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revision 1.1641 by dimitri, Mon Apr 2 04:34:07 2012 UTC revision 1.2100 by mlosch, Wed Dec 3 17:27:18 2014 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o add eesupp/src/fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
8      and call it in seaice_lsr when using nonzero SEAICE_OLx/y
9    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
10      LSR (following Hutchings et al. 2004)
11      - introduce zetaZ as a global variable (requires adjustments in
12        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
13        in seaice_calc_viscosities.F
14      - new flag SEAICEuseStrImpCpl (default off)
15      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
16        momentum equations
17      - JFNK-solver (preconditioner) adjusted to allow using this method
18        (where it does not have any positive effect)
19    o pkg/seaice
20      - add overlap for restrictive additive Schwartz method also to LSR, but
21        turn it off by default (because it only seems to work for non-cubed
22        sphere/llc topologies)
23    o pkg/autodiff
24      - add extra exchanges in addummy_in_steppging also for mnc output
25    o pkg/seaice:
26      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
27        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
28    o pkg/obcs:
29      - add option to specify domain-connected piece Id along OB though files
30        (for now, only used to diagnose PhiVel; default =1 -> global correction)
31      - modify obcs_diag_balance.F to process each connected-part separately;
32        exclude OB where Id = 0 but keep the full divergence there (-> constant
33        Psi along this portion of OB and all inflow derived from grad(Phi))
34      - add example of OB-conect files in verification/so_box_biogeo/input.
35    o pkg/diagnostics:
36      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
37      a) use non zero matrix element across OB and solve for Phi 1 grid point
38         outside OB (i.e, where tracer OBCS are applied).
39      b) global imbalance of inFlow/outFlow across OB: instead of modifying
40         velocity across OB, spread it uniformly along the OB in the RHS.
41    
42    checkpoint65g (2014/11/19)
43    o pkg/diagnostcis:
44      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
45    o pkg/my82,pp81,kl10:
46      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
47        field diffKr as background diffusivity to set minimum diffusivity value.
48    o pkg/seaice:
49      - add new parameter SEAICEuseEVPrev (for revisited EVP by
50        Bouillon et al 2013)
51      - add SEAICE_evpAlpha/Beta to namelist
52      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
53        involve trivial re-ordering of divisions/multiplications that should not
54        have any effects, but ... they do change the results of lab_sea.hb87 so
55        that only 2 digits of agreement remain, in line with the general
56        instability/fragility of the evp-code. For now, I do not care and just
57        update the verification experiment
58    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
59      - remove xx_genarr2d_numsmooth etc
60      - use xx_genarr2d_preproc etc instead
61      - carry out smooth_correl2D at initialization stage rather than during
62        time stepping.
63      - get smoothOpNb from xx_gentim2d_preproc
64    o global_oce_cs32 :
65      - add test of generic ecco capabilities.
66    o pkg/exf/exf_getsurfacefluxes.F :
67      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
68    o pkg/ctrl,ecco :
69      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
70        is defined.
71    o pkg/seaice: add diagnostics for Delta (deformation parameter)
72    o model/src:
73      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
74        diffusivity (background) is specified but ignored.
75    o verification:
76      - in testreport, convert hostname to lower case for default output dir name
77    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
78    o pkg/dic: add modifications from Hajoon:
79      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
80      - light attenuation: add self-shading effect by climatological Chlorophyll
81        (read from file).
82    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
83        compiles when SEAICE_ALLOW_DYNAMICS is undefined
84    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
85        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
86        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
87        approach where CPP_OPTIONS.h includes an omnipotent
88        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
89    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
90        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
91    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
92        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
93        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
94    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
95      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
96      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
97      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
98      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
99    o pkg/ctrl,ecco,exf :
100      - remove variables associated with NON-generic costs,
101        unless ECCO_CTRL_DEPRECATED is defined.
102      - remove NON-generic NON-obcs controls,
103        unless ECCO_CTRL_DEPRECATED is defined.
104    o pkg/ctrl : added ctrl_local_params.h
105    o pkg/ecco : added ecco_local_params.h
106    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
107        experiments, which will progressively be removed once the
108        experiments are revised to use only generic controls/costs.
109    
110    checkpoint65f (2014/10/13)
111    o pkg/ctrl, ecco, seaice : minor changes in headers
112    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
113        cost function and control capabilities added since checkpoint65c.
114    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
115    o pkg/ecco: increase modularity and improve logic
116      - ecco_toolbox.F (new) : basic operations that are often used,
117        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
118        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
119      - cost_gencal.F (new) : determine filnames and records.
120      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
121      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
122        and exploit the above functions leading to more compact code.
123      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
124      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
125        using_ers, using_gfo, using_mdt is now only defined within gencost)
126    o pkg/ecco: extend generic cost capabilities
127      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
128        capabilities via gencost_preproc (+ _c,_i,_r related params),
129        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
130        gencost_outputlevel arguments to cost_generic
131      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
132        and active_read, making room for gencost_preproc to take effect.
133        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
134      - pkg/ecco/cost_generic.F :
135        compute and store misfit maks*(model-data) in localdif that is
136        then used in cost and for output, output misfit if outlev.GT.0
137      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
138        rather gencost_barfile for deciding whether to write barfile
139      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
140      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
141        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
142      - pkg/ecco/ecco_summary.F : report gencost variables
143      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
144    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
145    o pkg/ecco: internal re-organization
146      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
147        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
148        mv relevant variables definition from ecco_cost.h to ecco.h,
149        make sure gencost routines only include ecco.h)
150      - throughout : add missing CCP switches, rm unused variables,
151        and rm un-necessary CPP switches
152      - throughout gencost routines : replace modelstartdate with
153        gencost_startdate when needed
154      - cost_bp_read.F : use arguments, instead of common blocs
155        so that it can be used also by (new) cost_gencost_bpv4.F
156      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
157      - ecco_phys.F : compute etanFull
158      - ecco_readparms.F : rename using_topex as using_tpj, add
159        bpv4-grace to gencost list, initialize added parameters
160      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
161    
162    checkpoint65e (2014/09/28)
163    o pkg/obcs:
164      - replaced the just-added CPP options with run-time variables
165        (see pkg/obcs/OBCS_PARAMS.h for details)
166    o pkg/obcs:
167      - add additional CPP options for sponge boundary layers
168        (see pkg/obcs/OBCS_OPTIONS.h for details)
169    o pkg/atm_phys:
170      - implement simple (obliquity only, assuming circular planet orbit)
171        seasonal cycle for incoming insolation ; used when run-time parameter
172        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
173    o pkg/exf, pkg/ecco, pkg/ctrl:
174      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
175      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
176      - implement gentim2d for xx_tauu, xx_tauv
177    o pkg/ctrl, pkg/ecco :
178      - fix and complement the generic controls implementation
179    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
180        pkg/shelfice/shelfice_thermodynamics.F,
181        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
182        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
183      - add weight in CTRL_GET_GEN calls
184    o pkg/ctrl :
185      - ctrl_get_gen.F : add weight as input parameter, and apply
186        it directly rather than using smooth_correl2Dw (to be retired).
187      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
188    o pkg/ctrl :
189      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
190        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
191      - re-activate ctrl_summary (call in ctrl_init.F)
192    o pkg/ctrl/ctrl_cost_gen.F :
193      - fix CCP brackets, remove un-necessary myiter, mytime
194    o pkg/ecco, pkg/ctrl :
195      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
196      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
197      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
198      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
199    
200    checkpoint65d (2014/09/15)
201    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
202      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
203        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
204    o pkg/ctrl/ctrl_map_ini_genarr.F :
205      - remove compilation failure
206      - replace hard coded example
207      - use ctrl_map_ini_gen2D, 3D
208    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
209      - on/off switch based upon xx_genarr2d_weight,3d
210    o src/packages_init_variables.F :
211      - regroup pkg/estimation calls
212      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
213        (moved to ctrl_init_variables)
214    o cost/cost_init_varia.F :
215      - remove ecco_cost_init_varia
216        (moved to ecco_init_varia)
217    o ctrl/ctrl_init_variables.F :
218      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
219      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
220    o ctrl/ctrl_map_ini.F :
221      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
222        (moved to ctrl_init_variables)
223    o ctrl/ctrl_map_ini_ecco.F :
224      - remove ECCO_PHYS (mv to ecco_init_varia)
225      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
226    o ecco/ecco_ad_diff.list :
227      - add ecco_init_varia.f
228    o ecco/ecco_init_varia.F
229      - new routine
230    o pkg/streamice:
231      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
232        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
233      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
234    o pkg/generic_advdiff:
235      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
236    o pkg/exf:
237      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
238         xxg_precip capability
239      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
240    o pkg/ctrl:
241      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
242    o model/src/load_fields_driver.F :
243      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
244        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
245    o OpenAD verification experiments:
246      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
247        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
248        for now, only in pkgs used in OpenAD verification experiments.
249      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
250        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
251        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
252        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
253    o OpenAD verification tests:
254      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
255      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
256        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
257      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
258        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
259    o model/src & generic_advdiff:
260      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
261        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
262        dynamics requires valid tracer forcing only over tile interior but, for
263        some diagnostics, may need to extend it over 1 point in tile halo region.
264      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
265        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
266        setting in temp/salt/ptracer_integrate.F
267    o pkg/dic:
268      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
269        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
270        in gchem_forcing_sep.F
271    o pkg/autodiff & obcs:
272      - add storage of current OB values for U & V (was already done for T & S).
273    
274    checkpoint65c (2014/08/30)
275    o pkg/dic:
276      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
277        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
278        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
279    o verification:
280      - new experiment testing OBCS and DIC pkgs, using params & output from
281        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
282        passage: take OBCS from the last year of a 2 yrs simulation and initial
283        conditions from t=1.yr while keeping the same forcing.
284    o model/src:
285      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
286        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
287    o pkg/diagnostics (Stats-Diags):
288      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
289        a) refine region where stats are computed, excluding where arrhFac=0 ;
290        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
291        c) extend regional stats over the region edges (for U or V pt location).
292    o pkg/gchem:
293      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
294        pkg/dic is currently changing/updating ptracers values beyond the OB).
295    o verification (hs94):
296      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
297        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
298        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
299        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
300    o pkg/ptracers:
301      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
302        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
303      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
304        with AB-2 code (so that it get tested).
305    o model/src:
306      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
307        with AB-2 code (previously only available with AB-3 code).
308        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
309        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
310        there, by calling CYCLE_AB_TRACER).
311    o pkg/generic_advdiff:
312      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
313        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
314        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
315        S/R temp/salt/ptracers_integrate.F
316    o model/src & pkg/ptracers:
317      - remove common block variables gT,gS (in DYNVARS.h), except when
318         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
319      - remove common block variable gPtr.
320    o model/src & pkgs:
321      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
322         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
323         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
324         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
325      + change accordingly all calling S/R.
326      - use local temperature/salinity/ptracer tendency array (without bi,bj)
327        in S/R temp/salt/ptracers_integrate.F
328    o pkg/seaice:
329      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
330        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
331      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
332        in seaice_lsr
333      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
334        in s/r seaice_lsr_calc_coeffs
335    o pkg/mdsio:
336      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
337        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
338        too long (e.g., > MAX_LEN_FNAM/2 )
339    
340    checkpoint65b (2014/08/12)
341    o pkg/matrix:
342      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
343    o model/src:
344      - fix initialisation of geothermalFile; compile geothermal-flux code in
345        natl_box verification experiment.
346    o model/src & pkg/down_slope:
347      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
348      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
349        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
350        results at machine truncation level: update output of experiments
351        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
352    o pkg/diagnostics (Stats-Diags):
353      - do not cumulate the full volume when DIAGNOSTICS_FILL is
354        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
355        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
356        times (but Min,Max and StD are still wrong).
357    o model/src:
358      - add geothermal flux forcing: read in ini_forcing.F as time-constant
359        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
360    o model/src:
361      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
362        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
363        arrays are already updated while adjustments (filters, conv.adjustment) are
364        still applied later, in S/R TRACERS_CORRECTION_STEP.
