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revision 1.141 by heimbach, Fri Feb 28 05:21:22 2003 UTC revision 1.258 by heimbach, Mon Feb 23 19:20:16 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint52k_post
7    o removed top-level directory "diags"
8      - we migrated these functions to pkg/timeave a long time ago
9    o fixed bug introduced in pkg/monitor
10    o accuracy ctrlprec = 32 insuffient for gradient checks using
11      averaged fields (I/O via cost_averages)
12      -> use ctrl.h in active_file*.F to control I/O precision.
13    o paramter list of CALL ADTHE_MAIN_LOOP
14    o added initial do_the_model_io to ecco
15    o set all ...Freq to zero after cost_final
16      taveFreq, dumpFreq, pChkptFreq
17    o MAIN and ECCO differentiability restored
18    
19    checkpoint52j_post
20    o fix nchklev in tamc.h for global_ocean...
21    o Bringing flow and store directives up-to-date
22    o Really weird thing!
23      call do_the_model_io from the_main_loop with parameters
24      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
25      TAF places a faulty re-call of initialise_varia
26      after cost_final call which should not be there!
27    checkpoint52j_pre
28    
29    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
30      error messages
31    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
32    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
33      debug output
34    o modfied mdsio_writefield.F to handle non-global files under exch2
35    o update AIM Cubed-Sphere exp (aim.5l_cs):
36      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
37    o update AIM Equatorial Channel exp:
38      use standard aim_v23 pkg and change the SST fields to be more realistic.
39    o globalFile now works with exch2
40    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
41      mon_vort3.F to make exch2 friendly with >1 tile per cube face
42    o limit timeave output for hi-res integrations
43    
44    checkpoint52i_post
45    o removed CPP_EEOPTIONS.h from verification/*/code
46    o updated the tiling for global_ocean_pressure
47    checkpoint52i_pre
48    
49    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
50      the old pkg/aim).
51    
52    checkpoint52h_pre
53    o shortened offending lines in exch2_send_rx?.template
54    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
55    o genmake2: add build & execute test for NetCDF code
56    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
57      old grid files, moved CPP_EEMACROS.h to pkg/exch2
58    o added useSingleCPUIO flag to monitor.F and mon_out.F
59    o added temporary hack for sea-ice dynamics on the cube:
60      metric terms are ignored and it is assumed that
61      there is no sea-ice on cube faces 1, 2, 4, and 5.
62    
63    checkpoint52f_post
64    o added exch2 cube routines to pkg/exch2
65    o modified hs94.cs-32x32x5 to use it
66    o added new grid files to hs94.cs-32x32x5
67    checkpoint52f_pre
68    
69    checkpoint52e_post
70    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
71      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
72    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
73      to work with implicit vertical advection and AB ;
74    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
75    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
76     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
77    checkpoint52e_pre
78    
79    o fix bug in impldiff when Nr=1 or Nr=2.
80    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
81    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
82    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
83      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
84    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
85    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
86    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
87    
88    checkpoint52d_post
89    o re-tiled many expts to allow comparison in multi-processor mode
90      - updated output accordingly
91      - changed hs94.128x64x5 to use intial T from file rather than use the
92        random number generator
93    o add infrastructure in model routines for fizhi and gridalt packages
94    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
95    o changes to permit hi-res, cubed-sphere, configuration
96      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
97      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
98      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
99        of surface winds for the cube
100      (A verification experiment, based on global_ocean.cs32x15, but with
101       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
102       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
103       complete with example surface forcing files and matlab scripts to look
104       at the output and compare it with that of global_ocean.cs32x15.)
105    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
106       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
107       to conform to the common rule.
108    o check-in the first version of the coupler + interfaces for multi-components
109       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
110       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
111       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
112       - ocean and atmos. share the same horizontal grid (no interpolation).
113       - exchanges between component and coupler is done in forward_step
114    o new verification experiment, cpl_aim+ocn:
115       coupled ocean - AIM atmosphere on cs32 grid.
116    
117    checkpoint52d_pre
118    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
119    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
120    
121    checkpoint52c_post
122    o Fixing OPTIONS files for use of exf:
123      - ALLOW_ECCO not needed
124      - ECCO_CPPOPTIONS.h should not be included from
125        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
126        as has been the case in the past
127      - All cal/exf related options are currently set in
128        single header file. Should remain so until we
129        agree on a consistent new policy.
