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revision 1.128 by heimbach, Thu Feb 6 22:43:09 2003 UTC revision 1.250 by jmc, Mon Jan 26 18:06:42 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o update AIM Cubed-Sphere exp (aim.5l_cs):
7      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
8    o update AIM Equatorial Channel exp:
9      use standard aim_v23 pkg and change the SST fields to be more realistic.
10    o globalFile now works with exch2
11    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
12      mon_vort3.F to make exch2 friendly with >1 tile per cube
13      face
14    o limit timeave output for hi-res integrations
15    
16    checkpoint52i_post
17    o removed CPP_EEOPTIONS.h from verification/*/code
18    o updated the tiling for global_ocean_pressure
19    checkpoint52i_pre
20    
21    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
22      the old pkg/aim).
23    
24    checkpoint52h_pre
25    o shortened offending lines in exch2_send_rx?.template
26    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
27    o genmake2: add build & execute test for NetCDF code
28    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
29      old grid files, moved CPP_EEMACROS.h to pkg/exch2
30    o added useSingleCPUIO flag to monitor.F and mon_out.F
31    o added temporary hack for sea-ice dynamics on the cube:
32      metric terms are ignored and it is assumed that
33      there is no sea-ice on cube faces 1, 2, 4, and 5.
34    
35    checkpoint52f_post
36    o added exch2 cube routines to pkg/exch2
37    o modified hs94.cs-32x32x5 to use it
38    o added new grid files to hs94.cs-32x32x5
39    checkpoint52f_pre
40    
41    checkpoint52e_post
42    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
43      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
44    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
45      to work with implicit vertical advection and AB ;
46    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
47    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
48     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
49    checkpoint52e_pre
50    
51    o fix bug in impldiff when Nr=1 or Nr=2.
52    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
53    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
54    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
55      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
56    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
57    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
58    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
59    
60    checkpoint52d_post
61    o re-tiled many expts to allow comparison in multi-processor mode
62      - updated output accordingly
63      - changed hs94.128x64x5 to use intial T from file rather than use the
64        random number generator
65    o add infrastructure in model routines for fizhi and gridalt packages
66    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
67    o changes to permit hi-res, cubed-sphere, configuration
68      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
69      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
70      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
71        of surface winds for the cube
72      (A verification experiment, based on global_ocean.cs32x15, but with
73       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
74       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
75       complete with example surface forcing files and matlab scripts to look
76       at the output and compare it with that of global_ocean.cs32x15.)
77    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
78       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
79       to conform to the common rule.
80    o check-in the first version of the coupler + interfaces for multi-components
81       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
82       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
83       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
84       - ocean and atmos. share the same horizontal grid (no interpolation).
85       - exchanges between component and coupler is done in forward_step
86    o new verification experiment, cpl_aim+ocn:
87       coupled ocean - AIM atmosphere on cs32 grid.
88    
89    checkpoint52d_pre
90    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
91    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
92    
93    checkpoint52c_post
94    o Fixing OPTIONS files for use of exf:
95      - ALLOW_ECCO not needed
96      - ECCO_CPPOPTIONS.h should not be included from
97        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
98        as has been the case in the past
99      - All cal/exf related options are currently set in
100        single header file. Should remain so until we
101        agree on a consistent new policy.
102    o Removed all CPP options for cal package.
103      cal has no more CPP options.
104    o modified STOREs in GAD_ADVECTION
105    o corrected key comp. for passkey
106    
107    checkpoint52b_post
108    o new version: "thsice" of thermodynamic sea-ice pkg:
109     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
110     - modify fluxes but do not change theta directly;
111     - light cleaning of bulk_force pkg (still needed with thsice).
112     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
113       + output_thsice.txt to test thsice & bulk_force pkgs.
114    o put back grid & coriolis monitor output.
