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revision 1.1424 by mlosch, Thu May 5 09:24:44 2011 UTC revision 1.1726 by jmc, Tue Aug 28 21:13:08 2012 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/ctrl:  o tools/genmake2:
8      - define variable MAKE within Makefile and use it in place of 'make';
9      - update AD_CONFIG.h (if needed) before building any of the executable
10        (forward, adjoint or tangent-lin); this involves a 2nd invocation of make;
11        and add the usual #ifndef/#define AD_CONFIG_H in AD_CONFIG.h;
12      - always print usual warning comment 'this file is automatically generated'
13        from script convert_cpp_cmd2defines (+ remove this warning from genmake2).
14    o pkg/exf:
15        added run time switch useAtmWind to replace ALLOW_ATM_WIND cpp switch.
16        ALLOW_ATM_WIND now just sets the useAtmWind default (see exf_readparms.F)
17        and force defines ALLOW_BULKFORMULAE (EXF_OPTIONS.h).
18    o pkg/exf, autodiff, ctrl, ecco and seaice:
19        remove ALLOW_ATM_WIND brackets, or replace them with useAtmWind ones.
20    o pkg/ctrl, ecco:
21        allow to compile both ALLOW_U/VSTRESS_CONTROL and ALLOW_U/VWIND_CONTROL.
22        Depending on useAtmWind, one is inactive, and the other is active (see
23        exf_getffields.F/exf_getsurfacefluxes.F).
24    o tools/genmake2:
25      - improve error msg when failing in 2nd test of check_for_broken_Ff
26      - fix option '-makefile' short-name (-mf according to genmake2 -help)
27      - source local config file "genmake_local" just after processing the genmake2
28        command arguments (previously done before processing arg).
29    o pkg/grdchk:
30      - add a call to TURNOFF_MODEL_IO for Tangent-Linear run (in this case, call
31        to this routine from cost_final has been dropped in g_cost_final)
32      - improve printed information (more explicit msg, no longer using "print *,"
33         fix fcpertminus printed value).
34    o model/src:
35      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
36        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
37        this prevents getting cost-funct reset in adinitialise_varia recomputations.
38    o pkg/dic:
39      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
40        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
41    o pkg/grdchk:
42      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
43      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
44    o pkg/autodiff/ctrl/grdchk :
45      - attempt to sort out what works and what does not,
46        with regard to I/O, and to warn/stop accordingly.
47    o pkg/grdchk:
48      - attempt to fix grdchk in the case of useSingleCpuIO.
49      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
50       statements were moved from grdchk_main.F and into
51       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
52      - a global sum is applied to record numbers icvrec/layer
53       out of grdchk_loc so that they be passed to I/O routines.
54    o pkg/smooth:
55      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
56        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
57    o verification/testreport:
58      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
59      - can also use compressed (gzip) reference output file;
60      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
61        to be easier to collect by testreport.
62      - update existing TLM output (half out-of-date by more than 3 yrs).
63      - report NETCDF & LAPACK settings (from genmake2) in output dir.
64      - report run-time in each individual summary (previously only for AD test);
65        for TLM test, add also TAF version.
66      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
67    
68    checkpoint63r (2012/08/15)
69    o tools/genmake2:
70      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
71    o pkg/ecco/ecco_cost_final.F :
72      - fix fc print statements (to stdout and costfunction0000) so
73        that the printed value is always after the global sum.
74    o pkg/seaice/seaice_dynsolver.F :
75      - fix ice strength assymptote at SEAICE_area_max<1
76        (no change for the standard case of SEAICE_area_max=1)
77    o some cleaning:
78      - pkg source files: ensure that all *.F files from each pkg included the
79        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
80        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
81        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
82        includes;
83      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
84      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
85        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
86        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
87      - update option-file CPP_OPTIONS.h of all AD experiments:
88        * no longer include PACKAGES_CONFIG.h ;
89        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
90        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
91          including ECCO_CPPOPTIONS.h).
92    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
93      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
94        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
95        not necessary accurate).
96      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
97        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
98        deliberately break compilation (a remainder that it needs to be customized)
99      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
100      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
101      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
102    o tools/genamke2:
103      - check for lapack.
104    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
105      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
106        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
107        from both packages.
108      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
109      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
110      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
111        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
112    o pkg/cost : add comments to explain special and/or untested setups.
113    o pkg/exf:
114      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
115        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
116    o verification/*/code_ad:
117      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
118      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
119      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
120        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
121    o pkg/seaice :
122      - added possibility to change ice strength/PRESS0 relationship to
123        HEFF, according to the following run time parameters
124        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
125        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
126        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
127    o pkg/ggl90 :
128      - added run time flag mxlSurfFlag to include the code that ensure
129        mixing between first and second level (previously included as a comment)
130    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
131      - add test of newly added dumpAdByRec=T option where
132        we write all records to one file per variable.
133    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
134      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
135        to check that this code is ok with taf and compiles in adjoint.
136    o pkg/autodiff :
137      - added run time param dumpAdByRec : ad dump format switch.
138        If true then write all records to one file per variable.
139        Else write one file per record (remains the default).
140      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
141    o pkg/seaice:
142     - Added SEAICEuseTILT run time switch : if set to
143       false then omit the tilt term in seaice dynamics.
144     - Fix free drift calculation.
145    o pkg/shelfice:
146      When initializing SHELFICEDragQuadratic, set default to be
147      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
148      but retain option to set it independently
149      (inconsistenty spotted by Veronique Dansereau)
150    o eesupp/inc:
151      - in EEPARAMS.h, add real-type constant for some frequently used simple number
152         (0,1,2,1/2), with name explicitly referring to RS/RL type.
153    o model/src:
154      - move balancing of relaxation terms to new S/R balance_relax.F.
155    o pkg/autodiff:
156      re-write active I/O high-level (control) S/R:
157      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
158      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
159      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
160        MDS_READ/WRITE_FIELD); change loops to multi-threads.
161      - update and merge active_file_control_slice.flow into active_file_control.flow
162      - update the calls in lower level S/R (active_file.F, active_file_g.F and
163        active_file_ad.F) keeping the argument list and function unchanged.
164      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
165        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
166      - new low-level active I/O routines, one for each type (RL/RS), for active var
167        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
168        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
169        right type.
170    o autodiff and RS=real*4:
171      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
172        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
173      - change argument type of 3-D mask argument to _RS to match type in the call
174        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
175    o pkg/thsice:
176      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
177      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
178        fresh-water flux: uniform correction or proportional to local precip.
179    o pkg/ctrl:
180      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
181      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
182                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
183      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
184    
185    checkpoint63q (2012/07/30)
186    o pkg/autodiff:
187      note about monitor and snap-shot of ad-variables:
188      a) need to apply ADEXCH before monitor or output of ad-vars to include
189       overlap contributions (was done for adjDump but missing for monitor).
190      b) since ADEXCH implies adding overlap values to interior array, machine
191       truncation error is expected when adding an ADEXCH call in the middle of
192       the time-stepping (although mathematically identical).
193      modifs:
194      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
195        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
196      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
197        apply ADEXCH before monitor or snap-shot of ad-variables:
198           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
199      - implement new method (copy+adexch) for snap-shot and monitor of main model
200        ad-vars (initially not used by default -> output unchanged).
201      - change default (set to 2) to use new method and update few output_adm.txt
202        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
203        and both tutorial_tracer_adjsens tests).
