when averaging only the other component (e.g. vVel for U bottom
43        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
44      - add options (bottomVisc_pCell) to account for partial-cell in bottom
45        friction (no-slip BC) thus getting the true distance from the bottom;
46        off by default since this also reduces model stability (explicit bottom
47        friction). Changes produce different machine truncation with linear-drag
48        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
49        front_relax (bvp & mxl, 10 & 11 digits).
50    o model/src & mom pkgs:
51      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
52        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
53      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
54        just copy level Nr value to level Nr+1.
55    o doc:
56      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
57    o pkg/streamice:
58      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
59        SHELFICE.h: move array shelficemass to init_varia, initialise
60        from array shelficemassinit, which is set in init_fixed and
61        has option to be set from file; introduce array
62        shelficeMassDynTend array, set thru file in init_fixed
63      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
64        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
65        pkg/streamice
66      - shelfice_thermodynamics.F: call shelfice_step_icemass if
67        SHELFICEMassStepping = .true.
68      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
69    
70    checkpoint65h (2014/12/17)
71    o verification/global_ocean.90x40x15, global_ocean_ebm:
72      - update to generic controls.
73    o pkg/ctrl:
74      - ctrl_map_ini_genarr.F: test for igen>0
75      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
76      - move gentim2d part of ctrl_map_ini_genarr.F to
77        new separate routine : ctrl_map_ini_gentim2d.F
78      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
79        add time variable weights and cyclic controls (time mean,
80        seasonal cycle, etc) capabilities to gentim2d
81    o pkg/ecco:
82      - move reading of error, conversion to weights from
83        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
84    o global_oce_llc90, cs32:
85      - activte sbo.
86      - CTRL_SIZE.h : add maxCtrlProc.
87      - activate the new genctrl capabilities.
88      - update following reorganization of global_oce_input_fields.tar.gz  
89    o pkg/ctrl/ctrl_ad_diff.list:
90      - add missing ctrl_init_rec.f
91    o tools/OAD_support/keepOriginal:
92      - add ctrl_init_rec.F
93    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
94      - avoid recomputations of xx_gentim2d_dummy.
95    o momentum diagnostics:
96      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
97        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
98    o pkg/seaice/seaice_lsr.F:
99      - fix computation of BU/BV, make sure they are non-zero, only necessary
100        for cubed sphere exchanges and SEAICE_OLx/y>0.
101        This makes calling s/r fill_cs_corner_rl obsolete (removed).
102    o verification/global_ocean.cs32x15/input.seaice
103      - add test for strong implicit coupling and restricted addtive Schwarz
104        methods for LSR
105      - update results/output.seaice.txt
106    o verification/tutorial_global_oce_biogeo:
107      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
108        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
109        update output_adm,_oadm,_tlm.txt
110    o pkg/dic:
111      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
112      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
113        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
114    o verification/tutorial_global_oce_biogeo:
115      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
116        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
117        update output_adm,_oadm,_tlm.txt
118    o eesupp/src:
119      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
120        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
121    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
122      LSR (following Hutchings et al. 2004)
123      - introduce zetaZ as a global variable (requires adjustments in
124        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
125        in seaice_calc_viscosities.F
126      - new flag SEAICEuseStrImpCpl (default off)
127      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
128        momentum equations
129      - JFNK-solver (preconditioner) adjusted to allow using this method
130        (where it does not have any positive effect)
131    o pkg/seaice
132      - add overlap for restrictive additive Schwartz method also to LSR, but
133        turn it off by default (because it only seems to work for non-cubed
134        sphere/llc topologies)
135    o pkg/autodiff
136      - add extra exchanges in addummy_in_steppging also for mnc output
137    o pkg/seaice:
138      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
139        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
140    o pkg/obcs:
141      - add option to specify domain-connected piece Id along OB though files
142        (for now, only used to diagnose PhiVel; default =1 -> global correction)
143      - modify obcs_diag_balance.F to process each connected-part separately;
144        exclude OB where Id = 0 but keep the full divergence there (-> constant
145        Psi along this portion of OB and all inflow derived from grad(Phi))
146      - add example of OB-conect files in verification/so_box_biogeo/input.
147    o pkg/diagnostics:
148      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
149      a) use non zero matrix element across OB and solve for Phi 1 grid point
150         outside OB (i.e, where tracer OBCS are applied).
151      b) global imbalance of inFlow/outFlow across OB: instead of modifying
152         velocity across OB, spread it uniformly along the OB in the RHS.
153    
154    checkpoint65g (2014/11/19)
155    o pkg/diagnostcis:
156      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
157    o pkg/my82,pp81,kl10:
158      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
159        field diffKr as background diffusivity to set minimum diffusivity value.
160    o pkg/seaice:
161      - add new parameter SEAICEuseEVPrev (for revisited EVP by
162        Bouillon et al 2013)
163      - add SEAICE_evpAlpha/Beta to namelist
164      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
165        involve trivial re-ordering of divisions/multiplications that should not
166        have any effects, but ... they do change the results of lab_sea.hb87 so
167        that only 2 digits of agreement remain, in line with the general
168        instability/fragility of the evp-code. For now, I do not care and just
169        update the verification experiment
170    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
171      - remove xx_genarr2d_numsmooth etc
172      - use xx_genarr2d_preproc etc instead
173      - carry out smooth_correl2D at initialization stage rather than during
174        time stepping.
175      - get smoothOpNb from xx_gentim2d_preproc
176    o global_oce_cs32 :
177      - add test of generic ecco capabilities.
178    o pkg/exf/exf_getsurfacefluxes.F :
179      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
180    o pkg/ctrl,ecco :
181      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
182        is defined.
183    o pkg/seaice: add diagnostics for Delta (deformation parameter)
184    o model/src:
185      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
186        diffusivity (background) is specified but ignored.
187    o verification:
188      - in testreport, convert hostname to lower case for default output dir name
189    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
190    o pkg/dic: add modifications from Hajoon:
191      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
192      - light attenuation: add self-shading effect by climatological Chlorophyll
193        (read from file).
194    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
195        compiles when SEAICE_ALLOW_DYNAMICS is undefined
196    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
197        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
198        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
199        approach where CPP_OPTIONS.h includes an omnipotent
200        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
201    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
202        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
203    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
204        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
205        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
206    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
207      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
208      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
209      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
210      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
211    o pkg/ctrl,ecco,exf :
212      - remove variables associated with NON-generic costs,
213        unless ECCO_CTRL_DEPRECATED is defined.
214      - remove NON-generic NON-obcs controls,
215        unless ECCO_CTRL_DEPRECATED is defined.
216    o pkg/ctrl : added ctrl_local_params.h
217    o pkg/ecco : added ecco_local_params.h
218    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
219        experiments, which will progressively be removed once the
220        experiments are revised to use only generic controls/costs.
221    
222    checkpoint65f (2014/10/13)
223    o pkg/ctrl, ecco, seaice : minor changes in headers
224    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
225        cost function and control capabilities added since checkpoint65c.
226    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
227    o pkg/ecco: increase modularity and improve logic
228      - ecco_toolbox.F (new) : basic operations that are often used,
229        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
230        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
231      - cost_gencal.F (new) : determine filnames and records.
232      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
233      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
234        and exploit the above functions leading to more compact code.
235      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
236      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
237        using_ers, using_gfo, using_mdt is now only defined within gencost)
238    o pkg/ecco: extend generic cost capabilities
239      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
240        capabilities via gencost_preproc (+ _c,_i,_r related params),
241        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
242        gencost_outputlevel arguments to cost_generic
243      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
244        and active_read, making room for gencost_preproc to take effect.
245        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
246      - pkg/ecco/cost_generic.F :
247        compute and store misfit maks*(model-data) in localdif that is
248        then used in cost and for output, output misfit if outlev.GT.0
249      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
250        rather gencost_barfile for deciding whether to write barfile
251      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
252      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
253        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
254      - pkg/ecco/ecco_summary.F : report gencost variables
255      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
256    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
257    o pkg/ecco: internal re-organization
258      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
259        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
260        mv relevant variables definition from ecco_cost.h to ecco.h,
261        make sure gencost routines only include ecco.h)
262      - throughout : add missing CCP switches, rm unused variables,
263        and rm un-necessary CPP switches
264      - throughout gencost routines : replace modelstartdate with
265        gencost_startdate when needed
266      - cost_bp_read.F : use arguments, instead of common blocs
267        so that it can be used also by (new) cost_gencost_bpv4.F
268      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
269      - ecco_phys.F : compute etanFull
270      - ecco_readparms.F : rename using_topex as using_tpj, add
271        bpv4-grace to gencost list, initialize added parameters
272      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
273    
274    checkpoint65e (2014/09/28)
275    o pkg/obcs:
276      - replaced the just-added CPP options with run-time variables
277        (see pkg/obcs/OBCS_PARAMS.h for details)
278    o pkg/obcs:
279      - add additional CPP options for sponge boundary layers
280        (see pkg/obcs/OBCS_OPTIONS.h for details)
281    o pkg/atm_phys:
282      - implement simple (obliquity only, assuming circular planet orbit)
283        seasonal cycle for incoming insolation ; used when run-time parameter
284        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
285    o pkg/exf, pkg/ecco, pkg/ctrl:
286      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
287      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
288      - implement gentim2d for xx_tauu, xx_tauv
289    o pkg/ctrl, pkg/ecco :
290      - fix and complement the generic controls implementation
291    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
292        pkg/shelfice/shelfice_thermodynamics.F,
293        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
294        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
295      - add weight in CTRL_GET_GEN calls
296    o pkg/ctrl :
297      - ctrl_get_gen.F : add weight as input parameter, and apply
298        it directly rather than using smooth_correl2Dw (to be retired).
299      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
300    o pkg/ctrl :
301      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
302        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
303      - re-activate ctrl_summary (call in ctrl_init.F)
304    o pkg/ctrl/ctrl_cost_gen.F :
305      - fix CCP brackets, remove un-necessary myiter, mytime
306    o pkg/ecco, pkg/ctrl :
307      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
308      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
309      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
310      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
311    
312    checkpoint65d (2014/09/15)
313    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
314      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
315        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
316    o pkg/ctrl/ctrl_map_ini_genarr.F :
317      - remove compilation failure
318      - replace hard coded example
319      - use ctrl_map_ini_gen2D, 3D
320    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
321      - on/off switch based upon xx_genarr2d_weight,3d
322    o src/packages_init_variables.F :
323      - regroup pkg/estimation calls
324      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
325        (moved to ctrl_init_variables)
326    o cost/cost_init_varia.F :
327      - remove ecco_cost_init_varia
328        (moved to ecco_init_varia)
329    o ctrl/ctrl_init_variables.F :
330      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
331      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
332    o ctrl/ctrl_map_ini.F :
333      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
334        (moved to ctrl_init_variables)
335    o ctrl/ctrl_map_ini_ecco.F :
336      - remove ECCO_PHYS (mv to ecco_init_varia)
337      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
338    o ecco/ecco_ad_diff.list :
339      - add ecco_init_varia.f
340    o ecco/ecco_init_varia.F
341      - new routine
342    o pkg/streamice:
343      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
344        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
345      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
346    o pkg/generic_advdiff:
347      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
348    o pkg/exf:
349      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
350         xxg_precip capability
351      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
352    o pkg/ctrl:
353      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
354    o model/src/load_fields_driver.F :
355      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
356        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
357    o OpenAD verification experiments:
358      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
359        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
360        for now, only in pkgs used in OpenAD verification experiments.
361      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
362        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
363        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
364        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
365    o OpenAD verification tests:
366      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
367      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
368        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
369      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
370        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
371    o model/src & generic_advdiff:
372      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
373        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
374        dynamics requires valid tracer forcing only over tile interior but, for
375        some diagnostics, may need to extend it over 1 point in tile halo region.
376      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
377        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
378        setting in temp/salt/ptracer_integrate.F
379    o pkg/dic:
380      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
381        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
382        in gchem_forcing_sep.F
383    o pkg/autodiff & obcs:
384      - add storage of current OB values for U & V (was already done for T & S).
385    
386    checkpoint65c (2014/08/30)
387    o pkg/dic:
388      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
389        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
390        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
391    o verification:
392      - new experiment testing OBCS and DIC pkgs, using params & output from
393        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
394        passage: take OBCS from the last year of a 2 yrs simulation and initial
395        conditions from t=1.yr while keeping the same forcing.
396    o model/src:
397      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
398        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
399    o pkg/diagnostics (Stats-Diags):
400      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
401        a) refine region where stats are computed, excluding where arrhFac=0 ;
402        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
403        c) extend regional stats over the region edges (for U or V pt location).