365    o model/src:
366      - store in common bloc array "rhoInSitu" the virtual potential temperature
367        anomaly that is used to compute geopotential: this make the atmos code
368        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
369    o pkg/seaice/seaice_lsr.F
370      - rename integer variable ilcall to ipass (that's what it is called
371        in the residual diagnostics
372      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
373        default) for improved non-linear convergence of the first few steps
374      - adjust a few comments and add new ones to explain some of the store
375        directives
376    o pkg/generic_advdiff (& ptracers):
377      - re-work the code to check for valid advection scheme and for minimum
378        size of overlap (now stored in local common bloc in gad_advscheme.F)
379    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
380      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
381      - add an auxilliary variable "bet" and fix store directives and keys in
382        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
383        less exact gradients in my tests); but there are still
384        recomputation warning (although gradients are sort of OK), when
385        SEAICE_LSR_VECTORIZE is not defined, so this flag and
386        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
387      - update verification experiments lab_sea.
388      - change some comments in S/R seaice_calc_viscosities
389    o model/src:
390      - if staggerTimeStep=T, always apply exchange to velocity field in
391        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
392        (independent of using multi-dim advection or not); no effect on FWD run
393        but affects AD results (at machine truncation level): update output of
394        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
395        and isomip (oad: 12.d).
396    o pkg/generic_advdiff:
397      - stop if doAB_onGtGs is set to FALSE but ignored
398      - refine warning related to stability of tracer time-stepping
399        regarding internal wave dynamics.
400      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
401        on staggerTimeStep & implicitIntGravWave (will now get a warning
402        if potentially unstable).
403    o pkg/kl10:
404      - add new pkg "kl10" for mixing due to internal wave breaking, from
405        http://www.sciencedirect.com/science/article/pii/S1463500310000144
406        (contribution from Jody Klymak), tested in verification experiment
407        verification/internal_wave/input.kl10/
408    o isomip experiment:
409      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
410        (input.htd) and update the output.
411    o cd_code experiments:
412      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
413        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
414        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
415        update the corresponding output.
416    o pkg/seaice:
417      - reduce the number of include files and store directives in
418        S/R seaice_lsr_tridiagu/v
419      - change the order of loops in one case in S/R seaice_lsr_tridiagv
420        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
421        get rid off one store directive (a TAF bug?)
422      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
423        S/R seaice_lsr_tridiagv to change the loop range for consistency
424      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
425      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
426        S/R seaice_lsr_tridiagu/v (requires update of
427        offline_exf_seaice/input.dyn_jfnk)
428    
429    checkpoint65a (2014/07/27)
430    o model/src:
431      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
432        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
433        (topo in p-coords, ice-shelf in z-coords); update output of experiments
434        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
435    o model/src:
436      - collect momentum forcing tendency into local 2-D array (passed as argument
437        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
438        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
439        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
440      - collect T & S forcing tendency into local 2-D array (passed as argument to
441        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
442        affects results at machine truncation level (e.g., ocean: if using
443        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
444        correction due to vertical advection).
445      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
446        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
447        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
448        obcs_ctrl (ad & fwd grd @ 12 & 7).
449    o pkg/ptracers & diagnostics:
450      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
451        title (to avoid some unexpected truncation); sort out ptracers diags units.
452      - collect ptracer forcing tendency into local 2-D array (passed as argument
453        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
454    
455    checkpoint65 (2014/07/18)
456    o pkg/fizhi:
457      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
458        affects results at machine truncation level. Update output of experiments
459        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
460    o pkg/seaice: more clean up
461      - rename TAF common block tapes to be more consistent and remove
462        unnecessary duplicates
463      - add store directives to remove more recomputations, but use smaller
464        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
465        The idea behind this flag is to reduce the memory footprint when the
466        adjoint of the LSR is not required. As of now, defining the flag
467        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
468        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
469        For experiment offline_exf_seaice, this means on a linux box with gfortran
470        nearly a factor of 10 (but keep in mind there is mostly seaice code in
471        this experiment):
472        > size mitgcmuv_ad
473        text    data        bss     dec        hex
474        5100659 1216  220458952  225560827  d71c8fb
475        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
476        but only a moderate increase of 36% for global_ocean.cs32x15:
477        text    data        bss     dec        hex
478        6695027 1648 1014578664 1021275339 3cdf6ccb
479        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
480      - note: there are still recomputations in global_ocean.cs32x15 and
481        offline_exf_seaice and the gradient agreement changes (gets a
482        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
483      - in general, the AD gradients still are wrong
484    o OpenAD
485      - clean up code_oad/ directories somewhat by moving files
486        dontCompile, dontTransform, keepOriginal to OAD_support/
487    o model/src:
488      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
489        (not currently tested): add dissipation terms before NLFS rescaling of
490        tendencies (previously done after).
491    o pkg/diagnostics:
492      - write stats-diags in ascii file with more digits (same as in monitor).
493    o pkg/down_slope:
494      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
495        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
496    o model/src:
497      - new file "apply_forcing.F" containing all the code previously in
498        external_forcing.F, but with new argument list: pass, as new argument,
499        the current level tendency array to update (instead of a direct update
500        of the common bloc array). Change the corresponding calls.
501      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
502        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
503    o pkg/seaice/seaice_lsr, a little bit of clean up
504      - rearrange some code blocks, so that now all calculations for
505        setting up the right-hand-sides done within one single block
506        (I find that easier to read and understand)
507      - rearrange freedrift-code to reduce the number of ifdefs
508      - adjust some indentations and comments
509    
510    checkpoint64z (2014/07/10)
511    o model/src and several pkgs:
512      - change argument list of all S/R called from external_forcing.F and
513        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
514        to pass, as argument, the current level tendency array to update
515        (instead of a direct update of the common bloc array).
516      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
517      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
518    o pkg/seaice/seaice_lsr.F
519      - always initialize local arrays in seaice_lsr_tridiagu/v
520      - add more local tapes to seaice_lsr_tridiagu/v
521      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
522        keep it in bi/bj loop; this seems to be essential
523      - gradients are still wrong but only by 4-7 orders of magnitude
524        instead of 15 orders of magnitude, lab_sea improves a little
525    o pkg/seaice
526      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
527        generates unnecessary code in seaice_lsr_ad
528      - add more store directives in seaice_lsr to avoid unnecessary code
529        in seaice_lsr_ad
530      - exclude some residual computations in seaice_lsr when
531        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
532        in seaice_lsr_ad
533      - add more storing, a new tape (model/src/the_main_loop.F) and
534        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
535        and klockey should be checked by a specialist)
536      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
537        and update lab_sea after previous changes in pkg/seaice below
538    o pkg/autodiff:
539      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
540        viscFacInAd : run time parameters allowing for adjoint switches
541        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
542    o pkg/ecco:
543      - introduce cost_gencost_boxmean.F that computes a box mean
544        temperature (for use in adjoint sensitivity studies).
545    o model/src/set_defaults.F : initialize viscFacAdj to 1.
546    o pkg/mom_common/mom_calc_visc.F:
547      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
548    o pkg/seaice/seaice_summary.F:
549      - statement for SEAICEadjMODE now in autodiff_readparms.F
550    o pkg/seaice:
551      - remove some store directives and add new ones in an effort to get
552        finally rid off the recomputation warnings. This is successful
553        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
554        defined (i.e. no extensive recomputation warnings left), but there
555        are still too many recomputations on the solver iteration level
556      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
557      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
558        SEAICE_SIZE.h
559      - add a store directive in S/R seaice_calc_viscosities
560    o pkg/seaice (ITD code):
561      - fix definition of Hlimit for multi-threaded case
562      - use double precision arithmetic to compute Hlimit: this affects results;
563        update output of experiment seaice_itd.
564    o replace content of verification/seaice_itd
565      - instead of a 1D column use the configuration of offline_exf_seaice
566        to test the ice thickness distribution code with ridging
567      - this is a first shot at this experiment
568      - change of some defaults of ridging parameters SEAICEhStar (from
569        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
570        and lot of new comments.
571    
572    checkpoint64y (2014/06/20)
573    o pkg/seaice/seaice_reg_ridge.F:
574      - modify the regularization of very small volumes of ice; only check
575        total volume HEFF, and do not apply correction to individual ice
576        classes because that leads to funny patterns in the heat and fw-fluxes
577        into the ocean. Adjust seaice_itd/results/output.txt
578      - replace nITD by SEAICE_multDim in loop-ranges
579    o pkg/exf:
580      - add code to process the case field period = -12. with UV interpolation.
581      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
582        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
583    o verification/global_with_exf:
584      - switch all fields period to -12. (was previously untested) in input/data.exf
585        (but keep secondary test ".yearly" unchanged); update the reference output.
586    o pkg/cal:
587      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
588    o pkg/exf:
589      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
590        to replace logical switch "exf_verbose"
591      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
592    o pkg/sbo:
593      - update from Katherine Quinn: evaluate mass directly from density and SSH
594        (budget using Finite Volume method) instead of from bottom pressure.
595      - allow testreport to collect few selected SBO output ; tested in exp.
596        global_ocean.90x40x15 (after updating the results, to include SBO output).
597      - fix some multi-threading issues (in output part).
598    o model/src & most packages:
599      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
600      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
601        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
602        "data.{pkg}" exist ; and leave the S/R (return) just after.
603      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
604        + call LAND_READPARMS from packages_readparms.F
605    o pkg/seaice:
606      - remove code that resets useThSice in S/R seaice_readparms and
607        replace it by a warning in S/R seaice_check
608      - remove parameter MULTDIM, replace with nITD and runtime
609        parameter SEAICE_multDim (still hard-wired to nITD if
610        SEAICE_ITD is defined)
611    
612    checkpoint64x (2014/05/24)
613    o verification/lab_sea:
614      - update adjoint and TLM output following changes to pkg/salt_plume
615      - un-do the update after putting back local recip_Cp in few places.
616    o pkg/salt_plume: modifications by An Nguyen:
617      - add capability to do brine rejection (salt-plume) as function of
618        volume+tracers (instead of only salinity tracer).
619      - conserve volume by exchanging volume from each kLev to above to
620        accommodate in-coming brine volume
621      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
622      - switch KPP surf buoyancy due to brine forcing to 3-d
623        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
624      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
625      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
626        in East/West Arctic.
627    o pkg/sbo:
628      - incorporate modifications from Katherine Quinn to enable the use of sbo
629        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
630        output for future testreport verification (unfinished).
631    o pkg/atm_phys:
632      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
633        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
634        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
635    o pkg/seaice
636      seaice_calc_ice_strength.F: modify expression to avoid divisions
637        (affects truncation)
638      seaice_do_ridging.F: clean up the insectarium
639      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
640      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
641      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
642      - add some debugging information and error messages (warnings)
643    o model/src: modifications relatd to atmosphere p*:
644      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
645      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
646        of vertical profile tRef in geopotential background and anomaly.
647      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
648        and pkg/atm_phys.
649      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
650        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
651    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
652    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
653        not used right now, but can be used in BGC packages to fix conservation.
654    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
655        other packages too.
656    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
657        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
658    o model/src:
659      - since we have several heat capacity (even in model/src), define "recip_Cp"
660        as local variable (no longer in common block) to avoid any confusion.
661      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
662    o pkg/exf:
663      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
664        air density as function of air Temp, Humidity and atm pressure.
665    
666    checkpoint64w (2014/05/02)
667    o verification:
668      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
669        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
670        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
671        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
672        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
673    o model/src: for atmosphere in p* coords:
674      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
675      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
676        but not yet activated.