204      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
205        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
206    o pkg/ctrl:
207      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
208      generic control variables via
209      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
210      Only required customization should be S/R ctrl_map_ini_genarr.F
211      (routine in repository contains example)
212    o pkg/exf:
213      - fix and refine checking of surface-relaxation setting when using EXF
214    o verification (adjoint exp):
215      - reduce length of simulation by half for experiment global_ocean.cs32x15
216        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
217    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
218      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
219        of KE that can occur with aggressive optimization
220      + put quadratic bottom drag calculation in separated loops (only done if
221        using bottomDragQuadratic)
222    o model/src: CG2D_NSA
223      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
224         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
225      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
226         change cg2d residual target to be expressed in Wunits (=> do not normalise
227         RHS ; this fix global_max Pb with TAF); update output.
228    o verification/tutorial_tracer_adjsens:
229       improve parameter consistency (and get rid of warnings):
230       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
231       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
232       - use staggerTimeStep (for stability) in som81; use default rotation period.
233    o pkg/exch2:
234      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
235        reset to 0 = 1 long line in X)
236    o pkg/mdsio:
237      - fix reading of dimensions from meta file for large-size domain
238    o model/src:
239      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
240      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
241        Cubed-Sphere Exch with CS-corners inside the domain;
242        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
243        globalArea and to set hasWetCSCorners.
244      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
245        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
246      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
247        useCDscheme and useCubedSphereExchange).
248    o pkg/seaice/seaice_growth.F :
249      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
250        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
251        when the previous code was not correct.
252      - in all cases diagnoze the boundary condition mismatch to SIaaflux
253      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
254        that term to QNET (essentially to set the melt/freeze water to 0degC).
255        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
256    o verification/global_ocean.cs32x15/input.seaice :
257      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
258      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
259      - update results (output.seaice.txt) accordingly.
260    o verification/lab_sea/input/data.seaice :
261      - remove SEAICEheatConsFix, which is now be tested
262        in global_ocean.cs32x15. The presently coded fix
263        is only consistent with real fresh water + nlfs.
264      - update results (output.txt) accordingly.
265    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
266    o AD_CONFIG.h file:
267      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
268      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
269        add it explicitly in each fortran src file where it is needed.
270        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
271        thus introducing potentially wrong dependency; therefore, better to include
272        it only where it's really needed, and after any other included OPTIONS file
273        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
274        or ALLOW_TANGENTLINEAR_RUN).
275    
276    checkpoint63p (2012/07/06)
277    o pkg/autodiff:
278      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
279      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
280        which are now read from new parameter file "data.autodiff" (inAdExact
281        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
282      - add file "data.autodiff" in all verification/*/input_ad/ directories.
283      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
284        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
285    o verification/tutorial_tracer_adjsens/
286      - add extra sub-verification which uses "SOM" advection scheme
287        (2nd Order-Moment Advection Scheme, Prather Limiter) with
288          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
289        and in data:
290          multiDimAdvection=.TRUE.,
291          tempAdvScheme=81,
292          saltAdvScheme=81,
293    o model/src:
294      - introduce ALLOW_BALANCE_RELAX which allow the removal
295       of the global mean of relaxation terms by setting
296       balanceThetaClimRelax and balanceSaltClimRelax
297      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
298       This case is now treated appropriately in seaice_growth.F
299    o pkg/seaice:
300      - do balanceEmPmR and balanceQnet based on the net fluxes
301        (SItflux) that enter the ocean+ice system rather than QNET
302        and EMPMR. Works best in real fresh water.
303      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
304        out of the diagnotics bloc, and stored in global arrays.
305    
306    checkpoint63o (2012/06/29)
307    o vertical mixing schemes:
308      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
309      - replace computation of density (in Function STATE1, opps_calc.F) by a call
310        to S/R FIND_RHO_SCALAR
311      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
312        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
313        affects output (vermix.ggl90) at truncation level.
314    o testreport:
315      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
316        (nSx,nSy) for the number of threads (from eedata.mth)
317    o model/src:
318      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
319        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
320    o verification/tutorial_tracer_adjsens/
321      - compile with ALLOW_CG2D_NSA
322      - run with nonlinFreeSurf=3
323      - update reference output_adm.txt
324    o tools/genmake2:
325      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
326        refine usePROFILES switching off (only when NetCDF is not available).
327    o verification (atmospheric set-up):
328      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
329    o pkg/profiles : refine profiles and files handling.
330    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
331    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
332      - changes to use model/src/the_main_loop.F rather than the ecco version
333        in ecco type adjoint runs.
334    o model/src:
335      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
336      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
337      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
338    o model/src:
339      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
340        update output of test experiment bottom_ctrl_5x5.
341    o pkg/generic_advdiff:
342      - implement vertical bi-harmonic diffusion (for now, only for T & S and
343        only explicitly).
344    o verification/bottom_ctrl_5x5/
345      update reference output (results changed quite some time ago,
346      not sure when; but new reference results look ok in terms of grdchk)
347    o verification/1D_ocean_ice_column/
348      For verification purposes, the exact adjoint rather than an approx.
349      should be used (e.g., to comare against F.D. or TLM).
350      removed autodiff_inadmode*_ad.F routines in code_ad/
351      Update results/ accordingly.
352    o pkg/cal:
353      - change cal_getdate.F so that output date is function of input time only
354        (less ambiguous, not mixed up with input iteration number).
355      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
356    o pkg/diagnostics:
357      - implement calendarDumps also for stats-diags
358      - implement calendarDumps also for snap-shot output (negative freq)
359      - for now, ignores calendarDumps if non-zero phase-lag.
360    
361    checkpoint63n (2012/06/04)
362    o model/src:
363      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
364        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
365      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
366        similar to calc_r_star.F); update results of experiment internal_wave and
367        tutorial_global_oce_in_p (affected @ truncation level).
368    o pkg/shelfice:
369      - add parameterisation of advective-diffusive flux into the ice shelf
370        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
371      - simply eps3/3a computation
372    o eesupp:
373     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
374       between tiles, just fill-in edges assuming locally periodic subdomain) and
375       add corresponding exchange subroutines (EXCH0);
376     - new CG-solver version (_EX0) for disconnected-tiles special case.
377    o model/src (CG-solvers):
378     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
379       (similar final residual output and max-Iter number as with standard version);
380     - allows to store and use lowest-residual solution (standard & _SR versions);
381     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
382     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
383    o eesup/src:
384     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
385       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
386    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
387    
388    checkpoint63m (2012/04/27)
389    o pkg/shelfice:
390     - account for partical cells in surface level below ice-shelf for hydrostatic
391       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
392    o ad test experiments:
393     - update and rename to "ad_optfile.local" local AD-optfile specific to a
394       particular adjoint verification experiment (in verification/*/code_ad/)
395    o pkg/seaice & pkg/exf:
396     - Part two of ECCO-CLIVAR code merges.
397       Completes merge of seaice area relax. code.
398       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
399       to be set in EXF_OPTIONS.h since this pkg controls its I/O
400       (and avoids second CPP option in SEAICE_OPTIONS.h)
401     - change default value of costIceStart & costIceEnd to a valid date.
402     - add snowPrecip to HSNOW in seaice_growth
403    o pkg/ptracers:
404     - move ptracers summary and setup check into separated S/R ; add a check for
405       valid PTRACERS_Iter0 value (error+stop or just warning).
406    o pkg/cal (+ pkg/ecco):
407     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
408       as input; and for AD, unless both are not differentiable (e.g., k index)).
409    o model/src:
410     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
411       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
412       temporary set to usingZCoords value (to be changed to F when using shelfice).
413     - hydrostatic pressure: implement partial cell near the surface also for
414       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
415       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
416    o pkg/ctrl/ctrl_init.F:
417     - add a formal parameter to s/r ctrl_init_rec to print
418       xx_$(ctrl_valiable)_file for easier debugging
419     - move call of cal_* routines into the if-block where they are really
420       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
421       to specify a startdate
422    o pkg/seaice:
423     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
424       global_ocean.cs32x15/code versions).
