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revision 1.141 by heimbach, Fri Feb 28 05:21:22 2003 UTC revision 1.278 by jmc, Sun Apr 18 21:43:24 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint52m_post
7    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
8      this does not change any of the results, because myIter=0 in swfrac always
9      lead to jwtype=2 (the default anyway), but the call makes little sense
10      as a default
11    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
12    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
13      atmospheric model (AIM) to use it ; add a "slab ocean" component.
14    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
15    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
16    o extending useSingleCpuIO option to work with new exch2 I/O format
17      - old-style, missing-tile I/O is still accessible by defining CPP
18        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
19    o monitor package can write to NetCDF files and/or STDOUT
20    o fix re-definition bug in MNC_GRID_INIT_ALL()
21    o doc/api_reference added
22      - a framework for building an API Reference Manual using all
23        the "protex" comments embedded in the code
24      - see pkg/generic_advdiff, pkg/mnc for examples
25    o MNC:
26      - make myThid the last argument for all subroutines
27      - new default for the grid files: NO halos
28      - add useMNC and other run-time flags
29      - separate per-file-group handling of the unlimited dimension
30      - early initialization of MNC w/ flags read at the eeboot stage
31        and lookup tables set in initialize_fixed
32      - write all MNC output to a freshly-created directory
33    o thermodynamics sea-ice (thsice) is now tested with testreport.
34    o test exp. advect_cs: use the standard cs32 grid ; update output.
35    o Added functionality to grdchk:
36      pick global i,j,k position (or nearest wet) where to perform check.
37    
38    checkpoint52l_post
39    o new land formulation:
40      a) use ground enthalpy as prognostic variable to ensure exact
41         energy conservation.
42      b) account for water temperature and for latent heat of freezing
43         in all processes (rain, run-off, ground storage)
44      c) compute surface and ground temperature implicitly.
45    o aim_v23 modification for new land model:
46      a) Treat separately land / ocean / sea-ice surface fluxes
47         to allow implicit computation of land & sea-ice surface temp.
48      b) add snow precipitation.
49    checkpoint52l_pre
50    
51    o fix problem (when 1 tile is empty) in min/max monitor.
52    o fix bug in timeAve (u,vZetatave in common block)
53    o no restoring terms under ice for pkg/seaice
54    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
55    o bug fix for pkg/seaice pickups
56    o change MNC call locations and add coordinate attributes
57    o mask vorticity at the corner ; affects global_ocean.cs output
58    o fix ini_curvilinear_grid ; test CS experiments with mpi
59    o aim.5l_cs: modify sea-ice fraction input file ; update output
60    o exf: Adding simple range check routine for exf fields after read
61    
62    checkpoint52k_post
63    o removed top-level directory "diags"
64      - we migrated these functions to pkg/timeave a long time ago
65    o fixed bug introduced in pkg/monitor
66    o accuracy ctrlprec = 32 insuffient for gradient checks using
67      averaged fields (I/O via cost_averages)
68      -> use ctrl.h in active_file*.F to control I/O precision.
69    o paramter list of CALL ADTHE_MAIN_LOOP
70    o added initial do_the_model_io to ecco
71    o set all ...Freq to zero after cost_final
72      taveFreq, dumpFreq, pChkptFreq
73    o MAIN and ECCO differentiability restored
74    
75    checkpoint52j_post
76    o fix nchklev in tamc.h for global_ocean...
77    o Bringing flow and store directives up-to-date
78    o Really weird thing!
79      call do_the_model_io from the_main_loop with parameters
80      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
81      TAF places a faulty re-call of initialise_varia
82      after cost_final call which should not be there!
83    checkpoint52j_pre
84    
85    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
86      error messages
87    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
88    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
89      debug output
90    o modfied mdsio_writefield.F to handle non-global files under exch2
91    o update AIM Cubed-Sphere exp (aim.5l_cs):
92      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
93    o update AIM Equatorial Channel exp:
94      use standard aim_v23 pkg and change the SST fields to be more realistic.
95    o globalFile now works with exch2
96    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
97      mon_vort3.F to make exch2 friendly with >1 tile per cube face
98    o limit timeave output for hi-res integrations
99    
100    checkpoint52i_post
101    o removed CPP_EEOPTIONS.h from verification/*/code
102    o updated the tiling for global_ocean_pressure
103    checkpoint52i_pre
104    
105    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
106      the old pkg/aim).
