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revision 1.1596 by gforget, Mon Feb 13 23:45:41 2012 UTC revision 1.2097 by mlosch, Fri Nov 28 14:19:20 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 pkg/seaice :  o pkg/autodiff
8    - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula.EQ.    - add extra exchanges in addummy_in_steppging also for mnc output
9    1 or 2, using newly added run time parameter SEAICE_availHeatTaper.  o pkg/seaice:
10      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
11        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
12    o pkg/obcs:
13      - add option to specify domain-connected piece Id along OB though files
14        (for now, only used to diagnose PhiVel; default =1 -> global correction)
15      - modify obcs_diag_balance.F to process each connected-part separately;
16        exclude OB where Id = 0 but keep the full divergence there (-> constant
17        Psi along this portion of OB and all inflow derived from grad(Phi))
18      - add example of OB-conect files in verification/so_box_biogeo/input.
19    o pkg/diagnostics:
20      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
21      a) use non zero matrix element across OB and solve for Phi 1 grid point
22         outside OB (i.e, where tracer OBCS are applied).
23      b) global imbalance of inFlow/outFlow across OB: instead of modifying
24         velocity across OB, spread it uniformly along the OB in the RHS.
25    
26    checkpoint65g (2014/11/19)
27    o pkg/diagnostcis:
28      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
29    o pkg/my82,pp81,kl10:
30      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
31        field diffKr as background diffusivity to set minimum diffusivity value.
32    o pkg/seaice:
33      - add new parameter SEAICEuseEVPrev (for revisited EVP by
34        Bouillon et al 2013)
35      - add SEAICE_evpAlpha/Beta to namelist
36      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
37        involve trivial re-ordering of divisions/multiplications that should not
38        have any effects, but ... they do change the results of lab_sea.hb87 so
39        that only 2 digits of agreement remain, in line with the general
40        instability/fragility of the evp-code. For now, I do not care and just
41        update the verification experiment
42    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
43      - remove xx_genarr2d_numsmooth etc
44      - use xx_genarr2d_preproc etc instead
45      - carry out smooth_correl2D at initialization stage rather than during
46        time stepping.
47      - get smoothOpNb from xx_gentim2d_preproc
48    o global_oce_cs32 :
49      - add test of generic ecco capabilities.
50    o pkg/exf/exf_getsurfacefluxes.F :
51      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
52    o pkg/ctrl,ecco :
53      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
54        is defined.
55    o pkg/seaice: add diagnostics for Delta (deformation parameter)
56    o model/src:
57      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
58        diffusivity (background) is specified but ignored.
59    o verification:
60      - in testreport, convert hostname to lower case for default output dir name
61    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
62    o pkg/dic: add modifications from Hajoon:
63      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
64      - light attenuation: add self-shading effect by climatological Chlorophyll
65        (read from file).
66    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
67        compiles when SEAICE_ALLOW_DYNAMICS is undefined
68    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
69        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
70        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
71        approach where CPP_OPTIONS.h includes an omnipotent
72        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
73    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
74        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
75    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
76        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
77        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
78    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
79      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
80      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
81      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
82      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
83    o pkg/ctrl,ecco,exf :
84      - remove variables associated with NON-generic costs,
85        unless ECCO_CTRL_DEPRECATED is defined.
86      - remove NON-generic NON-obcs controls,
87        unless ECCO_CTRL_DEPRECATED is defined.
88    o pkg/ctrl : added ctrl_local_params.h
89    o pkg/ecco : added ecco_local_params.h
90    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
91        experiments, which will progressively be removed once the
92        experiments are revised to use only generic controls/costs.
93    
94    checkpoint65f (2014/10/13)
95    o pkg/ctrl, ecco, seaice : minor changes in headers
96    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
97        cost function and control capabilities added since checkpoint65c.
98    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
99    o pkg/ecco: increase modularity and improve logic
100      - ecco_toolbox.F (new) : basic operations that are often used,
101        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
102        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
103      - cost_gencal.F (new) : determine filnames and records.
104      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
105      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
106        and exploit the above functions leading to more compact code.
107      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
108      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
109        using_ers, using_gfo, using_mdt is now only defined within gencost)
110    o pkg/ecco: extend generic cost capabilities
111      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
112        capabilities via gencost_preproc (+ _c,_i,_r related params),
113        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
114        gencost_outputlevel arguments to cost_generic
115      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
116        and active_read, making room for gencost_preproc to take effect.
117        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
118      - pkg/ecco/cost_generic.F :
119        compute and store misfit maks*(model-data) in localdif that is
120        then used in cost and for output, output misfit if outlev.GT.0
121      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
122        rather gencost_barfile for deciding whether to write barfile
123      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
124      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
125        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
126      - pkg/ecco/ecco_summary.F : report gencost variables
127      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
128    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
129    o pkg/ecco: internal re-organization
130      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
131        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
132        mv relevant variables definition from ecco_cost.h to ecco.h,
133        make sure gencost routines only include ecco.h)
134      - throughout : add missing CCP switches, rm unused variables,
135        and rm un-necessary CPP switches
136      - throughout gencost routines : replace modelstartdate with
137        gencost_startdate when needed
138      - cost_bp_read.F : use arguments, instead of common blocs
139        so that it can be used also by (new) cost_gencost_bpv4.F
140      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
141      - ecco_phys.F : compute etanFull
142      - ecco_readparms.F : rename using_topex as using_tpj, add
143        bpv4-grace to gencost list, initialize added parameters
144      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
145    
146    checkpoint65e (2014/09/28)
147    o pkg/obcs:
148      - replaced the just-added CPP options with run-time variables
149        (see pkg/obcs/OBCS_PARAMS.h for details)
150    o pkg/obcs:
151      - add additional CPP options for sponge boundary layers
152        (see pkg/obcs/OBCS_OPTIONS.h for details)
153    o pkg/atm_phys:
154      - implement simple (obliquity only, assuming circular planet orbit)
155        seasonal cycle for incoming insolation ; used when run-time parameter
156        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
157    o pkg/exf, pkg/ecco, pkg/ctrl:
158      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
159      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
160      - implement gentim2d for xx_tauu, xx_tauv
161    o pkg/ctrl, pkg/ecco :
162      - fix and complement the generic controls implementation
163    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
164        pkg/shelfice/shelfice_thermodynamics.F,
165        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
166        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
167      - add weight in CTRL_GET_GEN calls
168    o pkg/ctrl :
169      - ctrl_get_gen.F : add weight as input parameter, and apply
170        it directly rather than using smooth_correl2Dw (to be retired).
171      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
172    o pkg/ctrl :
173      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
174        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
175      - re-activate ctrl_summary (call in ctrl_init.F)
176    o pkg/ctrl/ctrl_cost_gen.F :
177      - fix CCP brackets, remove un-necessary myiter, mytime
178    o pkg/ecco, pkg/ctrl :
179      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
180      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
181      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
182      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
183    
184    checkpoint65d (2014/09/15)
185    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
186      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
187        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
188    o pkg/ctrl/ctrl_map_ini_genarr.F :
189      - remove compilation failure
190      - replace hard coded example
191      - use ctrl_map_ini_gen2D, 3D
192    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
193      - on/off switch based upon xx_genarr2d_weight,3d
194    o src/packages_init_variables.F :
195      - regroup pkg/estimation calls
196      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
197        (moved to ctrl_init_variables)
198    o cost/cost_init_varia.F :
199      - remove ecco_cost_init_varia
200        (moved to ecco_init_varia)
201    o ctrl/ctrl_init_variables.F :
202      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
203      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
204    o ctrl/ctrl_map_ini.F :
205      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
206        (moved to ctrl_init_variables)
207    o ctrl/ctrl_map_ini_ecco.F :
208      - remove ECCO_PHYS (mv to ecco_init_varia)
209      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
210    o ecco/ecco_ad_diff.list :
211      - add ecco_init_varia.f
212    o ecco/ecco_init_varia.F
213      - new routine
214    o pkg/streamice:
215      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
216        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
217      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
218    o pkg/generic_advdiff:
219      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
220    o pkg/exf:
221      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
222         xxg_precip capability
223      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
224    o pkg/ctrl:
225      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
226    o model/src/load_fields_driver.F :
227      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
228        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
229    o OpenAD verification experiments:
230      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
231        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
232        for now, only in pkgs used in OpenAD verification experiments.
233      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
234        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
235        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
236        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
237    o OpenAD verification tests:
238      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
239      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
240        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
241      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
242        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
243    o model/src & generic_advdiff:
244      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
245        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
246        dynamics requires valid tracer forcing only over tile interior but, for
247        some diagnostics, may need to extend it over 1 point in tile halo region.
248      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
249        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
250        setting in temp/salt/ptracer_integrate.F
251    o pkg/dic:
252      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
253        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
254        in gchem_forcing_sep.F
255    o pkg/autodiff & obcs:
256      - add storage of current OB values for U & V (was already done for T & S).
257    
258    checkpoint65c (2014/08/30)
259    o pkg/dic:
260      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
261        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
262        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
263    o verification:
264      - new experiment testing OBCS and DIC pkgs, using params & output from
265        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
266        passage: take OBCS from the last year of a 2 yrs simulation and initial
267        conditions from t=1.yr while keeping the same forcing.
268    o model/src:
269      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
270        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
271    o pkg/diagnostics (Stats-Diags):
272      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
273        a) refine region where stats are computed, excluding where arrhFac=0 ;
274        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
275        c) extend regional stats over the region edges (for U or V pt location).
276    o pkg/gchem:
277      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
278        pkg/dic is currently changing/updating ptracers values beyond the OB).
279    o verification (hs94):
280      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
281        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
282        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
283        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
284    o pkg/ptracers:
285      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
286        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
287      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
288        with AB-2 code (so that it get tested).
289    o model/src:
290      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
291        with AB-2 code (previously only available with AB-3 code).
292        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
293        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
294        there, by calling CYCLE_AB_TRACER).
295    o pkg/generic_advdiff:
296      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
297        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
298        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
299        S/R temp/salt/ptracers_integrate.F
300    o model/src & pkg/ptracers:
301      - remove common block variables gT,gS (in DYNVARS.h), except when
302         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
303      - remove common block variable gPtr.
304    o model/src & pkgs:
305      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
306         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
307         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
308         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
309      + change accordingly all calling S/R.
310      - use local temperature/salinity/ptracer tendency array (without bi,bj)
311        in S/R temp/salt/ptracers_integrate.F
312    o pkg/seaice:
313      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
314        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
315      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
316        in seaice_lsr
317      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
318        in s/r seaice_lsr_calc_coeffs
319    o pkg/mdsio:
320      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
321        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
322        too long (e.g., > MAX_LEN_FNAM/2 )
323    
324    checkpoint65b (2014/08/12)
325    o pkg/matrix:
326      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
327    o model/src:
328      - fix initialisation of geothermalFile; compile geothermal-flux code in
329        natl_box verification experiment.
330    o model/src & pkg/down_slope:
331      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
332      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
333        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
334        results at machine truncation level: update output of experiments
335        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
336    o pkg/diagnostics (Stats-Diags):
337      - do not cumulate the full volume when DIAGNOSTICS_FILL is
338        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
339        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
340        times (but Min,Max and StD are still wrong).
341    o model/src:
342      - add geothermal flux forcing: read in ini_forcing.F as time-constant
343        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
344    o model/src:
345      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
346        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
347        arrays are already updated while adjustments (filters, conv.adjustment) are
348        still applied later, in S/R TRACERS_CORRECTION_STEP.
349    o model/src:
350      - store in common bloc array "rhoInSitu" the virtual potential temperature
351        anomaly that is used to compute geopotential: this make the atmos code
352        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
353    o pkg/seaice/seaice_lsr.F
354      - rename integer variable ilcall to ipass (that's what it is called
355        in the residual diagnostics
356      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
357        default) for improved non-linear convergence of the first few steps
358      - adjust a few comments and add new ones to explain some of the store
359        directives
360    o pkg/generic_advdiff (& ptracers):
361      - re-work the code to check for valid advection scheme and for minimum
362        size of overlap (now stored in local common bloc in gad_advscheme.F)
363    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
364      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
365      - add an auxilliary variable "bet" and fix store directives and keys in
366        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
367        less exact gradients in my tests); but there are still
368        recomputation warning (although gradients are sort of OK), when
369        SEAICE_LSR_VECTORIZE is not defined, so this flag and
370        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
371      - update verification experiments lab_sea.
372      - change some comments in S/R seaice_calc_viscosities
373    o model/src:
374      - if staggerTimeStep=T, always apply exchange to velocity field in
375        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
376        (independent of using multi-dim advection or not); no effect on FWD run
377        but affects AD results (at machine truncation level): update output of
378        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
379        and isomip (oad: 12.d).
380    o pkg/generic_advdiff:
381      - stop if doAB_onGtGs is set to FALSE but ignored
382      - refine warning related to stability of tracer time-stepping
383        regarding internal wave dynamics.
384      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
385        on staggerTimeStep & implicitIntGravWave (will now get a warning
386        if potentially unstable).
387    o pkg/kl10:
388      - add new pkg "kl10" for mixing due to internal wave breaking, from
389        http://www.sciencedirect.com/science/article/pii/S1463500310000144
390        (contribution from Jody Klymak), tested in verification experiment
391        verification/internal_wave/input.kl10/
392    o isomip experiment:
393      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
394        (input.htd) and update the output.
395    o cd_code experiments:
396      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
397        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
398        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
399        update the corresponding output.