130    o Removed all CPP options for cal package.
131      cal has no more CPP options.
132    o modified STOREs in GAD_ADVECTION
133    o corrected key comp. for passkey
134    
135    checkpoint52b_post
136    o new version: "thsice" of thermodynamic sea-ice pkg:
137     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
138     - modify fluxes but do not change theta directly;
139     - light cleaning of bulk_force pkg (still needed with thsice).
140     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
141       + output_thsice.txt to test thsice & bulk_force pkgs.
142    o put back grid & coriolis monitor output.
143    checkpoint52b_pre
144    
145    o call "do_the_model_io" at the beginning (=> dump initial state)
146    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
147    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
148      (need info on NUMBER_OF_PTRACERS)
149    o missing PTRACERS headers in some routines
150    o default tamc.h in pkg/autodiff supposed to crash
151      to ensure proper customization
152    
153    checkpoint52a_post
154    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
155      - moved surfaceTendencyTice from pkg/seaice to main code
156      - subroutine FREEZE_SURFACE now limits only surface temperature
157        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
158        => new output.txt for global_ocean.cs32x15 & global_with_exf
159      - keep the old version of FREEZE for backward compatibility;
160        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
161      - corresponding modifs for TAF directives
162    o added surface flux output variables to TIMEAVE_STATVARS
163    o time-averaged output for pkg/ptracers
164    o fix problem with ECCO-related divided adjoint
165      snapshot file was missing some ad-variables,
166      but no warning issued by TAF
167    
168    checkpoint52a_pre
169    o some bug fixes for #undef REAL4_IS_SLOW
170    
171    checkpoint52 = ecco_c52_e35
172    o after testing adjoints of checkpoint51u_post
173    
174    checkpoint51u_post
175    o this is the post-merge tag of the ecco-branch
176      (needs another clean checkout and re-testing)
177    o various natl_box_adjoint configs and results
178      but no input fields
179    o obcs adjoint not yet merged!
180    o adding ECCO global 1x1 and 2x2 degree configs
181    o updated/extended some store directives for seaice
182    o pkg/ecco now containes ecco-specific part of cost function
183    o top level routines the_main_loop, forward_step
184      supersede those in model/src/
185      previous input data.cost now in data.ecco
186      (new namelist ecco_cost_nml)
187    o in ctrl/ cleaned some cross-dependencies and updated CPP options
188    
189    checkpoint51t_post
190    o this is the pre-merge tag of the ecco-branch
191    
192    checkpoint51s_post
193    o cleanup: removed various obsolete #define-s
194    o pkg/grdchk
195      - renamed 'ph-grd 3' to 'grad-res'
196      - merged from ecco-branch
197        (remaining bug fixes for obcs gradient checks)
198      - additional high-precision output for testreport
199        (grep for 'precision_grdchk_result')
200    
201    checkpoint51r_post
202    o cleaned up or removed CPP_OPTIONS.h files
203    o updated results for some of the tests to reflect the new
204      optfiles (-ieee: -O0 instead of -O3)
205    
206    checkpoint51q_post
207    o cd_code:
208      - moved cd_scheme.F -> cd_code_scheme.F
209      - separate read_checkpoint from cd_code_ini_vars.F
210      - separated cd_code part from write_checkpoint
211      - updated AD_SOURCE, generated .flow
212      - added CD_CODE_VARS.h to the_main_loop
213      - Moving cd_code specific store dir.s to pkg/cd_code
214    o ctrl package totally restructured
215      - pack/unpack now optional and decoupled from
216        xx_/adxx_ I/O
217      - ctrl_pack/unpack cleaned
218        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
219      - confined inclusion of AD_CONFIG.h to where necessary.
220    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
221    
222    checkpoint51p_post
223    o create initial cd_code package
224      - WARNING: the initialization of fields within packages
225        is broken because INI_FIELDS (where READ_CHECKPOINT is
226        called) is called *before* PACKAGES_INIT_VARIABLES.