404    o pkg/gchem:
405      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
406        pkg/dic is currently changing/updating ptracers values beyond the OB).
407    o verification (hs94):
408      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
409        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
410        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
411        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
412    o pkg/ptracers:
413      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
414        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
415      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
416        with AB-2 code (so that it get tested).
417    o model/src:
418      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
419        with AB-2 code (previously only available with AB-3 code).
420        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
421        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
422        there, by calling CYCLE_AB_TRACER).
423    o pkg/generic_advdiff:
424      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
425        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
426        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
427        S/R temp/salt/ptracers_integrate.F
428    o model/src & pkg/ptracers:
429      - remove common block variables gT,gS (in DYNVARS.h), except when
430         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
431      - remove common block variable gPtr.
432    o model/src & pkgs:
433      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
434         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
435         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
436         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
437      + change accordingly all calling S/R.
438      - use local temperature/salinity/ptracer tendency array (without bi,bj)
439        in S/R temp/salt/ptracers_integrate.F
440    o pkg/seaice:
441      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
442        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
443      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
444        in seaice_lsr
445      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
446        in s/r seaice_lsr_calc_coeffs
447    o pkg/mdsio:
448      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
449        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
450        too long (e.g., > MAX_LEN_FNAM/2 )
451    
452    checkpoint65b (2014/08/12)
453    o pkg/matrix:
454      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
455    o model/src:
456      - fix initialisation of geothermalFile; compile geothermal-flux code in
457        natl_box verification experiment.
458    o model/src & pkg/down_slope:
459      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
460      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
461        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
462        results at machine truncation level: update output of experiments
463        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
464    o pkg/diagnostics (Stats-Diags):
465      - do not cumulate the full volume when DIAGNOSTICS_FILL is
466        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
467        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
468        times (but Min,Max and StD are still wrong).
469    o model/src:
470      - add geothermal flux forcing: read in ini_forcing.F as time-constant
471        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
472    o model/src:
473      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
474        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
475        arrays are already updated while adjustments (filters, conv.adjustment) are
476        still applied later, in S/R TRACERS_CORRECTION_STEP.
477    o model/src:
478      - store in common bloc array "rhoInSitu" the virtual potential temperature
479        anomaly that is used to compute geopotential: this make the atmos code
480        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
481    o pkg/seaice/seaice_lsr.F
482      - rename integer variable ilcall to ipass (that's what it is called
483        in the residual diagnostics
484      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
485        default) for improved non-linear convergence of the first few steps
486      - adjust a few comments and add new ones to explain some of the store
487        directives
488    o pkg/generic_advdiff (& ptracers):
489      - re-work the code to check for valid advection scheme and for minimum
490        size of overlap (now stored in local common bloc in gad_advscheme.F)
491    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
492      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
493      - add an auxilliary variable "bet" and fix store directives and keys in
494        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
495        less exact gradients in my tests); but there are still
496        recomputation warning (although gradients are sort of OK), when
497        SEAICE_LSR_VECTORIZE is not defined, so this flag and
498        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
499      - update verification experiments lab_sea.
500      - change some comments in S/R seaice_calc_viscosities
501    o model/src:
502      - if staggerTimeStep=T, always apply exchange to velocity field in
503        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
504        (independent of using multi-dim advection or not); no effect on FWD run
505        but affects AD results (at machine truncation level): update output of
506        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
507        and isomip (oad: 12.d).
508    o pkg/generic_advdiff:
509      - stop if doAB_onGtGs is set to FALSE but ignored
510      - refine warning related to stability of tracer time-stepping
511        regarding internal wave dynamics.
512      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
513        on staggerTimeStep & implicitIntGravWave (will now get a warning
514        if potentially unstable).
515    o pkg/kl10:
516      - add new pkg "kl10" for mixing due to internal wave breaking, from
517        http://www.sciencedirect.com/science/article/pii/S1463500310000144
518        (contribution from Jody Klymak), tested in verification experiment
519        verification/internal_wave/input.kl10/
520    o isomip experiment:
521      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
522        (input.htd) and update the output.
523    o cd_code experiments:
524      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
525        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
526        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
527        update the corresponding output.
528    o pkg/seaice:
529      - reduce the number of include files and store directives in
530        S/R seaice_lsr_tridiagu/v
531      - change the order of loops in one case in S/R seaice_lsr_tridiagv
532        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
533        get rid off one store directive (a TAF bug?)
534      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
535        S/R seaice_lsr_tridiagv to change the loop range for consistency
536      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
537      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
538        S/R seaice_lsr_tridiagu/v (requires update of
539        offline_exf_seaice/input.dyn_jfnk)
540    
541    checkpoint65a (2014/07/27)
542    o model/src:
543      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
544        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
545        (topo in p-coords, ice-shelf in z-coords); update output of experiments
546        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
547    o model/src:
548      - collect momentum forcing tendency into local 2-D array (passed as argument
549        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
550        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
551        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
552      - collect T & S forcing tendency into local 2-D array (passed as argument to
553        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
554        affects results at machine truncation level (e.g., ocean: if using
555        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
556        correction due to vertical advection).
557      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
558        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
559        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
560        obcs_ctrl (ad & fwd grd @ 12 & 7).
561    o pkg/ptracers & diagnostics:
562      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
563        title (to avoid some unexpected truncation); sort out ptracers diags units.
564      - collect ptracer forcing tendency into local 2-D array (passed as argument
565        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
566    
567    checkpoint65 (2014/07/18)
568    o pkg/fizhi:
569      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
570        affects results at machine truncation level. Update output of experiments
571        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
572    o pkg/seaice: more clean up
573      - rename TAF common block tapes to be more consistent and remove
574        unnecessary duplicates
575      - add store directives to remove more recomputations, but use smaller
576        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
577        The idea behind this flag is to reduce the memory footprint when the
578        adjoint of the LSR is not required. As of now, defining the flag
579        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
580        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
581        For experiment offline_exf_seaice, this means on a linux box with gfortran
582        nearly a factor of 10 (but keep in mind there is mostly seaice code in
583        this experiment):
584        > size mitgcmuv_ad
585        text    data        bss     dec        hex
586        5100659 1216  220458952  225560827  d71c8fb
587        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
588        but only a moderate increase of 36% for global_ocean.cs32x15:
589        text    data        bss     dec        hex
590        6695027 1648 1014578664 1021275339 3cdf6ccb
591        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
592      - note: there are still recomputations in global_ocean.cs32x15 and
593        offline_exf_seaice and the gradient agreement changes (gets a
594        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
595      - in general, the AD gradients still are wrong
596    o OpenAD
597      - clean up code_oad/ directories somewhat by moving files
598        dontCompile, dontTransform, keepOriginal to OAD_support/
599    o model/src:
600      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
601        (not currently tested): add dissipation terms before NLFS rescaling of
602        tendencies (previously done after).
603    o pkg/diagnostics:
604      - write stats-diags in ascii file with more digits (same as in monitor).
605    o pkg/down_slope:
606      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
607        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
608    o model/src:
609      - new file "apply_forcing.F" containing all the code previously in
610        external_forcing.F, but with new argument list: pass, as new argument,
611        the current level tendency array to update (instead of a direct update
612        of the common bloc array). Change the corresponding calls.
613      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
614        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
615    o pkg/seaice/seaice_lsr, a little bit of clean up
616      - rearrange some code blocks, so that now all calculations for
617        setting up the right-hand-sides done within one single block
618        (I find that easier to read and understand)
619      - rearrange freedrift-code to reduce the number of ifdefs
620      - adjust some indentations and comments
621    
622    checkpoint64z (2014/07/10)
623    o model/src and several pkgs:
624      - change argument list of all S/R called from external_forcing.F and
625        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
626        to pass, as argument, the current level tendency array to update
627        (instead of a direct update of the common bloc array).
628      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
629      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
630    o pkg/seaice/seaice_lsr.F
631      - always initialize local arrays in seaice_lsr_tridiagu/v
632      - add more local tapes to seaice_lsr_tridiagu/v
633      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
634        keep it in bi/bj loop; this seems to be essential
635      - gradients are still wrong but only by 4-7 orders of magnitude
636        instead of 15 orders of magnitude, lab_sea improves a little
637    o pkg/seaice
638      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
639        generates unnecessary code in seaice_lsr_ad
640      - add more store directives in seaice_lsr to avoid unnecessary code
641        in seaice_lsr_ad
642      - exclude some residual computations in seaice_lsr when
643        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
644        in seaice_lsr_ad
645      - add more storing, a new tape (model/src/the_main_loop.F) and
646        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
647        and klockey should be checked by a specialist)
648      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
649        and update lab_sea after previous changes in pkg/seaice below
650    o pkg/autodiff:
651      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
652        viscFacInAd : run time parameters allowing for adjoint switches
653        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
654    o pkg/ecco:
655      - introduce cost_gencost_boxmean.F that computes a box mean
656        temperature (for use in adjoint sensitivity studies).
657    o model/src/set_defaults.F : initialize viscFacAdj to 1.
658    o pkg/mom_common/mom_calc_visc.F:
659      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
660    o pkg/seaice/seaice_summary.F:
661      - statement for SEAICEadjMODE now in autodiff_readparms.F
662    o pkg/seaice:
663      - remove some store directives and add new ones in an effort to get
664        finally rid off the recomputation warnings. This is successful
665        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
666        defined (i.e. no extensive recomputation warnings left), but there
667        are still too many recomputations on the solver iteration level
668      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
669      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
670        SEAICE_SIZE.h
671      - add a store directive in S/R seaice_calc_viscosities
672    o pkg/seaice (ITD code):
673      - fix definition of Hlimit for multi-threaded case
674      - use double precision arithmetic to compute Hlimit: this affects results;
675        update output of experiment seaice_itd.
676    o replace content of verification/seaice_itd
677      - instead of a 1D column use the configuration of offline_exf_seaice
678        to test the ice thickness distribution code with ridging
679      - this is a first shot at this experiment
680      - change of some defaults of ridging parameters SEAICEhStar (from
681        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
682        and lot of new comments.
683    
684    checkpoint64y (2014/06/20)
685    o pkg/seaice/seaice_reg_ridge.F:
686      - modify the regularization of very small volumes of ice; only check
687        total volume HEFF, and do not apply correction to individual ice
688        classes because that leads to funny patterns in the heat and fw-fluxes
689        into the ocean. Adjust seaice_itd/results/output.txt
690      - replace nITD by SEAICE_multDim in loop-ranges
691    o pkg/exf:
692      - add code to process the case field period = -12. with UV interpolation.
693      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
694        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
695    o verification/global_with_exf:
696      - switch all fields period to -12. (was previously untested) in input/data.exf
697        (but keep secondary test ".yearly" unchanged); update the reference output.
698    o pkg/cal:
699      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
700    o pkg/exf:
701      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
702        to replace logical switch "exf_verbose"
703      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
704    o pkg/sbo:
705      - update from Katherine Quinn: evaluate mass directly from density and SSH
706        (budget using Finite Volume method) instead of from bottom pressure.
707      - allow testreport to collect few selected SBO output ; tested in exp.
708        global_ocean.90x40x15 (after updating the results, to include SBO output).
709      - fix some multi-threading issues (in output part).
710    o model/src & most packages:
711      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
712      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
713        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
714        "data.{pkg}" exist ; and leave the S/R (return) just after.
715      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
716        + call LAND_READPARMS from packages_readparms.F
717    o pkg/seaice:
718      - remove code that resets useThSice in S/R seaice_readparms and
719        replace it by a warning in S/R seaice_check
720      - remove parameter MULTDIM, replace with nITD and runtime
721        parameter SEAICE_multDim (still hard-wired to nITD if
722        SEAICE_ITD is defined)
723    
724    checkpoint64x (2014/05/24)
725    o verification/lab_sea:
726      - update adjoint and TLM output following changes to pkg/salt_plume
727      - un-do the update after putting back local recip_Cp in few places.
728    o pkg/salt_plume: modifications by An Nguyen:
729      - add capability to do brine rejection (salt-plume) as function of
730        volume+tracers (instead of only salinity tracer).
731      - conserve volume by exchanging volume from each kLev to above to
732        accommodate in-coming brine volume
733      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
734      - switch KPP surf buoyancy due to brine forcing to 3-d
735        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
736      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
737      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
738        in East/West Arctic.
739    o pkg/sbo:
740      - incorporate modifications from Katherine Quinn to enable the use of sbo
741        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
742        output for future testreport verification (unfinished).