400    o pkg/seaice:
401      - reduce the number of include files and store directives in
402        S/R seaice_lsr_tridiagu/v
403      - change the order of loops in one case in S/R seaice_lsr_tridiagv
404        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
405        get rid off one store directive (a TAF bug?)
406      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
407        S/R seaice_lsr_tridiagv to change the loop range for consistency
408      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
409      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
410        S/R seaice_lsr_tridiagu/v (requires update of
411        offline_exf_seaice/input.dyn_jfnk)
412    
413    checkpoint65a (2014/07/27)
414    o model/src:
415      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
416        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
417        (topo in p-coords, ice-shelf in z-coords); update output of experiments
418        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
419    o model/src:
420      - collect momentum forcing tendency into local 2-D array (passed as argument
421        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
422        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
423        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
424      - collect T & S forcing tendency into local 2-D array (passed as argument to
425        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
426        affects results at machine truncation level (e.g., ocean: if using
427        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
428        correction due to vertical advection).
429      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
430        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
431        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
432        obcs_ctrl (ad & fwd grd @ 12 & 7).
433    o pkg/ptracers & diagnostics:
434      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
435        title (to avoid some unexpected truncation); sort out ptracers diags units.
436      - collect ptracer forcing tendency into local 2-D array (passed as argument
437        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
438    
439    checkpoint65 (2014/07/18)
440    o pkg/fizhi:
441      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
442        affects results at machine truncation level. Update output of experiments
443        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
444    o pkg/seaice: more clean up
445      - rename TAF common block tapes to be more consistent and remove
446        unnecessary duplicates
447      - add store directives to remove more recomputations, but use smaller
448        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
449        The idea behind this flag is to reduce the memory footprint when the
450        adjoint of the LSR is not required. As of now, defining the flag
451        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
452        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
453        For experiment offline_exf_seaice, this means on a linux box with gfortran
454        nearly a factor of 10 (but keep in mind there is mostly seaice code in
455        this experiment):
456        > size mitgcmuv_ad
457        text    data        bss     dec        hex
458        5100659 1216  220458952  225560827  d71c8fb
459        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
460        but only a moderate increase of 36% for global_ocean.cs32x15:
461        text    data        bss     dec        hex
462        6695027 1648 1014578664 1021275339 3cdf6ccb
463        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
464      - note: there are still recomputations in global_ocean.cs32x15 and
465        offline_exf_seaice and the gradient agreement changes (gets a
466        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
467      - in general, the AD gradients still are wrong
468    o OpenAD
469      - clean up code_oad/ directories somewhat by moving files
470        dontCompile, dontTransform, keepOriginal to OAD_support/
471    o model/src:
472      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
473        (not currently tested): add dissipation terms before NLFS rescaling of
474        tendencies (previously done after).
475    o pkg/diagnostics:
476      - write stats-diags in ascii file with more digits (same as in monitor).
477    o pkg/down_slope:
478      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
479        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
480    o model/src:
481      - new file "apply_forcing.F" containing all the code previously in
482        external_forcing.F, but with new argument list: pass, as new argument,
483        the current level tendency array to update (instead of a direct update
484        of the common bloc array). Change the corresponding calls.
485      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
486        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
487    o pkg/seaice/seaice_lsr, a little bit of clean up
488      - rearrange some code blocks, so that now all calculations for
489        setting up the right-hand-sides done within one single block
490        (I find that easier to read and understand)
491      - rearrange freedrift-code to reduce the number of ifdefs
492      - adjust some indentations and comments
493    
494    checkpoint64z (2014/07/10)
495    o model/src and several pkgs:
496      - change argument list of all S/R called from external_forcing.F and
497        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
498        to pass, as argument, the current level tendency array to update
499        (instead of a direct update of the common bloc array).
500      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
501      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
502    o pkg/seaice/seaice_lsr.F
503      - always initialize local arrays in seaice_lsr_tridiagu/v
504      - add more local tapes to seaice_lsr_tridiagu/v
505      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
506        keep it in bi/bj loop; this seems to be essential
507      - gradients are still wrong but only by 4-7 orders of magnitude
508        instead of 15 orders of magnitude, lab_sea improves a little
509    o pkg/seaice
510      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
511        generates unnecessary code in seaice_lsr_ad
512      - add more store directives in seaice_lsr to avoid unnecessary code
513        in seaice_lsr_ad
514      - exclude some residual computations in seaice_lsr when
515        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
516        in seaice_lsr_ad
517      - add more storing, a new tape (model/src/the_main_loop.F) and
518        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
519        and klockey should be checked by a specialist)
520      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
521        and update lab_sea after previous changes in pkg/seaice below
522    o pkg/autodiff:
523      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
524        viscFacInAd : run time parameters allowing for adjoint switches
525        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
526    o pkg/ecco:
527      - introduce cost_gencost_boxmean.F that computes a box mean
528        temperature (for use in adjoint sensitivity studies).
529    o model/src/set_defaults.F : initialize viscFacAdj to 1.
530    o pkg/mom_common/mom_calc_visc.F:
531      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
532    o pkg/seaice/seaice_summary.F:
533      - statement for SEAICEadjMODE now in autodiff_readparms.F
534    o pkg/seaice:
535      - remove some store directives and add new ones in an effort to get
536        finally rid off the recomputation warnings. This is successful
537        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
538        defined (i.e. no extensive recomputation warnings left), but there
539        are still too many recomputations on the solver iteration level
540      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
541      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
542        SEAICE_SIZE.h
543      - add a store directive in S/R seaice_calc_viscosities
544    o pkg/seaice (ITD code):
545      - fix definition of Hlimit for multi-threaded case
546      - use double precision arithmetic to compute Hlimit: this affects results;
547        update output of experiment seaice_itd.
548    o replace content of verification/seaice_itd
549      - instead of a 1D column use the configuration of offline_exf_seaice
550        to test the ice thickness distribution code with ridging
551      - this is a first shot at this experiment
552      - change of some defaults of ridging parameters SEAICEhStar (from
553        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
554        and lot of new comments.
555    
556    checkpoint64y (2014/06/20)
557    o pkg/seaice/seaice_reg_ridge.F:
558      - modify the regularization of very small volumes of ice; only check
559        total volume HEFF, and do not apply correction to individual ice
560        classes because that leads to funny patterns in the heat and fw-fluxes
561        into the ocean. Adjust seaice_itd/results/output.txt
562      - replace nITD by SEAICE_multDim in loop-ranges
563    o pkg/exf:
564      - add code to process the case field period = -12. with UV interpolation.
565      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
566        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
567    o verification/global_with_exf:
568      - switch all fields period to -12. (was previously untested) in input/data.exf
569        (but keep secondary test ".yearly" unchanged); update the reference output.
570    o pkg/cal:
571      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
572    o pkg/exf:
573      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
574        to replace logical switch "exf_verbose"
575      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
576    o pkg/sbo:
577      - update from Katherine Quinn: evaluate mass directly from density and SSH
578        (budget using Finite Volume method) instead of from bottom pressure.
579      - allow testreport to collect few selected SBO output ; tested in exp.
580        global_ocean.90x40x15 (after updating the results, to include SBO output).
581      - fix some multi-threading issues (in output part).
582    o model/src & most packages:
583      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
584      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
585        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
586        "data.{pkg}" exist ; and leave the S/R (return) just after.
587      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
588        + call LAND_READPARMS from packages_readparms.F
589    o pkg/seaice:
590      - remove code that resets useThSice in S/R seaice_readparms and
591        replace it by a warning in S/R seaice_check
592      - remove parameter MULTDIM, replace with nITD and runtime
593        parameter SEAICE_multDim (still hard-wired to nITD if
594        SEAICE_ITD is defined)
595    
596    checkpoint64x (2014/05/24)
597    o verification/lab_sea:
598      - update adjoint and TLM output following changes to pkg/salt_plume
599      - un-do the update after putting back local recip_Cp in few places.
600    o pkg/salt_plume: modifications by An Nguyen:
601      - add capability to do brine rejection (salt-plume) as function of
602        volume+tracers (instead of only salinity tracer).
603      - conserve volume by exchanging volume from each kLev to above to
604        accommodate in-coming brine volume
605      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
606      - switch KPP surf buoyancy due to brine forcing to 3-d
607        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
608      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
609      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
610        in East/West Arctic.
611    o pkg/sbo:
612      - incorporate modifications from Katherine Quinn to enable the use of sbo
613        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
614        output for future testreport verification (unfinished).
615    o pkg/atm_phys:
616      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
617        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
618        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
619    o pkg/seaice
620      seaice_calc_ice_strength.F: modify expression to avoid divisions
621        (affects truncation)
622      seaice_do_ridging.F: clean up the insectarium
623      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
624      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
625      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
626      - add some debugging information and error messages (warnings)
627    o model/src: modifications relatd to atmosphere p*:
628      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
629      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
630        of vertical profile tRef in geopotential background and anomaly.
631      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
632        and pkg/atm_phys.
633      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
634        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
635    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
636    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
637        not used right now, but can be used in BGC packages to fix conservation.
638    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
639        other packages too.
640    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
641        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
642    o model/src:
643      - since we have several heat capacity (even in model/src), define "recip_Cp"
644        as local variable (no longer in common block) to avoid any confusion.
645      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
646    o pkg/exf:
647      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
648        air density as function of air Temp, Humidity and atm pressure.
649    
650    checkpoint64w (2014/05/02)
651    o verification:
652      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
653        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
654        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
655        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
656        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
657    o model/src: for atmosphere in p* coords:
658      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
659      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
660        but not yet activated.
661    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
662      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
663      - this changes the results (but not for any verification experiment, because
664        none tests this), but avoids having an extra field in the restart files
665    o pkg/seaice: remove global variable TICE (not needed)
666      - replace by TICES or local variable where necessary (cost_seaice_test,
667        seaice_diagnostics_state)
668      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
669      - use specific read/write routines for reading and writing individual leves
670        of a multilevel field
671    o pkg/ctrl & model/inc:
672      - move additional anomaly fields of control vars (related to options:
673         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
674        from DYNVARS.h into new header file: CTRL_FIELDS.h
675    o pkg/seaice: some small modifications to the ridging code
676      - make fw2ObyRidge a global variable and add the freshwater flux to
677        seaice_growth
678      - pass actual thickness from seaice_prepare_ridging, so that it is
679        computed only in one place and compute it in the same way as in
680        seaice_growth
681      - initialise more fields in seaice_do_ridging that where cause floating
682        point exceptions over land
683    o pkg/seaice: preparations for ridging code and first real ridging code
684      - move most of "PART 1" of S/R seaice_growth into a new and separate
685        S/R seaice_reg_ridge that will both regularize the state variable after
686        advection call the actual ridging routine;
687      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
688        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
689      - remove ridging code from seaice_advdiff
690      - clean up remaining part 1 of seaice_growth in an attempt to make it
691        more readable (this is probably subjective)
692      - call seaice_itd_redist once in the initialisation phase to have the initial
693        conditions in the correct category
694      - finally: add new ridging routine for ITD code
695    
696    checkpoint64v (2014/04/11)
697    o pkg/ecco:
698      - add runtime parameters mdt[start,end]date[1,2]
699      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
700    o pkg/seaice:
701      - make deltaC a global variable, so that it can be used in ridging code
702      - first step towards ridging: introduce new routines that compute
703        ice strength based on ridging parameters
704      - add diagnostic for HSNOWITD
705      - add opnWtrFrac as a global variable (required for ridging scheme)
706    o pkg/salt_plume + pkg/seaice/seaice_growth.F
707      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
708        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
709    o verification/hs94.1x64x5:
710      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
711      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
712    o autodiff:
713      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
714        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
715        For now, only in pkgs used in verification/hs94.1x64x5.
716      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
717        which are specific to TAF/TAMC).
718      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
719        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
720        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
721      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
722        building mitgcmuv_ad (make adAll).
723    o pkg/ecco:
724      - cost_gencost_seaicev4.F:
725         reformulate proxy cost as function of sst and local param SEAICE_freeze
726         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
727      - add stop statement if old names siv4-[sst,vol] are used
728      - add snapshots + cost reports for atmospheric longwave
729      - remove factor 0.1 in front of wtau[u,v]
730      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
731         ALLOW_TMI_SST_COST_CONTRIBUTION
732    o pkg/atm_phys:
733      - add some diagnostics for Short-wave and for convection S/R.
734    o pkg/seaice/seaice_growth:
735      - fix a bug in the lateral melt parameterization for SEAICE_ITD
736        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
737      - rearrange loop order for better vector code in the same code block
738      - rewrite the floeDiameter formula to have fewer divisions
739      -  (miraculously) none of this changes the results of seaice_itd
740    o pkg/smooth:
741      - move param smooth2Ddiffnbt to pkg/ecco
742    o pkg/salt_plume:
743      - salt_plume_frac.F:
744         clean up local param names
745         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
746    o pkg/rw:
747      - add RS version of S/R READ_MFLDS_LEV.
748    o pkg/streamice:
749      - fix the restart test by writing/reading pickup_streamice files.
750    o pkg/seaice:
751      - refine checks for jfnk-related parameters
752      - comment out if statement with SEAICEuseIMEX parameter as long as there
753        is no IMEX code to avoid confusion and surprises
754    
755    checkpoint64u (2014/03/07)
756    o verification/MLAdjust:
757      - rename secondary test suffix:
758         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
759         0.leithD -> AhFlxF  + switch to flux-form
760         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
761         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
762    o pkg/mom_vecinv:
763      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
764        to be before mom_calc_visc.F)
765      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
766      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
767        this is simpler for the adjoint and for diagnostics.