227        This seems to be backwards since
228        1) its important to initially zero the entire field including
229           the "halo" region
230        2) zeroing needs to be done *before* reading pickup info
231           and the pickup call might or might not happen in any
232           particular run
233      - this needs an overhaul for R2
234    o cleanup verification/*/code/GMREDI_OPTIONS.h
235    o cleanup testreport
236    
237    checkpoint51o_post
238    o bringing AD-related verif's up to date with genmake2
239      - carbon/
240      - global_ocean.90x40x15/
241      - hs.94.1x64x5/
242      - (front_relax/ )
243    o (more) consistent directory structure for AD-related verif.'s
244    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
245    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
246    o bug fix in find_alpha.F for MDJWF:
247      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
248        change rho -> rho-rhoConst
249      - replace call find_rho to find_rhonum
250    o initialisation of rFlx extended to full array (required by TAF)
251      and shifted to thermodynamics
252    o removed PTRACERS.h in ptracers routine
253    o added surfacetendencyPtr to S/R parameter list pracers_forcing
254    o Correcting initialisations for fVerU, fVerV.
255    o helping TAF to recognize dependency on kUp for
256      fVerU, fVerV
257    o Replacing delZ by delR in pkg/ctrl/
258    checkpoint51o_pre
259    
260    o undid all of cp51 pending some cleanups and discussion
261    o added the [#include "AD_CONFIG.h"] statement to all files that need
262       it for adjoint/tl #defines
263     o re-worked the build logic in genmake2 to support AD_CONFIG.h
264     o removed tools/genmake since it no longer works
265    
266    checkpoint51n_post
267    o modifications to make FREEZE flux visible to pkg/kpp
268      - moved surfaceTendencyTice from pkg/seaice to main code
269      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
270      - subroutine FREEZE now limits only surface temperature
271        (this means new output.txt for global_ocean.90x40x15,
272         global_ocean.cs32x15, and global_with_exf)
273    o added surface flux output variables to TIMEAVE_STATVARS
274    
275    checkpoint51n_pre
276    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
277    o added [#include "AD_CONFIG.h"] to all files that use the following
278      defines:
279      - ALLOW_ADJOINT_RUN
280      - ALLOW_TANGENTLINEAR_RUN
281      - ALLOW_ECCO_OPTIMIZATION
282    
283    checkpoint51m_post
284    o incorporating changes to get TAMC/TAF working in genmake2
285      - added new TAMC/TAF targets to the Makefile
286      - various cleanups related to package handling
287      - these changes should have no impact on the forward model
288    
289    checkpoint51l_post
290    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
291     - faster algorithm for cal_addtime.F
292     - higher precision arithmetic, where needed
293     - pkg/exf *startdate variables changed from calendar date to
294       model integration time
295    
296    checkpoint51l_pre
297    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
298    o enable to apply restoring on S & T only in a latitude band.
299    o update output (external_forcing_surf modif. change truncation errors)
300       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
301    
302    checkpoint51k_post
303    o change default to: useNHMTerms=.FALSE.
304     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
305       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
306     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
307        exp1, ideal_2D_oce
308     - change data file of oceanic exp (leave the results unchanged for now)
309       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
310    o set gravitySign automatically according to the vertical coordinate used
311      (and change sign: back to "logical" value: +1 when R increases downward)
312    o added an include barrier to the default CPP_OPTIONS.h and
313      removed the #include "PACKAGES_CONFIG.h" from it
314    o fix a bug in mom_fluxform (from chk51j_post)
315    
316    checkpoint51j_post
317    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
318    o adjusted some flow directives (dynamics, thermodynamics)
319    o added cubed-sphere case to test cost function
320    o heckpoint_lev?_directives.h now include
321      pkg-specific directives, whenever those are enabled.
322    o Moving pkg-specific flow directives to corresponding pkg
323      Moving pkg-specific differentiation list to corresponding pkg
324      Moving pkg-specific checkpoint-lev storing to corresponding pkg
325      ---> conventions are
326           - pkg_ad.flow
327           - pkg_ad_diff.list
328           - pkg_ad_check_lev?_dir.h
329    
330    checkpoint51i_post
331    o merge of the branch-genmake2
332      - knowingly breaks the older genmake
333      - automatic generation of all ALLOW_${PKG_NAME} defines
334      - new testreport supersedes older testscript
335    o large number of package inclusion and header cleanups
336    checkpoint51i_pre
337    
338    o new output for adjoin of global ocean vector invariant
339    o fix for checkpoint of thermodynamic seaice and bulk_force
340    o Steph gchem various cleanups
341    
342    checkpoint 51h_pre
343    o fixed some single quotes
344    o modify gchem pkg to be more versatile
345    o modifications to clean up dic pkg
346    o add pkg/cfc
347    
348    checkpoint51g_post
349    o provide links for ARPACK and ADM*TLM
350    o start removing verification/vero/
351    o update AD-related stuff
352      (in particular some IF-statements in model/src/ routines)
353    o adding to verification/global_ocean.90x40x15/ adjoint of
354      vector invariant setup
355    
356    checkpoint51f_post
357    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
358    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
359      of tracer Green's fucntions for ocean inversion project.