425     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
426       verification experiment global_ocean.cs32x15.seaice and update results.
427    o pkg/exf:
428     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
429       (according to useExfYearlyFields).
430    o pkg/cal:
431     - move calendar setting & summary (previously in cal_readparams.F) into new
432       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
433       length of the simulation is set (after SET_PARMS call); This is an attempt
434       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
435     - For safety: keep a record of pkg/cal parameter settings status
436               to allow to STOP if one pkg/cal S/R is called too early.
437     - add a stop in all basic pkg/cal subroutines if called before setting is done.
438     - modify cal_getdate.F: stop when nothing was returned;
439       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
440       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
441    
442    checkpoint63l (2012/04/04)
443    o pkg/bbl:
444      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
445        update global_with_exf output.yearly.txt file.
446    o pkg/cal:
447      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
448      - remove 2 unsused and very short (1 line only) functions ;
449      - remove unsused subroutines from AD-Diff list.
450    o model/src:
451      - start to implement clean wait to stop in initialization S/R (config_check.F,
452         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
453    o folowing PRINT_MESSAGE changes:
454      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
455    o pkg/bbl:
456      - modification so it can work with z*
457      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
458      - global_with_exf/input.yearly verification; changes output.yearly.txt
459    o eesupp/src:
460      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
461        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
462      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
463        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
464      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
465      - when using MPI, always set usingMPI=T ; set default accordingly and stop
466        if not consistent.
467      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
468        argument is zero (in case called within single-thread section).
469    o pkg/fizhi:
470        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
471        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
472    o pkg/exch2:
473      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
474        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
475      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
476        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
477        with bad ones coming from a not-yet-updated halo.
478        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
479    o pkg/frazil:
480        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
481        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
482    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
483    o verification/lab_sea
484      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
485      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
486      * nTimeSteps 3 -> 4
487      * changed reference output accordingly
488    o pkg/ctrl:
489      * fix ctrl_get_gen for xx_sst, xx_sss
490    o pkg/fizhi:
491      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
492        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
493      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
494        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
495        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
496    o pkg/gmredi:
497      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
498    o pkg/fizhi:
499      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
500        (old)aces open64 tuv test.
501    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
502    o pkg/mom_vecinv:
503      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
504        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
505        with non-lin free-surf).
506    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
507      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
508      some compilers (gfortran 4.6.0 on MacOS)
509    o momentum:
510      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
511        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
512        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
513    
514    checkpoint63k (2012/03/17)
515    o model/src:
516       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
517         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
518       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
519         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
520    o model/src: solve_*diagonal.F
521       - replace division with multiplication by inverse (similar to original version)
522         update output of AD exp. global_ocean.90x40x15.
523       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
524         to enable the use of the vectorized & differentiable solve_tridiagonal.F
525       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
526         vertical advection (to get solve_tridiagonal tested in AD mode).
527    o pkg/seaice: ECCO-CLIVAR merge:
528      1. seaice AREA relaxation
529         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
530         * runtime flag: SEAICE_tauAreaObsRelax
531      2. modified global mean cost imbalance code: CPP option
532          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
533    o another iteration on solve_*diagonal.F
534       Make choices independent of AUTODIFF
535       Default will be the adjoinable vectorized version.
536       Alternative choices are:
537       * non-adjoinable original version with low memory footprint:
538         #define SOLVE_DIAGONAL_LOWMEMORY
539       * still adjoinable but does not vectorize (k as inner-most loop):
540         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
541    o testreport
542     - add option to use a home made wrapper around "make"
543     - remove MITGCM_IEEE env. variable (no longer active)
544    o pkg/shelfice
545     - improve computation of friction velocity for velocity dependent
546       exchange coefficients: include velocities into SHELFICEBoundaryLayer
547       block to average velocities vertically
548     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
549    o Modify diagonal solvers, now three versions (upon request):
550      #ifndef SOLVE_DIAGONAL_AUTODIFF
551        1. default version (dating back a while ago)
552      #else /* def SOLVE_DIAGONAL_AUTODIFF */
553      # ifdef SOLVE_DIAGONAL_KINNER
554        2. adjoinable version with k-innermost loop (G. Forget)
555      # else
556        3. adjoinable vectorized version of 2.
557      # endif
558      #endif /* SOLVE_DIAGONAL_AUTODIFF */
559      All flags are currently set within routines, but could/should be moved to CPP-options.
560      Array bounds for 1. are as before, for 2.,3. cover the entire domain
561      (could be changed for 1. too).
562    o verification/lab_sea (fwd):
563      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
564        use 7 categories (except hb87), new solve4temp params (except salt_plume),
565        constant salinity (=4) or variable salinity (salt_plume) done through
566        SItracer.
567    o pkg/seaice:
568      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
569      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
570         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
571        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
572        SEAICE_freeze got retired) but already better than previously with
573        SEAICE_freeze=123456.7 deg.C;
574      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
575        (safer multi-threaded setting); always set SEAICEuseEVP;
576      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
577        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
578        stop if multiple specifications for the same coeff; make sure default
579        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
580    o pkg/obcs:
581      - allow to switch to upwind 1rst order advection scheme for the advective
582        flux computation at the open-boundary; disabled for adjoint built.
583    o pkg/ptracers:
584      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
585      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
586      - add parameter to decide when to start a tracer; use internal flag to
587        know which tracer to step-forward; switch this internal flag at the top
588        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
589        for adjoint built.
590    o pkg/seaice:
591      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
592      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
593      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
594    o pkg/ecco:
595      - fix writing of output file DiagnosCost_ClimSalt/Theta
596        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
597    o pkg/seaice:
598      - add missing initialisation of COR_ICE array in dynsolver.F
599      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
600        compiled either way, and is tested in all exps (multidim was only tested
601        in lab_sea ad before).
602      - cosmetic change to prepare for future addition of ITD. no change to results.
603        no defaults change.
604      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
605      - by lack of adequate verification experiments, I further used custom versions
606        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
607        should be correct.
608      - avoid recomputations in ad.
609    o array initialisation in adjoint mode:
610      1) pkg/mom_common/mom_calc_ke.F:
611        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
612        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
613        part this initialisation is gone, resulting in Floating Point Exception
614        (caught by open64 compiler with debug option).
615      2) model/src/convective_weights.F
616        set output convectCount over the full array range (instead of doing
617        an update): this fix a similar issue when called within recomputation (adjoint)
618        which could by-pass the initialisation (normally done in the caller S/R).
619    o pkg/seaice:
620      - final version of turbulent flux params, as agreed at MIT ice meet:
621           SEAICE_mcPheePiston (default is ~ 0.000875)
622           SEAICE_mcPheeTaper (default is 0.)
623           SEAICE_frazilFrac (defualt is 1.)
624           SEAICE_mcPheeStepFunc (default is false)
625      - changes results at trunction error level
626      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
627    o added pkg/frazil:
628      - see frazil_description.tex for details
629      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
630    o pkg/shelfice/shelfice_thermodynamics.F
631      - fix exponents for velocity dependent exchange coefficients: change
632        from 2/3(=0) to 0.66666666666666667
633      - move computation of velocity dependent exchange coefficients into
634        separate loop, so that it applies to both thermodynamics
635      - move some divisions by constants out of loops
636    
637    checkpoint63j (2012/02/16)
638    o pkg/seaice:
639      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
640      - SItracer:  added run time params, and allow coupling to ocn salinity.
641    o pkg/seaice: remove (almost) all divisions by constants within loops
642      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
643      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
644      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
645      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
646    o pkg/seaice :
647      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
648        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
649      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
650      - add permanent SItflux diag that corresponds to TFLUX but includes
651        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
652      - allow activation/testing of a fix for suspected missing term in
653        ocn-ice heat budget (to be confirmed). To test this, you want to
654        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
655        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
656      - no change in results, fwd or ad.