768    o model/src + pkg/momentum:
769      - add input files for  2-D additional Western and Southern cell-edge wall
770         (e.g., to add "thin-wall" where it is =1).
771      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
772        using 2nd hFacZ that is computed from initial (fix domain) hFac
773      - known limitations of thin wall implementation: not yet coded for sigma
774        coords; not working with CD-scheme neither.
775    o pkg/seaice:
776      - rename recently introduced parameters from (wrong name) AB to
777        BDF (backward difference time discretisation)
778      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
779    o tools/adjoint_options:
780      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
781    
782    checkpoint64t (2014/02/01)
783    o pkg/ecco
784      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
785        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
786      - replace hard-coded record number and period which only work for monthly
787        with read-in runtime param that works for other periods (month,day,year)
788    o pkg/thsice
789      - corrected store directive fixes thsice adjoint gradient checks
790    o genmake2 & testreport:
791      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
792        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
793        Update testreport accordingly. No need to set "export OPENAD=true"
794        in adjoint_options/adjoint_oad anymore (will be removed later).
795    o pkg/shelfice:
796      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
797        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
798        so that surface forcing applies to k=kSurf if using pkg/shelfice.
799    o pkg/ctrl, pkg/grdchk, pkg/ecco:
800      - Changes to make GENARR more modular (i.e. invisible if not used)
801    o model/src/temp_integrate.F and salt_integrate.F
802      - re-include store directives that were removed on Dec 27th.
803    o model/src/external_forcing_surf.F
804      - add storage directives for EmPmR and PmEpR to avoid recomputation of
805        seaice_model in the adjoint that is problematic when seaice_model is
806        turned off in the adjoint. The resolved issue dated back to July when
807        EXTERNAL_FORCING_SURF call was moved.
808        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
809    o pkg/exf/exf_check.F
810      - fix a small bug again (originally found by Wentao Liu, now found again)
811      - streamline error output
812    o pkg/streamice and aim_v23:
813      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
814        Apple's /usr/bin/cpp knows what to do:
815        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
816        Target: x86_64-apple-darwin13.0.0
817    
818    checkpoint64s (2014/01/05)
819    o tools/adjoint_options:
820      - switch to fastopt.net TAF server (instead of default fastopt.de) for
821        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
822    o model/src:
823      - remove some unnecessary TAF storage directives in forward_step.F and
824        in dynamics.F (note: not always removed by TAF, e.g., double storage
825        of kappaRU,kappaRV in former version of dynamics.F).
826    o model/src & pkg/ptracers:
827      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
828        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
829        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
830      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
831      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
832      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
833    o useSingleCpuInput separates single-CPU input from single-CPU output;
834        for now only implemented for in exf_interp_read.F
835    o verification/advect_xy:
836      - fix missing EXCH call in local version of ini_salt.F and update output.
837    o momentum diagnostics:
838      - fix which deltaT is used in Total-Tendency diagnostics.
839      - fix typo in diagnostics for momentum tendency from AB.
840    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
841        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
842    
843    checkpoint64r (2013/12/08)
844    o verification/*/results:
845      - Update reference output of experiments that were passing with just 13 digits
846         (make it easier to detect future changes in results)
847    o model/src & pkg/ptracers:
848      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
849        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
850        to inside ptracers_integrate.F ; remove ptracers_advection.F
851    o coupling interface pkgs:
852        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
853      - change the config check to test the agreement of Ocean Depth
854        with ATM land/sea mask (instead of ATM orography);
855      - send to coupler the number of coupler time-steps to do for this run:
856        this allows to check for consistency and don't need anymore to be
857        specified in parameter file "data";
858      in coupler:
859      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
860      - improve report to log-file of config setting (pass log-file unit to few S/R)
861    o pkg/compon_communic:
862      - add coupling send/receive for non-tiled integer vector;
863      - add S/R to check and stop if any proc has an error (similar to
864        eesupp/src/stop_if_error.F but single thread and across Comm_World).
865    o pkg/exch2:
866      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
867        through list of all tiles my proc owns.
868    o model/src:
869      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
870        from rTrans) to simplify dependencies (no need to store rTrans anymore in
871        calling S/R); this affects AD results at machine truncation level:
872        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
873        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
874    o tools/build_options:
875      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
876    o coupling interface pkgs:
877        [compon_communic, atm_compon_interf & ocn_compon_interf]
878      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
879        to each S/R that needs it; remove un-used variables.
880      - change component tile registration (cpl_register.F in both compon_interf
881        and mitcomponent_tile_register.F) to pass the full list of tiles
882        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
883      - with pkg/exch2: adopt the same convention used for I/O to define mapping
884        towards coupler global array (unless W2_useE2ioLayOut=F):
885         a) can now use different tiling between atm & ocn comp.
886         b) no needs to modify the run-Off map when changing tiling (was needed
887            even if using the same tiling between atm & ocn).
888         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
889            full land tiles); not yet tested.
890      - check for valid mapping from comp. tile to coupler global array
891      - improve report of tile registration results to log file.
892    o pkg/exch2:
893      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
894        tile-registration (CPL_REGISTER);
895      - activate (un-comment) definition and setting of "W2_tileIndex" list to
896        store the local bi,bj indices of each tile;
897      - also print bi,bj in local report to log file;
898      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
899        Jun 2009 modif of pkg/exch2).
900    o testing on baudelaire:
901      - run 2 tests at a time: no significant slow down (since enough cpu) and
902        get the full set of test done earlier
903      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
904    o model/src/thermodynamics.F and routines called from it:
905      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
906        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
907        velocity (outp) by adding bolus velocity.
908      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
909        mass transport from velocity + lateral grid cell area
910      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
911      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
912     in thermodynamics.F
913      - remove k from thermodynamics.F and move it to temp_integrate.F
914        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
915        loop).
916      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
917        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
918        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
919        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
920      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
921        global_ocean.90x40x15, tutorial_global_oce_biogeo and
922        tutorial_tracer_adjsens (+ TLM output).
923    o tools/OAD_support and (verification/*/) code_oad:
924      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
925        module conversion ; remove unneeded CPP_EEOPTIONS.h.
926      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
927        version (closer to model/inc/CPP_OPTIONS.h).
928    o model/src:
929      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
930        retired list of parameters (routine FREEZE has been replace by surface
931        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
932    o pkg/gmredi:
933      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
934        velocity (same scheme but affects machine truncation) for GM_AdvForm.
935      - update output of FWD experiments: front_relax.bvp,
936        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
937    
938    checkpoint64q (2013/11/17)
939    o verification:
940      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
941        tutorial_global_oce_biogeo and global_ocean.90x40x15.
942      - generate new output (growth & melt) for seaice_itd experiment after
943        updating the input pickup_seaice files (previously wrong).
944    o pkg/cost:
945      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
946        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
947        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
948          cannot be applied to var in common block).
949        o allows to get results independent of tile-per-proc setting (if using
950          slower GLOBAL_SUM_SEND_RECV option).
951      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
952        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
953        forward gradients: update output).
954      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
955        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
956    o pkg/mom_common:
957      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
958        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
959        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
960        ensure that all field value that are used are set.
961    o tutorial_deep_convection (smag3d):
962      - add missing scaling in mom_calc_smag_3d.F;
963      - set smag3D_coeff in input.smag3d such that results do not change.
964    o pkg/dic:
965      - change dic_cost.F to compute cost on each tile first and then apply
966        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
967        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
968      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
969    o eesupp/src & pkg/mdsio:
970      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
971        (from pkg/mdsio) since they are no longer used for tape IO.
972      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
973        (+ keep a copy in pkg/atm_ocn_coupler).
974    o verification/isomip:
975      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
976    o tools/build_options:
977      - optfile linux_amd64_ifort11, fast (no ieee) case:
978        to get a working restart for all experiments, add "-fp-model source"
979        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
980    
981    checkpoint64p (2013/10/20)
982    o pkg/autodiff:
983      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
984        criteria, return to simple (default) tape IO format.
985    o pkg/mdsio (+ eesupp/src):
986      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
987        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
988      - fix globalFile and singleCpuIO options using simpler global mapping.
989      - new pairs of scatter/gather vector S/R (one for each type, generated from
990        template) corresponding to simpler global mapping.
991      - adread_write.F: switch to new S/R (but leave old calls commented) and write
992        to globalFile when parameter globalFiles is set to True.
993      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
994    o pkg/autodiff:
995      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
996        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
997        missing, just add a STOP if array type do not match.
998    o pkg/exf:
999      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
1000         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
1001         and rename array obsSIce to exf_iceFraction.
1002    o tutorial_deep_convection:
1003      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
1004        for now all in this exp. code dir.
1005      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
1006        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
1007    o eesupp/src:
1008      - added SINGLE_DISK_IO option because reading of parameter files on
1009        very large number of processors did not work with existing set-up
1010    
1011    checkpoint64o (2013/09/25)
1012    o pkg/atm_phys & atm_compon_interf:
1013      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
1014    o tools/build_options:
1015      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
1016        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
1017        remove CPP setting (was identical to genmake2 default).
1018    o pkg/gmredi & model/src: Some updating and work done on the residual model.
1019      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
1020      - fixed up the calculation of the eddy stress and how it is added to the
1021        external forcing via taueddy_external_forcing.F
1022      - at the moment, it is very experimental and only works with the variable eddy
1023        diffusivity calculated in gmredi_k3d.F
1024    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
1025        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
1026    o testreport (& tools/do_tst_2+2):
1027      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
1028    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
1029      - remove CPP='cpp -traditional -P' (this is genmake2 default)
1030      - add switch (for big setups) to use 'medium' memory-model (but leave it
1031        commented out for now). Note: needed with FC 19 to compile big setups.
1032    o pkg/atm_compon_interf:
1033      - regroup per field origin (model & pkgs) the coupling storage routines
1034         (which accumalate in time each coupling field)
1035      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
1036        update accordingly + simplify aim_do_physics.F
1037    
1038    checkpoint64n (2013/08/26)
1039    o pkg/bbl:
1040      - update formulation to reduce dispersion of tracer properties in bbl
1041      - replaced horizontal and vertical transport parameters with velocities
1042      - changes results for verification/global_with_exf.yearly
1043    o verification/halfpipe_streamice:
1044      - change to matrix construction; update both Fwd & AD output.
1045    o verification/tutorial_tracer_adjsens:
1046      - OpenAD test: switch to vector-invariant momentum since fluxform with
1047        rStar causes problems with OpenAD; update output.
1048    o tools:
1049      - genmake2: define a common prefix for all temp-file names ; move them
1050        to local /tmp disk (but would be easy to move them back);
1051      - xmakedepend: apply the same switch for temp-files.
1052    o pkg/offline:
1053      - changes for use with rStar (NLFS): assume that we continue to provide
1054        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
1055        output files) and apply r* scaling at each time-step (function of the time
1056        varying Eta field); use normal pickup files (needed for restart with NLFS).
1057    o adjoint with OpenAD:
1058      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
1059        package openad.  This package has to be compiled for all runs with OpenAD
1060        instead of specifying code_oad_all as a modification directory.
1061      - link the fortran templates from tools/OAD_support to the build directory
1062        for preprocessing to avoid conflicts between different setups compiled
1063        simultaneously and simplify cleanup.
1064    o pkg/exf:
1065      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
1066        main model or other pkgs are exchanged in EXF_MAPFIELDS).
1067    o model/src:
1068      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
1069        (similar to do_fields_blocking_exchanges.F).
1070    o tools/genmake2:
1071      - remove TAF output src code just before calling staf (when not doing a fresh
1072        built, will stop if things go wrong with staf).
1073      - fix target "adobj" (left from TAF version-2 transition)
1074    o pkg/diagnostics:
1075      - add a parameter to track the status of pkg/diagnostics activation;
1076        this replace/extend the use of logical param "settingDiags" (to check
1077        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
1078        New S/R to print error message and stop when pkgStatus is not right.
1079      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
1080    
1081    checkpoint64m (2013/08/13)
1082    o model/inc:
1083      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
1084        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
1085    o pkg/kpp & aim_v23:
1086      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1087    o pkg/seaice:
1088      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
1089        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
1090      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1091    o eesupp/src:
1092      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
1093        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
1094    o switch to TAF version-2:
1095      - add flow directives to "freeze" naming convention for ad-routines that
1096        are used in I/O routines of adjoint state and associated common blocks
1097        that are used in adcommon.h (backward compatible with version-1)
1098      - update all ad-optfiles (in tools/adjoint_options + few local to some
1099        verification exp) to switch to latest TAF version (currently 2.5.5);
1100        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
1101        out except for diva).
1102      - the major change with TAF version-2 is that both the differentiated
1103        routines and the forward routines (new) are returned as part of the TAF
1104        output source code. Update genmake2 accordingly.
1105      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
1106        with version-2 when compared to TLM or FWD gradient); other experiments
1107        output show minor changes (machine truncation level); update the few AD &
1108        TLM output with 12 matching digits only (some prior to version-2 switch).
1109    
1110    checkpoint64l (2013/08/05)
1111    o model/src:
1112      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
1113      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
1114        when using TAF but only if using OpenAD.
1115    o pkg/mom_common+fluxform+vecinv:
1116      - always set horiz. viscosity arrays to background value before calling
1117        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
1118        only when using variable horiz. viscosity (useVariableVisc=T);
1119      - simplify mom_vecinv.F (only 1 block for momViscosity).