360    
361    checkpoint51f_pre
362    o Added on-the-fly spatial interpolation capability
363        "USE_EXF_INTERPOLATION" to pkg/exf.
364      - This is a temporary Cartesian-grid hack until
365        the super-duper ESMF coupler becomes available.
366      - See verification/global_with_exf/README for usage example.
367      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
368        flags and modified pkg/seaice accordingly.
369    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
370        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
371        non-local transport term.
372    
373    checkpoint51e_post
374    o pkg/mom_vecinv:
375      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
376      - add time-ave diagnostic of vorticity advection.
377    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
378    o atmospheric geopotential: - include water vapor effect;
379                                - use p^kappa in p* scaling.
380    o land pkg: read initial state from files.
381    o AIM : add stratospheric drag in the upper level
382    
383    checkpoint51d_post
384    o change function ILNBLNK (=> last non-blank char.) to return zero
385      (instead of the string length) when the string. char is empty
386    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
387    o modif's to restore TAMC compatibility
388      - avoid "_d" constructs in PARAMETER declarations
389      - avoid interrupting lines by comment lines
390    o Use cluster local disks for purely local I/O
391      vs. globally visible disks needed for ctrl stuff
392      (merged from ecco-branch)
393      - new active_file_loc... and mdsio_..._loc routines
394      - affected packages: autodiff, ctrl, grdchk, mdsio
395    
396    checkpoint51c_post
397    o introducing integer flag debugLevel
398      - debLevZero: suppress all output
399      - debLevA: standard
400      - debLevB: equivalent to current debugMode=.TRUE.
401    o introducing pathname variable mdsioLocalDir for mdsio
402      that can be specified at runtime
403      (relevant for cluster I/O to local disk)
404    `
405    >>>checkpoint51b_post
406    adjoint of ptracers
407    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
408    o extended state in checkpoint_lev?, etc.
409    o alternative ctrl/cost with tr1 or ptracer
410    o new comlev1_bibj_ptracers
411    o new ptracers.flow
412    o made ptracers_forcing same as external_forcing_s
413    o added verification for adjoint with ptracers
414      - adm. grdchk fail so far
415      - tlm. grdchk OK
416      - checked tapelev/comlev recomputations: OK
417    <<<checkpoint51b_pre
418    
419    checkpoint51a_post
420    o added code for biogeochemistry package
421      - new pkgs: dic, gchem
422      - new subroutine in ptracers
423    o modify code for biogeo packages
424      - in model/src and pkg/ptracers
425    
426    checkpoint51
427    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
428      - autodiff, ctrl, exf, grdchk, seaice
429      kept separate packages
430      - cost, ecco, obcs
431    o updating verification/internal_wave, verification/lab_sea
432      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
433    
434    checkpoint50i_post
435    o Preparing next differentiable checkpoint and sync
436      of MAIN vs. ecco-branch
437      - 1st step: this one is differentiable
438      - 2nd step: next(! not this) checkpoint will have updated packages
439                  from ecco-branch)
440    
441    checkpoint50h_post
442    o new package "land": provide surface BC for AIM.