677    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
678      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
679      - this changes the results (but not for any verification experiment, because
680        none tests this), but avoids having an extra field in the restart files
681    o pkg/seaice: remove global variable TICE (not needed)
682      - replace by TICES or local variable where necessary (cost_seaice_test,
683        seaice_diagnostics_state)
684      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
685      - use specific read/write routines for reading and writing individual leves
686        of a multilevel field
687    o pkg/ctrl & model/inc:
688      - move additional anomaly fields of control vars (related to options:
689         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
690        from DYNVARS.h into new header file: CTRL_FIELDS.h
691    o pkg/seaice: some small modifications to the ridging code
692      - make fw2ObyRidge a global variable and add the freshwater flux to
693        seaice_growth
694      - pass actual thickness from seaice_prepare_ridging, so that it is
695        computed only in one place and compute it in the same way as in
696        seaice_growth
697      - initialise more fields in seaice_do_ridging that where cause floating
698        point exceptions over land
699    o pkg/seaice: preparations for ridging code and first real ridging code
700      - move most of "PART 1" of S/R seaice_growth into a new and separate
701        S/R seaice_reg_ridge that will both regularize the state variable after
702        advection call the actual ridging routine;
703      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
704        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
705      - remove ridging code from seaice_advdiff
706      - clean up remaining part 1 of seaice_growth in an attempt to make it
707        more readable (this is probably subjective)
708      - call seaice_itd_redist once in the initialisation phase to have the initial
709        conditions in the correct category
710      - finally: add new ridging routine for ITD code
711    
712    checkpoint64v (2014/04/11)
713    o pkg/ecco:
714      - add runtime parameters mdt[start,end]date[1,2]
715      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
716    o pkg/seaice:
717      - make deltaC a global variable, so that it can be used in ridging code
718      - first step towards ridging: introduce new routines that compute
719        ice strength based on ridging parameters
720      - add diagnostic for HSNOWITD
721      - add opnWtrFrac as a global variable (required for ridging scheme)
722    o pkg/salt_plume + pkg/seaice/seaice_growth.F
723      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
724        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
725    o verification/hs94.1x64x5:
726      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
727      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
728    o autodiff:
729      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
730        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
731        For now, only in pkgs used in verification/hs94.1x64x5.
732      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
733        which are specific to TAF/TAMC).
734      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
735        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
736        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
737      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
738        building mitgcmuv_ad (make adAll).
739    o pkg/ecco:
740      - cost_gencost_seaicev4.F:
741         reformulate proxy cost as function of sst and local param SEAICE_freeze
742         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
743      - add stop statement if old names siv4-[sst,vol] are used
744      - add snapshots + cost reports for atmospheric longwave
745      - remove factor 0.1 in front of wtau[u,v]
746      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
747         ALLOW_TMI_SST_COST_CONTRIBUTION
748    o pkg/atm_phys:
749      - add some diagnostics for Short-wave and for convection S/R.
750    o pkg/seaice/seaice_growth:
751      - fix a bug in the lateral melt parameterization for SEAICE_ITD
752        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
753      - rearrange loop order for better vector code in the same code block
754      - rewrite the floeDiameter formula to have fewer divisions
755      -  (miraculously) none of this changes the results of seaice_itd
756    o pkg/smooth:
757      - move param smooth2Ddiffnbt to pkg/ecco
758    o pkg/salt_plume:
759      - salt_plume_frac.F:
760         clean up local param names
761         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
762    o pkg/rw:
763      - add RS version of S/R READ_MFLDS_LEV.
764    o pkg/streamice:
765      - fix the restart test by writing/reading pickup_streamice files.
766    o pkg/seaice:
767      - refine checks for jfnk-related parameters
768      - comment out if statement with SEAICEuseIMEX parameter as long as there
769        is no IMEX code to avoid confusion and surprises
770    
771    checkpoint64u (2014/03/07)
772    o verification/MLAdjust:
773      - rename secondary test suffix:
774         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
775         0.leithD -> AhFlxF  + switch to flux-form
776         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
777         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
778    o pkg/mom_vecinv:
779      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
780        to be before mom_calc_visc.F)
781      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
782      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
783        this is simpler for the adjoint and for diagnostics.
784    o model/src + pkg/momentum:
785      - add input files for  2-D additional Western and Southern cell-edge wall
786         (e.g., to add "thin-wall" where it is =1).
787      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
788        using 2nd hFacZ that is computed from initial (fix domain) hFac
789      - known limitations of thin wall implementation: not yet coded for sigma
790        coords; not working with CD-scheme neither.
791    o pkg/seaice:
792      - rename recently introduced parameters from (wrong name) AB to
793        BDF (backward difference time discretisation)
794      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
795    o tools/adjoint_options:
796      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
797    
798    checkpoint64t (2014/02/01)
799    o pkg/ecco
800      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
801        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
802      - replace hard-coded record number and period which only work for monthly
803        with read-in runtime param that works for other periods (month,day,year)
804    o pkg/thsice
805      - corrected store directive fixes thsice adjoint gradient checks
806    o genmake2 & testreport:
807      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
808        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
809        Update testreport accordingly. No need to set "export OPENAD=true"
810        in adjoint_options/adjoint_oad anymore (will be removed later).
811    o pkg/shelfice:
812      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
813        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
814        so that surface forcing applies to k=kSurf if using pkg/shelfice.
815    o pkg/ctrl, pkg/grdchk, pkg/ecco:
816      - Changes to make GENARR more modular (i.e. invisible if not used)
817    o model/src/temp_integrate.F and salt_integrate.F
818      - re-include store directives that were removed on Dec 27th.
819    o model/src/external_forcing_surf.F
820      - add storage directives for EmPmR and PmEpR to avoid recomputation of
821        seaice_model in the adjoint that is problematic when seaice_model is
822        turned off in the adjoint. The resolved issue dated back to July when
823        EXTERNAL_FORCING_SURF call was moved.
824        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
825    o pkg/exf/exf_check.F
826      - fix a small bug again (originally found by Wentao Liu, now found again)
827      - streamline error output
828    o pkg/streamice and aim_v23:
829      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
830        Apple's /usr/bin/cpp knows what to do:
831        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
832        Target: x86_64-apple-darwin13.0.0
833    
834    checkpoint64s (2014/01/05)
835    o tools/adjoint_options:
836      - switch to fastopt.net TAF server (instead of default fastopt.de) for
837        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
838    o model/src:
839      - remove some unnecessary TAF storage directives in forward_step.F and
840        in dynamics.F (note: not always removed by TAF, e.g., double storage
841        of kappaRU,kappaRV in former version of dynamics.F).
842    o model/src & pkg/ptracers:
843      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
844        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
845        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
846      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
847      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
848      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
849    o useSingleCpuInput separates single-CPU input from single-CPU output;
850        for now only implemented for in exf_interp_read.F
851    o verification/advect_xy:
852      - fix missing EXCH call in local version of ini_salt.F and update output.
853    o momentum diagnostics:
854      - fix which deltaT is used in Total-Tendency diagnostics.
855      - fix typo in diagnostics for momentum tendency from AB.
856    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
857        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
858    
859    checkpoint64r (2013/12/08)
860    o verification/*/results:
861      - Update reference output of experiments that were passing with just 13 digits
862         (make it easier to detect future changes in results)
863    o model/src & pkg/ptracers:
864      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
865        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
866        to inside ptracers_integrate.F ; remove ptracers_advection.F
867    o coupling interface pkgs:
868        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
869      - change the config check to test the agreement of Ocean Depth
870        with ATM land/sea mask (instead of ATM orography);
871      - send to coupler the number of coupler time-steps to do for this run:
872        this allows to check for consistency and don't need anymore to be
873        specified in parameter file "data";
874      in coupler:
875      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
876      - improve report to log-file of config setting (pass log-file unit to few S/R)
877    o pkg/compon_communic:
878      - add coupling send/receive for non-tiled integer vector;
879      - add S/R to check and stop if any proc has an error (similar to
880        eesupp/src/stop_if_error.F but single thread and across Comm_World).
881    o pkg/exch2:
882      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
883        through list of all tiles my proc owns.
884    o model/src:
885      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
886        from rTrans) to simplify dependencies (no need to store rTrans anymore in
887        calling S/R); this affects AD results at machine truncation level:
888        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
889        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
890    o tools/build_options:
891      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
892    o coupling interface pkgs:
893        [compon_communic, atm_compon_interf & ocn_compon_interf]
894      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
895        to each S/R that needs it; remove un-used variables.
896      - change component tile registration (cpl_register.F in both compon_interf
897        and mitcomponent_tile_register.F) to pass the full list of tiles
898        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
899      - with pkg/exch2: adopt the same convention used for I/O to define mapping
900        towards coupler global array (unless W2_useE2ioLayOut=F):
901         a) can now use different tiling between atm & ocn comp.
902         b) no needs to modify the run-Off map when changing tiling (was needed
903            even if using the same tiling between atm & ocn).
904         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
905            full land tiles); not yet tested.
906      - check for valid mapping from comp. tile to coupler global array
907      - improve report of tile registration results to log file.
908    o pkg/exch2:
909      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
910        tile-registration (CPL_REGISTER);
911      - activate (un-comment) definition and setting of "W2_tileIndex" list to
912        store the local bi,bj indices of each tile;
913      - also print bi,bj in local report to log file;
914      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
915        Jun 2009 modif of pkg/exch2).
916    o testing on baudelaire:
917      - run 2 tests at a time: no significant slow down (since enough cpu) and
918        get the full set of test done earlier
919      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
920    o model/src/thermodynamics.F and routines called from it:
921      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
922        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
923        velocity (outp) by adding bolus velocity.
924      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
925        mass transport from velocity + lateral grid cell area
926      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
927      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
928     in thermodynamics.F
929      - remove k from thermodynamics.F and move it to temp_integrate.F
930        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
931        loop).
932      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
933        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
934        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
935        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
936      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
937        global_ocean.90x40x15, tutorial_global_oce_biogeo and
938        tutorial_tracer_adjsens (+ TLM output).
939    o tools/OAD_support and (verification/*/) code_oad:
940      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
941        module conversion ; remove unneeded CPP_EEOPTIONS.h.
942      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
943        version (closer to model/inc/CPP_OPTIONS.h).
944    o model/src:
945      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
946        retired list of parameters (routine FREEZE has been replace by surface
947        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
948    o pkg/gmredi:
949      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
950        velocity (same scheme but affects machine truncation) for GM_AdvForm.
951      - update output of FWD experiments: front_relax.bvp,
952        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
953    
954    checkpoint64q (2013/11/17)
955    o verification:
956      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
957        tutorial_global_oce_biogeo and global_ocean.90x40x15.
958      - generate new output (growth & melt) for seaice_itd experiment after
959        updating the input pickup_seaice files (previously wrong).
960    o pkg/cost:
961      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
962        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
963        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
964          cannot be applied to var in common block).
965        o allows to get results independent of tile-per-proc setting (if using
966          slower GLOBAL_SUM_SEND_RECV option).
967      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
968        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
969        forward gradients: update output).
970      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
971        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
972    o pkg/mom_common:
973      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
974        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
975        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
976        ensure that all field value that are used are set.
977    o tutorial_deep_convection (smag3d):
978      - add missing scaling in mom_calc_smag_3d.F;
979      - set smag3D_coeff in input.smag3d such that results do not change.
980    o pkg/dic:
981      - change dic_cost.F to compute cost on each tile first and then apply
982        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
983        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
984      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
985    o eesupp/src & pkg/mdsio:
986      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
987        (from pkg/mdsio) since they are no longer used for tape IO.
988      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
989        (+ keep a copy in pkg/atm_ocn_coupler).
990    o verification/isomip:
991      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
992    o tools/build_options:
993      - optfile linux_amd64_ifort11, fast (no ieee) case:
994        to get a working restart for all experiments, add "-fp-model source"
995        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
996    
997    checkpoint64p (2013/10/20)
998    o pkg/autodiff:
999      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
1000        criteria, return to simple (default) tape IO format.
1001    o pkg/mdsio (+ eesupp/src):
1002      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
1003        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
1004      - fix globalFile and singleCpuIO options using simpler global mapping.
1005      - new pairs of scatter/gather vector S/R (one for each type, generated from
1006        template) corresponding to simpler global mapping.
1007      - adread_write.F: switch to new S/R (but leave old calls commented) and write
1008        to globalFile when parameter globalFiles is set to True.
1009      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
1010    o pkg/autodiff:
1011      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
1012        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
1013        missing, just add a STOP if array type do not match.
1014    o pkg/exf:
1015      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
1016         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
1017         and rename array obsSIce to exf_iceFraction.
1018    o tutorial_deep_convection:
1019      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
1020        for now all in this exp. code dir.
1021      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
1022        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
1023    o eesupp/src:
1024      - added SINGLE_DISK_IO option because reading of parameter files on
1025        very large number of processors did not work with existing set-up
1026    
1027    checkpoint64o (2013/09/25)
1028    o pkg/atm_phys & atm_compon_interf:
1029      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
1030    o tools/build_options:
1031      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
1032        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
1033        remove CPP setting (was identical to genmake2 default).
1034    o pkg/gmredi & model/src: Some updating and work done on the residual model.