107    
108    checkpoint52h_pre
109    o shortened offending lines in exch2_send_rx?.template
110    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
111    o genmake2: add build & execute test for NetCDF code
112    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
113      old grid files, moved CPP_EEMACROS.h to pkg/exch2
114    o added useSingleCPUIO flag to monitor.F and mon_out.F
115    o added temporary hack for sea-ice dynamics on the cube:
116      metric terms are ignored and it is assumed that
117      there is no sea-ice on cube faces 1, 2, 4, and 5.
118    
119    checkpoint52f_post
120    o added exch2 cube routines to pkg/exch2
121    o modified hs94.cs-32x32x5 to use it
122    o added new grid files to hs94.cs-32x32x5
123    checkpoint52f_pre
124    
125    checkpoint52e_post
126    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
127      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
128    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
129      to work with implicit vertical advection and AB ;
130    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
131    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
132     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
133    checkpoint52e_pre
134    
135    o fix bug in impldiff when Nr=1 or Nr=2.
136    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
137    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
138    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
139      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
140    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
141    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
142    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
143    
144    checkpoint52d_post
145    o re-tiled many expts to allow comparison in multi-processor mode
146      - updated output accordingly
147      - changed hs94.128x64x5 to use intial T from file rather than use the
148        random number generator
149    o add infrastructure in model routines for fizhi and gridalt packages
150    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
151    o changes to permit hi-res, cubed-sphere, configuration
152      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
153      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
154      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
155        of surface winds for the cube
156      (A verification experiment, based on global_ocean.cs32x15, but with
157       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
158       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
159       complete with example surface forcing files and matlab scripts to look
160       at the output and compare it with that of global_ocean.cs32x15.)
161    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
162       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
163       to conform to the common rule.
164    o check-in the first version of the coupler + interfaces for multi-components
165       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
166       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
167       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
168       - ocean and atmos. share the same horizontal grid (no interpolation).
169       - exchanges between component and coupler is done in forward_step
170    o new verification experiment, cpl_aim+ocn:
171       coupled ocean - AIM atmosphere on cs32 grid.
172    
173    checkpoint52d_pre
174    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
175    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
176    
177    checkpoint52c_post
178    o Fixing OPTIONS files for use of exf:
179      - ALLOW_ECCO not needed
180      - ECCO_CPPOPTIONS.h should not be included from
181        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
182        as has been the case in the past
183      - All cal/exf related options are currently set in
184        single header file. Should remain so until we
185        agree on a consistent new policy.
186    o Removed all CPP options for cal package.
187      cal has no more CPP options.
188    o modified STOREs in GAD_ADVECTION
189    o corrected key comp. for passkey
190    
191    checkpoint52b_post
192    o new version: "thsice" of thermodynamic sea-ice pkg:
193     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
194     - modify fluxes but do not change theta directly;
195     - light cleaning of bulk_force pkg (still needed with thsice).
196     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
197       + output_thsice.txt to test thsice & bulk_force pkgs.
198    o put back grid & coriolis monitor output.
199    checkpoint52b_pre
200    
201    o call "do_the_model_io" at the beginning (=> dump initial state)
202    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
203    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
204      (need info on NUMBER_OF_PTRACERS)
205    o missing PTRACERS headers in some routines
206    o default tamc.h in pkg/autodiff supposed to crash
207      to ensure proper customization
208    
209    checkpoint52a_post
210    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
211      - moved surfaceTendencyTice from pkg/seaice to main code
212      - subroutine FREEZE_SURFACE now limits only surface temperature
213        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
214        => new output.txt for global_ocean.cs32x15 & global_with_exf
215      - keep the old version of FREEZE for backward compatibility;
216        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
217      - corresponding modifs for TAF directives
218    o added surface flux output variables to TIMEAVE_STATVARS
219    o time-averaged output for pkg/ptracers
220    o fix problem with ECCO-related divided adjoint
221      snapshot file was missing some ad-variables,
222      but no warning issued by TAF
223    
224    checkpoint52a_pre
225    o some bug fixes for #undef REAL4_IS_SLOW
226    
227    checkpoint52 = ecco_c52_e35
228    o after testing adjoints of checkpoint51u_post
229    
230    checkpoint51u_post
231    o this is the post-merge tag of the ecco-branch
232      (needs another clean checkout and re-testing)
233    o various natl_box_adjoint configs and results
234      but no input fields
235    o obcs adjoint not yet merged!