115    checkpoint52b_pre
116    
117    o call "do_the_model_io" at the beginning (=> dump initial state)
118    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
119    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
120      (need info on NUMBER_OF_PTRACERS)
121    o missing PTRACERS headers in some routines
122    o default tamc.h in pkg/autodiff supposed to crash
123      to ensure proper customization
124    
125    checkpoint52a_post
126    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
127      - moved surfaceTendencyTice from pkg/seaice to main code
128      - subroutine FREEZE_SURFACE now limits only surface temperature
129        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
130        => new output.txt for global_ocean.cs32x15 & global_with_exf
131      - keep the old version of FREEZE for backward compatibility;
132        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
133      - corresponding modifs for TAF directives
134    o added surface flux output variables to TIMEAVE_STATVARS
135    o time-averaged output for pkg/ptracers
136    o fix problem with ECCO-related divided adjoint
137      snapshot file was missing some ad-variables,
138      but no warning issued by TAF
139    
140    checkpoint52a_pre
141    o some bug fixes for #undef REAL4_IS_SLOW
142    
143    checkpoint52 = ecco_c52_e35
144    o after testing adjoints of checkpoint51u_post
145    
146    checkpoint51u_post
147    o this is the post-merge tag of the ecco-branch
148      (needs another clean checkout and re-testing)
149    o various natl_box_adjoint configs and results
150      but no input fields
151    o obcs adjoint not yet merged!
152    o adding ECCO global 1x1 and 2x2 degree configs
153    o updated/extended some store directives for seaice
154    o pkg/ecco now containes ecco-specific part of cost function
155    o top level routines the_main_loop, forward_step
156      supersede those in model/src/
157      previous input data.cost now in data.ecco
158      (new namelist ecco_cost_nml)
159    o in ctrl/ cleaned some cross-dependencies and updated CPP options
160    
161    checkpoint51t_post
162    o this is the pre-merge tag of the ecco-branch
163    
164    checkpoint51s_post
165    o cleanup: removed various obsolete #define-s
166    o pkg/grdchk
167      - renamed 'ph-grd 3' to 'grad-res'
168      - merged from ecco-branch
169        (remaining bug fixes for obcs gradient checks)
170      - additional high-precision output for testreport
171        (grep for 'precision_grdchk_result')
172    
173    checkpoint51r_post
174    o cleaned up or removed CPP_OPTIONS.h files
175    o updated results for some of the tests to reflect the new
176      optfiles (-ieee: -O0 instead of -O3)
177    
178    checkpoint51q_post
179    o cd_code:
180      - moved cd_scheme.F -> cd_code_scheme.F
181      - separate read_checkpoint from cd_code_ini_vars.F
182      - separated cd_code part from write_checkpoint
183      - updated AD_SOURCE, generated .flow
184      - added CD_CODE_VARS.h to the_main_loop
185      - Moving cd_code specific store dir.s to pkg/cd_code
186    o ctrl package totally restructured
187      - pack/unpack now optional and decoupled from
188        xx_/adxx_ I/O
189      - ctrl_pack/unpack cleaned
190        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
191      - confined inclusion of AD_CONFIG.h to where necessary.
192    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
193    
194    checkpoint51p_post
195    o create initial cd_code package
196      - WARNING: the initialization of fields within packages
197        is broken because INI_FIELDS (where READ_CHECKPOINT is
198        called) is called *before* PACKAGES_INIT_VARIABLES.
199        This seems to be backwards since
200        1) its important to initially zero the entire field including
201           the "halo" region
202        2) zeroing needs to be done *before* reading pickup info
203           and the pickup call might or might not happen in any
204           particular run
205      - this needs an overhaul for R2
206    o cleanup verification/*/code/GMREDI_OPTIONS.h
207    o cleanup testreport
208    
209    checkpoint51o_post
210    o bringing AD-related verif's up to date with genmake2
211      - carbon/
212      - global_ocean.90x40x15/
213      - hs.94.1x64x5/
214      - (front_relax/ )
215    o (more) consistent directory structure for AD-related verif.'s
216    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
217    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
218    o bug fix in find_alpha.F for MDJWF:
219      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
220        change rho -> rho-rhoConst
221      - replace call find_rho to find_rhonum
222    o initialisation of rFlx extended to full array (required by TAF)
223      and shifted to thermodynamics
224    o removed PTRACERS.h in ptracers routine
225    o added surfacetendencyPtr to S/R parameter list pracers_forcing
226    o Correcting initialisations for fVerU, fVerV.