1035      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
1036      - fixed up the calculation of the eddy stress and how it is added to the
1037        external forcing via taueddy_external_forcing.F
1038      - at the moment, it is very experimental and only works with the variable eddy
1039        diffusivity calculated in gmredi_k3d.F
1040    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
1041        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
1042    o testreport (& tools/do_tst_2+2):
1043      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
1044    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
1045      - remove CPP='cpp -traditional -P' (this is genmake2 default)
1046      - add switch (for big setups) to use 'medium' memory-model (but leave it
1047        commented out for now). Note: needed with FC 19 to compile big setups.
1048    o pkg/atm_compon_interf:
1049      - regroup per field origin (model & pkgs) the coupling storage routines
1050         (which accumalate in time each coupling field)
1051      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
1052        update accordingly + simplify aim_do_physics.F
1053    
1054    checkpoint64n (2013/08/26)
1055    o pkg/bbl:
1056      - update formulation to reduce dispersion of tracer properties in bbl
1057      - replaced horizontal and vertical transport parameters with velocities
1058      - changes results for verification/global_with_exf.yearly
1059    o verification/halfpipe_streamice:
1060      - change to matrix construction; update both Fwd & AD output.
1061    o verification/tutorial_tracer_adjsens:
1062      - OpenAD test: switch to vector-invariant momentum since fluxform with
1063        rStar causes problems with OpenAD; update output.
1064    o tools:
1065      - genmake2: define a common prefix for all temp-file names ; move them
1066        to local /tmp disk (but would be easy to move them back);
1067      - xmakedepend: apply the same switch for temp-files.
1068    o pkg/offline:
1069      - changes for use with rStar (NLFS): assume that we continue to provide
1070        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
1071        output files) and apply r* scaling at each time-step (function of the time
1072        varying Eta field); use normal pickup files (needed for restart with NLFS).
1073    o adjoint with OpenAD:
1074      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
1075        package openad.  This package has to be compiled for all runs with OpenAD
1076        instead of specifying code_oad_all as a modification directory.
1077      - link the fortran templates from tools/OAD_support to the build directory
1078        for preprocessing to avoid conflicts between different setups compiled
1079        simultaneously and simplify cleanup.
1080    o pkg/exf:
1081      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
1082        main model or other pkgs are exchanged in EXF_MAPFIELDS).
1083    o model/src:
1084      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
1085        (similar to do_fields_blocking_exchanges.F).
1086    o tools/genmake2:
1087      - remove TAF output src code just before calling staf (when not doing a fresh
1088        built, will stop if things go wrong with staf).
1089      - fix target "adobj" (left from TAF version-2 transition)
1090    o pkg/diagnostics:
1091      - add a parameter to track the status of pkg/diagnostics activation;
1092        this replace/extend the use of logical param "settingDiags" (to check
1093        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
1094        New S/R to print error message and stop when pkgStatus is not right.
1095      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
1096    
1097    checkpoint64m (2013/08/13)
1098    o model/inc:
1099      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
1100        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
1101    o pkg/kpp & aim_v23:
1102      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1103    o pkg/seaice:
1104      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
1105        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
1106      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1107    o eesupp/src:
1108      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
1109        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
1110    o switch to TAF version-2:
1111      - add flow directives to "freeze" naming convention for ad-routines that
1112        are used in I/O routines of adjoint state and associated common blocks
1113        that are used in adcommon.h (backward compatible with version-1)
1114      - update all ad-optfiles (in tools/adjoint_options + few local to some
1115        verification exp) to switch to latest TAF version (currently 2.5.5);
1116        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
1117        out except for diva).
1118      - the major change with TAF version-2 is that both the differentiated
1119        routines and the forward routines (new) are returned as part of the TAF
1120        output source code. Update genmake2 accordingly.
1121      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
1122        with version-2 when compared to TLM or FWD gradient); other experiments
1123        output show minor changes (machine truncation level); update the few AD &
1124        TLM output with 12 matching digits only (some prior to version-2 switch).
1125    
1126    checkpoint64l (2013/08/05)
1127    o model/src:
1128      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
1129      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
1130        when using TAF but only if using OpenAD.
1131    o pkg/mom_common+fluxform+vecinv:
1132      - always set horiz. viscosity arrays to background value before calling
1133        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
1134        only when using variable horiz. viscosity (useVariableVisc=T);
1135      - simplify mom_vecinv.F (only 1 block for momViscosity).
1136    o pkg/mom_common: variable horiz. viscosity in NH code
1137      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
1138        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
1139      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
1140        useBiharmonicVisc & useVariableVisc.
1141      - fix old bug (already in 1rst implementation of variable horizontal viscosity
1142        in calc_gw.F, version 1.27, 2006/06/20):
1143        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
1144        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
1145      - change background horiz viscosity in vertical momentum (gW) to always be
1146        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
1147        any type of variable viscosity, e.g., viscAh/4Grid)
1148      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
1149        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
1150        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
1151        default viscAh,viscA4 is zero).
1152    o model/src:
1153      - extend length of drC & recip_drC from Nr to Nr+1.
1154    o Divided Adjoint (DIVA) with MPI:
1155      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
1156      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
1157        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
1158    
1159    checkpoint64k (2013/07/23)
1160    o tools/OAD_support:
1161      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
1162        and remove it from genmake2.
1163    o tools/build_options:
1164      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
1165        MPI_HEADER_FILES list (let genmake2 find the missing headers)
1166    o verification/halfpipe_streamice:
1167      - change to driving stress formulation; update both Fwd & AD output.
1168    o tools/genmake2 and Divided Adjoint with MPI:
1169      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
1170      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
1171      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
1172        Makefile, which is set by genmake2, and check which mpi-headers are needed.
1173        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
1174      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
1175    o testreport:
1176      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
1177        perform additional runs (number of additional runs is "add_DIVA_runs" taken
1178        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
1179    o verification/lab_sea (AD test):
1180      - change to test Divided Adjoint Run in this set-up (both standard AD test
1181        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
1182    o pkg atm_ & ocn_compon_interf:
1183      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
1184        staggerTimeStep implementation) and disable (retired) corresponding
1185        parameter.
1186    o pkg/offline:
1187      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
1188      - add S/R OFFLINE_CHECK to print offline parameter summary
1189        and stop if loading a file that is not used;
1190      - enable to calculate GMRedi tensor, KPP mixing and convective index
1191        when the corresponding file(s) is/are not specified (but pkg is used).
1192      - comment out resetting of monitorFreq (to endTime) since it still useful
1193        for monitoring CFL numbers and checking offline fields.
1194    o OpenAD:
1195      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
1196        smaller standard output) and generate new (smaller) output (on baudelaire
1197        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
1198    o model/src:
1199      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
1200        (where external_forcing_adjust was called) and change list of arguments;
1201      - merge external_forcing_adjust.F into external_forcing_surf.F
1202      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
1203        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
1204        previously in file "balance_relax.F", now removed); remove corresponding
1205        arrays in FFIELDS.h.
1206      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
1207        a hack for getting back surfaceForcingS (loaded from file) when using
1208        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
1209      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
1210        (was getting only 11 digits for AD-grad, due to different truncation
1211         error in AD code).
1212    
1213    checkpoint64j (2013/07/04)
1214    o pkg/offline:
1215      - to enable the use of other features with pkg offline (e.g., obcs),
1216        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
1217      - comment out "allowFreezing" (now active) in 2 offline testing exp.
1218    o pkg/exf ALLOW_RUNOFTEMP
1219      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
1220      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
1221      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
1222    o pkg/atm_phys:
1223      - allows to add some damping on uVel,vVel (strength only function of k).
1224    o verification, ad-tests:
1225      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
1226        global_ocean_ebm and offline_exf_seaice.thsice.
1227    o verification/halfpipe_streamice:
1228      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
1229        flux input boundary conditions to be ignored; a fix for this bug changed
1230        verification results for forward test.
1231      - add adjoint test.
1232    o pkg/ptracers:
1233      - allow to restart without SOM pickup (resetting SOM to zero).
1234    o pkg/gmredi:
1235      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
1236      - It uses mixing length theory and suppression by steering level effects to
1237        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
1238        to JPO, for more details).
1239      - It also uses the diffusivity to calculate an eddy induced streamfunction
1240        based on a PV closure (rather than a buoyancy closure as in GM).
1241      - New files added to pkg/gmredi:
1242        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
1243          induced overturning streamfunction (called from gmredi_calc_tensor)
1244        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
1245          for use in gmredi_k3d
1246        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
1247          the eddy diffusivity
1248    
1249    checkpoint64i (2013/06/18)
1250    o pkg/cheapaml:
1251      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
1252        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
1253        with pkg/cheapaml.
1254    o utils/python: add subpackage for cubed sphere function, first example is
1255        simple cs.pcol to plot 2D fields on a map
1256    o pkg/streamice:
1257      - This is a new package in MITgcm, which solves dynamic equations for ice
1258         sheets and ice streams
1259      - At the moment it is independent of atmosphere/ocean dynamics, or any
1260        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
1261        ed that this will change)
1262      - There is a new verification exercise that tests it, halfpipe_streamice,
1263        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
1264        rectangular embayment
1265      - halfpipe_streamice is forward-only for now, will have TAF test soon
1266      - for questions, email dgoldber@mit.edu
1267    o pkg/thsice:
1268      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
1269        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
1270      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
1271         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
1272      - allow precip from pkg/cheapaml to make snow over seaice.
1273    o pkg/cfc:
1274      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
1275      - remove atmos CFC 2-D arrays from common bloc (now local variables)
1276      - change some hard-coded constant to run time parameter for reading and
1277        and interpolating atmospheric CFC ; keep same default as previously.
1278      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
1279      - put arguments in standard order: myTime, myIter, myThid
1280      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
1281        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
1282      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
1283      - new routine to print summary of CFC params and check for consistency.
1284    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
1285      similar to thsice_advdiff.
1286      Note that for the B-grid case the routine parameters uc/vc are overwritten.
1287    o pkg/cfc:
1288      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
1289        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
1290      - fix interpolation of atmphspheric CFC between Sorthern and Northern
1291        hemisphere value.
1292    o pkg/seaice:
1293      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
1294    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
1295                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
1296      - requires an additional time level that is stored in the pickup
1297      - you can start with AB2 from a pickup without this time level with
1298        pickupStrictlyMatch = .false.
1299    
1300    checkpoint64h (2013/05/26)
1301    o pkg/cheapaml:
1302      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
1303        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
1304      - consistent treatment of uWind,vWind location: assume everywhere in
1305        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
1306        (Note: was already the case for Tair,Qair advection);
1307        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
1308      - compute diabatic forcing only in the interior (excluding overlap regions)
1309      - fill in array "Qsw" (for short-wave heating);
1310      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
1311        before any update (consistent with MITgcm state var diagnostics);
1312      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
1313        non periodic ; + adjusted for uWind,vWind (C-grid).
1314    o pkg/seaice:
1315      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
1316        add explicitly pkg/exf in experiments that currently use pkg/seaice.
1317      - allows to compile pkg/seaice without pkg/exf.
1318    o tools/OAD_support:
1319      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
1320        of array "ourStepOf" in function rvNextAction (revolve.F90).
1321    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
1322      - change pkg name (to be used with other atmospheric physics pkg)
1323        but by-pass CVS when making the new pkg so that we keep the CVS history.
1324    o pkg/offline:
1325      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
1326        (previously called from pkg/dic_surfforcing_init.F)
1327    o model/src:
1328      - re-order sequence of calls within packages_init_variables.F, using
1329        standard order, except for:
1330         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
1331         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
1332    o new pkg: atm_phys
1333      - add entry point and source code (previously in contrib
1334          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
1335        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
1336      - re-order sequence of calls within packages_readparms.F,
1337         packages_init_fixed.F and packages_write_pickup.F
1338        (but skip packages_init_variables.F because of TAF issues).
1339      - update contrib/*/atm_gray/ experiment.
1340    o pkg/seaice (ITD code):
1341      - simplify and fix the writing of pickup-files for ITD case
1342    o pkg/seaice (ITD code):
1343      - introduce floe size dependent lateral melt for ITD case;
1344      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
1345      - update seaice_itd experiment main output.
1346    o pkg/thsice:
1347      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
1348        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
1349        changed accordingly pkg/atm2d.