743    o pkg/atm_phys:
744      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
745        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
746        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
747    o pkg/seaice
748      seaice_calc_ice_strength.F: modify expression to avoid divisions
749        (affects truncation)
750      seaice_do_ridging.F: clean up the insectarium
751      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
752      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
753      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
754      - add some debugging information and error messages (warnings)
755    o model/src: modifications relatd to atmosphere p*:
756      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
757      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
758        of vertical profile tRef in geopotential background and anomaly.
759      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
760        and pkg/atm_phys.
761      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
762        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
763    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
764    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
765        not used right now, but can be used in BGC packages to fix conservation.
766    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
767        other packages too.
768    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
769        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
770    o model/src:
771      - since we have several heat capacity (even in model/src), define "recip_Cp"
772        as local variable (no longer in common block) to avoid any confusion.
773      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
774    o pkg/exf:
775      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
776        air density as function of air Temp, Humidity and atm pressure.
777    
778    checkpoint64w (2014/05/02)
779    o verification:
780      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
781        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
782        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
783        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
784        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
785    o model/src: for atmosphere in p* coords:
786      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
787      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
788        but not yet activated.
789    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
790      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
791      - this changes the results (but not for any verification experiment, because
792        none tests this), but avoids having an extra field in the restart files
793    o pkg/seaice: remove global variable TICE (not needed)
794      - replace by TICES or local variable where necessary (cost_seaice_test,
795        seaice_diagnostics_state)
796      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
797      - use specific read/write routines for reading and writing individual leves
798        of a multilevel field
799    o pkg/ctrl & model/inc:
800      - move additional anomaly fields of control vars (related to options:
801         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
802        from DYNVARS.h into new header file: CTRL_FIELDS.h
803    o pkg/seaice: some small modifications to the ridging code
804      - make fw2ObyRidge a global variable and add the freshwater flux to
805        seaice_growth
806      - pass actual thickness from seaice_prepare_ridging, so that it is
807        computed only in one place and compute it in the same way as in
808        seaice_growth
809      - initialise more fields in seaice_do_ridging that where cause floating
810        point exceptions over land
811    o pkg/seaice: preparations for ridging code and first real ridging code
812      - move most of "PART 1" of S/R seaice_growth into a new and separate
813        S/R seaice_reg_ridge that will both regularize the state variable after
814        advection call the actual ridging routine;
815      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
816        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
817      - remove ridging code from seaice_advdiff
818      - clean up remaining part 1 of seaice_growth in an attempt to make it
819        more readable (this is probably subjective)
820      - call seaice_itd_redist once in the initialisation phase to have the initial
821        conditions in the correct category
822      - finally: add new ridging routine for ITD code
823    
824    checkpoint64v (2014/04/11)
825    o pkg/ecco:
826      - add runtime parameters mdt[start,end]date[1,2]
827      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
828    o pkg/seaice:
829      - make deltaC a global variable, so that it can be used in ridging code
830      - first step towards ridging: introduce new routines that compute
831        ice strength based on ridging parameters
832      - add diagnostic for HSNOWITD
833      - add opnWtrFrac as a global variable (required for ridging scheme)
834    o pkg/salt_plume + pkg/seaice/seaice_growth.F
835      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
836        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
837    o verification/hs94.1x64x5:
838      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
839      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
840    o autodiff:
841      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
842        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
843        For now, only in pkgs used in verification/hs94.1x64x5.
844      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
845        which are specific to TAF/TAMC).
846      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
847        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
848        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
849      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
850        building mitgcmuv_ad (make adAll).
851    o pkg/ecco:
852      - cost_gencost_seaicev4.F:
853         reformulate proxy cost as function of sst and local param SEAICE_freeze
854         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
855      - add stop statement if old names siv4-[sst,vol] are used
856      - add snapshots + cost reports for atmospheric longwave
857      - remove factor 0.1 in front of wtau[u,v]
858      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
859         ALLOW_TMI_SST_COST_CONTRIBUTION
860    o pkg/atm_phys:
861      - add some diagnostics for Short-wave and for convection S/R.
862    o pkg/seaice/seaice_growth:
863      - fix a bug in the lateral melt parameterization for SEAICE_ITD
864        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
865      - rearrange loop order for better vector code in the same code block
866      - rewrite the floeDiameter formula to have fewer divisions
867      -  (miraculously) none of this changes the results of seaice_itd
868    o pkg/smooth:
869      - move param smooth2Ddiffnbt to pkg/ecco
870    o pkg/salt_plume:
871      - salt_plume_frac.F:
872         clean up local param names
873         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
874    o pkg/rw:
875      - add RS version of S/R READ_MFLDS_LEV.
876    o pkg/streamice:
877      - fix the restart test by writing/reading pickup_streamice files.
878    o pkg/seaice:
879      - refine checks for jfnk-related parameters
880      - comment out if statement with SEAICEuseIMEX parameter as long as there
881        is no IMEX code to avoid confusion and surprises
882    
883    checkpoint64u (2014/03/07)
884    o verification/MLAdjust:
885      - rename secondary test suffix:
886         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
887         0.leithD -> AhFlxF  + switch to flux-form
888         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
889         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
890    o pkg/mom_vecinv:
891      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
892        to be before mom_calc_visc.F)
893      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
894      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
895        this is simpler for the adjoint and for diagnostics.
896    o model/src + pkg/momentum:
897      - add input files for  2-D additional Western and Southern cell-edge wall
898         (e.g., to add "thin-wall" where it is =1).
899      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
900        using 2nd hFacZ that is computed from initial (fix domain) hFac
901      - known limitations of thin wall implementation: not yet coded for sigma
902        coords; not working with CD-scheme neither.
903    o pkg/seaice:
904      - rename recently introduced parameters from (wrong name) AB to
905        BDF (backward difference time discretisation)
906      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
907    o tools/adjoint_options:
908      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
909    
910    checkpoint64t (2014/02/01)
911    o pkg/ecco
912      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
913        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
914      - replace hard-coded record number and period which only work for monthly
915        with read-in runtime param that works for other periods (month,day,year)
916    o pkg/thsice
917      - corrected store directive fixes thsice adjoint gradient checks
918    o genmake2 & testreport:
919      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
920        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
921        Update testreport accordingly. No need to set "export OPENAD=true"
922        in adjoint_options/adjoint_oad anymore (will be removed later).
923    o pkg/shelfice:
924      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
925        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
926        so that surface forcing applies to k=kSurf if using pkg/shelfice.
927    o pkg/ctrl, pkg/grdchk, pkg/ecco:
928      - Changes to make GENARR more modular (i.e. invisible if not used)
929    o model/src/temp_integrate.F and salt_integrate.F
930      - re-include store directives that were removed on Dec 27th.
931    o model/src/external_forcing_surf.F
932      - add storage directives for EmPmR and PmEpR to avoid recomputation of
933        seaice_model in the adjoint that is problematic when seaice_model is
934        turned off in the adjoint. The resolved issue dated back to July when
935        EXTERNAL_FORCING_SURF call was moved.
936        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
937    o pkg/exf/exf_check.F
938      - fix a small bug again (originally found by Wentao Liu, now found again)
939      - streamline error output
940    o pkg/streamice and aim_v23:
941      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
942        Apple's /usr/bin/cpp knows what to do:
943        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
944        Target: x86_64-apple-darwin13.0.0
945    
946    checkpoint64s (2014/01/05)
947    o tools/adjoint_options:
948      - switch to fastopt.net TAF server (instead of default fastopt.de) for
949        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
950    o model/src:
951      - remove some unnecessary TAF storage directives in forward_step.F and
952        in dynamics.F (note: not always removed by TAF, e.g., double storage
953        of kappaRU,kappaRV in former version of dynamics.F).
954    o model/src & pkg/ptracers:
955      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
956        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
957        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
958      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
959      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
960      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
961    o useSingleCpuInput separates single-CPU input from single-CPU output;
962        for now only implemented for in exf_interp_read.F
963    o verification/advect_xy:
964      - fix missing EXCH call in local version of ini_salt.F and update output.
965    o momentum diagnostics:
966      - fix which deltaT is used in Total-Tendency diagnostics.
967      - fix typo in diagnostics for momentum tendency from AB.
968    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
969        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
970    
971    checkpoint64r (2013/12/08)
972    o verification/*/results:
973      - Update reference output of experiments that were passing with just 13 digits
974         (make it easier to detect future changes in results)
975    o model/src & pkg/ptracers:
976      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
977        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
978        to inside ptracers_integrate.F ; remove ptracers_advection.F
979    o coupling interface pkgs:
980        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
981      - change the config check to test the agreement of Ocean Depth
982        with ATM land/sea mask (instead of ATM orography);
983      - send to coupler the number of coupler time-steps to do for this run:
984        this allows to check for consistency and don't need anymore to be
985        specified in parameter file "data";
986      in coupler:
987      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
988      - improve report to log-file of config setting (pass log-file unit to few S/R)
989    o pkg/compon_communic:
990      - add coupling send/receive for non-tiled integer vector;
991      - add S/R to check and stop if any proc has an error (similar to
992        eesupp/src/stop_if_error.F but single thread and across Comm_World).
993    o pkg/exch2:
994      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
995        through list of all tiles my proc owns.
996    o model/src:
997      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
998        from rTrans) to simplify dependencies (no need to store rTrans anymore in
999        calling S/R); this affects AD results at machine truncation level:
1000        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
1001        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
1002    o tools/build_options:
1003      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
1004    o coupling interface pkgs:
1005        [compon_communic, atm_compon_interf & ocn_compon_interf]
1006      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
1007        to each S/R that needs it; remove un-used variables.
1008      - change component tile registration (cpl_register.F in both compon_interf
1009        and mitcomponent_tile_register.F) to pass the full list of tiles
1010        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
1011      - with pkg/exch2: adopt the same convention used for I/O to define mapping
1012        towards coupler global array (unless W2_useE2ioLayOut=F):
1013         a) can now use different tiling between atm & ocn comp.
1014         b) no needs to modify the run-Off map when changing tiling (was needed
1015            even if using the same tiling between atm & ocn).
1016         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
1017            full land tiles); not yet tested.
1018      - check for valid mapping from comp. tile to coupler global array
1019      - improve report of tile registration results to log file.
1020    o pkg/exch2:
1021      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
1022        tile-registration (CPL_REGISTER);
1023      - activate (un-comment) definition and setting of "W2_tileIndex" list to
1024        store the local bi,bj indices of each tile;
1025      - also print bi,bj in local report to log file;
1026      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
1027        Jun 2009 modif of pkg/exch2).
1028    o testing on baudelaire:
1029      - run 2 tests at a time: no significant slow down (since enough cpu) and
1030        get the full set of test done earlier
1031      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
1032    o model/src/thermodynamics.F and routines called from it:
1033      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
1034        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
1035        velocity (outp) by adding bolus velocity.
1036      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
1037        mass transport from velocity + lateral grid cell area
1038      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
1039      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
1040     in thermodynamics.F
1041      - remove k from thermodynamics.F and move it to temp_integrate.F
1042        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
1043        loop).
1044      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
1045        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
1046        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
1047        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
1048      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
1049        global_ocean.90x40x15, tutorial_global_oce_biogeo and
1050        tutorial_tracer_adjsens (+ TLM output).
1051    o tools/OAD_support and (verification/*/) code_oad:
1052      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
1053        module conversion ; remove unneeded CPP_EEOPTIONS.h.
1054      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
1055        version (closer to model/inc/CPP_OPTIONS.h).
1056    o model/src:
1057      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
1058        retired list of parameters (routine FREEZE has been replace by surface
1059        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
1060    o pkg/gmredi:
1061      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
1062        velocity (same scheme but affects machine truncation) for GM_AdvForm.
1063      - update output of FWD experiments: front_relax.bvp,
1064        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
1065    
1066    checkpoint64q (2013/11/17)
1067    o verification:
1068      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
1069        tutorial_global_oce_biogeo and global_ocean.90x40x15.
1070      - generate new output (growth & melt) for seaice_itd experiment after
1071        updating the input pickup_seaice files (previously wrong).
1072    o pkg/cost:
1073      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
1074        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
1075        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
1076          cannot be applied to var in common block).
1077        o allows to get results independent of tile-per-proc setting (if using
1078          slower GLOBAL_SUM_SEND_RECV option).
1079      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
1080        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
1081        forward gradients: update output).
1082      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
1083        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
1084    o pkg/mom_common:
1085      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
1086        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
1087        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
1088        ensure that all field value that are used are set.
1089    o tutorial_deep_convection (smag3d):
1090      - add missing scaling in mom_calc_smag_3d.F;
1091      - set smag3D_coeff in input.smag3d such that results do not change.