227    o helping TAF to recognize dependency on kUp for
228      fVerU, fVerV
229    o Replacing delZ by delR in pkg/ctrl/
230    checkpoint51o_pre
231    
232    o undid all of cp51 pending some cleanups and discussion
233    o added the [#include "AD_CONFIG.h"] statement to all files that need
234       it for adjoint/tl #defines
235     o re-worked the build logic in genmake2 to support AD_CONFIG.h
236     o removed tools/genmake since it no longer works
237    
238    checkpoint51n_post
239    o modifications to make FREEZE flux visible to pkg/kpp
240      - moved surfaceTendencyTice from pkg/seaice to main code
241      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
242      - subroutine FREEZE now limits only surface temperature
243        (this means new output.txt for global_ocean.90x40x15,
244         global_ocean.cs32x15, and global_with_exf)
245    o added surface flux output variables to TIMEAVE_STATVARS
246    
247    checkpoint51n_pre
248    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
249    o added [#include "AD_CONFIG.h"] to all files that use the following
250      defines:
251      - ALLOW_ADJOINT_RUN
252      - ALLOW_TANGENTLINEAR_RUN
253      - ALLOW_ECCO_OPTIMIZATION
254    
255    checkpoint51m_post
256    o incorporating changes to get TAMC/TAF working in genmake2
257      - added new TAMC/TAF targets to the Makefile
258      - various cleanups related to package handling
259      - these changes should have no impact on the forward model
260    
261    checkpoint51l_post
262    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
263     - faster algorithm for cal_addtime.F
264     - higher precision arithmetic, where needed
265     - pkg/exf *startdate variables changed from calendar date to
266       model integration time
267    
268    checkpoint51l_pre
269    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
270    o enable to apply restoring on S & T only in a latitude band.
271    o update output (external_forcing_surf modif. change truncation errors)
272       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
273    
274    checkpoint51k_post
275    o change default to: useNHMTerms=.FALSE.
276     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
277       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
278     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
279        exp1, ideal_2D_oce
280     - change data file of oceanic exp (leave the results unchanged for now)
281       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
282    o set gravitySign automatically according to the vertical coordinate used
283      (and change sign: back to "logical" value: +1 when R increases downward)
284    o added an include barrier to the default CPP_OPTIONS.h and
285      removed the #include "PACKAGES_CONFIG.h" from it
286    o fix a bug in mom_fluxform (from chk51j_post)
287    
288    checkpoint51j_post
289    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
290    o adjusted some flow directives (dynamics, thermodynamics)
291    o added cubed-sphere case to test cost function
292    o heckpoint_lev?_directives.h now include
293      pkg-specific directives, whenever those are enabled.
294    o Moving pkg-specific flow directives to corresponding pkg
295      Moving pkg-specific differentiation list to corresponding pkg
296      Moving pkg-specific checkpoint-lev storing to corresponding pkg
297      ---> conventions are
298           - pkg_ad.flow
299           - pkg_ad_diff.list
300           - pkg_ad_check_lev?_dir.h
301    
302    checkpoint51i_post
303    o merge of the branch-genmake2
304      - knowingly breaks the older genmake
305      - automatic generation of all ALLOW_${PKG_NAME} defines
306      - new testreport supersedes older testscript
307    o large number of package inclusion and header cleanups
308    checkpoint51i_pre
309    
310    o new output for adjoin of global ocean vector invariant
311    o fix for checkpoint of thermodynamic seaice and bulk_force
312    o Steph gchem various cleanups
313    
314    checkpoint 51h_pre
315    o fixed some single quotes
316    o modify gchem pkg to be more versatile
317    o modifications to clean up dic pkg
318    o add pkg/cfc
319    
320    checkpoint51g_post
321    o provide links for ARPACK and ADM*TLM
322    o start removing verification/vero/
323    o update AD-related stuff
324      (in particular some IF-statements in model/src/ routines)
325    o adding to verification/global_ocean.90x40x15/ adjoint of
326      vector invariant setup
327    
328    checkpoint51f_post
329    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
330    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
331      of tracer Green's fucntions for ocean inversion project.