1120    o pkg/mom_common: variable horiz. viscosity in NH code
1121      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
1122        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
1123      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
1124        useBiharmonicVisc & useVariableVisc.
1125      - fix old bug (already in 1rst implementation of variable horizontal viscosity
1126        in calc_gw.F, version 1.27, 2006/06/20):
1127        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
1128        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
1129      - change background horiz viscosity in vertical momentum (gW) to always be
1130        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
1131        any type of variable viscosity, e.g., viscAh/4Grid)
1132      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
1133        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
1134        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
1135        default viscAh,viscA4 is zero).
1136    o model/src:
1137      - extend length of drC & recip_drC from Nr to Nr+1.
1138    o Divided Adjoint (DIVA) with MPI:
1139      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
1140      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
1141        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
1142    
1143    checkpoint64k (2013/07/23)
1144    o tools/OAD_support:
1145      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
1146        and remove it from genmake2.
1147    o tools/build_options:
1148      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
1149        MPI_HEADER_FILES list (let genmake2 find the missing headers)
1150    o verification/halfpipe_streamice:
1151      - change to driving stress formulation; update both Fwd & AD output.
1152    o tools/genmake2 and Divided Adjoint with MPI:
1153      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
1154      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
1155      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
1156        Makefile, which is set by genmake2, and check which mpi-headers are needed.
1157        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
1158      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
1159    o testreport:
1160      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
1161        perform additional runs (number of additional runs is "add_DIVA_runs" taken
1162        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
1163    o verification/lab_sea (AD test):
1164      - change to test Divided Adjoint Run in this set-up (both standard AD test
1165        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
1166    o pkg atm_ & ocn_compon_interf:
1167      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
1168        staggerTimeStep implementation) and disable (retired) corresponding
1169        parameter.
1170    o pkg/offline:
1171      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
1172      - add S/R OFFLINE_CHECK to print offline parameter summary
1173        and stop if loading a file that is not used;
1174      - enable to calculate GMRedi tensor, KPP mixing and convective index
1175        when the corresponding file(s) is/are not specified (but pkg is used).
1176      - comment out resetting of monitorFreq (to endTime) since it still useful
1177        for monitoring CFL numbers and checking offline fields.
1178    o OpenAD:
1179      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
1180        smaller standard output) and generate new (smaller) output (on baudelaire
1181        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
1182    o model/src:
1183      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
1184        (where external_forcing_adjust was called) and change list of arguments;
1185      - merge external_forcing_adjust.F into external_forcing_surf.F
1186      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
1187        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
1188        previously in file "balance_relax.F", now removed); remove corresponding
1189        arrays in FFIELDS.h.
1190      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
1191        a hack for getting back surfaceForcingS (loaded from file) when using
1192        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
1193      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
1194        (was getting only 11 digits for AD-grad, due to different truncation
1195         error in AD code).
1196    
1197    checkpoint64j (2013/07/04)
1198    o pkg/offline:
1199      - to enable the use of other features with pkg offline (e.g., obcs),
1200        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
1201      - comment out "allowFreezing" (now active) in 2 offline testing exp.
1202    o pkg/exf ALLOW_RUNOFTEMP
1203      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
1204      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
1205      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
1206    o pkg/atm_phys:
1207      - allows to add some damping on uVel,vVel (strength only function of k).
1208    o verification, ad-tests:
1209      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
1210        global_ocean_ebm and offline_exf_seaice.thsice.
1211    o verification/halfpipe_streamice:
1212      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
1213        flux input boundary conditions to be ignored; a fix for this bug changed
1214        verification results for forward test.
1215      - add adjoint test.
1216    o pkg/ptracers:
1217      - allow to restart without SOM pickup (resetting SOM to zero).
1218    o pkg/gmredi:
1219      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
1220      - It uses mixing length theory and suppression by steering level effects to
1221        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
1222        to JPO, for more details).
1223      - It also uses the diffusivity to calculate an eddy induced streamfunction
1224        based on a PV closure (rather than a buoyancy closure as in GM).
1225      - New files added to pkg/gmredi:
1226        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
1227          induced overturning streamfunction (called from gmredi_calc_tensor)
1228        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
1229          for use in gmredi_k3d
1230        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
1231          the eddy diffusivity
1232    
1233    checkpoint64i (2013/06/18)
1234    o pkg/cheapaml:
1235      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
1236        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
1237        with pkg/cheapaml.
1238    o utils/python: add subpackage for cubed sphere function, first example is
1239        simple cs.pcol to plot 2D fields on a map
1240    o pkg/streamice:
1241      - This is a new package in MITgcm, which solves dynamic equations for ice
1242         sheets and ice streams
1243      - At the moment it is independent of atmosphere/ocean dynamics, or any
1244        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
1245        ed that this will change)
1246      - There is a new verification exercise that tests it, halfpipe_streamice,
1247        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
1248        rectangular embayment
1249      - halfpipe_streamice is forward-only for now, will have TAF test soon
1250      - for questions, email dgoldber@mit.edu
1251    o pkg/thsice:
1252      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
1253        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
1254      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
1255         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
1256      - allow precip from pkg/cheapaml to make snow over seaice.
1257    o pkg/cfc:
1258      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
1259      - remove atmos CFC 2-D arrays from common bloc (now local variables)
1260      - change some hard-coded constant to run time parameter for reading and
1261        and interpolating atmospheric CFC ; keep same default as previously.
1262      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
1263      - put arguments in standard order: myTime, myIter, myThid
1264      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
1265        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
1266      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
1267      - new routine to print summary of CFC params and check for consistency.
1268    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
1269      similar to thsice_advdiff.
1270      Note that for the B-grid case the routine parameters uc/vc are overwritten.
1271    o pkg/cfc:
1272      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
1273        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
1274      - fix interpolation of atmphspheric CFC between Sorthern and Northern
1275        hemisphere value.
1276    o pkg/seaice:
1277      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
1278    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
1279                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
1280      - requires an additional time level that is stored in the pickup
1281      - you can start with AB2 from a pickup without this time level with
1282        pickupStrictlyMatch = .false.
1283    
1284    checkpoint64h (2013/05/26)
1285    o pkg/cheapaml:
1286      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
1287        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
1288      - consistent treatment of uWind,vWind location: assume everywhere in
1289        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
1290        (Note: was already the case for Tair,Qair advection);
1291        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
1292      - compute diabatic forcing only in the interior (excluding overlap regions)
1293      - fill in array "Qsw" (for short-wave heating);
1294      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
1295        before any update (consistent with MITgcm state var diagnostics);
1296      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
1297        non periodic ; + adjusted for uWind,vWind (C-grid).
1298    o pkg/seaice:
1299      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
1300        add explicitly pkg/exf in experiments that currently use pkg/seaice.
1301      - allows to compile pkg/seaice without pkg/exf.
1302    o tools/OAD_support:
1303      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
1304        of array "ourStepOf" in function rvNextAction (revolve.F90).
1305    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
1306      - change pkg name (to be used with other atmospheric physics pkg)
1307        but by-pass CVS when making the new pkg so that we keep the CVS history.
1308    o pkg/offline:
1309      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
1310        (previously called from pkg/dic_surfforcing_init.F)
1311    o model/src:
1312      - re-order sequence of calls within packages_init_variables.F, using
1313        standard order, except for:
1314         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
1315         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
1316    o new pkg: atm_phys
1317      - add entry point and source code (previously in contrib
1318          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
1319        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
1320      - re-order sequence of calls within packages_readparms.F,
1321         packages_init_fixed.F and packages_write_pickup.F
1322        (but skip packages_init_variables.F because of TAF issues).
1323      - update contrib/*/atm_gray/ experiment.
1324    o pkg/seaice (ITD code):
1325      - simplify and fix the writing of pickup-files for ITD case
1326    o pkg/seaice (ITD code):
1327      - introduce floe size dependent lateral melt for ITD case;
1328      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
1329      - update seaice_itd experiment main output.
1330    o pkg/thsice:
1331      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
1332        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
1333        changed accordingly pkg/atm2d.
1334    
1335    checkpoint64g (2013/05/01)
1336    o pkg/exf ALLOW_RUNOFTEMP
1337      - if defined,  river and glacier runoff temperature can be read-in from
1338        runoftempfile; runoftempfile needs to have same format as runofffile
1339    o pkg/thsice (& pkg/bulk_force):
1340      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1341        for energy content of Precip + RunOff & Evap (like with pkg/exf).
1342      - change computation domain to always be the interior (without overlap).
1343      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
1344    o verification/tutorial_global_oce_biogeo:
1345      - add preliminary OpenAD setup (still has problems)
1346    o pkg/seaice:
1347      - turn some parameters for choosing the convergence criterion of
1348        the inexact Newton method (JFNK) into runtime parameters for convenience
1349      - clean up seaice_calc_viscosities.F: remove/retire two options for
1350        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
1351        the results of lab_sea/input because a division has been replaced by
1352        a multiplication with the reciprocal (sumNorm)
1353      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
1354        convergence of solver (changes results, of course), and to test some
1355        new features
1356    o model/src:
1357      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
1358      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
1359      - move forcing adjustment (balancing surface forcing) in specific S/R
1360        where might also be applied exchanges (if needed) to forcing arrays.
1361    o pkg/shelfice:
1362      - allow to specify the Ice-Shelf mass per unit area (instead of
1363        shelficeLoadAnomaly) and do the conversion from one to the other
1364      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
1365        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
1366        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
1367        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
1368      - update isomip experiment forward output (get machine truncation error
1369        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
1370    o verification/offline_exf_seaice:
1371      revise data.seaice in input.thermo and input_ad and update results accordingly
1372        HO = 0.2, SEAICE_areaLossFormula = 2,
1373        SEAICE_growMeltByConv = .TRUE.,
1374        SEAICE_doOpenWaterMelt = .TRUE.,
1375      Improve consistency with input.thsice and fix the spurious 500m ice corners
1376    o verification/global_ocean.cs32x15:
1377      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
1378        in icedyn (thsice+seaice-dyn) test and update output.
1379    o verification/offline_exf_seaice:
1380      - adjust list of tested variables (with testreport) and update
1381        standard test output with better slection of monitored fields.
1382    o pkg/cd_code:
1383      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
1384        experiment lab_sea.hb87
1385    o tools/genmake2:
1386      - change default makedepend from the system default to tools/xmakedepend:
1387        When no makedepend is specified, select tools/xmakedepend it the test pass,
1388        otherwise select the system default (if exist and pass the test) or
1389        try to build cyrus-makedepend ; stop if none of the 3 works.
1390    o pkg/exf & pkg/thsice:
1391      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1392        for energy content of Precip + RunOff & Evap. Assumes:
1393       1) Rain has same temp as Air.
1394       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
1395       3) Run-Off comes at the temp of surface water (with same Cp)
1396       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
1397        put directly into Latent Heat flux & should use water-vapor heat capacity.
1398       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
1399        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
1400    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
1401        (compile when SEAICE_ALLOW_JFNK is defined)
1402    o pkg/thsice:
1403      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
1404        implementation): move THSICE_AVE call after the advection (called directly
1405        from thsice_do_advect.F).
1406    o verification/global_ocean.90x40x15 and OpenAD:
1407      New experiment for OpenAD is identical to the one in input_ad except that
1408        multiDimAdvection=.FALSE.,
1409      There is still an issue with this.
1410    o pkg/thsice:
1411      - account for ice velocity (ocean relative velocity) in turbulent heat flux
1412        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
1413        and offline_exf_seaice (main test).
1414    
1415    checkpoint64f (2013/03/31)
1416    o verification/OpenAD:
1417      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
1418    o verification/isomip, pkg/shelfice and OpenAD:
1419      - add OpenAD setup to this exp and make shelfice package work with OpenAD
1420    o verification/tutorial_global_oce_biogeo:
1421      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
1422    o verification/offline_exf_seaice:
1423      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
1424    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
1425      - add OpenAD setup to this exp and make ptracers package work with OpenAD
1426    o pkg/seaice/seaice_evp.F:
1427       mask the asymmetric contribution of the ice-ocean stress (when
1428       the turningAngle is non-zero) over open water to avoid stripes
1429       in the EVP-solutions after many EVP-substeps. This does not change
1430       the verification experiment (because turningAngle=0 in that experiment),
1431       but will affect other EVP solutions with turningAngle.ne.0
1432    o verification, AD & TLM output:
1433      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
1434        additions and multiplications which affect results at machine truncation
1435        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
1436        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
1437        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
1438        digits of matching.
1439    o pkg/seaice:
1440       modify lsr-algorithm so that it vectorizes AND converges by using a
1441       "zebra" method: split vector loop into two with step size 2; this
1442       solves a general convergence problem for the JFNK solver on a vector
1443       computer. It has the potential to even improve convergence for
1444       non-vector machines, but it does change the results so it is turned
1445       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
1446       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
1447    
1448    checkpoint64e (2013/03/05)
1449    o pkg/ecco and several verification experiments:
1450       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
1451       from ecco package, and revert to unified routine in model/src/
1452       Adjust verification experiments accordingly, especially gloal_oce_llc90
1453       Should conclude long-standing work by Gael to reconsile the_main_loop with
1454       ECCO and will enable OpenAD's revolve loop in ECCO setup.
1455    o pkg/generic_advdiff:
1456      - implement compressible flow method for multi-dim advection (similar to
1457        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
1458        TAF generates many recomputations) to use it; no yet coded with implicit
1459        vertical advection.