657    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
658      - switch to variable freezing point.
659           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
660      - bug fix : the sublimation term that was missing is now activated.
661           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
662      - bug fix : flooding sign term for SIsal0.NE.0.
663           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
664    o pkg/seaice:
665      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
666        is now the default, and the old default constant freezing point is recovered
667        with SEAICE_tempFrz0    = -1.96,
668             SEAICE_dTempFrz_dS = 0.,
669      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
670      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
671      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
672        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
673      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
674        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
675      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
676        seaice_growth r149 for legacy branch (no results change).
677      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
678        from I. Fenty).
679      - results did not change except for global_ocean.cs32x15, mostly due to the
680        switch to variable freezing point (see above item for detail).
681    o pkg/thsice:
682      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
683        seawater freezing in thsice_calc_thickn (not used).
684    o pkg/seaice: turbulent flux term specification via run time params.
685      - replace CPP switches with run time switches to facilitate testing
686      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
687                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
688      - added runtime parameter : SEAICEturbFluxFormula
689      - move Mcphee constants to SEAICE_PARAMS.h
690      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
691                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
692                 remove seaice_summary call (moved to seaice_init_fixed)
693      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
694        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
695      - seaice_summary.F : add missing report of read turbulent flux term set up
696                           and SITRACER.
697      - seaice_check.F : check range; inform and stop if retired CPPs are used
698                         (incl. SEAICE_AGE).
699      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
700             CPP switch, same computation as before for the different options.
701      - change results at the truncation level.
702    o pkg/seaice:
703      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
704        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
705        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
706      - update verification/*/input*/data.seaice:
707        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
708        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
709        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
710        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
711    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
712      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
713        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
714        difference in results only due to machine truncation.
715      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
716        MaykutPolySatVap; keep MIN_LWDOWN.
717      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
718      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
719        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
720    o pkg/salt_plume:
721      - isolate saltPlumeFlux array exch into a specific S/R called from
722        do_oceanic_phys.F
723      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
724    o verification:
725      - move untested set-up to MITgcm_contrib/verification_other.
726    o pkg/seaice:
727      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
728    o pkg/seaice:
729      - seaice_solve4temp.F (keeping results unchanged):
730        * add 2 future run-time params to select which saturation vapor pressure
731          formula is used and how post-iteration fluxes are set.
732          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
733        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
734          the linearized expression to stay consistent with tsurf finding.
735      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
736        can be < 0.
737    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
738      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
739        conductive heat flux F_c , and add it explicitly when updating tsurf as
740        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
741        so that now F_ia has a consistent meaning through the entire routine.
742        This causes differences at truncation level: update output of fwd exp.
743        global_ocean.cs32x15.seaice.
744    o pkg/seaice:
745      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
746        of arrays, sign/direction of fluxes; no effect on results.
747      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
748        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
749        note: this should have been done before changing celsius2K default.
750      - to keep results unchanged, add back old value of celsius2K in verification
751        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
752      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
753        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
754        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
755        freezing temp is consistent with value in seaice_growth.F ; this causes
756        differences at machine truncation level: update lab_sea AD output (3/4).
757    o pkg/seaice:
758      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
759        and climsst/sss even when using seaice (to prevent calculation that might
760        use SST on land); does not affect any verification exp.
761      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
762        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
763    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
764      over land (non-legacy code)
765    o vectorize salt_plume package:
766      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
767      - this code computes plumebk everywhere (also over land), thus requires
768        code to avoid divisions by zero and catch the case of kLev=Nr.
769      - efficiency of salt_plume_frac is still sub-optimal
770    o tools (genmake2):
771      - fix makefile NAME specification (option: -makefile NAME) by adding
772        "-f $MAKEFILE" in few places where it was missing including makedepend
773        command (contribution from Paul).
774    
775    checkpoint63i (2012/01/24)
776    o model/src:
777      - add factorized versions of some EOS code to find_rho.F,
778        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
779    o model/src:
780      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
781      - change default celsius2K from 273.16 to 273.15
782      - to keep results unchanged, add back old value of celsius2K in verification
783        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
784         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
785    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
786      to make TAF generate vectorizable code
787    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
788       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
789       have flags that do this more efficiently.
790    o pkg/diagnostics/diagstats_calc.F
791      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
792    o pkg/obcs (with exch2):
793      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
794        and remove code (in obcs_readparms.F) which was based on EXCH of indices
795        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
796    o pkg/exf and seaice exp:
797      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
798        so that switching off area & heff advection flags does not affect results.
799      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
800      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
801        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
802        results of verification experiments: 1D_ocean_ice_column(fwd),
803        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
804        and offline_exf_seaice (all 4).
805    o pkg/seaice:
806      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
807        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
808      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
809        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
810        not multi-dim advection;
811      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
812        SHORTWAVE_HEATING #undef.
813    o optim: make Makefile more robust (?)
814    o pkg/obcs:
815      * fix treatment of obcs_read_pickup for TAF
816    o pkg/shelfice:
817      * add missing initialisation of num_shifwflx
818      * new adjoint verification exp. for isomip
819      * change Prandtl and Schmidt numbers from generic formulations
820        (in terms of model diffus. and visc.) to separate runtime
821        parameters, with Holland and Jenkins (1999) default values.
822    o pkg/exf (interpolation):
823      - extended input field (2 rows) near the N & S poles:
824        * fill in with the symetric value (when even Nb of data in longitude)
825        * add average value at the poles only for scalar quantities ; for vector
826          component interpolation, skip the averaging and keep duplicated values,
827          unless the 2 components have same location (uvInterp=T) in which case
828          interpolate the 2 components together using S/R EXF_INTERP_UV.
829      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
830        together: this allows to account properly for local orientation when
831        averaging at N & S pole.
832      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
833        exf-interpolation near N & S poles. Undef by default.
834      - add debug check/print on 1rst iter if debugLevel >=2.
835    o pkg/exf:
836      - change masking flags definition (no longer "parameter"), put them in
837        common block and set them in S/R EXF_INIT_FIXED.
838      - change recognized masking flag from s,u,v to c,w,s since the mask
839        to use (maskC,W,S) depends on position on model grid and has little to
840        do with scalar/vector difference; fix masking if using P-coordinates.
841      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
842        and update results of exp. global_with_exf (x2).
843      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
844    o pkg/obcs
845      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
846    o pkg/exf (interpolation):
847      - assume periodicity in X only if input field cover full longitude range.
848      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
849        and should vectorise).
850      - fix input lat of the 2 added row (in case we provide N.pole data).
851    
852    checkpoint63h (2011/12/30)
853    o pkg/seaice:
854      - change declaration of UVM from _RL to _RS in order to get B-grid
855        uIce,vIce monitor when _RS = real*4
856    o pkg/offline:
857      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
858      - compute vertical velocity if not read from file (switch on exactConserv
859        & staggerTimeStep);
860      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
861    o verification:
862      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
863        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
864        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
865      - update output of exp. global_ocean.cs32x15.viscA4 after changing
866        grid-file angles (used here for coriolis-3d);
867      - remove (or gzip) few files not needed to run fizhi-cs experiments.
868    o pkg/exf (vector interpolation):
869      - rotate vector component toward local grid-axis orientation using grid-angles
870        (stored in GRID.h) instead of locally computed rotation angle; keep old code
871        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
872    o pkg/seaice:
873      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
874        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
875    o pkg/PKG_OPTIONS.h files:
876      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
877        outside of the #ifdef ALLOW_THISPKG / #endif block.