332    
333    checkpoint51f_pre
334    o Added on-the-fly spatial interpolation capability
335        "USE_EXF_INTERPOLATION" to pkg/exf.
336      - This is a temporary Cartesian-grid hack until
337        the super-duper ESMF coupler becomes available.
338      - See verification/global_with_exf/README for usage example.
339      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
340        flags and modified pkg/seaice accordingly.
341    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
342        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
343        non-local transport term.
344    
345    checkpoint51e_post
346    o pkg/mom_vecinv:
347      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
348      - add time-ave diagnostic of vorticity advection.
349    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
350    o atmospheric geopotential: - include water vapor effect;
351                                - use p^kappa in p* scaling.
352    o land pkg: read initial state from files.
353    o AIM : add stratospheric drag in the upper level
354    
355    checkpoint51d_post
356    o change function ILNBLNK (=> last non-blank char.) to return zero
357      (instead of the string length) when the string. char is empty
358    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
359    o modif's to restore TAMC compatibility
360      - avoid "_d" constructs in PARAMETER declarations
361      - avoid interrupting lines by comment lines
362    o Use cluster local disks for purely local I/O
363      vs. globally visible disks needed for ctrl stuff
364      (merged from ecco-branch)
365      - new active_file_loc... and mdsio_..._loc routines
366      - affected packages: autodiff, ctrl, grdchk, mdsio
367    
368    checkpoint51c_post
369    o introducing integer flag debugLevel
370      - debLevZero: suppress all output
371      - debLevA: standard
372      - debLevB: equivalent to current debugMode=.TRUE.
373    o introducing pathname variable mdsioLocalDir for mdsio
374      that can be specified at runtime
375      (relevant for cluster I/O to local disk)
376    `
377    >>>checkpoint51b_post
378    adjoint of ptracers
379    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
380    o extended state in checkpoint_lev?, etc.
381    o alternative ctrl/cost with tr1 or ptracer
382    o new comlev1_bibj_ptracers
383    o new ptracers.flow
384    o made ptracers_forcing same as external_forcing_s
385    o added verification for adjoint with ptracers
386      - adm. grdchk fail so far
387      - tlm. grdchk OK
388      - checked tapelev/comlev recomputations: OK
389    <<<checkpoint51b_pre
390    
391    checkpoint51a_post
392    o added code for biogeochemistry package
393      - new pkgs: dic, gchem
394      - new subroutine in ptracers
395    o modify code for biogeo packages
396      - in model/src and pkg/ptracers
397    
398    checkpoint51
399    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
400      - autodiff, ctrl, exf, grdchk, seaice
401      kept separate packages
402      - cost, ecco, obcs
403    o updating verification/internal_wave, verification/lab_sea
404      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
405    
406    checkpoint50i_post
407    o Preparing next differentiable checkpoint and sync
408      of MAIN vs. ecco-branch
409      - 1st step: this one is differentiable
410      - 2nd step: next(! not this) checkpoint will have updated packages
411                  from ecco-branch)
412    
413    checkpoint50h_post
414    o new package "land": provide surface BC for AIM.