1092    o pkg/dic:
1093      - change dic_cost.F to compute cost on each tile first and then apply
1094        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
1095        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
1096      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
1097    o eesupp/src & pkg/mdsio:
1098      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
1099        (from pkg/mdsio) since they are no longer used for tape IO.
1100      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
1101        (+ keep a copy in pkg/atm_ocn_coupler).
1102    o verification/isomip:
1103      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
1104    o tools/build_options:
1105      - optfile linux_amd64_ifort11, fast (no ieee) case:
1106        to get a working restart for all experiments, add "-fp-model source"
1107        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
1108    
1109    checkpoint64p (2013/10/20)
1110    o pkg/autodiff:
1111      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
1112        criteria, return to simple (default) tape IO format.
1113    o pkg/mdsio (+ eesupp/src):
1114      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
1115        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
1116      - fix globalFile and singleCpuIO options using simpler global mapping.
1117      - new pairs of scatter/gather vector S/R (one for each type, generated from
1118        template) corresponding to simpler global mapping.
1119      - adread_write.F: switch to new S/R (but leave old calls commented) and write
1120        to globalFile when parameter globalFiles is set to True.
1121      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
1122    o pkg/autodiff:
1123      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
1124        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
1125        missing, just add a STOP if array type do not match.
1126    o pkg/exf:
1127      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
1128         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
1129         and rename array obsSIce to exf_iceFraction.
1130    o tutorial_deep_convection:
1131      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
1132        for now all in this exp. code dir.
1133      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
1134        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
1135    o eesupp/src:
1136      - added SINGLE_DISK_IO option because reading of parameter files on
1137        very large number of processors did not work with existing set-up
1138    
1139    checkpoint64o (2013/09/25)
1140    o pkg/atm_phys & atm_compon_interf:
1141      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
1142    o tools/build_options:
1143      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
1144        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
1145        remove CPP setting (was identical to genmake2 default).
1146    o pkg/gmredi & model/src: Some updating and work done on the residual model.
1147      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
1148      - fixed up the calculation of the eddy stress and how it is added to the
1149        external forcing via taueddy_external_forcing.F
1150      - at the moment, it is very experimental and only works with the variable eddy
1151        diffusivity calculated in gmredi_k3d.F
1152    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
1153        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
1154    o testreport (& tools/do_tst_2+2):
1155      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
1156    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
1157      - remove CPP='cpp -traditional -P' (this is genmake2 default)
1158      - add switch (for big setups) to use 'medium' memory-model (but leave it
1159        commented out for now). Note: needed with FC 19 to compile big setups.
1160    o pkg/atm_compon_interf:
1161      - regroup per field origin (model & pkgs) the coupling storage routines
1162         (which accumalate in time each coupling field)
1163      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
1164        update accordingly + simplify aim_do_physics.F
1165    
1166    checkpoint64n (2013/08/26)
1167    o pkg/bbl:
1168      - update formulation to reduce dispersion of tracer properties in bbl
1169      - replaced horizontal and vertical transport parameters with velocities
1170      - changes results for verification/global_with_exf.yearly
1171    o verification/halfpipe_streamice:
1172      - change to matrix construction; update both Fwd & AD output.
1173    o verification/tutorial_tracer_adjsens:
1174      - OpenAD test: switch to vector-invariant momentum since fluxform with
1175        rStar causes problems with OpenAD; update output.
1176    o tools:
1177      - genmake2: define a common prefix for all temp-file names ; move them
1178        to local /tmp disk (but would be easy to move them back);
1179      - xmakedepend: apply the same switch for temp-files.
1180    o pkg/offline:
1181      - changes for use with rStar (NLFS): assume that we continue to provide
1182        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
1183        output files) and apply r* scaling at each time-step (function of the time
1184        varying Eta field); use normal pickup files (needed for restart with NLFS).
1185    o adjoint with OpenAD:
1186      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
1187        package openad.  This package has to be compiled for all runs with OpenAD
1188        instead of specifying code_oad_all as a modification directory.
1189      - link the fortran templates from tools/OAD_support to the build directory
1190        for preprocessing to avoid conflicts between different setups compiled
1191        simultaneously and simplify cleanup.
1192    o pkg/exf:
1193      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
1194        main model or other pkgs are exchanged in EXF_MAPFIELDS).
1195    o model/src:
1196      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
1197        (similar to do_fields_blocking_exchanges.F).
1198    o tools/genmake2:
1199      - remove TAF output src code just before calling staf (when not doing a fresh
1200        built, will stop if things go wrong with staf).
1201      - fix target "adobj" (left from TAF version-2 transition)
1202    o pkg/diagnostics:
1203      - add a parameter to track the status of pkg/diagnostics activation;
1204        this replace/extend the use of logical param "settingDiags" (to check
1205        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
1206        New S/R to print error message and stop when pkgStatus is not right.
1207      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
1208    
1209    checkpoint64m (2013/08/13)
1210    o model/inc:
1211      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
1212        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
1213    o pkg/kpp & aim_v23:
1214      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1215    o pkg/seaice:
1216      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
1217        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
1218      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1219    o eesupp/src:
1220      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
1221        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
1222    o switch to TAF version-2:
1223      - add flow directives to "freeze" naming convention for ad-routines that
1224        are used in I/O routines of adjoint state and associated common blocks
1225        that are used in adcommon.h (backward compatible with version-1)
1226      - update all ad-optfiles (in tools/adjoint_options + few local to some
1227        verification exp) to switch to latest TAF version (currently 2.5.5);
1228        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
1229        out except for diva).
1230      - the major change with TAF version-2 is that both the differentiated
1231        routines and the forward routines (new) are returned as part of the TAF
1232        output source code. Update genmake2 accordingly.
1233      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
1234        with version-2 when compared to TLM or FWD gradient); other experiments
1235        output show minor changes (machine truncation level); update the few AD &
1236        TLM output with 12 matching digits only (some prior to version-2 switch).
1237    
1238    checkpoint64l (2013/08/05)
1239    o model/src:
1240      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
1241      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
1242        when using TAF but only if using OpenAD.
1243    o pkg/mom_common+fluxform+vecinv:
1244      - always set horiz. viscosity arrays to background value before calling
1245        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
1246        only when using variable horiz. viscosity (useVariableVisc=T);
1247      - simplify mom_vecinv.F (only 1 block for momViscosity).
1248    o pkg/mom_common: variable horiz. viscosity in NH code
1249      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
1250        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
1251      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
1252        useBiharmonicVisc & useVariableVisc.
1253      - fix old bug (already in 1rst implementation of variable horizontal viscosity
1254        in calc_gw.F, version 1.27, 2006/06/20):
1255        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
1256        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
1257      - change background horiz viscosity in vertical momentum (gW) to always be
1258        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
1259        any type of variable viscosity, e.g., viscAh/4Grid)
1260      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
1261        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
1262        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
1263        default viscAh,viscA4 is zero).
1264    o model/src:
1265      - extend length of drC & recip_drC from Nr to Nr+1.
1266    o Divided Adjoint (DIVA) with MPI:
1267      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
1268      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
1269        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
1270    
1271    checkpoint64k (2013/07/23)
1272    o tools/OAD_support:
1273      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
1274        and remove it from genmake2.
1275    o tools/build_options:
1276      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
1277        MPI_HEADER_FILES list (let genmake2 find the missing headers)
1278    o verification/halfpipe_streamice:
1279      - change to driving stress formulation; update both Fwd & AD output.
1280    o tools/genmake2 and Divided Adjoint with MPI:
1281      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
1282      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
1283      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
1284        Makefile, which is set by genmake2, and check which mpi-headers are needed.
1285        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
1286      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
1287    o testreport:
1288      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
1289        perform additional runs (number of additional runs is "add_DIVA_runs" taken
1290        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
1291    o verification/lab_sea (AD test):
1292      - change to test Divided Adjoint Run in this set-up (both standard AD test
1293        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
1294    o pkg atm_ & ocn_compon_interf:
1295      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
1296        staggerTimeStep implementation) and disable (retired) corresponding
1297        parameter.
1298    o pkg/offline:
1299      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
1300      - add S/R OFFLINE_CHECK to print offline parameter summary
1301        and stop if loading a file that is not used;
1302      - enable to calculate GMRedi tensor, KPP mixing and convective index
1303        when the corresponding file(s) is/are not specified (but pkg is used).
1304      - comment out resetting of monitorFreq (to endTime) since it still useful
1305        for monitoring CFL numbers and checking offline fields.
1306    o OpenAD:
1307      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
1308        smaller standard output) and generate new (smaller) output (on baudelaire
1309        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
1310    o model/src:
1311      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
1312        (where external_forcing_adjust was called) and change list of arguments;
1313      - merge external_forcing_adjust.F into external_forcing_surf.F
1314      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
1315        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
1316        previously in file "balance_relax.F", now removed); remove corresponding
1317        arrays in FFIELDS.h.
1318      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
1319        a hack for getting back surfaceForcingS (loaded from file) when using
1320        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
1321      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
1322        (was getting only 11 digits for AD-grad, due to different truncation
1323         error in AD code).
1324    
1325    checkpoint64j (2013/07/04)
1326    o pkg/offline:
1327      - to enable the use of other features with pkg offline (e.g., obcs),
1328        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
1329      - comment out "allowFreezing" (now active) in 2 offline testing exp.
1330    o pkg/exf ALLOW_RUNOFTEMP
1331      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
1332      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
1333      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
1334    o pkg/atm_phys:
1335      - allows to add some damping on uVel,vVel (strength only function of k).
1336    o verification, ad-tests:
1337      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
1338        global_ocean_ebm and offline_exf_seaice.thsice.
1339    o verification/halfpipe_streamice:
1340      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
1341        flux input boundary conditions to be ignored; a fix for this bug changed
1342        verification results for forward test.
1343      - add adjoint test.
1344    o pkg/ptracers:
1345      - allow to restart without SOM pickup (resetting SOM to zero).
1346    o pkg/gmredi:
1347      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
1348      - It uses mixing length theory and suppression by steering level effects to
1349        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
1350        to JPO, for more details).
1351      - It also uses the diffusivity to calculate an eddy induced streamfunction
1352        based on a PV closure (rather than a buoyancy closure as in GM).
1353      - New files added to pkg/gmredi:
1354        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
1355          induced overturning streamfunction (called from gmredi_calc_tensor)
1356        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
1357          for use in gmredi_k3d
1358        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
1359          the eddy diffusivity
1360    
1361    checkpoint64i (2013/06/18)
1362    o pkg/cheapaml:
1363      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
1364        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
1365        with pkg/cheapaml.
1366    o utils/python: add subpackage for cubed sphere function, first example is
1367        simple cs.pcol to plot 2D fields on a map
1368    o pkg/streamice:
1369      - This is a new package in MITgcm, which solves dynamic equations for ice
1370         sheets and ice streams
1371      - At the moment it is independent of atmosphere/ocean dynamics, or any
1372        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
1373        ed that this will change)
1374      - There is a new verification exercise that tests it, halfpipe_streamice,
1375        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
1376        rectangular embayment
1377      - halfpipe_streamice is forward-only for now, will have TAF test soon
1378      - for questions, email dgoldber@mit.edu
1379    o pkg/thsice:
1380      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
1381        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
1382      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
1383         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
1384      - allow precip from pkg/cheapaml to make snow over seaice.
1385    o pkg/cfc:
1386      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
1387      - remove atmos CFC 2-D arrays from common bloc (now local variables)
1388      - change some hard-coded constant to run time parameter for reading and
1389        and interpolating atmospheric CFC ; keep same default as previously.
1390      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
1391      - put arguments in standard order: myTime, myIter, myThid
1392      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
1393        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
1394      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
1395      - new routine to print summary of CFC params and check for consistency.
1396    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
1397      similar to thsice_advdiff.
1398      Note that for the B-grid case the routine parameters uc/vc are overwritten.
1399    o pkg/cfc:
1400      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
1401        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
1402      - fix interpolation of atmphspheric CFC between Sorthern and Northern
1403        hemisphere value.
1404    o pkg/seaice:
1405      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
1406    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
1407                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
1408      - requires an additional time level that is stored in the pickup
1409      - you can start with AB2 from a pickup without this time level with
1410        pickupStrictlyMatch = .false.
1411    
1412    checkpoint64h (2013/05/26)
1413    o pkg/cheapaml:
1414      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
1415        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
1416      - consistent treatment of uWind,vWind location: assume everywhere in
1417        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
1418        (Note: was already the case for Tair,Qair advection);
1419        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
1420      - compute diabatic forcing only in the interior (excluding overlap regions)
1421      - fill in array "Qsw" (for short-wave heating);
1422      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
1423        before any update (consistent with MITgcm state var diagnostics);
1424      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
1425        non periodic ; + adjusted for uWind,vWind (C-grid).