878      - update verification/*/code/PKG_OPTIONS.h files.
879    o add a verification experiment (offline_exf_seaice/input.seaice) that test
880      the B-grid LSOR solver
881    o pkg/seaice: sort out emissivity and long wave radiation step 2:
882      - add emissivity for snow and ice as new run-time parameters
883        (unfortunately) that default to the corresponding exf values; this
884        changes results in most verification experiments so that for backward
885        compatibility these parameter have to be set explicitly to inconsistent
886        values (ugly);
887      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
888        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
889        until we agree how to handle this bug properly
890    o pkg/exf (interpolation):
891      - add a set of run-time param ({inputfield}_interpMethod), one for
892        each interpolated input field, to select the interpolation method
893        with a value of zero switching off the interpolation;
894      - print interpolation parameters to standard output;
895      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
896        (to use instead runoff_interpMethod=0 in data.exf).
897      - simplify default setting of interpolation parameters (for all fields,
898        set position to match model grid cell-center position, leading to trivial
899        interpolation in case of regular Lat-Lon grid) and fix for the case of
900        non-uniform delY.
901    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
902       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
903       this factor is absolutely required, because the lw exitance (= out-going
904       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
905       where the reflectivity rho = 1-emissivity for conservation reasons. Once
906       this is established, we can remove the CPP-Flag (if we want to).
907    o pkg/seaice:
908      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
909        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
910      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
911        what the name implies (and not emissivity*BoltzmannConstant), this means
912        the old default value of 5.5e-8 now means
913        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
914        S/R exf_readparms
915      - FV-discretization of the B-grid LSOR solver, turn on with
916        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
917        of the calling routine dynsolver, so that B and C-grid code look a
918        little more alike.
919      - fix index bugs in ostres.F (B-grid code)
920    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
921    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
922      default for SEAICE_emissivity, if useEXF; requires setting a wrong
923      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
924      backward compatiblity
925    o model/src: use sigmaR in calc_ivdc
926    
927    checkpoint63g (2011/12/16)
928    o pkg/seaice/seaice_growth.F:
929      fix heat conservation of the coupled ocean-seaice system.
930      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
931      solid vs liquid water treatment is resolved via QNET.
932    o pkg/seaice/seaice_growth.F:
933      add missing term for sublimation in saltFlux, which was breaking conservation.
934    o pkg/seaice/seaice_model.F:
935      Remove this patholigical case treatment in evolution branch,
936      where it is un-necessary and breaks conservation.
937      Update global_ocean.cs32x15/results accordingly for
938      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
939    o model/src:
940      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
941      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
942    o pkg/obcs:
943      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
944      tendency for temperature and salinity that is then applied to update
945      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
946      horizontal advection and diffusion contributions on the boundary (in
947      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
948      removing the mask in S/R timestep_tracer. The advantage of this approach is
949      that the updated tracer values include contributions from the surface
950      forcing and vertical diffusion.
951      This modification changes exp4.stevens because of vertical diffusion.
952    o model/src:
953      change non-curvilinear grid setting to also work with exch2 + blank tiles:
954      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
955        face dimensions.
956      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
957        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
958        and INI_SPHERICAL_POLAR_GRID.
959      change test-experiment global_ocean.90x40x15:
960      - split the domain in many more tiles (9x4 tiles of 10x10 each);
961      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
962      - update results of both test (std & dwnslp).
963    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
964       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
965    o model/src:
966      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
967        and fix initialisation when using sigma-coords.
968    o model/src:
969     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
970       to their current value at the beginning of forward_step.F": add a new run-time
971       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
972     - set doResetHFactors=T in the following test exp:
973        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
974        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
975        and tutorial_global_oce_in_p (nonLinFS in p)
976    o pkg/ecco
977      - added IES cost term
978    o verification/advect_xz
979      - scale down the depth by 1/100 (from 200 km to just 2.km)
980      - add secondary test using divergent flow, r-star and implicit vertical advection.
981      - add note (check_conserve_TS.txt) and matlab script to check global
982        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
983    o pkg/rbcs:
984      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
985    o pkg/obcs (Stevens BCs):
986      - fix various problems in the phase speed computations of the Stevens
987        boundary conditions:
988        - sign error for western and southern boundaries,
989        - time tendencies were underestimated by factor of dTracerLev and some just
990          zero (for multidim advection schemes) -> now estimate time tendencies
991          from difference between previous (n) time level and the one before (n-1);
992          this requires storing a field per tracer per boundary, also in the pickup
993          files.
994        - replace deltaTmom in cflMer/Zon computation with dTracerLev
995        - set default phase velocity to cflMer/Zon
996      - update verification experiment exp4.stevens
997    o pkg/generic_advdiff (implicit_r):
998      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
999        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
1000      - fix implicit vertical diffusion or advection with NonLin FreeSurf
1001        (was using current recip_hFacC instead of future recip_hFacC): set future
1002        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
1003        solver S/R ;
1004      - fill diagnostics of vertical advective fluxes (computed from tendency)
1005        when using implicit vert. advection;
1006      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
1007         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
1008         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
1009         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
1010    o pkg/diagnostics:
1011      - add diags for T & S tendency which goes through Adams-Bashforth.
1012    
1013    checkpoint63f (2011/11/30)
1014    o pkg/obcs/obcs_calc_stevens.F:
1015      - join some loops to reduce number of if-statements
1016      - fix a bug in code for northern and southern boundaries.
1017    o pkg/seaice/seaice_init_varia.F
1018      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
1019        caused zero ice-velocities for the B-grid code
1020    o pkg/seaice/seaice_init_fixed.F
1021      - fix a bug in the initialisation of the second metric terms
1022        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
1023      - this affects all seaice configurations with useCurviLinearGrid = .true.
1024        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
1025        = .true. (default)
1026      - the only verification experiment affected is global_ocean.cs32x15:
1027        icedyn, seaice, and seaice_dynmix (AD)
1028    o pkg/thsice/thsice_diagnostics_state.F
1029      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
1030        not contain garbage that can lead to surprises in diagstats_calc.F
1031    o model/src:
1032      - move bi,bj loops inside INTEGR_CONTINUITY ;
1033      - call INTEGR_CONTINUITY directly from forward_step.F
1034        (previously called from momentum_correction_step.F)
1035      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
1036        forward_step.F and pkg/ecco/the_main_loop.F
1037    o model/src/do_oceanic_phys.F:
1038      - reset addMass to zero only if useICEFRONT ;
1039      - separated k-loop for rhoInSitu calculation ;
1040      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
1041        and at constant T,S (= WdRHOdP);
1042      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
1043        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
1044        transport of locally-referenced potential density);
1045        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
1046    o gluemnc:
1047      - replace ncrcat with ncks when adding variables to *.glob.nc
1048      - change the way variables without record dimensions are handled so that
1049        files that have variables with and without record variables can be glued:
1050        add a record dimension with a new unique name to be able to differentiate
1051        between variable with and without a-prior record dimensions. Remove
1052        this record dimension before adding the variable to the *.glob.nc file.
1053        This procedure automatically works also for grid.*.nc files that do not
1054        have any record dimension.
1055    o verification/cpl_aim+ocn:
1056      - generate new reference output on baudelaire (gfortran, mpich2) (previously
1057        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
1058    o pkg/obcs/obcs_calc_stevens.F:
1059      - add code for northern and southern boundaries.
1060      - reorder some loops to save some operations and so that drFBar can be scalar
1061    o model/src:
1062      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
1063        truncation) and add diagnostics for Adams-Bashforth tendency increment.
1064      - update test-exp. AD output:
1065        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
1066      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
1067        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
1068        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
1069        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
1070        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
1071        tutorial_plume_on_slope.