415    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
416    o AIM: use true log-P extrapolation for near surface temp (= as in
417        F.Molteni paper) ; update aim.5l_cs output.
418    o New variable in PARM03 for more flexible pickups
419    o somewhat cleaned package initialisation sequence for
420      ctrl/ cost/ ecco/ in packages_... routines
421    
422    checkpoint50g_post
423    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
424      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
425      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
426        made the default because of faster convergence than ADI
427    
428    checkpoint50f_post
429    o exf totally restructured
430      - replaced all exf_set_ routines by one generic exf_set_gen.F
431        and made sure it's still differentiable
432      - split exf_getffields.F into new exf_bulkformulae.F
433      - exf_inscal_/exf_outscal_ suffixes consistent with field names
434      - updated adjoint/makefile and relevant verif. accordingly
435    
436    checkpoint50f_pre
437     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
438          + change Evap over land. (update aim.5l_cs output)
439     o added missing .cvsignores and made uniform across expts
440     o changed configuration of tidal_basin_2d expt
441     o added pkg/debug functions for tracing code in fatal crashes
442     o tidied pkg/monitor to use MONITOR_OPTIONS.h
443     o new fn in pkg/monitor to stop model if solution grows too big
444     o removed lots of single quotes from comments
445    
446    checkpoint50e_post
447    o make KPP work with PTRACERS
448     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
449       nearly a copy of kpp_transport_s
450     - there is no analogue to SurfaceTendencyS, so I have to use
451       gPtr(of the surface layer) instead
452    o add a new platform SunFire+mpi (SunFire 15000) to genmake
453    checkpoint50e_pre
454    
455    checkpoint50d_post
456    o change kpp output from multiple-record state files to single-record state
457      files analogous to write_state.F
458    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
459      analogous to the cg2d-related output.
460    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
461      so that writing to internal file fn (with length 512) fails.
462    checkpoint50d_pre
463    
464    checkpoint50c_post
465    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
466    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
467    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
468    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
469    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
470    
471    checkpoint50c_pre
472    Merging from release1_p13:
473    o bug fix for pkg/seaice dynamic solver
474    o Added SEAICE_initialHEFF to pkg/seaice
475    
476    checkpoint50b_post
477    o store u*,v* in gU,V instead of in guNm1,gvNm1
478    o in order to put the momForcing out of the Adams-Bashforth:
479      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
480      to timestep.F
481    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
482    o re-generate output for highly sensitive test-exp:
483       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
484    
485    checkpoint50b_pre
486    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
487    o corrected CPP option mismatch in exf_Bulk... functions for case
488      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
489    
490    checkpoint50a_post
491    o Bug fix for merging between c50 and KPP.
492      ikey was passed from thermodynamics to kpp_calc via
493      common block rather than being recomputed in kpp_calc,
494      in contradiction with new key itdkey.
495      New key ikppkey created, and tamc.h headers updated.
496    
497    checkpoint50
498    - 2nd step of merge with ecco-branch:
499      merge changes in ecco-branch back into main trunk
500    - bug fix in find_alpha
501    - more storing in gmredi_calc_tensor.F, kpp_routines.F
502    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
503    - merged some sliced AD support routines
504    
505    checkpoint49
506    merged from ecco-branch:
507    o exf:
508      - Enable initialisation of forcing fields to constant
509        (runtime) values.
510      - in exf_getffields.F
511        Reduce i-/j-loop to interior domain, discarding overlaps.
512        That also fixes wrong TAF-key computations for key_1, key_2
513        with bulf formulae.
514      - exf_init.F modify #ifdef for exf_init_evap
515      - exf_getffieldrec.F, ctrl_getrec.F
516        The following INT-usages are not safe:
517          fldsecs  = int(fldsecs/fldperiod)*fldperiod
518          fldcount = int(fldsecs/fldperiod) + 1
519        and were modified.
520    o autodiff: checkpoint_lev...
521      - updated storing for bulk formulae (some arrays were missing)
522      - added state for seaice package
523      - synchronized with main branch
524    o DIVA:
525      Modif.s in
526      - the_main_loop.F
527      - the_model_main.F
528      and added cost_final_restore.F cost_final_store.F
529      o With these changes, it is possible to fully separate
530        the first forward run to compute the cost function (mdthe_main_loop)
531        and adjoint runs over individual DIVA intervals (adthe_main_loop)
532        into separate model executions.