236    o adding ECCO global 1x1 and 2x2 degree configs
237    o updated/extended some store directives for seaice
238    o pkg/ecco now containes ecco-specific part of cost function
239    o top level routines the_main_loop, forward_step
240      supersede those in model/src/
241      previous input data.cost now in data.ecco
242      (new namelist ecco_cost_nml)
243    o in ctrl/ cleaned some cross-dependencies and updated CPP options
244    
245    checkpoint51t_post
246    o this is the pre-merge tag of the ecco-branch
247    
248    checkpoint51s_post
249    o cleanup: removed various obsolete #define-s
250    o pkg/grdchk
251      - renamed 'ph-grd 3' to 'grad-res'
252      - merged from ecco-branch
253        (remaining bug fixes for obcs gradient checks)
254      - additional high-precision output for testreport
255        (grep for 'precision_grdchk_result')
256    
257    checkpoint51r_post
258    o cleaned up or removed CPP_OPTIONS.h files
259    o updated results for some of the tests to reflect the new
260      optfiles (-ieee: -O0 instead of -O3)
261    
262    checkpoint51q_post
263    o cd_code:
264      - moved cd_scheme.F -> cd_code_scheme.F
265      - separate read_checkpoint from cd_code_ini_vars.F
266      - separated cd_code part from write_checkpoint
267      - updated AD_SOURCE, generated .flow
268      - added CD_CODE_VARS.h to the_main_loop
269      - Moving cd_code specific store dir.s to pkg/cd_code
270    o ctrl package totally restructured
271      - pack/unpack now optional and decoupled from
272        xx_/adxx_ I/O
273      - ctrl_pack/unpack cleaned
274        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
275      - confined inclusion of AD_CONFIG.h to where necessary.
276    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
277    
278    checkpoint51p_post
279    o create initial cd_code package
280      - WARNING: the initialization of fields within packages
281        is broken because INI_FIELDS (where READ_CHECKPOINT is
282        called) is called *before* PACKAGES_INIT_VARIABLES.
283        This seems to be backwards since
284        1) its important to initially zero the entire field including
285           the "halo" region
286        2) zeroing needs to be done *before* reading pickup info
287           and the pickup call might or might not happen in any
288           particular run
289      - this needs an overhaul for R2
290    o cleanup verification/*/code/GMREDI_OPTIONS.h
291    o cleanup testreport
292    
293    checkpoint51o_post
294    o bringing AD-related verif's up to date with genmake2
295      - carbon/
296      - global_ocean.90x40x15/
297      - hs.94.1x64x5/
298      - (front_relax/ )
299    o (more) consistent directory structure for AD-related verif.'s
300    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
301    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
302    o bug fix in find_alpha.F for MDJWF:
303      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
304        change rho -> rho-rhoConst
305      - replace call find_rho to find_rhonum
306    o initialisation of rFlx extended to full array (required by TAF)
307      and shifted to thermodynamics
308    o removed PTRACERS.h in ptracers routine
309    o added surfacetendencyPtr to S/R parameter list pracers_forcing
310    o Correcting initialisations for fVerU, fVerV.
311    o helping TAF to recognize dependency on kUp for
312      fVerU, fVerV
313    o Replacing delZ by delR in pkg/ctrl/
314    checkpoint51o_pre
315    
316    o undid all of cp51 pending some cleanups and discussion
317    o added the [#include "AD_CONFIG.h"] statement to all files that need
318       it for adjoint/tl #defines
319     o re-worked the build logic in genmake2 to support AD_CONFIG.h
320     o removed tools/genmake since it no longer works
321    
322    checkpoint51n_post
323    o modifications to make FREEZE flux visible to pkg/kpp
324      - moved surfaceTendencyTice from pkg/seaice to main code
325      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
326      - subroutine FREEZE now limits only surface temperature
327        (this means new output.txt for global_ocean.90x40x15,
328         global_ocean.cs32x15, and global_with_exf)
329    o added surface flux output variables to TIMEAVE_STATVARS
330    
331    checkpoint51n_pre
332    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
333    o added [#include "AD_CONFIG.h"] to all files that use the following
334      defines:
335      - ALLOW_ADJOINT_RUN
336      - ALLOW_TANGENTLINEAR_RUN
337      - ALLOW_ECCO_OPTIMIZATION
338    
339    checkpoint51m_post
340    o incorporating changes to get TAMC/TAF working in genmake2
341      - added new TAMC/TAF targets to the Makefile
342      - various cleanups related to package handling
343      - these changes should have no impact on the forward model
344    
345    checkpoint51l_post
346    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
347     - faster algorithm for cal_addtime.F
348     - higher precision arithmetic, where needed
349     - pkg/exf *startdate variables changed from calendar date to
350       model integration time
351    
352    checkpoint51l_pre
353    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
354    o enable to apply restoring on S & T only in a latitude band.