1072    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
1073      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
1074      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
1075      does not even come with an F77 compiler anymore, this should not be
1076      a limitation
1077    
1078    checkpoint63e (2011/11/06)
1079    o pkg/seaice adjoint of LSR:
1080      - substantially rework STORE dirs.
1081      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
1082        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
1083        and only perform SOLV_MAX_FIXED adjoint iters.
1084        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
1085        always goes to same record, meaning that the last forward field will be
1086        the one used in the adjoint - an approximation.
1087      - now produces non-zero LSR-related gradients, and acceptable gradients for
1088        An's zonal (x-z) test case (to be checked in)
1089      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
1090        (but these are screwed up by the thermodynamics in the first place);
1091        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
1092        output_adm.txt also reflects changes to seaice_lsr
1093      - global_ocean.cs32x15:
1094        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
1095          (output_adm.seaice.txt was updated)
1096        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
1097          (output_adm.seaice_dynmix.txt)
1098    o test-exp. exp4+stevens:
1099      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
1100    o pkg/seaice (lsr solver):
1101      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
1102        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
1103      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
1104      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
1105        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
1106      - compute (with new S/R) and print initial (+ free-driff sol. if available)
1107        and final residual of linearised system.
1108    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
1109      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
1110    o pkg/obcs: Stevens BCs (still only for east and west)
1111      - fix Stevens BCs by using intermediate velocities of previous
1112        time step as "baroclinic" contribution rather velocity of one grid cell
1113        inside the boundaries; more consistent but makes the entire treatment
1114        more complicated, requires new pickup files and two new S/Rs:
1115        obcs_copy_uv_n and obcs_save_uv_n
1116        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
1117        (undefined by default)
1118      - silently move computation of some grid factors into separate loops to
1119        save some recomputations
1120      - add a hack for non-linear free surface
1121      - add a verification experiment to exp4 that tests this code
1122    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
1123    
1124    checkpoint63d (2011/10/25)
1125    o pkg/obcs + seaice-dynamics:
1126      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
1127        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
1128        values (consistent with an implicit method).
1129      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
1130        return to older implementation (same results as before); note that none of
1131        the "experimental" OBCS_SEAICE options are implemented in the new version.
1132      - switch test exp. seaice_obcs to use new version (update output).
1133    o pkg/seaice:
1134      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
1135      - add parenthesis in Water-Ice drag calculations (evp & lsr);
1136      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
1137        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
1138      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
1139        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
1140    o pkg/layers:
1141      - Include potential density as new coordinate (Thanks to David Munday)
1142    o pkg/dic:
1143      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
1144        carbonate computation/output to CALC_PCO2_APPROX
1145    o pkg/generic_advdiff
1146      - make TAF generate code that vectorizes:
1147        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
1148    o model/src:
1149      - improve vectorization also for adjoint code of
1150        solve_tridiagonal and solve_pentadiagonal. As this requires up to
1151        5 new 3D-fields, this code is only turned on for the combination of
1152        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
1153        for singular matrix check (only for TARGET_NEC_SX).
1154      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
1155        ALLOW_AUTODIFF. This flag now needs to be set outside of
1156        solve_tri/pentadiagonal.F
1157    o pkg/exf:
1158      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
1159        optional namelist EXF_NML_OBCS).
1160      - add many debug-print (to trace down where pkg/cal error msg comes from)
1161    o pkg/mom_vecinv/mom_vi_hdissip.F
1162      - rearrange loops so that vectorization is improved and in particular
1163        the adjoint routine vectorizes. The code is a little longer now, but I
1164        think easier to read.
1165        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
1166    o pkg/seaice:
1167      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
1168    o pkg/exch2:
1169      - alternative code (without tile x tile matrix) for cumulated (global) sum;
1170        used as default; keep using matrix version in adjustment.cs-32x32x1.
1171    o tools/build_options:
1172      - after merging some MPI and/or multi-threads specific optfiles so that
1173        the modified default optfile support both built (using genmake2 -mpi
1174        for the MPI built, using genmake2 -omp for OpenMP built),
1175        move now obsolete optfiles to tools/build_options/unsupported/
1176       (add copy of email sent to support list in doc/optfiles_changes.txt)
1177    
1178    checkpoint63c (2011/09/28)
1179    o pkg/ebm:
1180      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
1181        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
1182    o pkg/seaice (SItracer pickup)
1183    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
1184      To be done:
1185      - thorough testing of missing fields in S/R seaice_read_pickup
1186      - thorough matching between generic tracers and specific fields used
1187        (e.g. volume-weighted age, area-weighted age, salinity, ...)
1188    o pkg/grdchk:
1189      - all procs calculate and print finite-difference gradient (for testreport)
1190      - change description output used by testreport;
1191      - AD testing: also compare and report Finite-difference gradient;
1192        => update all output_adm*.txt
1193    o test exp. global_ocean_ebm:
1194      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
1195        and turn on exactConserve; update (fwd) output.
1196    o pkg/seaice (LSR):
1197      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
1198      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
1199        * identical results with non-CS topology (but save up to half of EXCH calls)
1200        * no much changes in cs-32 verification tests since no ice at face edges
1201         (differences due to convergence criteria, since nb of iterations changed)
1202        * expect some differences on lat-lon-cap grid.
1203        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
1204    o pkg/exch2:
1205      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
1206        many tiles); until alternative coding is added, just add a stop.
1207    o pkg/kpp:
1208      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
1209        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
1210    o optfiles:
1211      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
1212        into corresponding standard one, which now support different build:
1213        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
1214      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
1215    o pkg/obcs (seaice):
1216      - add missing EXCH for uIce,vIce after applying OBCS;
1217      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
1218        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
1219        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
1220      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
1221      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
1222        and eedata.mth for MPI and mutlti-threaded testing.
1223    o pkg/flt:
1224      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
1225      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
1226      - fix pickup and trajectories + profiles output with multi-threads;
1227      - add parameter to select group of fields to write along trajectory and
1228        profile (default unchanged);
1229      - only call PORT_RAND* function when flt_noise <> 0;
1230      - add multi-threaded test for verification exp. flt_example.
1231    o eesupp/src:
1232      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
1233      - USE_OMP_THREADING: check that number of threads (from eedata) matches
1234        actual number (from env.var. setting).
1235    o pkg/ebm:
1236      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
1237      - add multi-threaded test for verification exp. global_ocean_ebm
1238    
1239    checkpoint63b (2011/08/29)
1240    o pkg/ebm:
1241      - fix sign of runoff;
1242      - update directly forcing fields (Qnet,EmPmR) to use standard
1243        external_forcing_surf.F (remove ebm_forcing_surf.F);
1244      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
1245      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
1246        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
1247      - update global_ocean_ebm parameters file data and update output (fwd+ad).
1248    o verification/matrix_example:
1249      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
1250        MPI and mutlti-threaded testing.
1251    o pkg/matrix:
1252      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
1253      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
1254      - fix for multi-threaded (remove DATA statement);
1255      - use standard DIFFERENT_MULTIPLE function;
1256      - add MATRIX_OPTIONS.h
1257    o verification/matrix_example:
1258       To allow to split the domain in several tiles, change the domain size
1259        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
1260        Western side) of land points.
1261    o (*_)write_pickup:
1262      - fix few bugs in mypackage_read/write_pickup.F
1263      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
1264        array of length 1 (was caught by compiler syntax-check).
1265    o pkg/diagnostics (velocity potential solver):
1266      - fix initialisation of main diagonal matrix (for overlap values)
1267    o tools/build_options:
1268      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
1269        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
1270      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
1271        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
1272        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
1273        and use "-devel" testreport option for standard testing on baudelaire.