533        This enables better tuning of DIVA to given queue sizes.
534      o Loss of cost function value in consecutive DIVA runs is
535        fixed by storing to 'costfinal' file.
536      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
537        beginning/end of adjoint integration is accounted for.
538      The current changes apply to TAF-1.4.26.
539      TAF has one remaining bug, requiring one manual change
540      (see MITgcm manual).
541    o cal: synchronized between MAIN and ecco-branch
542    
543    checkpoint48i_post
544    o Changes to restore differentiability of code w.r.t. previous tag
545      (mostly adding new routines to make list and replacing
546      pressure by totPhiHyd).
547    o Updated and merged grdchk package
548      - has both ADM and TLM checks
549      - works for single- and multi-proc.
550      - output cleaned
551      - worked successfully for parallel DIVA
552    o genmake:
553      - Adding -platform=SP4
554      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
555    o Modif. for DIVA:
556      ctrl_unpack should not be called in intermediate DIVA interval.
557      (similar thing would apply for active files such as
558      tbar, sbar, psbar, which should not be reinitialised;
559      only relevant for ecco-branch)
560    
561    checkpoint48h_post
562    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
563    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
564    o Added SEAICE_initialHEFF to pkg/seaice
565    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
566    
567    checkpoint48g_post
568    --- EOS:
569    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
570      store total Potential in totPhyHyd for diagnostics & EOS.
571    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
572    --- Pressure/geopotential gradient:
573    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
574    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
575      ( changes results of global_ocean_pressure )
576    o NLFS + z-coord.: add eta*Rho' contribution.
577    o accurate phiHyd when using interface-W at the middle between 2 centers
578     ( changes results of ideal_2D_oce )
579    o includes r* 2nd term in potential gradient.
580    
581    checkpoint48f_post
582    Merging from release1_p12:
583    o Modifications for using pkg/exf with pkg/seaice
584      - improved description of the various forcing configurations
585      - added basic radiation bulk formulae to pkg/exf
586      - units/sign fix for evap computation in exf_getffields.F
587      - updated verification/global_with_exf/results/output.txt
588    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
589      (SBO) core products, including oceanic mass, center-of-mass,
590      angular, and bottom pressure (see pkg/sbo/README.sbo).
591    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
592      to avoid negative values in shallow regions.
593      - updated verification/natl_box/results/output.txt
594      - updated verification/lab_sea/results/output.txt
595    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
596    o Added useSingleCpuIO option (see PARAMS.h).
597    o Updated useSingleCpuIO option in mdsio_writefield.F to
598      work with multi-field files, e.g., for single-file pickup.
599    o pkg/seaice:
600      - bug fix in growth.F: QNET for no shortwave case
601      - added HeffFile for specifying initial sea-ice thickness
602      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
603    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
604      kpp_transport_t.F, forward_step.F, and the_main_loop.F
605    o pkg/seaice:
606      - adjoint-friendly modifications
607      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
608    
609    checkpoint48e_post
610    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
611    o dynamics: change definition of computational domain & adapt mom_fluxform
612      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
613    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
614        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
615        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
616        global_ocean.90x40x15 global_with_exf global_ocean_pressure
617        inverted_barometer solid-body.cs-32x32x1
618      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
619    
620    checkpoint48d_post
621    o in preparation for r*:
622     a) use pre-computed gradient of hydrostatic potential:
623        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
624     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
625        => affects results of glob_oce_pressure (different truncation error)  
626      update output.txt of ideal_2D_oce & global_ocean_pressure
627    
628    checkpoint48d_pre
629    o in preparation for r*:
630      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
631      pass the 2 comp. of the grad. as arguments to momentum S/R.
632      but for the moment, only used if it does not change the results.
633    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
634    
635  checkpoint48c_post  checkpoint48c_post
636  Modifications in treatment of initial flux forcing controls  Modifications in treatment of initial flux forcing controls
637  to avoid extra storing of flux fields.  to avoid extra storing of flux fields.

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