1426    o pkg/seaice:
1427      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
1428        add explicitly pkg/exf in experiments that currently use pkg/seaice.
1429      - allows to compile pkg/seaice without pkg/exf.
1430    o tools/OAD_support:
1431      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
1432        of array "ourStepOf" in function rvNextAction (revolve.F90).
1433    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
1434      - change pkg name (to be used with other atmospheric physics pkg)
1435        but by-pass CVS when making the new pkg so that we keep the CVS history.
1436    o pkg/offline:
1437      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
1438        (previously called from pkg/dic_surfforcing_init.F)
1439    o model/src:
1440      - re-order sequence of calls within packages_init_variables.F, using
1441        standard order, except for:
1442         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
1443         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
1444    o new pkg: atm_phys
1445      - add entry point and source code (previously in contrib
1446          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
1447        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
1448      - re-order sequence of calls within packages_readparms.F,
1449         packages_init_fixed.F and packages_write_pickup.F
1450        (but skip packages_init_variables.F because of TAF issues).
1451      - update contrib/*/atm_gray/ experiment.
1452    o pkg/seaice (ITD code):
1453      - simplify and fix the writing of pickup-files for ITD case
1454    o pkg/seaice (ITD code):
1455      - introduce floe size dependent lateral melt for ITD case;
1456      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
1457      - update seaice_itd experiment main output.
1458    o pkg/thsice:
1459      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
1460        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
1461        changed accordingly pkg/atm2d.
1462    
1463    checkpoint64g (2013/05/01)
1464    o pkg/exf ALLOW_RUNOFTEMP
1465      - if defined,  river and glacier runoff temperature can be read-in from
1466        runoftempfile; runoftempfile needs to have same format as runofffile
1467    o pkg/thsice (& pkg/bulk_force):
1468      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1469        for energy content of Precip + RunOff & Evap (like with pkg/exf).
1470      - change computation domain to always be the interior (without overlap).
1471      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
1472    o verification/tutorial_global_oce_biogeo:
1473      - add preliminary OpenAD setup (still has problems)
1474    o pkg/seaice:
1475      - turn some parameters for choosing the convergence criterion of
1476        the inexact Newton method (JFNK) into runtime parameters for convenience
1477      - clean up seaice_calc_viscosities.F: remove/retire two options for
1478        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
1479        the results of lab_sea/input because a division has been replaced by
1480        a multiplication with the reciprocal (sumNorm)
1481      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
1482        convergence of solver (changes results, of course), and to test some
1483        new features
1484    o model/src:
1485      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
1486      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
1487      - move forcing adjustment (balancing surface forcing) in specific S/R
1488        where might also be applied exchanges (if needed) to forcing arrays.
1489    o pkg/shelfice:
1490      - allow to specify the Ice-Shelf mass per unit area (instead of
1491        shelficeLoadAnomaly) and do the conversion from one to the other
1492      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
1493        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
1494        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
1495        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
1496      - update isomip experiment forward output (get machine truncation error
1497        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
1498    o verification/offline_exf_seaice:
1499      revise data.seaice in input.thermo and input_ad and update results accordingly
1500        HO = 0.2, SEAICE_areaLossFormula = 2,
1501        SEAICE_growMeltByConv = .TRUE.,
1502        SEAICE_doOpenWaterMelt = .TRUE.,
1503      Improve consistency with input.thsice and fix the spurious 500m ice corners
1504    o verification/global_ocean.cs32x15:
1505      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
1506        in icedyn (thsice+seaice-dyn) test and update output.
1507    o verification/offline_exf_seaice:
1508      - adjust list of tested variables (with testreport) and update
1509        standard test output with better slection of monitored fields.
1510    o pkg/cd_code:
1511      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
1512        experiment lab_sea.hb87
1513    o tools/genmake2:
1514      - change default makedepend from the system default to tools/xmakedepend:
1515        When no makedepend is specified, select tools/xmakedepend it the test pass,
1516        otherwise select the system default (if exist and pass the test) or
1517        try to build cyrus-makedepend ; stop if none of the 3 works.
1518    o pkg/exf & pkg/thsice:
1519      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1520        for energy content of Precip + RunOff & Evap. Assumes:
1521       1) Rain has same temp as Air.
1522       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
1523       3) Run-Off comes at the temp of surface water (with same Cp)
1524       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
1525        put directly into Latent Heat flux & should use water-vapor heat capacity.
1526       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
1527        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
1528    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
1529        (compile when SEAICE_ALLOW_JFNK is defined)
1530    o pkg/thsice:
1531      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
1532        implementation): move THSICE_AVE call after the advection (called directly
1533        from thsice_do_advect.F).
1534    o verification/global_ocean.90x40x15 and OpenAD:
1535      New experiment for OpenAD is identical to the one in input_ad except that
1536        multiDimAdvection=.FALSE.,
1537      There is still an issue with this.
1538    o pkg/thsice:
1539      - account for ice velocity (ocean relative velocity) in turbulent heat flux
1540        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
1541        and offline_exf_seaice (main test).
1542    
1543    checkpoint64f (2013/03/31)
1544    o verification/OpenAD:
1545      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
1546    o verification/isomip, pkg/shelfice and OpenAD:
1547      - add OpenAD setup to this exp and make shelfice package work with OpenAD
1548    o verification/tutorial_global_oce_biogeo:
1549      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
1550    o verification/offline_exf_seaice:
1551      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
1552    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
1553      - add OpenAD setup to this exp and make ptracers package work with OpenAD
1554    o pkg/seaice/seaice_evp.F:
1555       mask the asymmetric contribution of the ice-ocean stress (when
1556       the turningAngle is non-zero) over open water to avoid stripes
1557       in the EVP-solutions after many EVP-substeps. This does not change
1558       the verification experiment (because turningAngle=0 in that experiment),
1559       but will affect other EVP solutions with turningAngle.ne.0
1560    o verification, AD & TLM output:
1561      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
1562        additions and multiplications which affect results at machine truncation
1563        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
1564        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
1565        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
1566        digits of matching.
1567    o pkg/seaice:
1568       modify lsr-algorithm so that it vectorizes AND converges by using a
1569       "zebra" method: split vector loop into two with step size 2; this
1570       solves a general convergence problem for the JFNK solver on a vector
1571       computer. It has the potential to even improve convergence for
1572       non-vector machines, but it does change the results so it is turned
1573       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
1574       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
1575    
1576    checkpoint64e (2013/03/05)
1577    o pkg/ecco and several verification experiments:
1578       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
1579       from ecco package, and revert to unified routine in model/src/
1580       Adjust verification experiments accordingly, especially gloal_oce_llc90
1581       Should conclude long-standing work by Gael to reconsile the_main_loop with
1582       ECCO and will enable OpenAD's revolve loop in ECCO setup.
1583    o pkg/generic_advdiff:
1584      - implement compressible flow method for multi-dim advection (similar to
1585        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
1586        TAF generates many recomputations) to use it; no yet coded with implicit
1587        vertical advection.
1588      - change experiment advect_cs (new output) and advect_xy (same output)
1589        to test compressible flow multi-dim advection.
1590    o pkg/generic_advdiff:
1591      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
1592        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
1593    o pkg/seaice:
1594      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
1595        bug affects two verification experiments (lab_sea and lab_sea.hb87),
1596        recover old (wrong) results by setting noSlipFac = 2. in
1597        seaice_calc_strainrates.F;
1598      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
1599      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
1600        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
1601      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
1602    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
1603      - new subroutines seaice_lsr_tridiagu/v
1604      - introduce loop bounds i/jmin/max to be able to use a restricted
1605        additive Schwarz method, but not used for now.
1606      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
1607      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
1608    o OpenAD support
1609       Reorganize S/R call for overall time-stepping loop to facilitate
1610       OpenAD revolve loop replacement
1611       (new S/R main_do_loop.F)
1612    o model/src:
1613      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
1614      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
1615        ADAMS_BASHFORTH2.
1616    o pkg/cheapaml:
1617      - add new parameter (default=F, same as before) to disable full domain
1618        (including land) periodicity in X & Y dir.
1619      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
1620        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
1621        into single S/R CHEAPAML_TIMESTEP.
1622    
1623    checkpoint64d (2013/02/17)
1624    o pkg/monitor (angular momentum):
1625      - do not add Eta contribution to the total AM if using rigid-lid;
1626      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
1627      - horizontal discretisation: compute Zonal wind contribution separately for
1628        each component (instead of from cell centered averaged) and use the 4
1629        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
1630      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
1631        FreeSurf) if using vectorInvariant momentum.
1632    o model/src (horizontal grid):
1633      - move initialisation of all horizontal grid arrays to null value
1634        from specific horizontal grid S/R to main S/R INI_GRID;
1635      - add 2 new arrays to project model C-grid velocity on to zonal direction
1636        (similar to AngleCosC & -AngleSinC but at U and V point location) and
1637        compute them in S/R CALC_GRID_ANGLES.
1638    o pkg/seaice: replace a hard coded parameter by a runtime parameter
1639        SEAICE_JFNK_tolIter
1640    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
1641        preconditioner for JFNK (run LSR into the overlaps as far as possible,
1642        i.e OLx/y-2, but overwrite the solution in the overlaps)
1643      - extend loop range in seaice_calc_viscosity
1644      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
1645      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
1646      - slightly modify loops in tridiagonal solver lsr-preconditioner
1647      - by default remove the extra exchange in seaice_preconditioner with a
1648        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
1649      - modify offline_exf_seaice so that old results without RAS are reproduced
1650        for output.dyn_jfnk.txt
1651      in seaice_fgmres.F (unrelated to RAS)
1652      - add a cpp-flag option for a re-ordered mapping (potentially more
1653        efficient), but because this changes the results, turn it off by
1654        default
1655      - replace the save statement by local common blocks
1656    o utils/matlab:
1657      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
1658      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
1659        instead of local script "load_cs.m".
1660    o pkg/seaice:
1661      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
1662        to the scalarProductMetric and the unrolling. By chance this does not
1663        change the verification experiment, because of the particular domain
1664        decomposition
1665    o pkg/diagnostics:
1666      - change default missing_value from UNSET_RL to -999.
1667    o pkg/layers: improve vectorization of layers_fluxcalc.F
1668      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
1669        time spent in this routine by more than a factor of 3 on an NEC-SX8
1670      - step 2: replace search algorithm by a bisection algorithm found in
1671        Press et al. Numerical Recipes in Fortran. This algorithm can be
1672        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
1673        For now, use this algorithm only for TARGET_NEC_SX defined.
1674      - moved the search algorithm into a separate subroutine, that is kept
1675        within the same file for automatic inlining.
1676      - modified catching potential errors
1677    o pkg/ecco:
1678      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
1679    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
1680      - modifications for ALLOW_GENTIM2D_CONTROL
1681      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
1682      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
1683      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
1684      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
1685    o model/src:
1686      - account for moist thermodynamics in (dry) potential temperature equation;
1687        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
1688        and cpl_aim+ocn.
1689      - also switch to standard compiler (gfortran, was using ifort previously)
1690        for fizhi-cs experiments reference output.
1691    o pkg/ctrl:
1692      - 1st step toward generic time-varying control variable (2D) via CPP option
1693        ALLOW_GENTIM2D_CONTROL
1694      - note new namelist ctrl_nml_genarr in data.ctrl
1695    o verification/global_ocean.cs32x15:
1696      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
1697        thsice calling sequence and update "output.icedyn.txt" output file.
1698    o pkg/ptracers:
1699      - from Ryan A.: code to allow to restart a tracer at regular time interval
1700        specifying a reset frequency and a reset-phase (for each tracers).
1701    o pkg/thsice:
1702      - implement new sequence of calls for thsice+seaice:
1703          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
1704          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
1705      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
1706        in CPP_OPTIONS.h) to recover old sequence;
1707      - update diagnostics for Intermediate State thsice diagnostics: now filled
1708        just before advection (instead of just after advection in old sequence);
1709      - update output of experiment offline_exf_seaice (standard test);
1710      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
1711        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
1712    o pkg/aim_v23:
1713      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
1714      - use standard pkg/mdsio routines to read & write CO2 pickup file;
1715      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
1716      - Implement new sequence of calls for seaice advection (with thsice and
1717        seaice diffusion): do ice advection after ice-Thermodynamic (previously
1718        was done before); change aim_do_physics.F (split the bi,bj loops block);
1719      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
1720    o pkg/thsice:
1721      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
1722        where just seaice diffusion is used without seaice-dynamics.