1274    o pkg/grdchk:
1275      - Assume that all gradient-check position are within the same tile
1276        corresponding to global indices (iGloTile,jGloTile) and that
1277        positions (i,j indices or nbeg) are local to this tile;
1278      - set tile local-indices and proc. number according to tile global-indices;
1279      - remove grdchkwhichproc from namelist (retired param);
1280      - send adjoint gradient to all procs so that all procs print it to STDOUT;
1281      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
1282    o adding package bbl (Bottom Boundary Layer)
1283      description in MITgcm/pkg/bbl/bbl_description.tex
1284      example/test experiment in MITgcm_contrib/bbl
1285    o adjoint verifications
1286      - changed 5 experiments to multi-tiles
1287        * global_ocean.90x40x15
1288        * obcs_ctrl
1289        * offline_exf_seaice
1290        * tutorial_dic_adjoffline
1291        * tutorial_tracer_adjsens
1292        changed reference output for those that crossed tile boundaries
1293        (changed choices of gradient check positions)
1294      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
1295      - temporary bug fix in grdchk_loc.F for obcs
1296    o genmake2 & testreport
1297      - add target "obj" (just for OBJFILES files) to Makefile;
1298      - add option to specify FEXTRAFLAGS on command line.
1299    o pkg/mypackage:
1300      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
1301    
1302    checkpoint63a (2011/08/02)
1303    o pkg/diagnostics (velocity potential):
1304      - fix velocity-potential calculation when using OBCS: balance net inflow
1305        at each level (new S/R OBCS_DIAG_BALANCE).
1306      - fix some of the problems with OBCS in stream-function calculation.
1307    o pkg/exf/exf_readparms.F
1308      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
1309        EXF_NML_OBCS) more consistent, so that you need not have these lists
1310        in data.exf when they are not used.
1311    o optim/optim_readdata.F:
1312      - add some output about obcs variables that might help debugging
1313      - add a check about nvarlength
1314    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
1315    o pkg/diagnostics (velocity potential):
1316      - fix mask for OBCS (still problems in stream-function with OBCS);
1317      - add specific parameter (default = main code CG2D params) for solver;
1318      - in case of poor convergence, use solution corresponding to lowest residual.
1319    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
1320      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
1321      and should be avoided where possible.
1322    o model/src (rStar):
1323      - include r* effect on reference-state (PhiRef) in totPhiHyd
1324        (so that it's really the potential anomaly at the cell center);
1325        affect solution only if z* with full pressure in EOS.
1326      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
1327        update output (because of z* in totPhiHyd and viscA4 changes);
1328      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
1329        @ constant r) until interpolation at constant r is implemented.
1330    o pkg/diagnostics
1331      - fix RCENTER diagnostics in case cell center is not at interface middle
1332    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
1333      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
1334      that THETA and SALT are "conservative temperature" and "absolute
1335      salinity"
1336    o pkg/ctrl
1337      - fix computation of endrec in s/r ctrl_init_rec
1338      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
1339    o pkg/seaice/seaice_growth.F
1340      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
1341        remove then obsolete STORE directives
1342      - fix STORE directives for tice and tices, so that only the
1343        appropriate part of the fields are stored (and not the entire
1344        field); update global_ocean.cs32x15.seaice AD output.
1345      - cosmetic changes: adjust CPP flags and indentation for better
1346        legibilty
1347    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
1348      Chris Wilson)
1349    o pkg/gmredi:
1350       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
1351       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
1352    
1353    checkpoint63  (2011/07/11)
1354    o pkg/exch2:
1355     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
1356     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
1357       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
1358       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
1359    o pkg/diagnostics:
1360     - deal with pairs of post-processed diags which are computed together; in
1361       particular, re-order list of diags within 1 file to save 2nd computation.
1362     - add S/R to compute velocity stream-function (called after velocity-potential
1363       calculation) from divergence free transport -> new diagnostics "PsiVEL".
1364     - add parameter to select grid-point location where PsiVEL == 0.
1365    o eesupp/src:
1366       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
1367       (specific S/R needed with exch2 topology - for now, just print an error msg)
1368    o pkg/shelfice
1369     - Implement friction velocity-dependent transfer coefficients following
1370       Holland and Jenkins, JPO, 1999
1371       Original code by M. Losch with small modifs.
1372       Enable with CPP option SHI_ALLOW_GAMMAFRICT
1373       and runtime flag SHELFICEuseGammaFrict
1374    o verification lab_sea & global_ocean.cs32x15:
1375     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
1376       does not miss some dependencies (but is slower) and also works with many files
1377       (default makedepend limitation for AD built).
1378     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
1379    o pkg/diagnostics:
1380     - add run-time parameter "useMissingValue" (def=False) to fill land-point
1381        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
1382       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
1383     - Extend the use of "missing_value" setting from data.diagnostics for the case
1384       of counter-diagnostics (where fraction-weight is zero). This applies both to
1385       MNC and MDS output files.
1386    o pkg/seaice/seaice_growth.F:
1387      - add 'a priori' cap of latent heat flux based on actual mass considerations
1388        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
1389        non-legacy seaice_solve4temp.
1390      - add diagnostic of the residual sublimation freshwater flux (the freshwater
1391        flux taken from the ocean if the total actual latent heat fluxes exceed
1392        the maximum)
1393      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
1394       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
1395      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
1396       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
1397      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
1398      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
1399    o verification 1D_ocean_ice_column:
1400       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
1401       update results
1402    o pkg/diagnostics:
1403     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
1404       which are not filled-up but computed from other diags ; In this case, the mate
1405       diag points to the primary (filled-up) diag to used for post processing.
1406     - Update Velocity-potential computation using post-processed diag framework.
1407     ==> Change the ordering of fields and time-periods in MDS output file
1408       when using periodic averaging: now writes one time record with the full set
1409       of fields for this time period, then the next time reccord (it used to be
1410       one field with the full set of time records then the next field).
1411         Note: this is now similar to NetCDF (MNC) output file. <==
1412    
1413    checkpoint62z (2011/06/21)
1414    o adjoint monitor:
1415     - Add adjoint monitor output for packages exf, seaice
1416       and update relevant testreport output
1417    o pkg/seaice:
1418     - re-order diags inits so that they appear in order in available_diagnostics.log
1419     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
1420       area/heff/hsnow preceeding thermodynamic growth/melt.
1421     - modified diag: SIdA; output actual effect, as the description states.
1422     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
1423     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
1424       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
1425        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
1426     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
1427     - added diagnostics for seaice generic tracers (SItr*).
1428     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
1429     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
1430     I. Fenty: 18-Jun-2011:
1431     Minor changes to seaice package:
1432     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
1433        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
1434       - Differentiated "regularization variables" from "floor variables"
1435        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
1436        * hiceMin became SEAICE_hice_reg (old hiceMin)
1437          (with _reg meaning regularization variable)
1438       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
1439        so as to ensure energy conservation when going between phases
1440      - A22 was not used anywhere
1441     2) Changed regularization procedure for heffActual and hsnowActual to ensure
1442        well-boundedness and smooth adjoint in seaice_growth.F
1443     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
1444        because the old regularization always set heffActual >= 0.05 cm
1445     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
1446        on AREA when HEFF > 0.
1447      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
1448        requiring that DISABLE_AREA_FLOOR *not* be defined
1449     Affected verifications:
1450      - 1D_ocean_ice_column (output.txt output_adm.txt)
1451      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
1452    o pkg/diagnostics:
1453      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
1454      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
1455        (was _RL, now integer) with option = 0 to retrieve all levels.
1456      - add pieces of code to compute velocity potential at each level (new diagnostics
1457        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
1458        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
1459      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
1460        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
1461        and in diagnostics_fract_fill.F (do not need a valid pointer for the
1462        diagnostics counter-mate); check that definition of counter-diagnostic
1463        includes a valid counter-mate (in diagnostics_set_levels.F).