1460      - change experiment advect_cs (new output) and advect_xy (same output)
1461        to test compressible flow multi-dim advection.
1462    o pkg/generic_advdiff:
1463      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
1464        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
1465    o pkg/seaice:
1466      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
1467        bug affects two verification experiments (lab_sea and lab_sea.hb87),
1468        recover old (wrong) results by setting noSlipFac = 2. in
1469        seaice_calc_strainrates.F;
1470      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
1471      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
1472        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
1473      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
1474    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
1475      - new subroutines seaice_lsr_tridiagu/v
1476      - introduce loop bounds i/jmin/max to be able to use a restricted
1477        additive Schwarz method, but not used for now.
1478      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
1479      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
1480    o OpenAD support
1481       Reorganize S/R call for overall time-stepping loop to facilitate
1482       OpenAD revolve loop replacement
1483       (new S/R main_do_loop.F)
1484    o model/src:
1485      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
1486      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
1487        ADAMS_BASHFORTH2.
1488    o pkg/cheapaml:
1489      - add new parameter (default=F, same as before) to disable full domain
1490        (including land) periodicity in X & Y dir.
1491      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
1492        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
1493        into single S/R CHEAPAML_TIMESTEP.
1494    
1495    checkpoint64d (2013/02/17)
1496    o pkg/monitor (angular momentum):
1497      - do not add Eta contribution to the total AM if using rigid-lid;
1498      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
1499      - horizontal discretisation: compute Zonal wind contribution separately for
1500        each component (instead of from cell centered averaged) and use the 4
1501        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
1502      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
1503        FreeSurf) if using vectorInvariant momentum.
1504    o model/src (horizontal grid):
1505      - move initialisation of all horizontal grid arrays to null value
1506        from specific horizontal grid S/R to main S/R INI_GRID;
1507      - add 2 new arrays to project model C-grid velocity on to zonal direction
1508        (similar to AngleCosC & -AngleSinC but at U and V point location) and
1509        compute them in S/R CALC_GRID_ANGLES.
1510    o pkg/seaice: replace a hard coded parameter by a runtime parameter
1511        SEAICE_JFNK_tolIter
1512    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
1513        preconditioner for JFNK (run LSR into the overlaps as far as possible,
1514        i.e OLx/y-2, but overwrite the solution in the overlaps)
1515      - extend loop range in seaice_calc_viscosity
1516      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
1517      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
1518      - slightly modify loops in tridiagonal solver lsr-preconditioner
1519      - by default remove the extra exchange in seaice_preconditioner with a
1520        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
1521      - modify offline_exf_seaice so that old results without RAS are reproduced
1522        for output.dyn_jfnk.txt
1523      in seaice_fgmres.F (unrelated to RAS)
1524      - add a cpp-flag option for a re-ordered mapping (potentially more
1525        efficient), but because this changes the results, turn it off by
1526        default
1527      - replace the save statement by local common blocks
1528    o utils/matlab:
1529      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
1530      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
1531        instead of local script "load_cs.m".
1532    o pkg/seaice:
1533      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
1534        to the scalarProductMetric and the unrolling. By chance this does not
1535        change the verification experiment, because of the particular domain
1536        decomposition
1537    o pkg/diagnostics:
1538      - change default missing_value from UNSET_RL to -999.
1539    o pkg/layers: improve vectorization of layers_fluxcalc.F
1540      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
1541        time spent in this routine by more than a factor of 3 on an NEC-SX8
1542      - step 2: replace search algorithm by a bisection algorithm found in
1543        Press et al. Numerical Recipes in Fortran. This algorithm can be
1544        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
1545        For now, use this algorithm only for TARGET_NEC_SX defined.
1546      - moved the search algorithm into a separate subroutine, that is kept
1547        within the same file for automatic inlining.
1548      - modified catching potential errors
1549    o pkg/ecco:
1550      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
1551    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
1552      - modifications for ALLOW_GENTIM2D_CONTROL
1553      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
1554      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
1555      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
1556      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
1557    o model/src:
1558      - account for moist thermodynamics in (dry) potential temperature equation;
1559        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
1560        and cpl_aim+ocn.
1561      - also switch to standard compiler (gfortran, was using ifort previously)
1562        for fizhi-cs experiments reference output.
1563    o pkg/ctrl:
1564      - 1st step toward generic time-varying control variable (2D) via CPP option
1565        ALLOW_GENTIM2D_CONTROL
1566      - note new namelist ctrl_nml_genarr in data.ctrl
1567    o verification/global_ocean.cs32x15:
1568      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
1569        thsice calling sequence and update "output.icedyn.txt" output file.
1570    o pkg/ptracers:
1571      - from Ryan A.: code to allow to restart a tracer at regular time interval
1572        specifying a reset frequency and a reset-phase (for each tracers).
1573    o pkg/thsice:
1574      - implement new sequence of calls for thsice+seaice:
1575          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
1576          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
1577      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
1578        in CPP_OPTIONS.h) to recover old sequence;
1579      - update diagnostics for Intermediate State thsice diagnostics: now filled
1580        just before advection (instead of just after advection in old sequence);
1581      - update output of experiment offline_exf_seaice (standard test);
1582      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
1583        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
1584    o pkg/aim_v23:
1585      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
1586      - use standard pkg/mdsio routines to read & write CO2 pickup file;
1587      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
1588      - Implement new sequence of calls for seaice advection (with thsice and
1589        seaice diffusion): do ice advection after ice-Thermodynamic (previously
1590        was done before); change aim_do_physics.F (split the bi,bj loops block);
1591      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
1592    o pkg/thsice:
1593      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
1594        where just seaice diffusion is used without seaice-dynamics.
1595    
1596    checkpoint64c (2013/01/18)
1597    o pkg/seaice:
1598      - add a parameter JFNKres_tFac that can replace JFNKres_t
1599        (= JFNKres_tFac*JFNKresidual before JFNK solver)
1600      - add a line search option to the JFNK solver
1601      - move update of u/vIce and computation of initial residual into a separate
1602        routine (same file); makes the code a little easier to read (?)
1603      - the line search requires computation of the residual and for some reason
1604        I cannot do the update of u/vIce at the beginning of the Newton loop
1605        without changing the results, so we move computation of the new residual
1606        also to the end of the Newton loop, even without the line search
1607    o pkg/mdsio:
1608      - write missing value (corresponding to undefined array value) to meta files;
1609        skip this if missing value is one (UNSET_RL would be a better value for the
1610        case of undefined missing value but it's current the default missing-value);
1611        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
1612    o pkg/exf & thsice:
1613      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
1614        diagnostics) even when SHORTWAVE_HEATING is #undef;
1615    o verification/cfc_example:
1616      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
1617        illustrate how to use it).
1618    o verification/offline_exf_seaice:
1619      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
1620        files to only one time-record.
1621      in input.thermo: narrow the 2 bands of low initial ice-concentration near
1622        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
1623        snapshot output; same mcPheePiston value as in thsice with
1624        surf-current=0.2m/s.
1625      in input.thsice: similar set-up as in input.thermo (channel with same seaice
1626        initial conditions).
1627    o verification/cfc_example:
1628      - update file "data" with more standard choice (default rotationPeriod,
1629        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
1630        set deltaTFreeSurf to deltaTtracer) and update the output.
1631    o pkg/layers:
1632      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
1633      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
1634    o verification/offline_exf_seaice:
1635      - set all {field}period to zero for constant-in-time forcing (not tested
1636        anywhere else).
1637    o verification/offline_exf_seaice:
1638      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
1639      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
1640    o model/src:
1641      - implement Finite-Volume method for (hydrostatic) presure gradient
1642        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
1643    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
1644      - In order to be compatible with the default EVP code, this requires changing
1645        the EVP code around a little; and because any small change immediately
1646        breaks the lab_sea.hb87 verification experiment, the reference output is
1647        updated two times (each time the remaining aggrement was only 2 digits):
1648        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
1649        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
1650        The adjoint test lab_sea.evp also needed to be updated.
1651      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
1652        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
1653        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
1654        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
1655        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
1656        kept obscure, because I need to test it a little more.
1657    o pkg/cheapaml:
1658      - fix few incorrect type (_RL/_RS) in subroutine calls.
1659    o pkg/seaice:
1660      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
1661        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
1662    o model/src:
1663      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
1664        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
1665        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
1666    o pkg/cheapaml:
1667      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
1668        update output of experiment cheapAML_box.
1669      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
1670        and set them only in one place (cheapaml_readparms.F).
1671      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
1672      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
1673        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
1674    o model/src/the_main_loop.F:
1675      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
1676    o pkg/seaice:
1677      - remove legacy branch code.
1678      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
1679    o verification/*/code*/SEAICE_OPTIONS.h:
1680      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
1681        SEAICE_CAP_HEFF).
1682    o pkg/cheapaml:
1683      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
1684        to load new forcing fields.
1685      - add missing "_d 0" where it's needed; + some editing (improve indentation).
1686      - remove switch to "-r8" compiler option (no longer needed) in verification
1687        cheapAML_box, keep same output (small trucation error differences).
1688    o verification/offline_exf_seaice:
1689      - add thermodynamics only test.
1690    o verification/cheapAML_box:
1691      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
1692        keep same output (same 14 digits for cg2d).
1693      - switch on "-r8" compiler option (some numerical values are missing
1694        the "_d 0") and update output (only 6 digits for cg2d were preserved).
1695    
1696    checkpoint64b (2012/12/24)
1697    o pkg/cheapaml:
1698      - remove un-used variables (Qnet,EmPmR) from pickup files.
1699      - store tendency of advected variables into cheapaml pickup file
1700        and fix the AB-2 restart.
1701    o verification/offline_exf_seaice and lab_sea adjoint:
1702      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
1703      - switch to 4 time steps in offline, consistent with lab_sea.
1704      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
1705      - update results after change of experiment seaice.
1706    o pkg/seaice:
1707      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
1708        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
1709        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
1710        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
1711    o model/src:
1712      - add run-time parameter to select CG2D solver minimum-residual solution
1713        (in case of a poor convergence).
1714    o pkg/seaice/seaice_lsr.F
1715      - move calculation of matrix coefficients into new
1716        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
1717        file; the main purpose of this change is to be able to reuse the code
1718        in S/R SEAICE_PRECONDITIONER
1719      - modify the computation of the residual so that the mass of sea-ice
1720        is not used twice; this simplifies the calculations, but since
1721        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
1722        not tested in testreport---this does not affect the testreport results.
1723    o verification/seaice_obcs:
1724      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
1725        verification/lab_sea/input.salt_plume; changes results/output.txt*
1726    o model/src:
1727      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
1728    o pkg/seaice:
1729      - improve description of parameters in seaice_fgmres.F and start
1730        cleaning up the code
1731      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
1732        second argument
1733      - add a metric based on grid cell area to SEAICE_SCALPROD; update
1734        results of offline_exf_seaice.dyn_jfnk
1735      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
1736    o pkg/aim_v23:
1737      - fix an other bug in dissipation heating (grid-cell area was missing).
1738    o model/src + pkg/seaice:
1739      - add global (multi-tile) linear solver for pair of tri-diagonal system
1740        along X and Y lines, respectively for U and V component.
1741        Note: 1) MPI and cube-exchange not yet coded.
1742            2) probably not accurate for poorly conditioned / large size problem.
1743      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
1744        default: not compiled and not used.
1745    o pkg/seaice:
1746      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
1747        introduce bi/bj loops and use global_sum_tile_rl instead of
1748        mpi_allreduce in seaice_fgmres.F
1749      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
1750      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
1751      - add a verification experiment for JFNK in offline_exf_seaice
1752    o verification:
1753      - change (for now, only fwd test) offline_exf_seaice experiment:
1754        use a re-entrant channel with idealized coastline (trapezoidal shape)
1755        at southern boundary to explore seaice dynamics and thermodynamics
1756        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
1757        secondary test (input.thsice) use thermodynamics only with SST relaxation.
1758      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
1759    o pkg/exf:
1760      - disable "sstExtrapol" when Nr=1
1761    o verification:
1762      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
1763        to test pkg/cheapaml.
1764    o pkg/aim_v23 & pkg/shap_filt:
1765      - fix dissipation heating (erroneous gravity multiplication factor).
1766    o pkg/seaice:
1767      - remove unused field pressPre from jfnk solver
1768      - rename two subroutines in seaice_preconditioner.F
1769    o eesupp/src:
1770       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
1771    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
1772       - remove wrong parts of the rhs and the lhs (were in there
1773         because I did not understand the concept of this preconditioner)
1774       - add an exchange between u- and v-sweep. This increases communication
1775         by a factor of two but improves the convergence of jfnk. Ideally,
1776         one would like the u- and v-sweep to be independent. So far within
1777         undocumented ifdefs
1778       - reorganize the extra computations for printing the residuals
1779    o tools/genmake2:
1780      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
1781        since it's not necessary (and was preventing to use MNC in some cases).
1782    
1783    checkpoint64a (2012/11/16)
1784    o pkg/autodiff:
1785      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
1786        autodiff_readparms.F no longer depends on calling order (within
1787        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
1788        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
1789        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
1790    o pkg/obcs:
1791      - adding tidal velocity forcing capability to obcs
1792        for usage example, see verification/seaice_obcs/input.tides
1793    o pkg/seaice:
1794      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
1795        SEAICE_LSRrelaxU/V
1796      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
1797    o pkg/aim_v23:
1798      - implement heating from friction (bottom friction and stratospheric drag).