1350    
1351    checkpoint64g (2013/05/01)
1352    o pkg/exf ALLOW_RUNOFTEMP
1353      - if defined,  river and glacier runoff temperature can be read-in from
1354        runoftempfile; runoftempfile needs to have same format as runofffile
1355    o pkg/thsice (& pkg/bulk_force):
1356      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1357        for energy content of Precip + RunOff & Evap (like with pkg/exf).
1358      - change computation domain to always be the interior (without overlap).
1359      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
1360    o verification/tutorial_global_oce_biogeo:
1361      - add preliminary OpenAD setup (still has problems)
1362    o pkg/seaice:
1363      - turn some parameters for choosing the convergence criterion of
1364        the inexact Newton method (JFNK) into runtime parameters for convenience
1365      - clean up seaice_calc_viscosities.F: remove/retire two options for
1366        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
1367        the results of lab_sea/input because a division has been replaced by
1368        a multiplication with the reciprocal (sumNorm)
1369      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
1370        convergence of solver (changes results, of course), and to test some
1371        new features
1372    o model/src:
1373      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
1374      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
1375      - move forcing adjustment (balancing surface forcing) in specific S/R
1376        where might also be applied exchanges (if needed) to forcing arrays.
1377    o pkg/shelfice:
1378      - allow to specify the Ice-Shelf mass per unit area (instead of
1379        shelficeLoadAnomaly) and do the conversion from one to the other
1380      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
1381        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
1382        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
1383        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
1384      - update isomip experiment forward output (get machine truncation error
1385        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
1386    o verification/offline_exf_seaice:
1387      revise data.seaice in input.thermo and input_ad and update results accordingly
1388        HO = 0.2, SEAICE_areaLossFormula = 2,
1389        SEAICE_growMeltByConv = .TRUE.,
1390        SEAICE_doOpenWaterMelt = .TRUE.,
1391      Improve consistency with input.thsice and fix the spurious 500m ice corners
1392    o verification/global_ocean.cs32x15:
1393      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
1394        in icedyn (thsice+seaice-dyn) test and update output.
1395    o verification/offline_exf_seaice:
1396      - adjust list of tested variables (with testreport) and update
1397        standard test output with better slection of monitored fields.
1398    o pkg/cd_code:
1399      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
1400        experiment lab_sea.hb87
1401    o tools/genmake2:
1402      - change default makedepend from the system default to tools/xmakedepend:
1403        When no makedepend is specified, select tools/xmakedepend it the test pass,
1404        otherwise select the system default (if exist and pass the test) or
1405        try to build cyrus-makedepend ; stop if none of the 3 works.
1406    o pkg/exf & pkg/thsice:
1407      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1408        for energy content of Precip + RunOff & Evap. Assumes:
1409       1) Rain has same temp as Air.
1410       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
1411       3) Run-Off comes at the temp of surface water (with same Cp)
1412       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
1413        put directly into Latent Heat flux & should use water-vapor heat capacity.
1414       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
1415        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
1416    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
1417        (compile when SEAICE_ALLOW_JFNK is defined)
1418    o pkg/thsice:
1419      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
1420        implementation): move THSICE_AVE call after the advection (called directly
1421        from thsice_do_advect.F).
1422    o verification/global_ocean.90x40x15 and OpenAD:
1423      New experiment for OpenAD is identical to the one in input_ad except that
1424        multiDimAdvection=.FALSE.,
1425      There is still an issue with this.
1426    o pkg/thsice:
1427      - account for ice velocity (ocean relative velocity) in turbulent heat flux
1428        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
1429        and offline_exf_seaice (main test).
1430    
1431    checkpoint64f (2013/03/31)
1432    o verification/OpenAD:
1433      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
1434    o verification/isomip, pkg/shelfice and OpenAD:
1435      - add OpenAD setup to this exp and make shelfice package work with OpenAD
1436    o verification/tutorial_global_oce_biogeo:
1437      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
1438    o verification/offline_exf_seaice:
1439      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
1440    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
1441      - add OpenAD setup to this exp and make ptracers package work with OpenAD
1442    o pkg/seaice/seaice_evp.F:
1443       mask the asymmetric contribution of the ice-ocean stress (when
1444       the turningAngle is non-zero) over open water to avoid stripes
1445       in the EVP-solutions after many EVP-substeps. This does not change
1446       the verification experiment (because turningAngle=0 in that experiment),
1447       but will affect other EVP solutions with turningAngle.ne.0
1448    o verification, AD & TLM output:
1449      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
1450        additions and multiplications which affect results at machine truncation
1451        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
1452        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
1453        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
1454        digits of matching.
1455    o pkg/seaice:
1456       modify lsr-algorithm so that it vectorizes AND converges by using a
1457       "zebra" method: split vector loop into two with step size 2; this
1458       solves a general convergence problem for the JFNK solver on a vector
1459       computer. It has the potential to even improve convergence for
1460       non-vector machines, but it does change the results so it is turned
1461       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
1462       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
1463    
1464    checkpoint64e (2013/03/05)
1465    o pkg/ecco and several verification experiments:
1466       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
1467       from ecco package, and revert to unified routine in model/src/
1468       Adjust verification experiments accordingly, especially gloal_oce_llc90
1469       Should conclude long-standing work by Gael to reconsile the_main_loop with
1470       ECCO and will enable OpenAD's revolve loop in ECCO setup.
1471    o pkg/generic_advdiff:
1472      - implement compressible flow method for multi-dim advection (similar to
1473        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
1474        TAF generates many recomputations) to use it; no yet coded with implicit
1475        vertical advection.
1476      - change experiment advect_cs (new output) and advect_xy (same output)
1477        to test compressible flow multi-dim advection.
1478    o pkg/generic_advdiff:
1479      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
1480        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
1481    o pkg/seaice:
1482      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
1483        bug affects two verification experiments (lab_sea and lab_sea.hb87),
1484        recover old (wrong) results by setting noSlipFac = 2. in
1485        seaice_calc_strainrates.F;
1486      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
1487      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
1488        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
1489      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
1490    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
1491      - new subroutines seaice_lsr_tridiagu/v
1492      - introduce loop bounds i/jmin/max to be able to use a restricted
1493        additive Schwarz method, but not used for now.
1494      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
1495      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
1496    o OpenAD support
1497       Reorganize S/R call for overall time-stepping loop to facilitate
1498       OpenAD revolve loop replacement
1499       (new S/R main_do_loop.F)
1500    o model/src:
1501      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
1502      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
1503        ADAMS_BASHFORTH2.
1504    o pkg/cheapaml:
1505      - add new parameter (default=F, same as before) to disable full domain
1506        (including land) periodicity in X & Y dir.
1507      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
1508        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
1509        into single S/R CHEAPAML_TIMESTEP.
1510    
1511    checkpoint64d (2013/02/17)
1512    o pkg/monitor (angular momentum):
1513      - do not add Eta contribution to the total AM if using rigid-lid;
1514      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
1515      - horizontal discretisation: compute Zonal wind contribution separately for
1516        each component (instead of from cell centered averaged) and use the 4
1517        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
1518      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
1519        FreeSurf) if using vectorInvariant momentum.
1520    o model/src (horizontal grid):
1521      - move initialisation of all horizontal grid arrays to null value
1522        from specific horizontal grid S/R to main S/R INI_GRID;
1523      - add 2 new arrays to project model C-grid velocity on to zonal direction
1524        (similar to AngleCosC & -AngleSinC but at U and V point location) and
1525        compute them in S/R CALC_GRID_ANGLES.
1526    o pkg/seaice: replace a hard coded parameter by a runtime parameter
1527        SEAICE_JFNK_tolIter
1528    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
1529        preconditioner for JFNK (run LSR into the overlaps as far as possible,
1530        i.e OLx/y-2, but overwrite the solution in the overlaps)
1531      - extend loop range in seaice_calc_viscosity
1532      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
1533      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
1534      - slightly modify loops in tridiagonal solver lsr-preconditioner
1535      - by default remove the extra exchange in seaice_preconditioner with a
1536        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
1537      - modify offline_exf_seaice so that old results without RAS are reproduced
1538        for output.dyn_jfnk.txt
1539      in seaice_fgmres.F (unrelated to RAS)
1540      - add a cpp-flag option for a re-ordered mapping (potentially more
1541        efficient), but because this changes the results, turn it off by
1542        default
1543      - replace the save statement by local common blocks
1544    o utils/matlab:
1545      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
1546      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
1547        instead of local script "load_cs.m".
1548    o pkg/seaice:
1549      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
1550        to the scalarProductMetric and the unrolling. By chance this does not
1551        change the verification experiment, because of the particular domain
1552        decomposition
1553    o pkg/diagnostics:
1554      - change default missing_value from UNSET_RL to -999.
1555    o pkg/layers: improve vectorization of layers_fluxcalc.F
1556      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
1557        time spent in this routine by more than a factor of 3 on an NEC-SX8
1558      - step 2: replace search algorithm by a bisection algorithm found in
1559        Press et al. Numerical Recipes in Fortran. This algorithm can be
1560        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
1561        For now, use this algorithm only for TARGET_NEC_SX defined.
1562      - moved the search algorithm into a separate subroutine, that is kept
1563        within the same file for automatic inlining.
1564      - modified catching potential errors
1565    o pkg/ecco:
1566      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
1567    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
1568      - modifications for ALLOW_GENTIM2D_CONTROL
1569      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
1570      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
1571      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
1572      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
1573    o model/src:
1574      - account for moist thermodynamics in (dry) potential temperature equation;
1575        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
1576        and cpl_aim+ocn.
1577      - also switch to standard compiler (gfortran, was using ifort previously)
1578        for fizhi-cs experiments reference output.
1579    o pkg/ctrl:
1580      - 1st step toward generic time-varying control variable (2D) via CPP option
1581        ALLOW_GENTIM2D_CONTROL
1582      - note new namelist ctrl_nml_genarr in data.ctrl
1583    o verification/global_ocean.cs32x15:
1584      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
1585        thsice calling sequence and update "output.icedyn.txt" output file.
1586    o pkg/ptracers:
1587      - from Ryan A.: code to allow to restart a tracer at regular time interval
1588        specifying a reset frequency and a reset-phase (for each tracers).
1589    o pkg/thsice:
1590      - implement new sequence of calls for thsice+seaice:
1591          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
1592          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
1593      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
1594        in CPP_OPTIONS.h) to recover old sequence;
1595      - update diagnostics for Intermediate State thsice diagnostics: now filled
1596        just before advection (instead of just after advection in old sequence);
1597      - update output of experiment offline_exf_seaice (standard test);
1598      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
1599        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
1600    o pkg/aim_v23:
1601      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
1602      - use standard pkg/mdsio routines to read & write CO2 pickup file;
1603      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
1604      - Implement new sequence of calls for seaice advection (with thsice and
1605        seaice diffusion): do ice advection after ice-Thermodynamic (previously
1606        was done before); change aim_do_physics.F (split the bi,bj loops block);
1607      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
1608    o pkg/thsice:
1609      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
1610        where just seaice diffusion is used without seaice-dynamics.
1611    
1612    checkpoint64c (2013/01/18)
1613    o pkg/seaice:
1614      - add a parameter JFNKres_tFac that can replace JFNKres_t
1615        (= JFNKres_tFac*JFNKresidual before JFNK solver)
1616      - add a line search option to the JFNK solver
1617      - move update of u/vIce and computation of initial residual into a separate
1618        routine (same file); makes the code a little easier to read (?)
1619      - the line search requires computation of the residual and for some reason
1620        I cannot do the update of u/vIce at the beginning of the Newton loop
1621        without changing the results, so we move computation of the new residual
1622        also to the end of the Newton loop, even without the line search
1623    o pkg/mdsio:
1624      - write missing value (corresponding to undefined array value) to meta files;
1625        skip this if missing value is one (UNSET_RL would be a better value for the
1626        case of undefined missing value but it's current the default missing-value);
1627        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
1628    o pkg/exf & thsice:
1629      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
1630        diagnostics) even when SHORTWAVE_HEATING is #undef;
1631    o verification/cfc_example:
1632      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
1633        illustrate how to use it).
1634    o verification/offline_exf_seaice:
1635      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
1636        files to only one time-record.