1464    o model/src (rStar):
1465      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
1466        affect solution only if z* with full pressure in EOS;
1467        update output of test-exp global_ocean.90x40x15.
1468    o pkg/seaice:
1469      - introduce siEps=1e-5 parameter
1470      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
1471      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
1472      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
1473        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
1474        as well as ice cover age and ridging index (attached to AREA).
1475        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
1476        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
1477        Up to SItrMaxNum=3 tracers can be used simultaneously.
1478    o pkg/salt_plume:
1479      -introduce SPsalFRAC run time parameter that sets the fraction of the
1480       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
1481       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
1482    o model debug options:
1483      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
1484        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
1485      - Refine debug-msg printing selection (3 new levels):
1486        debugMode  : controls printing of debug messages (sequence of S/R calls).
1487        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
1488         debLevZero =  0 ; /* level of disabled aux. msg printing */
1489         debLevA =  1 ; /* level of minimum  aux. msg printing */
1490         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
1491         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
1492         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
1493         debLevE =  5 ; /* level of extensive debug printing */
1494        New debugLevel default: with default debugMode value (=F),
1495          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
1496          and if debugMode=T, default debugLevel = 4 (debLevD).
1497        Relation with previous settings:
1498         debLevB (=2) corresponds to former debLevA (=1)
1499         debLevD (=4) corresponds to former debLevB (=2)
1500        Note:
1501         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
1502         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
1503            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
1504      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
1505        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
1506    o pkg/obcs:
1507      - change OBCSfixTopo default from True to False (should not change the results);
1508        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
1509    o pkg/thsice:
1510      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
1511        2nd layer seaice sublimation (unlikely to happen)
1512      - use Interior mask for OBCS in thsice_advection.F (similar to what is
1513        done in gad_advection & seaice_advection).
1514    o adjoint:
1515      bug fix spotted by Gael Forget:
1516      seaice_advection and thsice_advection still had
1517      legacy CPP options to avoid CS corner updates for adjoint
1518    o pkg/seaice:
1519      => Change some of the defaults (2011/05/29):
1520         - change SEAICEuseFluxForm default (from False to True)
1521         - change DIFF1 default (from 0.004 m/s to 0. m/s)
1522         And print warnings if DIFF1 is not set in data.seaice and centered
1523          avection scheme is used without any diffusion.
1524      also:
1525      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
1526      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
1527      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
1528        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
1529        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
1530      update results of test exp.:
1531         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
1532             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
1533             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
1534         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
1535         seaice_obcs: output (SEAICEuseFluxForm=T)
1536      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
1537          for standard fwd & AD lab_sea tests (to keep the same output).
1538    o pkg/seaice/seaice_growth.F:
1539      - use Ian Fenty's capping formulas for actual ice
1540      thickness thoughout EVOLUTION branch.
1541      - put treatment pathological case #2) in CPP brackets
1542      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
1543      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
1544    o pkg/seaice:
1545      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
1546      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
1547      also pass fac as a param, which can be 1. (to update the tendency
1548      field) or the time step (to update the field itself).
1549      - seaice_advdiff.F: for multidim, call seaice_diffusion with
1550      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
1551      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
1552      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
1553      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
1554    o pkg/seaice:
1555      diffusion with centered advection scheme (diffus.F & advect.F):
1556      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
1557        to just compute the laplacian of input-field.
1558      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
1559      - fix flux-form version in diffus.F to conserve tracer.
1560      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
1561       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
1562    
1563    checkpoint62y (2011/05/26)
1564    o pkg/seaice:
1565     - seaice_growth.F : in EVOLUTION branch, always include
1566       a_QSWbyATM_cover in qnet (as it should be).
1567     - verification/global_ocean.cs32x15 : update results accordingly
1568       (output.seaice.txt output_adm.seaice.txt).
1569    o pkg/seaice + obcs:
1570     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
1571       equivalent of assuming no tracer gradient outside the OB region.
1572       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
1573     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
1574       after changes above);
1575     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
1576       only at OB location (instead of over a band of OLx width).
1577    o pkg/seaice:
1578     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
1579       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
1580    o pkg/obcs:
1581      - split header file "OBCS.h" into 4 separated files:
1582        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
1583       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
1584         (contain no conditional statement which depends on OBCS options).
1585      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
1586        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
1587    o ctrl, cost, grdchk & autodiff pkgs:
1588      - make options file more standard (like other {PKG}_OPTIONS.h file but
1589        with AD_CONFIG.h); clean-up some of the included header files.
1590    o pkg/obcs:
1591      - do not mask tracer when applying OB (tracer == 0 could generate problems)
1592      - apply tracer OB values to tracer field only at OB location (instead of
1593        over a band of OLx width)
1594      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
1595      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
1596        obcs_apply_tloc.F & obcs_apply_sloc.F
1597    o obcs in model/src:
1598      - call OBCS_APPLY_W only if NonHydrostatic.
1599      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
1600      - reset dEtaHdt and wVel to zero outside OB interior region ;
1601      - leave tracer unchanged outside OB interior region: This has no effect
1602        on the solution but just to prevent unrealistic tracer value outside OB.
1603      - zero out velocity outside OB interior region: This has no effect on
1604        the solution but just to prevent unrealistic velocity outside OB.
1605    o obcs and non-lin free-surf:
1606       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
1607       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
1608       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
1609       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
1610       update results of test-exp. exp4(nlfs).
1611    o exp4 (nlfs) test-exp:
1612       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
1613       with NonLin-FreeSurf); update output.nlfs.txt
1614    o obcs and 2d/3d solver norm:
1615       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
1616       and outside OB interior region (will allow to place OB further inside the
1617       domain). Depending on the domain, can affects cg2d-Norm (previous
1618       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
1619       and cg3d-Norm (previous Norm was computed before canceling OB terms),
1620       e.g. in tutorial_plume_on_slope.
1621      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
1622    o pkg rbcs:
1623      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
1624      - add capability to apply relaxation to horizontal velocity uVel & vVel.
1625    o pkg/grdchk: add gradient check for control variable xx_shifwflx
1626    o pkg/shelfice/shelfice_init_fixed.F
1627      fix CPP-flag combinations
1628    o pkg/seaice: Merge iceage code of Pierre Rampal
1629      * update/change/correct ice age calculations
1630      * add age updates for pathological cases
1631      Probably needs more testing...
1632    
1633    checkpoint62x (2011/05/13)
1634    o pkg/mom_vecinv:
1635       high-order vorticity scheme: use interior masks (maskInW & S)
1636       to zero-out (outside OB) gradient of vorticity.
1637    o verification exp.:
1638       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
1639       hs94.128x64x5 and seaice_obcs ; update results.
1640    o pkg/obcs:
1641      fix bug in OBeta for YZ sections in obcs_exf_load.F
1642    o pkg/ctrl, pkg/shelfice, and optim:
1643      - add new control variable xx_shifwflx (fresh water flux underneath ice
1644        shelves). This is almost as tedious as obcs-ctrl, because the
1645        variables needs its own mask.
1646      - add a cost function term that penalizes the deviation of xx_shifwflx
1647        from the first guess (zero) in analogy to other control variables
1648    o pkg/shelfice:
1649      - start basic adjoint
1650    o pkg/ctrl:
1651      - remove extra 2D field "for good measure" when initializing in
1652        ctrl_set_globfld_[xy/xz/yz].F
1653    - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec    - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
1654    - improve error messages in ctrl_set_unpack_*    - improve error messages in ctrl_set_unpack_*
1655  o OBC implementation in momentum:  o OBC implementation in momentum:

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