1799    o pkg/shap_filt:
1800      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
1801        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
1802    o model/src:
1803      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
1804        time-constant addMass field from file (addMassFile);
1805      - support for heating due to friction (and Kinetic Energy dissipation):
1806        add option, run-time switch and 3-D field array + support code ; each pkg
1807        or S/R can add heating contribution (if there is a sink of KE); the sum is
1808        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
1809    o pkg/seaice:
1810      - complete merge of ITD code into seaice_growth.F
1811        from MITgcm_contrib/torge/itd/code/
1812        no verification so far, but Torge Martin tested
1813        "1-D test case and Beaufort set up;
1814        deliver okay results after 1 model year."
1815      - complete merge of SEAICE_SIZE.h into all relevant routines
1816      - move computation of eta at Z-points into calc_viscosities
1817        + introduce global field etaZ
1818        + add different methods for computing etaZ, for now the old
1819          method (simple averages of eta to Z-points) is hardwired
1820        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
1821          seaice_preconditioner
1822      - simplify computations for SEAICE_ZETA_SMOOTHREG
1823      - seaice_preconditioner:
1824        + replace one remaining press by pressLoc (mistake)
1825        + adjust printing of residuals
1826      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
1827        + add (SEAICE.h) and rename some counters (initiliased in
1828          seaice_init_fixed.F)
1829        + add _BEGIN/END_MASTER (myThid)  around print statements
1830        + print total number of iterations and failures over SEAICE_monFreq
1831          interval to STDOUT
1832      - move control over output-messages by fgmres to seaice_jfnk to save
1833        some operations
1834      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
1835        in order to make restarts with sol .ne. zero (fgmres with restarts)
1836        (seaice_jfnk.F, seaice_fgmres.F)
1837      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
1838        a serious convergence problem when open boundaries are involved
1839    o pkg/ggl90: fix computation of control volumes for the case of
1840      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
1841      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
1842    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
1843    o pkg/autodiff
1844      - Add inAdMode switch for SEAICEuseDYNAMICS:
1845        SEAICEuseDYNAMICSinAdMode
1846        (extend logic in ADAUTODIFF_INADMODE_SET)
1847    o pkg/seaice
1848      - Step 1 of merging ice-thickness distribution (ITD) code from
1849        MITgcm_contrib/torge/itd/ (author: Torge Martin)
1850        The code implements concept laid out in Thorndike et al. (1975);
1851        code is enabled via CPP flag SEAICE_ITD
1852        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
1853        code is not complete yet!!
1854      - SEAICE_SIZE.h now included in almost all seaice routines
1855    o verification (using seaice):
1856      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
1857        global_ocean.cs32x15.seaice ; update results.
1858      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
1859      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
1860        offline_exf_seaice (previously compiling B-grid).
1861    o pkg/exf:
1862      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
1863        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
1864        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
1865    o pkg/layers (adjust changes from Sept 19):
1866      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
1867        this allows to remove "layers_maxNum" dimension from all layers arrays.
1868    o pkg/layers (adjust changes from Sept 19):
1869      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
1870      - snap-shot extended to all type of layers (not just the 1rst type);
1871      - remove layers variables when corresponding CPP option is undef.
1872    o pkg/layers:
1873      - rename pkg/layers variable and add new output (layer exist & un-weighted
1874        velocity in layer)
1875    o pkg/seaice:
1876      - simplify (?) ocean-drag coefficent computations by using
1877        the same routine in all three solvers (saves some code lines)
1878      - remove global fields DRAGA and DRAGS from C-grid code and
1879        declare them locally in lsr.F (the only place where they are
1880        still used)
1881      - update AD output of lab_sea.evp (very sensitive anyway).
1882    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
1883      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
1884      and SEAICEuseJFNK=.true. A few things to note:
1885      - involves a FGMRES, that is parallel but very inefficient,
1886        because of many scalar products (global sums) in the Gram-Schmidt
1887        orthogonalization method. Needs to be replaced. Original code
1888        from J.-F. Lemieux
1889      - preconditioner for FGMRES is a stripped down version of LSOR
1890      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
1891        preconditioner. For the preconditioner, the default is set to 10.
1892      - Jacobian times vector is computed with finite differences
1893      - marginally related to JFNK-solver: add a smooth regularization for
1894        zeta with tanh that will improve convergence (Lemieux and Tremblay,
1895        2009) for any implicit solver (not implemented for EVP because EVP
1896        does not need this regularization in the first place). Define
1897        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
1898    o eesupp/src:
1899      - check in genmake2 that intrinsic S/R flush is available.
1900      - add S/R to flush IO unit (if intrinsic S/R flush is available)
1901      - flush standard & error msg unit before MPI termination
1902      - if debugMode, flush IO unit after printing msg
1903    o pkg/ctrl:
1904      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
1905        to ctrl_set_unpack_xyz.
1906    
1907    checkpoint64 (2012/10/09)
1908    o pkg/shelfice
1909      - in mom_fluxform.F, mom_vecinv.F:
1910        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
1911        Bug fix KappaRU -> KappaRV
1912        does not change verification/isomip but may change other setups
1913        (presumably constant KappaRU=KappaRV)
1914      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
1915    o pkg/obcs:
1916      - fixed some indexing bugs in obcs_seaice_sponge.F
1917      - added obcs relaxation subroutines for HSALT and HSNOW
1918      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
1919    o pkg/seaice:
1920      - add "multicategory" parameterization for snow in analogy to ice,
1921        default is off for now.
1922    o pkg/obcs:
1923      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
1924        see verification/seaice_obcs/input.seaiceSponge for example application.
1925      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
1926        index setting by master-thread. This fix multi-threads Pb in previous modifs.
1927    o pkg/layers :
1928      - add diagnostics to pkg/layers
1929      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
1930        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
1931    o pkg/generic_advdiff/gad_implicit_r.F :
1932      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
1933    o pkg/seaice/seaice_growth.F:
1934      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
1935    o pkg/obcs:
1936      - change default setting of OBCS_UVICE_OLD from defined to undef;
1937      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
1938        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
1939      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
1940      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
1941        with Southern & Western OB at a tile edge (at least in a simple set-up).
1942    o pkg/obcs:
1943      - change settings of OB index in case OB coincides with tile edge (shared by
1944        2 tiles), so that common OB location is registered by both tiles (instead of
1945        only 1). However, for Southern and Western OB, index value = 0 is not
1946        recognized as valid OB index (=default null value) and needs to be fixed.
1947      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
1948      - new parameter "OB_indexNone" for null index value (for now, still zero)
1949        to replace hard-coded null index value of zero.
1950    o pkg/exch2:
1951      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
1952        always check buffer-size (but outside the loop); move checking for valid
1953        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
1954        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
1955    o pkg/ctrl (pack & unpack):
1956      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
1957        (locally defined) for different variables (+ remove the variable-specific
1958        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
1959        (to be extended to other local file names in ctrl.h).
1960    o pkg/flt:
1961      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
1962    o pkg/mdsio:
1963      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
1964    o tools/genmake2:
1965      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
1966        (added by Alistair in version 1.51 for building without make depend);
1967      - remove Header files list (H_SRC_FILES) from the dependence of targets
1968         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
1969        place in version 1.23): this save going through staf when unrelated header
1970        file has been modified.
1971       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
1972        "make depend" step, still need to do "make links" before "make adtaf".
1973    o eesupp/src (+ few pkg src files) & genmake2:
1974      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
1975      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
1976      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
1977         upper/lower case ; account for space between "#" and undef/define)
1978    o pkg/flt (with exch2):
1979      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
1980      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
1981    
1982    checkpoint63s (2012/09/05)
1983    o pkg/ecco:
1984      - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.
1985      - add more relevant #ifdef ALLOW_SMOOTH ones.
1986      - sort out useAtmWind, useSMOOTH, ctrlSmoothCorrel2D.
1987    o pkg/ctrl:
1988      - CTRL_OPTIONS.h : document CPPs related to smoothing; ALLOW_SMOOTH_CORREL2D/3D,
1989        ALLOW_CTRL_SMOOTH, ALLOW_SMOOTH_CTRL2D, ALLOW_SMOOTH_CTRL3D.
1990      - ctrl.h : document run time params doInitXX, doMainPack, doMainUnpack, doPackDiag,
1991        doSinglePrecTapelev (audodiff param!), ctrlSmoothCorrel2D (new) and
1992        ctrlSmoothCorrel3D (new).
1993        The added ctrlSmoothCorrel2D/3D replace the old ALLOW_SMOOTH_CORREL2D/3D CPP.
1994      - ctrl_readparms.F : initialise ctrlSmoothCorrel2D/3D and read from namelist.
1995      - ctrl_init.F ctrl_pack.F ctrl_unpack.F : switch off ustress/vstress
1996        controls when useAtmWind, and vice versa.
1997      - ctrl_map_ini_ecco.F : UVEL0, VVEL0, edtaux, edtauy cannot be smoothed as tracers.
1998      - ctrl_get_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL2D with
1999          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel2D, IF useSMOOTH.
2000      - ctrl_map_ini_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL3D with
2001          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel3D, IF useSMOOTH.
2002      - ctrl_set_pack_xy[z].F, ctrl_set_unpack_xy[z].F:
2003        replace ALLOW_SMOOTH_CORREL2D/3D brackets with ctrlSmoothCorrel2D/3D.
2004    o pkg/smooth:
2005      - remove un-necessary includes.
2006      - remove ALLOW_SMOOTH*D and ALLOW_SMOOTH_CORREL*D brakets.
2007        Those CPP options were never defined, and not necessary.
2008    o model/src:
2009      - fix CPP brackets in ini_mixing.F (GM_background_K belongs to gmredi).
2010      - standard treatment of useSMOOTH.
2011    o pkg/autodiff:
2012      - add LOGICAL useGGL90inAdMode, useGGL90inFwdMode, useSALT_PLUMEinAdMode,
2013        useSALT_PLUMEInFwdMode allowing to switch off ggl90 and salt_plume adjoint.
2014    o pkg/exch2:
2015      - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)
2016        + start to remove ALWAYS_USE_MPI in source code that TAF does not see.
2017      - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag
2018        and tiles to process mapping.
2019      - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)
2020        moving /EXCH2_FILLVAL_RX/ & /W2_EXCH2_COMMFLAG/ to W2_EXCH2_TOPOLOGY.h;
2021        rename "exch2_tProc" to "W2_tileProc" and move seting of e2FillValue_RX
2022        from w2_eeboot.F to w2_readparms.F.
2023    o eesupp/src:
2024      - set exchNeedsMemsync & exchUsesBarrier according to "usingMPI" (instead of
2025        ALWAYS_USE_MPI) + moved from ini_communication_patterns.F to eeset_parms.F;
2026        also move setting of exchCollectStatistics from exch_init.F to eeset_parms.F
2027      - in eedie.F and all_proc_die.F, always call MPI_FINALIZE when ALLOW_USE_MPI
2028        is defined (remove condition on usingMPI) to match cases where MPI_INIT
2029        has been called.
2030      - fix bug I put in previous modif of exch_sm_3d_rx.template (not much used);
2031      - change default (non-MPI) value of myPid (from 1 to 0) to match MPI settings
2032        (so that on 1 proc, get same myPid independently of usingMPI)
2033      - add a stop if multi-procs but usingMPI=F ; stop also if usingMPI=T and
2034        useCubedSphereExchange with EXCH-1 (safer).
2035      - add "if usingMPI" where it was missing (+ start to remove ALWAYS_USE_MPI).
2036    o pkg/ggl90:
2037      - fix bug in filling corner mask array "mskCor" (FILL_CS_CORNER_TR_RL call)
2038        used in ALLOW_GGL90_SMOOTH code.
2039    o pkg/flt:
2040      - fix typo in FLT_WITHOUT_Y_PERIODICITY (the effect was to ignore stopping
2041        floats at the Southern end of the domain).
2042    o eesupp/inc:
2043      - add a list of CPP-options which can be set by Makefile (DEF_IN_MAKEFILE.h);
2044        but not used (and not to be used) anywhere, just for documentation.
2045    o pkg/autodiff, exf, ptracers & seaice (AD & TL output):
2046      - comment out the very nasty "writeBinaryPrec = writeStatePrec" line, since:
2047        a) can damage previously written records in any other multi-record files.
2048        b) if needed, can easily do it cleanly, by calling S/R WRITE_REC_3D_RL/S.
2049    o tools/genmake2:
2050      - define variable MAKE within Makefile and use it in place of 'make';
2051      - update AD_CONFIG.h (if needed) before building any of the executable
2052        (forward, adjoint or tangent-lin); this involves a 2nd invocation of make;
2053        and add the usual #ifndef/#define AD_CONFIG_H in AD_CONFIG.h;
2054      - always print usual warning comment 'this file is automatically generated'
2055        from script convert_cpp_cmd2defines (+ remove this warning from genmake2).
2056    o pkg/cheapaml:
2057      - updated to correspond to the code used in accepted paper (Nico Wienders).
2058    o pkg/exf:
2059        added run time switch useAtmWind to replace ALLOW_ATM_WIND cpp switch.
2060        ALLOW_ATM_WIND now just sets the useAtmWind default (see exf_readparms.F)
2061        and force defines ALLOW_BULKFORMULAE (EXF_OPTIONS.h).
2062    o pkg/exf, autodiff, ctrl, ecco and seaice:
2063        remove ALLOW_ATM_WIND brackets, or replace them with useAtmWind ones.
2064    o pkg/ctrl, ecco:
2065        allow to compile both ALLOW_U/VSTRESS_CONTROL and ALLOW_U/VWIND_CONTROL.