1637      in input.thermo: narrow the 2 bands of low initial ice-concentration near
1638        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
1639        snapshot output; same mcPheePiston value as in thsice with
1640        surf-current=0.2m/s.
1641      in input.thsice: similar set-up as in input.thermo (channel with same seaice
1642        initial conditions).
1643    o verification/cfc_example:
1644      - update file "data" with more standard choice (default rotationPeriod,
1645        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
1646        set deltaTFreeSurf to deltaTtracer) and update the output.
1647    o pkg/layers:
1648      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
1649      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
1650    o verification/offline_exf_seaice:
1651      - set all {field}period to zero for constant-in-time forcing (not tested
1652        anywhere else).
1653    o verification/offline_exf_seaice:
1654      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
1655      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
1656    o model/src:
1657      - implement Finite-Volume method for (hydrostatic) presure gradient
1658        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
1659    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
1660      - In order to be compatible with the default EVP code, this requires changing
1661        the EVP code around a little; and because any small change immediately
1662        breaks the lab_sea.hb87 verification experiment, the reference output is
1663        updated two times (each time the remaining aggrement was only 2 digits):
1664        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
1665        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
1666        The adjoint test lab_sea.evp also needed to be updated.
1667      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
1668        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
1669        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
1670        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
1671        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
1672        kept obscure, because I need to test it a little more.
1673    o pkg/cheapaml:
1674      - fix few incorrect type (_RL/_RS) in subroutine calls.
1675    o pkg/seaice:
1676      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
1677        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
1678    o model/src:
1679      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
1680        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
1681        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
1682    o pkg/cheapaml:
1683      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
1684        update output of experiment cheapAML_box.
1685      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
1686        and set them only in one place (cheapaml_readparms.F).
1687      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
1688      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
1689        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
1690    o model/src/the_main_loop.F:
1691      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
1692    o pkg/seaice:
1693      - remove legacy branch code.
1694      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
1695    o verification/*/code*/SEAICE_OPTIONS.h:
1696      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
1697        SEAICE_CAP_HEFF).
1698    o pkg/cheapaml:
1699      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
1700        to load new forcing fields.
1701      - add missing "_d 0" where it's needed; + some editing (improve indentation).
1702      - remove switch to "-r8" compiler option (no longer needed) in verification
1703        cheapAML_box, keep same output (small trucation error differences).
1704    o verification/offline_exf_seaice:
1705      - add thermodynamics only test.
1706    o verification/cheapAML_box:
1707      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
1708        keep same output (same 14 digits for cg2d).
1709      - switch on "-r8" compiler option (some numerical values are missing
1710        the "_d 0") and update output (only 6 digits for cg2d were preserved).
1711    
1712    checkpoint64b (2012/12/24)
1713    o pkg/cheapaml:
1714      - remove un-used variables (Qnet,EmPmR) from pickup files.
1715      - store tendency of advected variables into cheapaml pickup file
1716        and fix the AB-2 restart.
1717    o verification/offline_exf_seaice and lab_sea adjoint:
1718      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
1719      - switch to 4 time steps in offline, consistent with lab_sea.
1720      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
1721      - update results after change of experiment seaice.
1722    o pkg/seaice:
1723      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
1724        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
1725        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
1726        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
1727    o model/src:
1728      - add run-time parameter to select CG2D solver minimum-residual solution
1729        (in case of a poor convergence).
1730    o pkg/seaice/seaice_lsr.F
1731      - move calculation of matrix coefficients into new
1732        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
1733        file; the main purpose of this change is to be able to reuse the code
1734        in S/R SEAICE_PRECONDITIONER
1735      - modify the computation of the residual so that the mass of sea-ice
1736        is not used twice; this simplifies the calculations, but since
1737        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
1738        not tested in testreport---this does not affect the testreport results.
1739    o verification/seaice_obcs:
1740      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
1741        verification/lab_sea/input.salt_plume; changes results/output.txt*
1742    o model/src:
1743      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
1744    o pkg/seaice:
1745      - improve description of parameters in seaice_fgmres.F and start
1746        cleaning up the code
1747      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
1748        second argument
1749      - add a metric based on grid cell area to SEAICE_SCALPROD; update
1750        results of offline_exf_seaice.dyn_jfnk
1751      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
1752    o pkg/aim_v23:
1753      - fix an other bug in dissipation heating (grid-cell area was missing).
1754    o model/src + pkg/seaice:
1755      - add global (multi-tile) linear solver for pair of tri-diagonal system
1756        along X and Y lines, respectively for U and V component.
1757        Note: 1) MPI and cube-exchange not yet coded.
1758            2) probably not accurate for poorly conditioned / large size problem.
1759      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
1760        default: not compiled and not used.
1761    o pkg/seaice:
1762      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
1763        introduce bi/bj loops and use global_sum_tile_rl instead of
1764        mpi_allreduce in seaice_fgmres.F
1765      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
1766      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
1767      - add a verification experiment for JFNK in offline_exf_seaice
1768    o verification:
1769      - change (for now, only fwd test) offline_exf_seaice experiment:
1770        use a re-entrant channel with idealized coastline (trapezoidal shape)
1771        at southern boundary to explore seaice dynamics and thermodynamics
1772        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
1773        secondary test (input.thsice) use thermodynamics only with SST relaxation.
1774      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
1775    o pkg/exf:
1776      - disable "sstExtrapol" when Nr=1
1777    o verification:
1778      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
1779        to test pkg/cheapaml.
1780    o pkg/aim_v23 & pkg/shap_filt:
1781      - fix dissipation heating (erroneous gravity multiplication factor).
1782    o pkg/seaice:
1783      - remove unused field pressPre from jfnk solver
1784      - rename two subroutines in seaice_preconditioner.F
1785    o eesupp/src:
1786       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
1787    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
1788       - remove wrong parts of the rhs and the lhs (were in there
1789         because I did not understand the concept of this preconditioner)
1790       - add an exchange between u- and v-sweep. This increases communication
1791         by a factor of two but improves the convergence of jfnk. Ideally,
1792         one would like the u- and v-sweep to be independent. So far within
1793         undocumented ifdefs
1794       - reorganize the extra computations for printing the residuals
1795    o tools/genmake2:
1796      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
1797        since it's not necessary (and was preventing to use MNC in some cases).
1798    
1799    checkpoint64a (2012/11/16)
1800    o pkg/autodiff:
1801      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
1802        autodiff_readparms.F no longer depends on calling order (within
1803        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
1804        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
1805        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
1806    o pkg/obcs:
1807      - adding tidal velocity forcing capability to obcs
1808        for usage example, see verification/seaice_obcs/input.tides
1809    o pkg/seaice:
1810      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
1811        SEAICE_LSRrelaxU/V
1812      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
1813    o pkg/aim_v23:
1814      - implement heating from friction (bottom friction and stratospheric drag).
1815    o pkg/shap_filt:
1816      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
1817        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
1818    o model/src:
1819      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
1820        time-constant addMass field from file (addMassFile);
1821      - support for heating due to friction (and Kinetic Energy dissipation):
1822        add option, run-time switch and 3-D field array + support code ; each pkg
1823        or S/R can add heating contribution (if there is a sink of KE); the sum is
1824        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
1825    o pkg/seaice:
1826      - complete merge of ITD code into seaice_growth.F
1827        from MITgcm_contrib/torge/itd/code/
1828        no verification so far, but Torge Martin tested
1829        "1-D test case and Beaufort set up;
1830        deliver okay results after 1 model year."
1831      - complete merge of SEAICE_SIZE.h into all relevant routines
1832      - move computation of eta at Z-points into calc_viscosities
1833        + introduce global field etaZ
1834        + add different methods for computing etaZ, for now the old
1835          method (simple averages of eta to Z-points) is hardwired
1836        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
1837          seaice_preconditioner
1838      - simplify computations for SEAICE_ZETA_SMOOTHREG
1839      - seaice_preconditioner:
1840        + replace one remaining press by pressLoc (mistake)
1841        + adjust printing of residuals
1842      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
1843        + add (SEAICE.h) and rename some counters (initiliased in
1844          seaice_init_fixed.F)
1845        + add _BEGIN/END_MASTER (myThid)  around print statements
1846        + print total number of iterations and failures over SEAICE_monFreq
1847          interval to STDOUT
1848      - move control over output-messages by fgmres to seaice_jfnk to save
1849        some operations
1850      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
1851        in order to make restarts with sol .ne. zero (fgmres with restarts)
1852        (seaice_jfnk.F, seaice_fgmres.F)
1853      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
1854        a serious convergence problem when open boundaries are involved
1855    o pkg/ggl90: fix computation of control volumes for the case of
1856      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
1857      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
1858    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
1859    o pkg/autodiff
1860      - Add inAdMode switch for SEAICEuseDYNAMICS:
1861        SEAICEuseDYNAMICSinAdMode
1862        (extend logic in ADAUTODIFF_INADMODE_SET)
1863    o pkg/seaice
1864      - Step 1 of merging ice-thickness distribution (ITD) code from
1865        MITgcm_contrib/torge/itd/ (author: Torge Martin)
1866        The code implements concept laid out in Thorndike et al. (1975);
1867        code is enabled via CPP flag SEAICE_ITD
1868        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
1869        code is not complete yet!!
1870      - SEAICE_SIZE.h now included in almost all seaice routines
1871    o verification (using seaice):
1872      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
1873        global_ocean.cs32x15.seaice ; update results.
1874      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
1875      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
1876        offline_exf_seaice (previously compiling B-grid).
1877    o pkg/exf:
1878      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
1879        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
1880        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
1881    o pkg/layers (adjust changes from Sept 19):
1882      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
1883        this allows to remove "layers_maxNum" dimension from all layers arrays.
1884    o pkg/layers (adjust changes from Sept 19):
1885      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
1886      - snap-shot extended to all type of layers (not just the 1rst type);
1887      - remove layers variables when corresponding CPP option is undef.
1888    o pkg/layers:
1889      - rename pkg/layers variable and add new output (layer exist & un-weighted
1890        velocity in layer)
1891    o pkg/seaice:
1892      - simplify (?) ocean-drag coefficent computations by using
1893        the same routine in all three solvers (saves some code lines)
1894      - remove global fields DRAGA and DRAGS from C-grid code and
1895        declare them locally in lsr.F (the only place where they are
1896        still used)
1897      - update AD output of lab_sea.evp (very sensitive anyway).
1898    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
1899      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
1900      and SEAICEuseJFNK=.true. A few things to note:
1901      - involves a FGMRES, that is parallel but very inefficient,
1902        because of many scalar products (global sums) in the Gram-Schmidt
1903        orthogonalization method. Needs to be replaced. Original code
1904        from J.-F. Lemieux
1905      - preconditioner for FGMRES is a stripped down version of LSOR
1906      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
1907        preconditioner. For the preconditioner, the default is set to 10.
1908      - Jacobian times vector is computed with finite differences
1909      - marginally related to JFNK-solver: add a smooth regularization for
1910        zeta with tanh that will improve convergence (Lemieux and Tremblay,
1911        2009) for any implicit solver (not implemented for EVP because EVP
1912        does not need this regularization in the first place). Define
1913        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
1914    o eesupp/src:
1915      - check in genmake2 that intrinsic S/R flush is available.
1916      - add S/R to flush IO unit (if intrinsic S/R flush is available)
1917      - flush standard & error msg unit before MPI termination
1918      - if debugMode, flush IO unit after printing msg
1919    o pkg/ctrl:
1920      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
1921        to ctrl_set_unpack_xyz.
1922    
1923    checkpoint64 (2012/10/09)
1924    o pkg/shelfice
1925      - in mom_fluxform.F, mom_vecinv.F:
1926        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
1927        Bug fix KappaRU -> KappaRV
1928        does not change verification/isomip but may change other setups
1929        (presumably constant KappaRU=KappaRV)
1930      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
1931    o pkg/obcs:
1932      - fixed some indexing bugs in obcs_seaice_sponge.F
1933      - added obcs relaxation subroutines for HSALT and HSNOW
1934      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
1935    o pkg/seaice:
1936      - add "multicategory" parameterization for snow in analogy to ice,
1937        default is off for now.
1938    o pkg/obcs:
1939      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
1940        see verification/seaice_obcs/input.seaiceSponge for example application.