1723    
1724    checkpoint64c (2013/01/18)
1725    o pkg/seaice:
1726      - add a parameter JFNKres_tFac that can replace JFNKres_t
1727        (= JFNKres_tFac*JFNKresidual before JFNK solver)
1728      - add a line search option to the JFNK solver
1729      - move update of u/vIce and computation of initial residual into a separate
1730        routine (same file); makes the code a little easier to read (?)
1731      - the line search requires computation of the residual and for some reason
1732        I cannot do the update of u/vIce at the beginning of the Newton loop
1733        without changing the results, so we move computation of the new residual
1734        also to the end of the Newton loop, even without the line search
1735    o pkg/mdsio:
1736      - write missing value (corresponding to undefined array value) to meta files;
1737        skip this if missing value is one (UNSET_RL would be a better value for the
1738        case of undefined missing value but it's current the default missing-value);
1739        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
1740    o pkg/exf & thsice:
1741      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
1742        diagnostics) even when SHORTWAVE_HEATING is #undef;
1743    o verification/cfc_example:
1744      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
1745        illustrate how to use it).
1746    o verification/offline_exf_seaice:
1747      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
1748        files to only one time-record.
1749      in input.thermo: narrow the 2 bands of low initial ice-concentration near
1750        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
1751        snapshot output; same mcPheePiston value as in thsice with
1752        surf-current=0.2m/s.
1753      in input.thsice: similar set-up as in input.thermo (channel with same seaice
1754        initial conditions).
1755    o verification/cfc_example:
1756      - update file "data" with more standard choice (default rotationPeriod,
1757        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
1758        set deltaTFreeSurf to deltaTtracer) and update the output.
1759    o pkg/layers:
1760      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
1761      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
1762    o verification/offline_exf_seaice:
1763      - set all {field}period to zero for constant-in-time forcing (not tested
1764        anywhere else).
1765    o verification/offline_exf_seaice:
1766      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
1767      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
1768    o model/src:
1769      - implement Finite-Volume method for (hydrostatic) presure gradient
1770        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
1771    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
1772      - In order to be compatible with the default EVP code, this requires changing
1773        the EVP code around a little; and because any small change immediately
1774        breaks the lab_sea.hb87 verification experiment, the reference output is
1775        updated two times (each time the remaining aggrement was only 2 digits):
1776        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
1777        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
1778        The adjoint test lab_sea.evp also needed to be updated.
1779      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
1780        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
1781        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
1782        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
1783        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
1784        kept obscure, because I need to test it a little more.
1785    o pkg/cheapaml:
1786      - fix few incorrect type (_RL/_RS) in subroutine calls.
1787    o pkg/seaice:
1788      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
1789        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
1790    o model/src:
1791      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
1792        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
1793        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
1794    o pkg/cheapaml:
1795      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
1796        update output of experiment cheapAML_box.
1797      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
1798        and set them only in one place (cheapaml_readparms.F).
1799      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
1800      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
1801        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
1802    o model/src/the_main_loop.F:
1803      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
1804    o pkg/seaice:
1805      - remove legacy branch code.
1806      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
1807    o verification/*/code*/SEAICE_OPTIONS.h:
1808      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
1809        SEAICE_CAP_HEFF).
1810    o pkg/cheapaml:
1811      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
1812        to load new forcing fields.
1813      - add missing "_d 0" where it's needed; + some editing (improve indentation).
1814      - remove switch to "-r8" compiler option (no longer needed) in verification
1815        cheapAML_box, keep same output (small trucation error differences).
1816    o verification/offline_exf_seaice:
1817      - add thermodynamics only test.
1818    o verification/cheapAML_box:
1819      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
1820        keep same output (same 14 digits for cg2d).
1821      - switch on "-r8" compiler option (some numerical values are missing
1822        the "_d 0") and update output (only 6 digits for cg2d were preserved).
1823    
1824    checkpoint64b (2012/12/24)
1825    o pkg/cheapaml:
1826      - remove un-used variables (Qnet,EmPmR) from pickup files.
1827      - store tendency of advected variables into cheapaml pickup file
1828        and fix the AB-2 restart.
1829    o verification/offline_exf_seaice and lab_sea adjoint:
1830      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
1831      - switch to 4 time steps in offline, consistent with lab_sea.
1832      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
1833      - update results after change of experiment seaice.
1834    o pkg/seaice:
1835      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
1836        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
1837        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
1838        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
1839    o model/src:
1840      - add run-time parameter to select CG2D solver minimum-residual solution
1841        (in case of a poor convergence).
1842    o pkg/seaice/seaice_lsr.F
1843      - move calculation of matrix coefficients into new
1844        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
1845        file; the main purpose of this change is to be able to reuse the code
1846        in S/R SEAICE_PRECONDITIONER
1847      - modify the computation of the residual so that the mass of sea-ice
1848        is not used twice; this simplifies the calculations, but since
1849        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
1850        not tested in testreport---this does not affect the testreport results.
1851    o verification/seaice_obcs:
1852      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
1853        verification/lab_sea/input.salt_plume; changes results/output.txt*
1854    o model/src:
1855      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
1856    o pkg/seaice:
1857      - improve description of parameters in seaice_fgmres.F and start
1858        cleaning up the code
1859      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
1860        second argument
1861      - add a metric based on grid cell area to SEAICE_SCALPROD; update
1862        results of offline_exf_seaice.dyn_jfnk
1863      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
1864    o pkg/aim_v23:
1865      - fix an other bug in dissipation heating (grid-cell area was missing).
1866    o model/src + pkg/seaice:
1867      - add global (multi-tile) linear solver for pair of tri-diagonal system
1868        along X and Y lines, respectively for U and V component.
1869        Note: 1) MPI and cube-exchange not yet coded.
1870            2) probably not accurate for poorly conditioned / large size problem.
1871      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
1872        default: not compiled and not used.
1873    o pkg/seaice:
1874      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
1875        introduce bi/bj loops and use global_sum_tile_rl instead of
1876        mpi_allreduce in seaice_fgmres.F
1877      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
1878      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
1879      - add a verification experiment for JFNK in offline_exf_seaice
1880    o verification:
1881      - change (for now, only fwd test) offline_exf_seaice experiment:
1882        use a re-entrant channel with idealized coastline (trapezoidal shape)
1883        at southern boundary to explore seaice dynamics and thermodynamics
1884        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
1885        secondary test (input.thsice) use thermodynamics only with SST relaxation.
1886      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
1887    o pkg/exf:
1888      - disable "sstExtrapol" when Nr=1
1889    o verification:
1890      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
1891        to test pkg/cheapaml.
1892    o pkg/aim_v23 & pkg/shap_filt:
1893      - fix dissipation heating (erroneous gravity multiplication factor).
1894    o pkg/seaice:
1895      - remove unused field pressPre from jfnk solver
1896      - rename two subroutines in seaice_preconditioner.F
1897    o eesupp/src:
1898       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
1899    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
1900       - remove wrong parts of the rhs and the lhs (were in there
1901         because I did not understand the concept of this preconditioner)
1902       - add an exchange between u- and v-sweep. This increases communication
1903         by a factor of two but improves the convergence of jfnk. Ideally,
1904         one would like the u- and v-sweep to be independent. So far within
1905         undocumented ifdefs
1906       - reorganize the extra computations for printing the residuals
1907    o tools/genmake2:
1908      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
1909        since it's not necessary (and was preventing to use MNC in some cases).
1910    
1911    checkpoint64a (2012/11/16)
1912    o pkg/autodiff:
1913      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
1914        autodiff_readparms.F no longer depends on calling order (within
1915        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
1916        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
1917        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
1918    o pkg/obcs:
1919      - adding tidal velocity forcing capability to obcs
1920        for usage example, see verification/seaice_obcs/input.tides
1921    o pkg/seaice:
1922      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
1923        SEAICE_LSRrelaxU/V
1924      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
1925    o pkg/aim_v23:
1926      - implement heating from friction (bottom friction and stratospheric drag).
1927    o pkg/shap_filt:
1928      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
1929        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
1930    o model/src:
1931      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
1932        time-constant addMass field from file (addMassFile);
1933      - support for heating due to friction (and Kinetic Energy dissipation):
1934        add option, run-time switch and 3-D field array + support code ; each pkg
1935        or S/R can add heating contribution (if there is a sink of KE); the sum is
1936        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
1937    o pkg/seaice:
1938      - complete merge of ITD code into seaice_growth.F
1939        from MITgcm_contrib/torge/itd/code/
1940        no verification so far, but Torge Martin tested
1941        "1-D test case and Beaufort set up;
1942        deliver okay results after 1 model year."
1943      - complete merge of SEAICE_SIZE.h into all relevant routines
1944      - move computation of eta at Z-points into calc_viscosities
1945        + introduce global field etaZ
1946        + add different methods for computing etaZ, for now the old
1947          method (simple averages of eta to Z-points) is hardwired
1948        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
1949          seaice_preconditioner
1950      - simplify computations for SEAICE_ZETA_SMOOTHREG
1951      - seaice_preconditioner:
1952        + replace one remaining press by pressLoc (mistake)
1953        + adjust printing of residuals
1954      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
1955        + add (SEAICE.h) and rename some counters (initiliased in
1956          seaice_init_fixed.F)
1957        + add _BEGIN/END_MASTER (myThid)  around print statements
1958        + print total number of iterations and failures over SEAICE_monFreq
1959          interval to STDOUT
1960      - move control over output-messages by fgmres to seaice_jfnk to save
1961        some operations
1962      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
1963        in order to make restarts with sol .ne. zero (fgmres with restarts)
1964        (seaice_jfnk.F, seaice_fgmres.F)
1965      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
1966        a serious convergence problem when open boundaries are involved
1967    o pkg/ggl90: fix computation of control volumes for the case of
1968      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
1969      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
1970    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
1971    o pkg/autodiff
1972      - Add inAdMode switch for SEAICEuseDYNAMICS:
1973        SEAICEuseDYNAMICSinAdMode
1974        (extend logic in ADAUTODIFF_INADMODE_SET)
1975    o pkg/seaice
1976      - Step 1 of merging ice-thickness distribution (ITD) code from
1977        MITgcm_contrib/torge/itd/ (author: Torge Martin)
1978        The code implements concept laid out in Thorndike et al. (1975);
1979        code is enabled via CPP flag SEAICE_ITD
1980        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
1981        code is not complete yet!!
1982      - SEAICE_SIZE.h now included in almost all seaice routines
1983    o verification (using seaice):
1984      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
1985        global_ocean.cs32x15.seaice ; update results.
1986      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
1987      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
1988        offline_exf_seaice (previously compiling B-grid).
1989    o pkg/exf:
1990      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
1991        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
1992        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
1993    o pkg/layers (adjust changes from Sept 19):
1994      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
1995        this allows to remove "layers_maxNum" dimension from all layers arrays.
1996    o pkg/layers (adjust changes from Sept 19):
1997      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
1998      - snap-shot extended to all type of layers (not just the 1rst type);
1999      - remove layers variables when corresponding CPP option is undef.
2000    o pkg/layers:
2001      - rename pkg/layers variable and add new output (layer exist & un-weighted
2002        velocity in layer)
2003    o pkg/seaice:
2004      - simplify (?) ocean-drag coefficent computations by using
2005        the same routine in all three solvers (saves some code lines)
2006      - remove global fields DRAGA and DRAGS from C-grid code and
2007        declare them locally in lsr.F (the only place where they are
2008        still used)
2009      - update AD output of lab_sea.evp (very sensitive anyway).
2010    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
2011      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
2012      and SEAICEuseJFNK=.true. A few things to note:
2013      - involves a FGMRES, that is parallel but very inefficient,
2014        because of many scalar products (global sums) in the Gram-Schmidt
2015        orthogonalization method. Needs to be replaced. Original code
2016        from J.-F. Lemieux
2017      - preconditioner for FGMRES is a stripped down version of LSOR
2018      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
2019        preconditioner. For the preconditioner, the default is set to 10.
2020      - Jacobian times vector is computed with finite differences
2021      - marginally related to JFNK-solver: add a smooth regularization for
2022        zeta with tanh that will improve convergence (Lemieux and Tremblay,
2023        2009) for any implicit solver (not implemented for EVP because EVP
2024        does not need this regularization in the first place). Define
2025        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
2026    o eesupp/src:
2027      - check in genmake2 that intrinsic S/R flush is available.
2028      - add S/R to flush IO unit (if intrinsic S/R flush is available)
2029      - flush standard & error msg unit before MPI termination
2030      - if debugMode, flush IO unit after printing msg
2031    o pkg/ctrl:
2032      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
2033        to ctrl_set_unpack_xyz.