2066        Depending on useAtmWind, one is inactive, and the other is active (see
2067        exf_getffields.F/exf_getsurfacefluxes.F).
2068    o tools/genmake2:
2069      - improve error msg when failing in 2nd test of check_for_broken_Ff
2070      - fix option '-makefile' short-name (-mf according to genmake2 -help)
2071      - source local config file "genmake_local" just after processing the genmake2
2072        command arguments (previously done before processing arg).
2073    o pkg/grdchk:
2074      - add a call to TURNOFF_MODEL_IO for Tangent-Linear run (in this case, call
2075        to this routine from cost_final has been dropped in g_cost_final)
2076      - improve printed information (more explicit msg, no longer using "print *,"
2077         fix fcpertminus printed value).
2078    o model/src:
2079      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
2080        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
2081        this prevents getting cost-funct reset in adinitialise_varia recomputations.
2082    o pkg/dic:
2083      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
2084        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
2085    o pkg/grdchk:
2086      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
2087      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
2088    o pkg/autodiff/ctrl/grdchk :
2089      - attempt to sort out what works and what does not,
2090        with regard to I/O, and to warn/stop accordingly.
2091    o pkg/grdchk:
2092      - attempt to fix grdchk in the case of useSingleCpuIO.
2093      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
2094       statements were moved from grdchk_main.F and into
2095       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
2096      - a global sum is applied to record numbers icvrec/layer
2097       out of grdchk_loc so that they be passed to I/O routines.
2098    o pkg/smooth:
2099      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
2100        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
2101    o verification/testreport:
2102      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
2103      - can also use compressed (gzip) reference output file;
2104      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
2105        to be easier to collect by testreport.
2106      - update existing TLM output (half out-of-date by more than 3 yrs).
2107      - report NETCDF & LAPACK settings (from genmake2) in output dir.
2108      - report run-time in each individual summary (previously only for AD test);
2109        for TLM test, add also TAF version.
2110      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
2111    
2112    checkpoint63r (2012/08/15)
2113    o tools/genmake2:
2114      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
2115    o pkg/ecco/ecco_cost_final.F :
2116      - fix fc print statements (to stdout and costfunction0000) so
2117        that the printed value is always after the global sum.
2118    o pkg/seaice/seaice_dynsolver.F :
2119      - fix ice strength assymptote at SEAICE_area_max<1
2120        (no change for the standard case of SEAICE_area_max=1)
2121    o some cleaning:
2122      - pkg source files: ensure that all *.F files from each pkg included the
2123        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
2124        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
2125        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
2126        includes;
2127      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
2128      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
2129        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
2130        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
2131      - update option-file CPP_OPTIONS.h of all AD experiments:
2132        * no longer include PACKAGES_CONFIG.h ;
2133        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
2134        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
2135          including ECCO_CPPOPTIONS.h).
2136    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
2137      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
2138        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
2139        not necessary accurate).
2140      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
2141        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
2142        deliberately break compilation (a remainder that it needs to be customized)
2143      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
2144      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
2145      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
2146    o tools/genamke2:
2147      - check for lapack.
2148    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
2149      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
2150        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
2151        from both packages.
2152      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
2153      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
2154      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
2155        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
2156    o pkg/cost : add comments to explain special and/or untested setups.
2157    o pkg/exf:
2158      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
2159        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
2160    o verification/*/code_ad:
2161      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
2162      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
2163      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
2164        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
2165    o pkg/seaice :
2166      - added possibility to change ice strength/PRESS0 relationship to
2167        HEFF, according to the following run time parameters
2168        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
2169        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
2170        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
2171    o pkg/ggl90 :
2172      - added run time flag mxlSurfFlag to include the code that ensure
2173        mixing between first and second level (previously included as a comment)
2174    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
2175      - add test of newly added dumpAdByRec=T option where
2176        we write all records to one file per variable.
2177    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
2178      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
2179        to check that this code is ok with taf and compiles in adjoint.
2180    o pkg/autodiff :
2181      - added run time param dumpAdByRec : ad dump format switch.
2182        If true then write all records to one file per variable.
2183        Else write one file per record (remains the default).
2184      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
2185    o pkg/seaice:
2186     - Added SEAICEuseTILT run time switch : if set to
2187       false then omit the tilt term in seaice dynamics.
2188     - Fix free drift calculation.
2189    o pkg/shelfice:
2190      When initializing SHELFICEDragQuadratic, set default to be
2191      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
2192      but retain option to set it independently
2193      (inconsistenty spotted by Veronique Dansereau)
2194    o eesupp/inc:
2195      - in EEPARAMS.h, add real-type constant for some frequently used simple number
2196         (0,1,2,1/2), with name explicitly referring to RS/RL type.
2197    o model/src:
2198      - move balancing of relaxation terms to new S/R balance_relax.F.
2199    o pkg/autodiff:
2200      re-write active I/O high-level (control) S/R:
2201      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
2202      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
2203      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
2204        MDS_READ/WRITE_FIELD); change loops to multi-threads.
2205      - update and merge active_file_control_slice.flow into active_file_control.flow
2206      - update the calls in lower level S/R (active_file.F, active_file_g.F and
2207        active_file_ad.F) keeping the argument list and function unchanged.
2208      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
2209        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
2210      - new low-level active I/O routines, one for each type (RL/RS), for active var
2211        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
2212        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
2213        right type.
2214    o autodiff and RS=real*4:
2215      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
2216        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
2217      - change argument type of 3-D mask argument to _RS to match type in the call
2218        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
2219    o pkg/thsice:
2220      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
2221      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
2222        fresh-water flux: uniform correction or proportional to local precip.
2223    o pkg/ctrl:
2224      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
2225      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
2226                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
2227      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
2228    
2229    checkpoint63q (2012/07/30)
2230    o pkg/autodiff:
2231      note about monitor and snap-shot of ad-variables:
2232      a) need to apply ADEXCH before monitor or output of ad-vars to include
2233       overlap contributions (was done for adjDump but missing for monitor).
2234      b) since ADEXCH implies adding overlap values to interior array, machine
2235       truncation error is expected when adding an ADEXCH call in the middle of
2236       the time-stepping (although mathematically identical).
2237      modifs:
2238      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
2239        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
2240      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
2241        apply ADEXCH before monitor or snap-shot of ad-variables:
2242           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
2243      - implement new method (copy+adexch) for snap-shot and monitor of main model
2244        ad-vars (initially not used by default -> output unchanged).
2245      - change default (set to 2) to use new method and update few output_adm.txt
2246        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
2247        and both tutorial_tracer_adjsens tests).
2248      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
2249        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
2250    o pkg/ctrl:
2251      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
2252      generic control variables via
2253      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
2254      Only required customization should be S/R ctrl_map_ini_genarr.F
2255      (routine in repository contains example)
2256    o pkg/exf:
2257      - fix and refine checking of surface-relaxation setting when using EXF
2258    o verification (adjoint exp):
2259      - reduce length of simulation by half for experiment global_ocean.cs32x15
2260        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
2261    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
2262      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
2263        of KE that can occur with aggressive optimization
2264      + put quadratic bottom drag calculation in separated loops (only done if
2265        using bottomDragQuadratic)
2266    o model/src: CG2D_NSA
2267      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
2268         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
2269      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
2270         change cg2d residual target to be expressed in Wunits (=> do not normalise
2271         RHS ; this fix global_max Pb with TAF); update output.
2272    o verification/tutorial_tracer_adjsens:
2273       improve parameter consistency (and get rid of warnings):
2274       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
2275       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
2276       - use staggerTimeStep (for stability) in som81; use default rotation period.
2277    o pkg/exch2:
2278      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
2279        reset to 0 = 1 long line in X)
2280    o pkg/mdsio:
2281      - fix reading of dimensions from meta file for large-size domain
2282    o model/src:
2283      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
2284      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
2285        Cubed-Sphere Exch with CS-corners inside the domain;
2286        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
2287        globalArea and to set hasWetCSCorners.
2288      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
2289        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
2290      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
2291        useCDscheme and useCubedSphereExchange).
2292    o pkg/seaice/seaice_growth.F :
2293      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
2294        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
2295        when the previous code was not correct.
2296      - in all cases diagnoze the boundary condition mismatch to SIaaflux
2297      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
2298        that term to QNET (essentially to set the melt/freeze water to 0degC).
2299        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
2300    o verification/global_ocean.cs32x15/input.seaice :
2301      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
2302      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
2303      - update results (output.seaice.txt) accordingly.
2304    o verification/lab_sea/input/data.seaice :
2305      - remove SEAICEheatConsFix, which is now be tested
2306        in global_ocean.cs32x15. The presently coded fix
2307        is only consistent with real fresh water + nlfs.
2308      - update results (output.txt) accordingly.
2309    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
2310    o AD_CONFIG.h file:
2311      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
2312      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
2313        add it explicitly in each fortran src file where it is needed.
2314        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
2315        thus introducing potentially wrong dependency; therefore, better to include
2316        it only where it's really needed, and after any other included OPTIONS file
2317        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
2318        or ALLOW_TANGENTLINEAR_RUN).
2319    
2320    checkpoint63p (2012/07/06)
2321    o pkg/autodiff:
2322      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
2323      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
2324        which are now read from new parameter file "data.autodiff" (inAdExact
2325        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
2326      - add file "data.autodiff" in all verification/*/input_ad/ directories.
2327      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
2328        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
2329    o verification/tutorial_tracer_adjsens/
2330      - add extra sub-verification which uses "SOM" advection scheme
2331        (2nd Order-Moment Advection Scheme, Prather Limiter) with
2332          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
2333        and in data:
2334          multiDimAdvection=.TRUE.,
2335          tempAdvScheme=81,
2336          saltAdvScheme=81,
2337    o model/src:
2338      - introduce ALLOW_BALANCE_RELAX which allow the removal
2339       of the global mean of relaxation terms by setting
2340       balanceThetaClimRelax and balanceSaltClimRelax
2341      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
2342       This case is now treated appropriately in seaice_growth.F
2343    o pkg/seaice:
2344      - do balanceEmPmR and balanceQnet based on the net fluxes
2345        (SItflux) that enter the ocean+ice system rather than QNET
2346        and EMPMR. Works best in real fresh water.
2347      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
2348        out of the diagnotics bloc, and stored in global arrays.
2349    
2350    checkpoint63o (2012/06/29)
2351    o vertical mixing schemes:
2352      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
2353      - replace computation of density (in Function STATE1, opps_calc.F) by a call
2354        to S/R FIND_RHO_SCALAR
2355      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
2356        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
2357        affects output (vermix.ggl90) at truncation level.
2358    o testreport:
2359      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
2360        (nSx,nSy) for the number of threads (from eedata.mth)
2361    o model/src:
2362      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
2363        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
2364    o verification/tutorial_tracer_adjsens/
2365      - compile with ALLOW_CG2D_NSA
2366      - run with nonlinFreeSurf=3
2367      - update reference output_adm.txt
2368    o tools/genmake2:
2369      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
2370        refine usePROFILES switching off (only when NetCDF is not available).
2371    o verification (atmospheric set-up):
2372      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
2373    o pkg/profiles : refine profiles and files handling.
2374    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
2375    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
2376      - changes to use model/src/the_main_loop.F rather than the ecco version
2377        in ecco type adjoint runs.
2378    o model/src:
2379      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
2380      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
2381      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
2382    o model/src:
2383      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
2384        update output of test experiment bottom_ctrl_5x5.
2385    o pkg/generic_advdiff:
2386      - implement vertical bi-harmonic diffusion (for now, only for T & S and
2387        only explicitly).
2388    o verification/bottom_ctrl_5x5/
2389      update reference output (results changed quite some time ago,
2390      not sure when; but new reference results look ok in terms of grdchk)
2391    o verification/1D_ocean_ice_column/
2392      For verification purposes, the exact adjoint rather than an approx.
2393      should be used (e.g., to comare against F.D. or TLM).
2394      removed autodiff_inadmode*_ad.F routines in code_ad/
2395      Update results/ accordingly.
2396    o pkg/cal:
2397      - change cal_getdate.F so that output date is function of input time only
2398        (less ambiguous, not mixed up with input iteration number).
2399      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
2400    o pkg/diagnostics:
2401      - implement calendarDumps also for stats-diags
2402      - implement calendarDumps also for snap-shot output (negative freq)
2403      - for now, ignores calendarDumps if non-zero phase-lag.
2404    
2405    checkpoint63n (2012/06/04)
2406    o model/src:
2407      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
2408        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
2409      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
2410        similar to calc_r_star.F); update results of experiment internal_wave and
2411        tutorial_global_oce_in_p (affected @ truncation level).
2412    o pkg/shelfice:
2413      - add parameterisation of advective-diffusive flux into the ice shelf
2414        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
2415      - simply eps3/3a computation
2416    o eesupp:
2417     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
2418       between tiles, just fill-in edges assuming locally periodic subdomain) and
2419       add corresponding exchange subroutines (EXCH0);
2420     - new CG-solver version (_EX0) for disconnected-tiles special case.
2421    o model/src (CG-solvers):
2422     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
2423       (similar final residual output and max-Iter number as with standard version);
2424     - allows to store and use lowest-residual solution (standard & _SR versions);
2425     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
2426     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
2427    o eesup/src:
2428     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
2429       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
2430    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
2431    
2432    checkpoint63m (2012/04/27)
2433    o pkg/shelfice:
2434     - account for partical cells in surface level below ice-shelf for hydrostatic
2435       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
2436    o ad test experiments:
2437     - update and rename to "ad_optfile.local" local AD-optfile specific to a
2438       particular adjoint verification experiment (in verification/*/code_ad/)
2439    o pkg/seaice & pkg/exf:
2440     - Part two of ECCO-CLIVAR code merges.