1941      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
1942        index setting by master-thread. This fix multi-threads Pb in previous modifs.
1943    o pkg/layers :
1944      - add diagnostics to pkg/layers
1945      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
1946        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
1947    o pkg/generic_advdiff/gad_implicit_r.F :
1948      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
1949    o pkg/seaice/seaice_growth.F:
1950      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
1951    o pkg/obcs:
1952      - change default setting of OBCS_UVICE_OLD from defined to undef;
1953      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
1954        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
1955      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
1956      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
1957        with Southern & Western OB at a tile edge (at least in a simple set-up).
1958    o pkg/obcs:
1959      - change settings of OB index in case OB coincides with tile edge (shared by
1960        2 tiles), so that common OB location is registered by both tiles (instead of
1961        only 1). However, for Southern and Western OB, index value = 0 is not
1962        recognized as valid OB index (=default null value) and needs to be fixed.
1963      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
1964      - new parameter "OB_indexNone" for null index value (for now, still zero)
1965        to replace hard-coded null index value of zero.
1966    o pkg/exch2:
1967      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
1968        always check buffer-size (but outside the loop); move checking for valid
1969        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
1970        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
1971    o pkg/ctrl (pack & unpack):
1972      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
1973        (locally defined) for different variables (+ remove the variable-specific
1974        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
1975        (to be extended to other local file names in ctrl.h).
1976    o pkg/flt:
1977      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
1978    o pkg/mdsio:
1979      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
1980    o tools/genmake2:
1981      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
1982        (added by Alistair in version 1.51 for building without make depend);
1983      - remove Header files list (H_SRC_FILES) from the dependence of targets
1984         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
1985        place in version 1.23): this save going through staf when unrelated header
1986        file has been modified.
1987       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
1988        "make depend" step, still need to do "make links" before "make adtaf".
1989    o eesupp/src (+ few pkg src files) & genmake2:
1990      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
1991      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
1992      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
1993         upper/lower case ; account for space between "#" and undef/define)
1994    o pkg/flt (with exch2):
1995      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
1996      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
1997    
1998    checkpoint63s (2012/09/05)
1999    o pkg/ecco:
2000      - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.
2001      - add more relevant #ifdef ALLOW_SMOOTH ones.
2002      - sort out useAtmWind, useSMOOTH, ctrlSmoothCorrel2D.
2003    o pkg/ctrl:
2004      - CTRL_OPTIONS.h : document CPPs related to smoothing; ALLOW_SMOOTH_CORREL2D/3D,
2005        ALLOW_CTRL_SMOOTH, ALLOW_SMOOTH_CTRL2D, ALLOW_SMOOTH_CTRL3D.
2006      - ctrl.h : document run time params doInitXX, doMainPack, doMainUnpack, doPackDiag,
2007        doSinglePrecTapelev (audodiff param!), ctrlSmoothCorrel2D (new) and
2008        ctrlSmoothCorrel3D (new).
2009        The added ctrlSmoothCorrel2D/3D replace the old ALLOW_SMOOTH_CORREL2D/3D CPP.
2010      - ctrl_readparms.F : initialise ctrlSmoothCorrel2D/3D and read from namelist.
2011      - ctrl_init.F ctrl_pack.F ctrl_unpack.F : switch off ustress/vstress
2012        controls when useAtmWind, and vice versa.
2013      - ctrl_map_ini_ecco.F : UVEL0, VVEL0, edtaux, edtauy cannot be smoothed as tracers.
2014      - ctrl_get_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL2D with
2015          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel2D, IF useSMOOTH.
2016      - ctrl_map_ini_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL3D with
2017          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel3D, IF useSMOOTH.
2018      - ctrl_set_pack_xy[z].F, ctrl_set_unpack_xy[z].F:
2019        replace ALLOW_SMOOTH_CORREL2D/3D brackets with ctrlSmoothCorrel2D/3D.
2020    o pkg/smooth:
2021      - remove un-necessary includes.
2022      - remove ALLOW_SMOOTH*D and ALLOW_SMOOTH_CORREL*D brakets.
2023        Those CPP options were never defined, and not necessary.
2024    o model/src:
2025      - fix CPP brackets in ini_mixing.F (GM_background_K belongs to gmredi).
2026      - standard treatment of useSMOOTH.
2027    o pkg/autodiff:
2028      - add LOGICAL useGGL90inAdMode, useGGL90inFwdMode, useSALT_PLUMEinAdMode,
2029        useSALT_PLUMEInFwdMode allowing to switch off ggl90 and salt_plume adjoint.
2030    o pkg/exch2:
2031      - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)
2032        + start to remove ALWAYS_USE_MPI in source code that TAF does not see.
2033      - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag
2034        and tiles to process mapping.
2035      - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)
2036        moving /EXCH2_FILLVAL_RX/ & /W2_EXCH2_COMMFLAG/ to W2_EXCH2_TOPOLOGY.h;
2037        rename "exch2_tProc" to "W2_tileProc" and move seting of e2FillValue_RX
2038        from w2_eeboot.F to w2_readparms.F.
2039    o eesupp/src:
2040      - set exchNeedsMemsync & exchUsesBarrier according to "usingMPI" (instead of
2041        ALWAYS_USE_MPI) + moved from ini_communication_patterns.F to eeset_parms.F;
2042        also move setting of exchCollectStatistics from exch_init.F to eeset_parms.F
2043      - in eedie.F and all_proc_die.F, always call MPI_FINALIZE when ALLOW_USE_MPI
2044        is defined (remove condition on usingMPI) to match cases where MPI_INIT
2045        has been called.
2046      - fix bug I put in previous modif of exch_sm_3d_rx.template (not much used);
2047      - change default (non-MPI) value of myPid (from 1 to 0) to match MPI settings
2048        (so that on 1 proc, get same myPid independently of usingMPI)
2049      - add a stop if multi-procs but usingMPI=F ; stop also if usingMPI=T and
2050        useCubedSphereExchange with EXCH-1 (safer).
2051      - add "if usingMPI" where it was missing (+ start to remove ALWAYS_USE_MPI).
2052    o pkg/ggl90:
2053      - fix bug in filling corner mask array "mskCor" (FILL_CS_CORNER_TR_RL call)
2054        used in ALLOW_GGL90_SMOOTH code.
2055    o pkg/flt:
2056      - fix typo in FLT_WITHOUT_Y_PERIODICITY (the effect was to ignore stopping
2057        floats at the Southern end of the domain).
2058    o eesupp/inc:
2059      - add a list of CPP-options which can be set by Makefile (DEF_IN_MAKEFILE.h);
2060        but not used (and not to be used) anywhere, just for documentation.
2061    o pkg/autodiff, exf, ptracers & seaice (AD & TL output):
2062      - comment out the very nasty "writeBinaryPrec = writeStatePrec" line, since:
2063        a) can damage previously written records in any other multi-record files.
2064        b) if needed, can easily do it cleanly, by calling S/R WRITE_REC_3D_RL/S.
2065    o tools/genmake2:
2066      - define variable MAKE within Makefile and use it in place of 'make';
2067      - update AD_CONFIG.h (if needed) before building any of the executable
2068        (forward, adjoint or tangent-lin); this involves a 2nd invocation of make;
2069        and add the usual #ifndef/#define AD_CONFIG_H in AD_CONFIG.h;
2070      - always print usual warning comment 'this file is automatically generated'
2071        from script convert_cpp_cmd2defines (+ remove this warning from genmake2).
2072    o pkg/cheapaml:
2073      - updated to correspond to the code used in accepted paper (Nico Wienders).
2074    o pkg/exf:
2075        added run time switch useAtmWind to replace ALLOW_ATM_WIND cpp switch.
2076        ALLOW_ATM_WIND now just sets the useAtmWind default (see exf_readparms.F)
2077        and force defines ALLOW_BULKFORMULAE (EXF_OPTIONS.h).
2078    o pkg/exf, autodiff, ctrl, ecco and seaice:
2079        remove ALLOW_ATM_WIND brackets, or replace them with useAtmWind ones.
2080    o pkg/ctrl, ecco:
2081        allow to compile both ALLOW_U/VSTRESS_CONTROL and ALLOW_U/VWIND_CONTROL.
2082        Depending on useAtmWind, one is inactive, and the other is active (see
2083        exf_getffields.F/exf_getsurfacefluxes.F).
2084    o tools/genmake2:
2085      - improve error msg when failing in 2nd test of check_for_broken_Ff
2086      - fix option '-makefile' short-name (-mf according to genmake2 -help)
2087      - source local config file "genmake_local" just after processing the genmake2
2088        command arguments (previously done before processing arg).
2089    o pkg/grdchk:
2090      - add a call to TURNOFF_MODEL_IO for Tangent-Linear run (in this case, call
2091        to this routine from cost_final has been dropped in g_cost_final)
2092      - improve printed information (more explicit msg, no longer using "print *,"
2093         fix fcpertminus printed value).
2094    o model/src:
2095      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
2096        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
2097        this prevents getting cost-funct reset in adinitialise_varia recomputations.
2098    o pkg/dic:
2099      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
2100        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
2101    o pkg/grdchk:
2102      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
2103      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
2104    o pkg/autodiff/ctrl/grdchk :
2105      - attempt to sort out what works and what does not,
2106        with regard to I/O, and to warn/stop accordingly.
2107    o pkg/grdchk:
2108      - attempt to fix grdchk in the case of useSingleCpuIO.
2109      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
2110       statements were moved from grdchk_main.F and into
2111       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
2112      - a global sum is applied to record numbers icvrec/layer
2113       out of grdchk_loc so that they be passed to I/O routines.
2114    o pkg/smooth:
2115      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
2116        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
2117    o verification/testreport:
2118      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
2119      - can also use compressed (gzip) reference output file;
2120      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
2121        to be easier to collect by testreport.
2122      - update existing TLM output (half out-of-date by more than 3 yrs).
2123      - report NETCDF & LAPACK settings (from genmake2) in output dir.
2124      - report run-time in each individual summary (previously only for AD test);
2125        for TLM test, add also TAF version.
2126      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
2127    
2128    checkpoint63r (2012/08/15)
2129    o tools/genmake2:
2130      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
2131    o pkg/ecco/ecco_cost_final.F :
2132      - fix fc print statements (to stdout and costfunction0000) so
2133        that the printed value is always after the global sum.
2134    o pkg/seaice/seaice_dynsolver.F :
2135      - fix ice strength assymptote at SEAICE_area_max<1
2136        (no change for the standard case of SEAICE_area_max=1)
2137    o some cleaning:
2138      - pkg source files: ensure that all *.F files from each pkg included the
2139        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
2140        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
2141        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
2142        includes;
2143      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
2144      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
2145        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
2146        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
2147      - update option-file CPP_OPTIONS.h of all AD experiments:
2148        * no longer include PACKAGES_CONFIG.h ;
2149        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
2150        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
2151          including ECCO_CPPOPTIONS.h).
2152    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
2153      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
2154        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
2155        not necessary accurate).
2156      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
2157        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
2158        deliberately break compilation (a remainder that it needs to be customized)
2159      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
2160      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
2161      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
2162    o tools/genamke2:
2163      - check for lapack.
2164    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
2165      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
2166        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
2167        from both packages.
2168      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
2169      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
2170      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
2171        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
2172    o pkg/cost : add comments to explain special and/or untested setups.
2173    o pkg/exf:
2174      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
2175        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
2176    o verification/*/code_ad:
2177      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
2178      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
2179      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
2180        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
2181    o pkg/seaice :
2182      - added possibility to change ice strength/PRESS0 relationship to
2183        HEFF, according to the following run time parameters
2184        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
2185        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
2186        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
2187    o pkg/ggl90 :
2188      - added run time flag mxlSurfFlag to include the code that ensure
2189        mixing between first and second level (previously included as a comment)
2190    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
2191      - add test of newly added dumpAdByRec=T option where
2192        we write all records to one file per variable.
2193    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
2194      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
2195        to check that this code is ok with taf and compiles in adjoint.
2196    o pkg/autodiff :
2197      - added run time param dumpAdByRec : ad dump format switch.
2198        If true then write all records to one file per variable.
2199        Else write one file per record (remains the default).
2200      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
2201    o pkg/seaice:
2202     - Added SEAICEuseTILT run time switch : if set to
2203       false then omit the tilt term in seaice dynamics.