2034    
2035    checkpoint64 (2012/10/09)
2036    o pkg/shelfice
2037      - in mom_fluxform.F, mom_vecinv.F:
2038        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
2039        Bug fix KappaRU -> KappaRV
2040        does not change verification/isomip but may change other setups
2041        (presumably constant KappaRU=KappaRV)
2042      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
2043    o pkg/obcs:
2044      - fixed some indexing bugs in obcs_seaice_sponge.F
2045      - added obcs relaxation subroutines for HSALT and HSNOW
2046      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
2047    o pkg/seaice:
2048      - add "multicategory" parameterization for snow in analogy to ice,
2049        default is off for now.
2050    o pkg/obcs:
2051      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
2052        see verification/seaice_obcs/input.seaiceSponge for example application.
2053      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
2054        index setting by master-thread. This fix multi-threads Pb in previous modifs.
2055    o pkg/layers :
2056      - add diagnostics to pkg/layers
2057      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
2058        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
2059    o pkg/generic_advdiff/gad_implicit_r.F :
2060      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
2061    o pkg/seaice/seaice_growth.F:
2062      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
2063    o pkg/obcs:
2064      - change default setting of OBCS_UVICE_OLD from defined to undef;
2065      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
2066        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
2067      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
2068      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
2069        with Southern & Western OB at a tile edge (at least in a simple set-up).
2070    o pkg/obcs:
2071      - change settings of OB index in case OB coincides with tile edge (shared by
2072        2 tiles), so that common OB location is registered by both tiles (instead of
2073        only 1). However, for Southern and Western OB, index value = 0 is not
2074        recognized as valid OB index (=default null value) and needs to be fixed.
2075      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
2076      - new parameter "OB_indexNone" for null index value (for now, still zero)
2077        to replace hard-coded null index value of zero.
2078    o pkg/exch2:
2079      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
2080        always check buffer-size (but outside the loop); move checking for valid
2081        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
2082        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
2083    o pkg/ctrl (pack & unpack):
2084      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
2085        (locally defined) for different variables (+ remove the variable-specific
2086        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
2087        (to be extended to other local file names in ctrl.h).
2088    o pkg/flt:
2089      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
2090    o pkg/mdsio:
2091      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
2092    o tools/genmake2:
2093      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
2094        (added by Alistair in version 1.51 for building without make depend);
2095      - remove Header files list (H_SRC_FILES) from the dependence of targets
2096         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
2097        place in version 1.23): this save going through staf when unrelated header
2098        file has been modified.
2099       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
2100        "make depend" step, still need to do "make links" before "make adtaf".
2101    o eesupp/src (+ few pkg src files) & genmake2:
2102      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
2103      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
2104      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
2105         upper/lower case ; account for space between "#" and undef/define)
2106    o pkg/flt (with exch2):
2107      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
2108      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
2109    
2110    checkpoint63s (2012/09/05)
2111    o pkg/ecco:
2112      - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.
2113      - add more relevant #ifdef ALLOW_SMOOTH ones.
2114      - sort out useAtmWind, useSMOOTH, ctrlSmoothCorrel2D.
2115    o pkg/ctrl:
2116      - CTRL_OPTIONS.h : document CPPs related to smoothing; ALLOW_SMOOTH_CORREL2D/3D,
2117        ALLOW_CTRL_SMOOTH, ALLOW_SMOOTH_CTRL2D, ALLOW_SMOOTH_CTRL3D.
2118      - ctrl.h : document run time params doInitXX, doMainPack, doMainUnpack, doPackDiag,
2119        doSinglePrecTapelev (audodiff param!), ctrlSmoothCorrel2D (new) and
2120        ctrlSmoothCorrel3D (new).
2121        The added ctrlSmoothCorrel2D/3D replace the old ALLOW_SMOOTH_CORREL2D/3D CPP.
2122      - ctrl_readparms.F : initialise ctrlSmoothCorrel2D/3D and read from namelist.
2123      - ctrl_init.F ctrl_pack.F ctrl_unpack.F : switch off ustress/vstress
2124        controls when useAtmWind, and vice versa.
2125      - ctrl_map_ini_ecco.F : UVEL0, VVEL0, edtaux, edtauy cannot be smoothed as tracers.
2126      - ctrl_get_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL2D with
2127          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel2D, IF useSMOOTH.
2128      - ctrl_map_ini_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL3D with
2129          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel3D, IF useSMOOTH.
2130      - ctrl_set_pack_xy[z].F, ctrl_set_unpack_xy[z].F:
2131        replace ALLOW_SMOOTH_CORREL2D/3D brackets with ctrlSmoothCorrel2D/3D.
2132    o pkg/smooth:
2133      - remove un-necessary includes.
2134      - remove ALLOW_SMOOTH*D and ALLOW_SMOOTH_CORREL*D brakets.
2135        Those CPP options were never defined, and not necessary.
2136    o model/src:
2137      - fix CPP brackets in ini_mixing.F (GM_background_K belongs to gmredi).
2138      - standard treatment of useSMOOTH.
2139    o pkg/autodiff:
2140      - add LOGICAL useGGL90inAdMode, useGGL90inFwdMode, useSALT_PLUMEinAdMode,
2141        useSALT_PLUMEInFwdMode allowing to switch off ggl90 and salt_plume adjoint.
2142    o pkg/exch2:
2143      - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)
2144        + start to remove ALWAYS_USE_MPI in source code that TAF does not see.
2145      - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag
2146        and tiles to process mapping.
2147      - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)
2148        moving /EXCH2_FILLVAL_RX/ & /W2_EXCH2_COMMFLAG/ to W2_EXCH2_TOPOLOGY.h;
2149        rename "exch2_tProc" to "W2_tileProc" and move seting of e2FillValue_RX
2150        from w2_eeboot.F to w2_readparms.F.
2151    o eesupp/src:
2152      - set exchNeedsMemsync & exchUsesBarrier according to "usingMPI" (instead of
2153        ALWAYS_USE_MPI) + moved from ini_communication_patterns.F to eeset_parms.F;
2154        also move setting of exchCollectStatistics from exch_init.F to eeset_parms.F
2155      - in eedie.F and all_proc_die.F, always call MPI_FINALIZE when ALLOW_USE_MPI
2156        is defined (remove condition on usingMPI) to match cases where MPI_INIT
2157        has been called.
2158      - fix bug I put in previous modif of exch_sm_3d_rx.template (not much used);
2159      - change default (non-MPI) value of myPid (from 1 to 0) to match MPI settings
2160        (so that on 1 proc, get same myPid independently of usingMPI)
2161      - add a stop if multi-procs but usingMPI=F ; stop also if usingMPI=T and
2162        useCubedSphereExchange with EXCH-1 (safer).
2163      - add "if usingMPI" where it was missing (+ start to remove ALWAYS_USE_MPI).
2164    o pkg/ggl90:
2165      - fix bug in filling corner mask array "mskCor" (FILL_CS_CORNER_TR_RL call)
2166        used in ALLOW_GGL90_SMOOTH code.
2167    o pkg/flt:
2168      - fix typo in FLT_WITHOUT_Y_PERIODICITY (the effect was to ignore stopping
2169        floats at the Southern end of the domain).
2170    o eesupp/inc:
2171      - add a list of CPP-options which can be set by Makefile (DEF_IN_MAKEFILE.h);
2172        but not used (and not to be used) anywhere, just for documentation.
2173    o pkg/autodiff, exf, ptracers & seaice (AD & TL output):
2174      - comment out the very nasty "writeBinaryPrec = writeStatePrec" line, since:
2175        a) can damage previously written records in any other multi-record files.
2176        b) if needed, can easily do it cleanly, by calling S/R WRITE_REC_3D_RL/S.
2177    o tools/genmake2:
2178      - define variable MAKE within Makefile and use it in place of 'make';
2179      - update AD_CONFIG.h (if needed) before building any of the executable
2180        (forward, adjoint or tangent-lin); this involves a 2nd invocation of make;
2181        and add the usual #ifndef/#define AD_CONFIG_H in AD_CONFIG.h;
2182      - always print usual warning comment 'this file is automatically generated'
2183        from script convert_cpp_cmd2defines (+ remove this warning from genmake2).
2184    o pkg/cheapaml:
2185      - updated to correspond to the code used in accepted paper (Nico Wienders).
2186    o pkg/exf:
2187        added run time switch useAtmWind to replace ALLOW_ATM_WIND cpp switch.
2188        ALLOW_ATM_WIND now just sets the useAtmWind default (see exf_readparms.F)
2189        and force defines ALLOW_BULKFORMULAE (EXF_OPTIONS.h).
2190    o pkg/exf, autodiff, ctrl, ecco and seaice:
2191        remove ALLOW_ATM_WIND brackets, or replace them with useAtmWind ones.
2192    o pkg/ctrl, ecco:
2193        allow to compile both ALLOW_U/VSTRESS_CONTROL and ALLOW_U/VWIND_CONTROL.
2194        Depending on useAtmWind, one is inactive, and the other is active (see
2195        exf_getffields.F/exf_getsurfacefluxes.F).
2196    o tools/genmake2:
2197      - improve error msg when failing in 2nd test of check_for_broken_Ff
2198      - fix option '-makefile' short-name (-mf according to genmake2 -help)
2199      - source local config file "genmake_local" just after processing the genmake2
2200        command arguments (previously done before processing arg).
2201    o pkg/grdchk:
2202      - add a call to TURNOFF_MODEL_IO for Tangent-Linear run (in this case, call
2203        to this routine from cost_final has been dropped in g_cost_final)
2204      - improve printed information (more explicit msg, no longer using "print *,"
2205         fix fcpertminus printed value).
2206    o model/src:
2207      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
2208        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
2209        this prevents getting cost-funct reset in adinitialise_varia recomputations.
2210    o pkg/dic:
2211      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
2212        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
2213    o pkg/grdchk:
2214      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
2215      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
2216    o pkg/autodiff/ctrl/grdchk :
2217      - attempt to sort out what works and what does not,
2218        with regard to I/O, and to warn/stop accordingly.
2219    o pkg/grdchk:
2220      - attempt to fix grdchk in the case of useSingleCpuIO.
2221      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
2222       statements were moved from grdchk_main.F and into
2223       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
2224      - a global sum is applied to record numbers icvrec/layer
2225       out of grdchk_loc so that they be passed to I/O routines.
2226    o pkg/smooth:
2227      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
2228        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
2229    o verification/testreport:
2230      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
2231      - can also use compressed (gzip) reference output file;
2232      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
2233        to be easier to collect by testreport.
2234      - update existing TLM output (half out-of-date by more than 3 yrs).
2235      - report NETCDF & LAPACK settings (from genmake2) in output dir.
2236      - report run-time in each individual summary (previously only for AD test);
2237        for TLM test, add also TAF version.
2238      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
2239    
2240    checkpoint63r (2012/08/15)
2241    o tools/genmake2:
2242      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
2243    o pkg/ecco/ecco_cost_final.F :
2244      - fix fc print statements (to stdout and costfunction0000) so
2245        that the printed value is always after the global sum.
2246    o pkg/seaice/seaice_dynsolver.F :
2247      - fix ice strength assymptote at SEAICE_area_max<1
2248        (no change for the standard case of SEAICE_area_max=1)
2249    o some cleaning:
2250      - pkg source files: ensure that all *.F files from each pkg included the
2251        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
2252        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
2253        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
2254        includes;
2255      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
2256      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
2257        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
2258        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
2259      - update option-file CPP_OPTIONS.h of all AD experiments:
2260        * no longer include PACKAGES_CONFIG.h ;
2261        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
2262        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
2263          including ECCO_CPPOPTIONS.h).
2264    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
2265      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
2266        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
2267        not necessary accurate).
2268      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
2269        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
2270        deliberately break compilation (a remainder that it needs to be customized)
2271      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
2272      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
2273      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
2274    o tools/genamke2:
2275      - check for lapack.
2276    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
2277      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
2278        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
2279        from both packages.
2280      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
2281      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
2282      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
2283        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
2284    o pkg/cost : add comments to explain special and/or untested setups.
2285    o pkg/exf:
2286      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
2287        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
2288    o verification/*/code_ad:
2289      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
2290      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
2291      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
2292        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
2293    o pkg/seaice :
2294      - added possibility to change ice strength/PRESS0 relationship to
2295        HEFF, according to the following run time parameters
2296        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
2297        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
2298        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
2299    o pkg/ggl90 :
2300      - added run time flag mxlSurfFlag to include the code that ensure
2301        mixing between first and second level (previously included as a comment)
2302    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
2303      - add test of newly added dumpAdByRec=T option where
2304        we write all records to one file per variable.