443    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
444    o AIM: use true log-P extrapolation for near surface temp (= as in
445        F.Molteni paper) ; update aim.5l_cs output.
446    o New variable in PARM03 for more flexible pickups
447    o somewhat cleaned package initialisation sequence for
448      ctrl/ cost/ ecco/ in packages_... routines
449    
450    checkpoint50g_post
451    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
452      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
453      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
454        made the default because of faster convergence than ADI
455    
456    checkpoint50f_post
457    o exf totally restructured
458      - replaced all exf_set_ routines by one generic exf_set_gen.F
459        and made sure it's still differentiable
460      - split exf_getffields.F into new exf_bulkformulae.F
461      - exf_inscal_/exf_outscal_ suffixes consistent with field names
462      - updated adjoint/makefile and relevant verif. accordingly
463    
464    checkpoint50f_pre
465     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
466          + change Evap over land. (update aim.5l_cs output)
467     o added missing .cvsignores and made uniform across expts
468     o changed configuration of tidal_basin_2d expt
469     o added pkg/debug functions for tracing code in fatal crashes
470     o tidied pkg/monitor to use MONITOR_OPTIONS.h
471     o new fn in pkg/monitor to stop model if solution grows too big
472     o removed lots of single quotes from comments
473    
474    checkpoint50e_post
475    o make KPP work with PTRACERS
476     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
477       nearly a copy of kpp_transport_s
478     - there is no analogue to SurfaceTendencyS, so I have to use
479       gPtr(of the surface layer) instead
480    o add a new platform SunFire+mpi (SunFire 15000) to genmake
481    checkpoint50e_pre
482    
483    checkpoint50d_post
484    o change kpp output from multiple-record state files to single-record state
485      files analogous to write_state.F
486    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
487      analogous to the cg2d-related output.
488    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
489      so that writing to internal file fn (with length 512) fails.
490    checkpoint50d_pre
491    
492    checkpoint50c_post
493    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
494    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
495    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
496    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
497    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
498    
499    checkpoint50c_pre
500    Merging from release1_p13:
501    o bug fix for pkg/seaice dynamic solver
502    o Added SEAICE_initialHEFF to pkg/seaice
503    
504    checkpoint50b_post
505    o store u*,v* in gU,V instead of in guNm1,gvNm1
506    o in order to put the momForcing out of the Adams-Bashforth:
507      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
508      to timestep.F
509    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
510    o re-generate output for highly sensitive test-exp:
511       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
512    
513    checkpoint50b_pre
514    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
515    o corrected CPP option mismatch in exf_Bulk... functions for case
516      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
517    
518    checkpoint50a_post
519    o Bug fix for merging between c50 and KPP.
520      ikey was passed from thermodynamics to kpp_calc via
521      common block rather than being recomputed in kpp_calc,
522      in contradiction with new key itdkey.
523      New key ikppkey created, and tamc.h headers updated.
524    
525    checkpoint50
526    - 2nd step of merge with ecco-branch:
527      merge changes in ecco-branch back into main trunk
528    - bug fix in find_alpha
529    - more storing in gmredi_calc_tensor.F, kpp_routines.F
530    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
531    - merged some sliced AD support routines
532    
533  checkpoint49  checkpoint49
534    merged from ecco-branch:
535    o exf:
536      - Enable initialisation of forcing fields to constant
537        (runtime) values.
538      - in exf_getffields.F
539        Reduce i-/j-loop to interior domain, discarding overlaps.
540        That also fixes wrong TAF-key computations for key_1, key_2
541        with bulf formulae.
542      - exf_init.F modify #ifdef for exf_init_evap
543      - exf_getffieldrec.F, ctrl_getrec.F
544        The following INT-usages are not safe:
545          fldsecs  = int(fldsecs/fldperiod)*fldperiod
546          fldcount = int(fldsecs/fldperiod) + 1
547        and were modified.
548    o autodiff: checkpoint_lev...
549      - updated storing for bulk formulae (some arrays were missing)
550      - added state for seaice package
551      - synchronized with main branch
552    o DIVA:
553      Modif.s in
554      - the_main_loop.F
555      - the_model_main.F
556      and added cost_final_restore.F cost_final_store.F
557      o With these changes, it is possible to fully separate
558        the first forward run to compute the cost function (mdthe_main_loop)
559        and adjoint runs over individual DIVA intervals (adthe_main_loop)
560        into separate model executions.
561        This enables better tuning of DIVA to given queue sizes.
562      o Loss of cost function value in consecutive DIVA runs is
563        fixed by storing to 'costfinal' file.
564      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
565        beginning/end of adjoint integration is accounted for.
566      The current changes apply to TAF-1.4.26.
567      TAF has one remaining bug, requiring one manual change
568      (see MITgcm manual).
569    o cal: synchronized between MAIN and ecco-branch
570    
571    checkpoint48i_post
572  o Changes to restore differentiability of code w.r.t. previous tag  o Changes to restore differentiability of code w.r.t. previous tag
573    (mostly adding new routines to make list and replacing    (mostly adding new routines to make list and replacing
574    pressure by totPhiHyd).    pressure by totPhiHyd).

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