2204     - Fix free drift calculation.
2205    o pkg/shelfice:
2206      When initializing SHELFICEDragQuadratic, set default to be
2207      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
2208      but retain option to set it independently
2209      (inconsistenty spotted by Veronique Dansereau)
2210    o eesupp/inc:
2211      - in EEPARAMS.h, add real-type constant for some frequently used simple number
2212         (0,1,2,1/2), with name explicitly referring to RS/RL type.
2213    o model/src:
2214      - move balancing of relaxation terms to new S/R balance_relax.F.
2215    o pkg/autodiff:
2216      re-write active I/O high-level (control) S/R:
2217      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
2218      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
2219      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
2220        MDS_READ/WRITE_FIELD); change loops to multi-threads.
2221      - update and merge active_file_control_slice.flow into active_file_control.flow
2222      - update the calls in lower level S/R (active_file.F, active_file_g.F and
2223        active_file_ad.F) keeping the argument list and function unchanged.
2224      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
2225        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
2226      - new low-level active I/O routines, one for each type (RL/RS), for active var
2227        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
2228        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
2229        right type.
2230    o autodiff and RS=real*4:
2231      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
2232        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
2233      - change argument type of 3-D mask argument to _RS to match type in the call
2234        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
2235    o pkg/thsice:
2236      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
2237      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
2238        fresh-water flux: uniform correction or proportional to local precip.
2239    o pkg/ctrl:
2240      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
2241      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
2242                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
2243      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
2244    
2245    checkpoint63q (2012/07/30)
2246    o pkg/autodiff:
2247      note about monitor and snap-shot of ad-variables:
2248      a) need to apply ADEXCH before monitor or output of ad-vars to include
2249       overlap contributions (was done for adjDump but missing for monitor).
2250      b) since ADEXCH implies adding overlap values to interior array, machine
2251       truncation error is expected when adding an ADEXCH call in the middle of
2252       the time-stepping (although mathematically identical).
2253      modifs:
2254      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
2255        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
2256      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
2257        apply ADEXCH before monitor or snap-shot of ad-variables:
2258           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
2259      - implement new method (copy+adexch) for snap-shot and monitor of main model
2260        ad-vars (initially not used by default -> output unchanged).
2261      - change default (set to 2) to use new method and update few output_adm.txt
2262        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
2263        and both tutorial_tracer_adjsens tests).
2264      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
2265        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
2266    o pkg/ctrl:
2267      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
2268      generic control variables via
2269      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
2270      Only required customization should be S/R ctrl_map_ini_genarr.F
2271      (routine in repository contains example)
2272    o pkg/exf:
2273      - fix and refine checking of surface-relaxation setting when using EXF
2274    o verification (adjoint exp):
2275      - reduce length of simulation by half for experiment global_ocean.cs32x15
2276        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
2277    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
2278      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
2279        of KE that can occur with aggressive optimization
2280      + put quadratic bottom drag calculation in separated loops (only done if
2281        using bottomDragQuadratic)
2282    o model/src: CG2D_NSA
2283      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
2284         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
2285      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
2286         change cg2d residual target to be expressed in Wunits (=> do not normalise
2287         RHS ; this fix global_max Pb with TAF); update output.
2288    o verification/tutorial_tracer_adjsens:
2289       improve parameter consistency (and get rid of warnings):
2290       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
2291       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
2292       - use staggerTimeStep (for stability) in som81; use default rotation period.
2293    o pkg/exch2:
2294      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
2295        reset to 0 = 1 long line in X)
2296    o pkg/mdsio:
2297      - fix reading of dimensions from meta file for large-size domain
2298    o model/src:
2299      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
2300      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
2301        Cubed-Sphere Exch with CS-corners inside the domain;
2302        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
2303        globalArea and to set hasWetCSCorners.
2304      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
2305        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
2306      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
2307        useCDscheme and useCubedSphereExchange).
2308    o pkg/seaice/seaice_growth.F :
2309      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
2310        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
2311        when the previous code was not correct.
2312      - in all cases diagnoze the boundary condition mismatch to SIaaflux
2313      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
2314        that term to QNET (essentially to set the melt/freeze water to 0degC).
2315        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
2316    o verification/global_ocean.cs32x15/input.seaice :
2317      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
2318      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
2319      - update results (output.seaice.txt) accordingly.
2320    o verification/lab_sea/input/data.seaice :
2321      - remove SEAICEheatConsFix, which is now be tested
2322        in global_ocean.cs32x15. The presently coded fix
2323        is only consistent with real fresh water + nlfs.
2324      - update results (output.txt) accordingly.
2325    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
2326    o AD_CONFIG.h file:
2327      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
2328      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
2329        add it explicitly in each fortran src file where it is needed.
2330        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
2331        thus introducing potentially wrong dependency; therefore, better to include
2332        it only where it's really needed, and after any other included OPTIONS file
2333        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
2334        or ALLOW_TANGENTLINEAR_RUN).
2335    
2336    checkpoint63p (2012/07/06)
2337    o pkg/autodiff:
2338      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
2339      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
2340        which are now read from new parameter file "data.autodiff" (inAdExact
2341        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
2342      - add file "data.autodiff" in all verification/*/input_ad/ directories.
2343      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
2344        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
2345    o verification/tutorial_tracer_adjsens/
2346      - add extra sub-verification which uses "SOM" advection scheme
2347        (2nd Order-Moment Advection Scheme, Prather Limiter) with
2348          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
2349        and in data:
2350          multiDimAdvection=.TRUE.,
2351          tempAdvScheme=81,
2352          saltAdvScheme=81,
2353    o model/src:
2354      - introduce ALLOW_BALANCE_RELAX which allow the removal
2355       of the global mean of relaxation terms by setting
2356       balanceThetaClimRelax and balanceSaltClimRelax
2357      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
2358       This case is now treated appropriately in seaice_growth.F
2359    o pkg/seaice:
2360      - do balanceEmPmR and balanceQnet based on the net fluxes
2361        (SItflux) that enter the ocean+ice system rather than QNET
2362        and EMPMR. Works best in real fresh water.
2363      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
2364        out of the diagnotics bloc, and stored in global arrays.
2365    
2366    checkpoint63o (2012/06/29)
2367    o vertical mixing schemes:
2368      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
2369      - replace computation of density (in Function STATE1, opps_calc.F) by a call
2370        to S/R FIND_RHO_SCALAR
2371      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
2372        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
2373        affects output (vermix.ggl90) at truncation level.
2374    o testreport:
2375      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
2376        (nSx,nSy) for the number of threads (from eedata.mth)
2377    o model/src:
2378      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
2379        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
2380    o verification/tutorial_tracer_adjsens/
2381      - compile with ALLOW_CG2D_NSA
2382      - run with nonlinFreeSurf=3
2383      - update reference output_adm.txt
2384    o tools/genmake2:
2385      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
2386        refine usePROFILES switching off (only when NetCDF is not available).
2387    o verification (atmospheric set-up):
2388      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
2389    o pkg/profiles : refine profiles and files handling.
2390    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
2391    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
2392      - changes to use model/src/the_main_loop.F rather than the ecco version
2393        in ecco type adjoint runs.
2394    o model/src:
2395      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
2396      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
2397      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
2398    o model/src:
2399      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
2400        update output of test experiment bottom_ctrl_5x5.
2401    o pkg/generic_advdiff:
2402      - implement vertical bi-harmonic diffusion (for now, only for T & S and
2403        only explicitly).
2404    o verification/bottom_ctrl_5x5/
2405      update reference output (results changed quite some time ago,
2406      not sure when; but new reference results look ok in terms of grdchk)
2407    o verification/1D_ocean_ice_column/
2408      For verification purposes, the exact adjoint rather than an approx.
2409      should be used (e.g., to comare against F.D. or TLM).
2410      removed autodiff_inadmode*_ad.F routines in code_ad/
2411      Update results/ accordingly.
2412    o pkg/cal:
2413      - change cal_getdate.F so that output date is function of input time only
2414        (less ambiguous, not mixed up with input iteration number).
2415      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
2416    o pkg/diagnostics:
2417      - implement calendarDumps also for stats-diags
2418      - implement calendarDumps also for snap-shot output (negative freq)
2419      - for now, ignores calendarDumps if non-zero phase-lag.
2420    
2421    checkpoint63n (2012/06/04)
2422    o model/src:
2423      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
2424        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
2425      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
2426        similar to calc_r_star.F); update results of experiment internal_wave and
2427        tutorial_global_oce_in_p (affected @ truncation level).
2428    o pkg/shelfice:
2429      - add parameterisation of advective-diffusive flux into the ice shelf
2430        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
2431      - simply eps3/3a computation
2432    o eesupp:
2433     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
2434       between tiles, just fill-in edges assuming locally periodic subdomain) and
2435       add corresponding exchange subroutines (EXCH0);
2436     - new CG-solver version (_EX0) for disconnected-tiles special case.
2437    o model/src (CG-solvers):
2438     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
2439       (similar final residual output and max-Iter number as with standard version);
2440     - allows to store and use lowest-residual solution (standard & _SR versions);
2441     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
2442     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
2443    o eesup/src:
2444     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
2445       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
2446    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
2447    
2448    checkpoint63m (2012/04/27)
2449    o pkg/shelfice:
2450     - account for partical cells in surface level below ice-shelf for hydrostatic
2451       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
2452    o ad test experiments:
2453     - update and rename to "ad_optfile.local" local AD-optfile specific to a
2454       particular adjoint verification experiment (in verification/*/code_ad/)
2455    o pkg/seaice & pkg/exf:
2456     - Part two of ECCO-CLIVAR code merges.
2457       Completes merge of seaice area relax. code.
2458       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
2459       to be set in EXF_OPTIONS.h since this pkg controls its I/O
2460       (and avoids second CPP option in SEAICE_OPTIONS.h)
2461     - change default value of costIceStart & costIceEnd to a valid date.
2462     - add snowPrecip to HSNOW in seaice_growth
2463    o pkg/ptracers:
2464     - move ptracers summary and setup check into separated S/R ; add a check for
2465       valid PTRACERS_Iter0 value (error+stop or just warning).
2466    o pkg/cal (+ pkg/ecco):
2467     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
2468       as input; and for AD, unless both are not differentiable (e.g., k index)).
2469    o model/src:
2470     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
2471       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
2472       temporary set to usingZCoords value (to be changed to F when using shelfice).
2473     - hydrostatic pressure: implement partial cell near the surface also for
2474       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
2475       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
2476    o pkg/ctrl/ctrl_init.F:
2477     - add a formal parameter to s/r ctrl_init_rec to print
2478       xx_$(ctrl_valiable)_file for easier debugging
2479     - move call of cal_* routines into the if-block where they are really
2480       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
2481       to specify a startdate
2482    o pkg/seaice:
2483     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
2484       global_ocean.cs32x15/code versions).
2485     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
2486       verification experiment global_ocean.cs32x15.seaice and update results.
2487    o pkg/exf:
2488     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
2489       (according to useExfYearlyFields).
2490    o pkg/cal:
2491     - move calendar setting & summary (previously in cal_readparams.F) into new
2492       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
2493       length of the simulation is set (after SET_PARMS call); This is an attempt
2494       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
2495     - For safety: keep a record of pkg/cal parameter settings status
2496               to allow to STOP if one pkg/cal S/R is called too early.
2497     - add a stop in all basic pkg/cal subroutines if called before setting is done.
2498     - modify cal_getdate.F: stop when nothing was returned;
2499       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
2500       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
2501    
2502    checkpoint63l (2012/04/04)
2503    o pkg/bbl:
2504      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
2505        update global_with_exf output.yearly.txt file.
2506    o pkg/cal:
2507      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
2508      - remove 2 unsused and very short (1 line only) functions ;
2509      - remove unsused subroutines from AD-Diff list.
2510    o model/src:
2511      - start to implement clean wait to stop in initialization S/R (config_check.F,
2512         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
2513    o folowing PRINT_MESSAGE changes:
2514      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
2515  o pkg/bbl:  o pkg/bbl:
2516    - modification so it can work with z*    - modification so it can work with z*
2517    - replace deltaT with dTtracerLev(k) for asynchronous time stepping    - replace deltaT with dTtracerLev(k) for asynchronous time stepping

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