2305    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
2306      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
2307        to check that this code is ok with taf and compiles in adjoint.
2308    o pkg/autodiff :
2309      - added run time param dumpAdByRec : ad dump format switch.
2310        If true then write all records to one file per variable.
2311        Else write one file per record (remains the default).
2312      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
2313    o pkg/seaice:
2314     - Added SEAICEuseTILT run time switch : if set to
2315       false then omit the tilt term in seaice dynamics.
2316     - Fix free drift calculation.
2317    o pkg/shelfice:
2318      When initializing SHELFICEDragQuadratic, set default to be
2319      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
2320      but retain option to set it independently
2321      (inconsistenty spotted by Veronique Dansereau)
2322    o eesupp/inc:
2323      - in EEPARAMS.h, add real-type constant for some frequently used simple number
2324         (0,1,2,1/2), with name explicitly referring to RS/RL type.
2325    o model/src:
2326      - move balancing of relaxation terms to new S/R balance_relax.F.
2327    o pkg/autodiff:
2328      re-write active I/O high-level (control) S/R:
2329      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
2330      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
2331      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
2332        MDS_READ/WRITE_FIELD); change loops to multi-threads.
2333      - update and merge active_file_control_slice.flow into active_file_control.flow
2334      - update the calls in lower level S/R (active_file.F, active_file_g.F and
2335        active_file_ad.F) keeping the argument list and function unchanged.
2336      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
2337        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
2338      - new low-level active I/O routines, one for each type (RL/RS), for active var
2339        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
2340        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
2341        right type.
2342    o autodiff and RS=real*4:
2343      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
2344        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
2345      - change argument type of 3-D mask argument to _RS to match type in the call
2346        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
2347    o pkg/thsice:
2348      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
2349      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
2350        fresh-water flux: uniform correction or proportional to local precip.
2351    o pkg/ctrl:
2352      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
2353      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
2354                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
2355      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
2356    
2357    checkpoint63q (2012/07/30)
2358    o pkg/autodiff:
2359      note about monitor and snap-shot of ad-variables:
2360      a) need to apply ADEXCH before monitor or output of ad-vars to include
2361       overlap contributions (was done for adjDump but missing for monitor).
2362      b) since ADEXCH implies adding overlap values to interior array, machine
2363       truncation error is expected when adding an ADEXCH call in the middle of
2364       the time-stepping (although mathematically identical).
2365      modifs:
2366      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
2367        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
2368      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
2369        apply ADEXCH before monitor or snap-shot of ad-variables:
2370           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
2371      - implement new method (copy+adexch) for snap-shot and monitor of main model
2372        ad-vars (initially not used by default -> output unchanged).
2373      - change default (set to 2) to use new method and update few output_adm.txt
2374        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
2375        and both tutorial_tracer_adjsens tests).
2376      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
2377        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
2378    o pkg/ctrl:
2379      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
2380      generic control variables via
2381      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
2382      Only required customization should be S/R ctrl_map_ini_genarr.F
2383      (routine in repository contains example)
2384    o pkg/exf:
2385      - fix and refine checking of surface-relaxation setting when using EXF
2386    o verification (adjoint exp):
2387      - reduce length of simulation by half for experiment global_ocean.cs32x15
2388        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
2389    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
2390      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
2391        of KE that can occur with aggressive optimization
2392      + put quadratic bottom drag calculation in separated loops (only done if
2393        using bottomDragQuadratic)
2394    o model/src: CG2D_NSA
2395      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
2396         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
2397      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
2398         change cg2d residual target to be expressed in Wunits (=> do not normalise
2399         RHS ; this fix global_max Pb with TAF); update output.
2400    o verification/tutorial_tracer_adjsens:
2401       improve parameter consistency (and get rid of warnings):
2402       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
2403       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
2404       - use staggerTimeStep (for stability) in som81; use default rotation period.
2405    o pkg/exch2:
2406      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
2407        reset to 0 = 1 long line in X)
2408    o pkg/mdsio:
2409      - fix reading of dimensions from meta file for large-size domain
2410    o model/src:
2411      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
2412      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
2413        Cubed-Sphere Exch with CS-corners inside the domain;
2414        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
2415        globalArea and to set hasWetCSCorners.
2416      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
2417        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
2418      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
2419        useCDscheme and useCubedSphereExchange).
2420    o pkg/seaice/seaice_growth.F :
2421      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
2422        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
2423        when the previous code was not correct.
2424      - in all cases diagnoze the boundary condition mismatch to SIaaflux
2425      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
2426        that term to QNET (essentially to set the melt/freeze water to 0degC).
2427        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
2428    o verification/global_ocean.cs32x15/input.seaice :
2429      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
2430      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
2431      - update results (output.seaice.txt) accordingly.
2432    o verification/lab_sea/input/data.seaice :
2433      - remove SEAICEheatConsFix, which is now be tested
2434        in global_ocean.cs32x15. The presently coded fix
2435        is only consistent with real fresh water + nlfs.
2436      - update results (output.txt) accordingly.
2437    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
2438    o AD_CONFIG.h file:
2439      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
2440      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
2441        add it explicitly in each fortran src file where it is needed.
2442        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
2443        thus introducing potentially wrong dependency; therefore, better to include
2444        it only where it's really needed, and after any other included OPTIONS file
2445        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
2446        or ALLOW_TANGENTLINEAR_RUN).
2447    
2448    checkpoint63p (2012/07/06)
2449    o pkg/autodiff:
2450      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
2451      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
2452        which are now read from new parameter file "data.autodiff" (inAdExact
2453        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
2454      - add file "data.autodiff" in all verification/*/input_ad/ directories.
2455      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
2456        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
2457    o verification/tutorial_tracer_adjsens/
2458      - add extra sub-verification which uses "SOM" advection scheme
2459        (2nd Order-Moment Advection Scheme, Prather Limiter) with
2460          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
2461        and in data:
2462          multiDimAdvection=.TRUE.,
2463          tempAdvScheme=81,
2464          saltAdvScheme=81,
2465    o model/src:
2466      - introduce ALLOW_BALANCE_RELAX which allow the removal
2467       of the global mean of relaxation terms by setting
2468       balanceThetaClimRelax and balanceSaltClimRelax
2469      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
2470       This case is now treated appropriately in seaice_growth.F
2471    o pkg/seaice:
2472      - do balanceEmPmR and balanceQnet based on the net fluxes
2473        (SItflux) that enter the ocean+ice system rather than QNET
2474        and EMPMR. Works best in real fresh water.
2475      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
2476        out of the diagnotics bloc, and stored in global arrays.
2477    
2478    checkpoint63o (2012/06/29)
2479    o vertical mixing schemes:
2480      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
2481      - replace computation of density (in Function STATE1, opps_calc.F) by a call
2482        to S/R FIND_RHO_SCALAR
2483      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
2484        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
2485        affects output (vermix.ggl90) at truncation level.
2486    o testreport:
2487      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
2488        (nSx,nSy) for the number of threads (from eedata.mth)
2489    o model/src:
2490      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
2491        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
2492    o verification/tutorial_tracer_adjsens/
2493      - compile with ALLOW_CG2D_NSA
2494      - run with nonlinFreeSurf=3
2495      - update reference output_adm.txt
2496    o tools/genmake2:
2497      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
2498        refine usePROFILES switching off (only when NetCDF is not available).
2499    o verification (atmospheric set-up):
2500      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
2501    o pkg/profiles : refine profiles and files handling.
2502    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
2503    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
2504      - changes to use model/src/the_main_loop.F rather than the ecco version
2505        in ecco type adjoint runs.
2506    o model/src:
2507      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
2508      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
2509      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
2510    o model/src:
2511      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
2512        update output of test experiment bottom_ctrl_5x5.
2513    o pkg/generic_advdiff:
2514      - implement vertical bi-harmonic diffusion (for now, only for T & S and
2515        only explicitly).
2516    o verification/bottom_ctrl_5x5/
2517      update reference output (results changed quite some time ago,
2518      not sure when; but new reference results look ok in terms of grdchk)
2519    o verification/1D_ocean_ice_column/
2520      For verification purposes, the exact adjoint rather than an approx.
2521      should be used (e.g., to comare against F.D. or TLM).
2522      removed autodiff_inadmode*_ad.F routines in code_ad/
2523      Update results/ accordingly.
2524    o pkg/cal:
2525      - change cal_getdate.F so that output date is function of input time only
2526        (less ambiguous, not mixed up with input iteration number).
2527      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
2528    o pkg/diagnostics:
2529      - implement calendarDumps also for stats-diags
2530      - implement calendarDumps also for snap-shot output (negative freq)
2531      - for now, ignores calendarDumps if non-zero phase-lag.
2532    
2533    checkpoint63n (2012/06/04)
2534    o model/src:
2535      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
2536        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
2537      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
2538        similar to calc_r_star.F); update results of experiment internal_wave and
2539        tutorial_global_oce_in_p (affected @ truncation level).
2540    o pkg/shelfice:
2541      - add parameterisation of advective-diffusive flux into the ice shelf
2542        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
2543      - simply eps3/3a computation
2544    o eesupp:
2545     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
2546       between tiles, just fill-in edges assuming locally periodic subdomain) and
2547       add corresponding exchange subroutines (EXCH0);
2548     - new CG-solver version (_EX0) for disconnected-tiles special case.
2549    o model/src (CG-solvers):
2550     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
2551       (similar final residual output and max-Iter number as with standard version);
2552     - allows to store and use lowest-residual solution (standard & _SR versions);
2553     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
2554     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
2555    o eesup/src:
2556     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
2557       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
2558    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
2559    
2560    checkpoint63m (2012/04/27)
2561    o pkg/shelfice:
2562     - account for partical cells in surface level below ice-shelf for hydrostatic
2563       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
2564    o ad test experiments:
2565     - update and rename to "ad_optfile.local" local AD-optfile specific to a
2566       particular adjoint verification experiment (in verification/*/code_ad/)
2567    o pkg/seaice & pkg/exf:
2568     - Part two of ECCO-CLIVAR code merges.
2569       Completes merge of seaice area relax. code.
2570       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
2571       to be set in EXF_OPTIONS.h since this pkg controls its I/O
2572       (and avoids second CPP option in SEAICE_OPTIONS.h)
2573     - change default value of costIceStart & costIceEnd to a valid date.
2574     - add snowPrecip to HSNOW in seaice_growth
2575    o pkg/ptracers:
2576     - move ptracers summary and setup check into separated S/R ; add a check for
2577       valid PTRACERS_Iter0 value (error+stop or just warning).
2578    o pkg/cal (+ pkg/ecco):
2579     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
2580       as input; and for AD, unless both are not differentiable (e.g., k index)).
2581    o model/src:
2582     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
2583       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
2584       temporary set to usingZCoords value (to be changed to F when using shelfice).
2585     - hydrostatic pressure: implement partial cell near the surface also for
2586       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
2587       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
2588    o pkg/ctrl/ctrl_init.F:
2589     - add a formal parameter to s/r ctrl_init_rec to print
2590       xx_$(ctrl_valiable)_file for easier debugging
2591     - move call of cal_* routines into the if-block where they are really
2592       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
2593       to specify a startdate
2594    o pkg/seaice:
2595     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
2596       global_ocean.cs32x15/code versions).
2597     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
2598       verification experiment global_ocean.cs32x15.seaice and update results.
2599    o pkg/exf:
2600     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
2601       (according to useExfYearlyFields).
2602    o pkg/cal:
2603     - move calendar setting & summary (previously in cal_readparams.F) into new
2604       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
2605       length of the simulation is set (after SET_PARMS call); This is an attempt
2606       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
2607     - For safety: keep a record of pkg/cal parameter settings status
2608               to allow to STOP if one pkg/cal S/R is called too early.
2609     - add a stop in all basic pkg/cal subroutines if called before setting is done.
2610     - modify cal_getdate.F: stop when nothing was returned;
2611       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
2612       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
2613    
2614    checkpoint63l (2012/04/04)
2615    o pkg/bbl:
2616      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
2617        update global_with_exf output.yearly.txt file.
2618    o pkg/cal:
2619      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
2620      - remove 2 unsused and very short (1 line only) functions ;
2621      - remove unsused subroutines from AD-Diff list.
2622    o model/src:
2623      - start to implement clean wait to stop in initialization S/R (config_check.F,
2624         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
2625    o folowing PRINT_MESSAGE changes:
2626      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
2627  o pkg/bbl:  o pkg/bbl:
2628    - modification so it can work with z*    - modification so it can work with z*
2629    - replace deltaT with dTtracerLev(k) for asynchronous time stepping    - replace deltaT with dTtracerLev(k) for asynchronous time stepping

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