2441       Completes merge of seaice area relax. code.
2442       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
2443       to be set in EXF_OPTIONS.h since this pkg controls its I/O
2444       (and avoids second CPP option in SEAICE_OPTIONS.h)
2445     - change default value of costIceStart & costIceEnd to a valid date.
2446     - add snowPrecip to HSNOW in seaice_growth
2447    o pkg/ptracers:
2448     - move ptracers summary and setup check into separated S/R ; add a check for
2449       valid PTRACERS_Iter0 value (error+stop or just warning).
2450    o pkg/cal (+ pkg/ecco):
2451     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
2452       as input; and for AD, unless both are not differentiable (e.g., k index)).
2453    o model/src:
2454     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
2455       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
2456       temporary set to usingZCoords value (to be changed to F when using shelfice).
2457     - hydrostatic pressure: implement partial cell near the surface also for
2458       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
2459       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
2460    o pkg/ctrl/ctrl_init.F:
2461     - add a formal parameter to s/r ctrl_init_rec to print
2462       xx_$(ctrl_valiable)_file for easier debugging
2463     - move call of cal_* routines into the if-block where they are really
2464       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
2465       to specify a startdate
2466    o pkg/seaice:
2467     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
2468       global_ocean.cs32x15/code versions).
2469     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
2470       verification experiment global_ocean.cs32x15.seaice and update results.
2471    o pkg/exf:
2472     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
2473       (according to useExfYearlyFields).
2474    o pkg/cal:
2475     - move calendar setting & summary (previously in cal_readparams.F) into new
2476       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
2477       length of the simulation is set (after SET_PARMS call); This is an attempt
2478       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
2479     - For safety: keep a record of pkg/cal parameter settings status
2480               to allow to STOP if one pkg/cal S/R is called too early.
2481     - add a stop in all basic pkg/cal subroutines if called before setting is done.
2482     - modify cal_getdate.F: stop when nothing was returned;
2483       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
2484       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
2485    
2486    checkpoint63l (2012/04/04)
2487    o pkg/bbl:
2488      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
2489        update global_with_exf output.yearly.txt file.
2490    o pkg/cal:
2491      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
2492      - remove 2 unsused and very short (1 line only) functions ;
2493      - remove unsused subroutines from AD-Diff list.
2494    o model/src:
2495      - start to implement clean wait to stop in initialization S/R (config_check.F,
2496         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
2497    o folowing PRINT_MESSAGE changes:
2498      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
2499    o pkg/bbl:
2500      - modification so it can work with z*
2501      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
2502      - global_with_exf/input.yearly verification; changes output.yearly.txt
2503    o eesupp/src:
2504      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
2505        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
2506      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
2507        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
2508      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
2509      - when using MPI, always set usingMPI=T ; set default accordingly and stop
2510        if not consistent.
2511      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
2512        argument is zero (in case called within single-thread section).
2513    o pkg/fizhi:
2514        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
2515        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
2516    o pkg/exch2:
2517      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
2518        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
2519      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
2520        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
2521        with bad ones coming from a not-yet-updated halo.
2522        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
2523    o pkg/frazil:
2524        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
2525        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
2526    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
2527    o verification/lab_sea
2528      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
2529      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
2530      * nTimeSteps 3 -> 4
2531      * changed reference output accordingly
2532    o pkg/ctrl:
2533      * fix ctrl_get_gen for xx_sst, xx_sss
2534    o pkg/fizhi:
2535      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
2536        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
2537      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
2538        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
2539        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
2540    o pkg/gmredi:
2541      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
2542    o pkg/fizhi:
2543      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
2544        (old)aces open64 tuv test.
2545    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
2546    o pkg/mom_vecinv:
2547      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
2548        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
2549        with non-lin free-surf).
2550    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
2551      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
2552      some compilers (gfortran 4.6.0 on MacOS)
2553    o momentum:
2554      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
2555        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
2556        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
2557    
2558    checkpoint63k (2012/03/17)
2559    o model/src:
2560       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
2561         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
2562       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
2563         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
2564    o model/src: solve_*diagonal.F
2565       - replace division with multiplication by inverse (similar to original version)
2566         update output of AD exp. global_ocean.90x40x15.
2567       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
2568         to enable the use of the vectorized & differentiable solve_tridiagonal.F
2569       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
2570         vertical advection (to get solve_tridiagonal tested in AD mode).
2571    o pkg/seaice: ECCO-CLIVAR merge:
2572      1. seaice AREA relaxation
2573         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
2574         * runtime flag: SEAICE_tauAreaObsRelax
2575      2. modified global mean cost imbalance code: CPP option
2576          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
2577    o another iteration on solve_*diagonal.F
2578       Make choices independent of AUTODIFF
2579       Default will be the adjoinable vectorized version.
2580       Alternative choices are:
2581       * non-adjoinable original version with low memory footprint:
2582         #define SOLVE_DIAGONAL_LOWMEMORY
2583       * still adjoinable but does not vectorize (k as inner-most loop):
2584         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
2585    o testreport
2586     - add option to use a home made wrapper around "make"
2587     - remove MITGCM_IEEE env. variable (no longer active)
2588    o pkg/shelfice
2589     - improve computation of friction velocity for velocity dependent
2590       exchange coefficients: include velocities into SHELFICEBoundaryLayer
2591       block to average velocities vertically
2592     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
2593    o Modify diagonal solvers, now three versions (upon request):
2594      #ifndef SOLVE_DIAGONAL_AUTODIFF
2595        1. default version (dating back a while ago)
2596      #else /* def SOLVE_DIAGONAL_AUTODIFF */
2597      # ifdef SOLVE_DIAGONAL_KINNER
2598        2. adjoinable version with k-innermost loop (G. Forget)
2599      # else
2600        3. adjoinable vectorized version of 2.
2601      # endif
2602      #endif /* SOLVE_DIAGONAL_AUTODIFF */
2603      All flags are currently set within routines, but could/should be moved to CPP-options.
2604      Array bounds for 1. are as before, for 2.,3. cover the entire domain
2605      (could be changed for 1. too).
2606    o verification/lab_sea (fwd):
2607      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
2608        use 7 categories (except hb87), new solve4temp params (except salt_plume),
2609        constant salinity (=4) or variable salinity (salt_plume) done through
2610        SItracer.
2611    o pkg/seaice:
2612      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
2613      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
2614         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
2615        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
2616        SEAICE_freeze got retired) but already better than previously with
2617        SEAICE_freeze=123456.7 deg.C;
2618      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
2619        (safer multi-threaded setting); always set SEAICEuseEVP;
2620      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
2621        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
2622        stop if multiple specifications for the same coeff; make sure default
2623        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
2624    o pkg/obcs:
2625      - allow to switch to upwind 1rst order advection scheme for the advective
2626        flux computation at the open-boundary; disabled for adjoint built.
2627    o pkg/ptracers:
2628      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
2629      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
2630      - add parameter to decide when to start a tracer; use internal flag to
2631        know which tracer to step-forward; switch this internal flag at the top
2632        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
2633        for adjoint built.
2634    o pkg/seaice:
2635      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
2636      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
2637      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
2638    o pkg/ecco:
2639      - fix writing of output file DiagnosCost_ClimSalt/Theta
2640        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
2641    o pkg/seaice:
2642      - add missing initialisation of COR_ICE array in dynsolver.F
2643      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
2644        compiled either way, and is tested in all exps (multidim was only tested
2645        in lab_sea ad before).
2646      - cosmetic change to prepare for future addition of ITD. no change to results.
2647        no defaults change.
2648      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
2649      - by lack of adequate verification experiments, I further used custom versions
2650        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
2651        should be correct.
2652      - avoid recomputations in ad.
2653    o array initialisation in adjoint mode:
2654      1) pkg/mom_common/mom_calc_ke.F:
2655        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
2656        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
2657        part this initialisation is gone, resulting in Floating Point Exception
2658        (caught by open64 compiler with debug option).
2659      2) model/src/convective_weights.F
2660        set output convectCount over the full array range (instead of doing
2661        an update): this fix a similar issue when called within recomputation (adjoint)
2662        which could by-pass the initialisation (normally done in the caller S/R).
2663    o pkg/seaice:
2664      - final version of turbulent flux params, as agreed at MIT ice meet:
2665           SEAICE_mcPheePiston (default is ~ 0.000875)
2666           SEAICE_mcPheeTaper (default is 0.)
2667           SEAICE_frazilFrac (defualt is 1.)
2668           SEAICE_mcPheeStepFunc (default is false)
2669      - changes results at trunction error level
2670      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
2671    o added pkg/frazil:
2672      - see frazil_description.tex for details
2673      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
2674    o pkg/shelfice/shelfice_thermodynamics.F
2675      - fix exponents for velocity dependent exchange coefficients: change
2676        from 2/3(=0) to 0.66666666666666667
2677      - move computation of velocity dependent exchange coefficients into
2678        separate loop, so that it applies to both thermodynamics
2679      - move some divisions by constants out of loops
2680    
2681    checkpoint63j (2012/02/16)
2682    o pkg/seaice:
2683      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
2684      - SItracer:  added run time params, and allow coupling to ocn salinity.
2685    o pkg/seaice: remove (almost) all divisions by constants within loops
2686      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
2687      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
2688      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
2689      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
2690    o pkg/seaice :
2691      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
2692        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
2693    - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.    - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
2694    - add permanent SItflux diag that corresponds to TFLUX but includes    - add permanent SItflux diag that corresponds to TFLUX but includes
2695    ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.      ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
2696    - allow activation/testing of a fix for suspected missing term in    - allow activation/testing of a fix for suspected missing term in
2697    ocn-ice heat budget (to be confirmed). To test this, you want to      ocn-ice heat budget (to be confirmed). To test this, you want to
2698    undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param      undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
2699    SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.      SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
2700    - no change in results, fwd or ad.    - no change in results, fwd or ad.
2701  o global_ocean.cs32x15/results: three changes following from the pkg/seaice commit below.  o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
2702    - switch to variable freezing point.    - switch to variable freezing point.
2703         Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.         Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
2704    - bug fix : the sublimation term that was missing is now activated.    - bug fix : the sublimation term that was missing is now activated.
2705         Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.         Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
2706    - bug fix : flooding sign term for SIsal0.NE.0.    - bug fix : flooding sign term for SIsal0.NE.0.
2707         Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.         Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
2708  o pkg/seaice:  o pkg/seaice:
2709    - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT    - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
2710   is now the default, and the old default constant freezing point is recovered with      is now the default, and the old default constant freezing point is recovered
2711   SEAICE_tempFrz0    = -1.96,      with SEAICE_tempFrz0    = -1.96,
2712   SEAICE_dTempFrz_dS = 0.,           SEAICE_dTempFrz_dS = 0.,
2713    - retire SEAICE_freeze that was the old way of specifycing the constant freezing point.    - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
2714    - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.    - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
2715    - bug fix (thanks to M. Losch) : the sublimation term that was missing is now    - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
2716   activated. To reproduce old results that had this bug define SEAICE_DISABLE_SUBLIM.      activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
2717    - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)    - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
2718   was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).      was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
2719    - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in    - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
2720   seaice_growth r149 for legacy branch (no results change).      seaice_growth r149 for legacy branch (no results change).
2721    - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code from I. Fenty).    - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
2722    - results did not change except for global_ocean.cs32x15, mostly due to the switch      from I. Fenty).
2723    to variable freezing point (see above item for detail).    - results did not change except for global_ocean.cs32x15, mostly due to the
2724        switch to variable freezing point (see above item for detail).
2725  o pkg/thsice:  o pkg/thsice:
2726    - fix and simplify interface to salt_plume pkg ; diagnose directly amount of    - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
2727      seawater freezing in thsice_calc_thickn (not used).      seawater freezing in thsice_calc_thickn (not used).
2728  o pkg/seaice: turbulent flux term specification via run time params.  o pkg/seaice: turbulent flux term specification via run time params.
2729    - replace CPP switches with run time switches to facilitate testing    - replace CPP switches with run time switches to facilitate testing
2730    - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX, GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR    - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
2731                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
2732    - added runtime parameter : SEAICEturbFluxFormula    - added runtime parameter : SEAICEturbFluxFormula
2733    - move Mcphee constants to SEAICE_PARAMS.h    - move Mcphee constants to SEAICE_PARAMS.h
2734    - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;    - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
2735      SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply); remove               SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
2736      seaice_summary call (moved to seaice_init_fixed)               remove seaice_summary call (moved to seaice_init_fixed)
2737    - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on    - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
2738      SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)      SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
2739    - seaice_summary.F : add missing report of read turbulent flux term set up (and SITRACER).    - seaice_summary.F : add missing report of read turbulent flux term set up
2740    - seaice_check.F : check range; inform and stop if retired CPPs are used (incl. SEAICE_AGE).                         and SITRACER.
2741      - seaice_check.F : check range; inform and stop if retired CPPs are used
2742                         (incl. SEAICE_AGE).
2743    - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without    - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
2744          CPP switch, same computation as before for the different options.           CPP switch, same computation as before for the different options.
2745    - change results at the truncation level.    - change results at the truncation level.
2746  o pkg/seaice:  o pkg/seaice:
2747    - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:    - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:

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