355    o update output (external_forcing_surf modif. change truncation errors)
356       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
357    
358    checkpoint51k_post
359    o change default to: useNHMTerms=.FALSE.
360     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
361       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
362     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
363        exp1, ideal_2D_oce
364     - change data file of oceanic exp (leave the results unchanged for now)
365       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
366    o set gravitySign automatically according to the vertical coordinate used
367      (and change sign: back to "logical" value: +1 when R increases downward)
368    o added an include barrier to the default CPP_OPTIONS.h and
369      removed the #include "PACKAGES_CONFIG.h" from it
370    o fix a bug in mom_fluxform (from chk51j_post)
371    
372    checkpoint51j_post
373    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
374    o adjusted some flow directives (dynamics, thermodynamics)
375    o added cubed-sphere case to test cost function
376    o heckpoint_lev?_directives.h now include
377      pkg-specific directives, whenever those are enabled.
378    o Moving pkg-specific flow directives to corresponding pkg
379      Moving pkg-specific differentiation list to corresponding pkg
380      Moving pkg-specific checkpoint-lev storing to corresponding pkg
381      ---> conventions are
382           - pkg_ad.flow
383           - pkg_ad_diff.list
384           - pkg_ad_check_lev?_dir.h
385    
386    checkpoint51i_post
387    o merge of the branch-genmake2
388      - knowingly breaks the older genmake
389      - automatic generation of all ALLOW_${PKG_NAME} defines
390      - new testreport supersedes older testscript
391    o large number of package inclusion and header cleanups
392    checkpoint51i_pre
393    
394    o new output for adjoin of global ocean vector invariant
395    o fix for checkpoint of thermodynamic seaice and bulk_force
396    o Steph gchem various cleanups
397    
398    checkpoint 51h_pre
399    o fixed some single quotes
400    o modify gchem pkg to be more versatile
401    o modifications to clean up dic pkg
402    o add pkg/cfc
403    
404    checkpoint51g_post
405    o provide links for ARPACK and ADM*TLM
406    o start removing verification/vero/
407    o update AD-related stuff
408      (in particular some IF-statements in model/src/ routines)
409    o adding to verification/global_ocean.90x40x15/ adjoint of
410      vector invariant setup
411    
412    checkpoint51f_post
413    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
414    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
415      of tracer Green's fucntions for ocean inversion project.
416    
417    checkpoint51f_pre
418    o Added on-the-fly spatial interpolation capability
419        "USE_EXF_INTERPOLATION" to pkg/exf.
420      - This is a temporary Cartesian-grid hack until
421        the super-duper ESMF coupler becomes available.
422      - See verification/global_with_exf/README for usage example.
423      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
424        flags and modified pkg/seaice accordingly.
425    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
426        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
427        non-local transport term.
428    
429    checkpoint51e_post
430    o pkg/mom_vecinv:
431      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
432      - add time-ave diagnostic of vorticity advection.
433    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
434    o atmospheric geopotential: - include water vapor effect;
435                                - use p^kappa in p* scaling.
436    o land pkg: read initial state from files.
437    o AIM : add stratospheric drag in the upper level
438    
439    checkpoint51d_post
440    o change function ILNBLNK (=> last non-blank char.) to return zero
441      (instead of the string length) when the string. char is empty
442    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
443    o modif's to restore TAMC compatibility
444      - avoid "_d" constructs in PARAMETER declarations
445      - avoid interrupting lines by comment lines
446    o Use cluster local disks for purely local I/O
447      vs. globally visible disks needed for ctrl stuff
448      (merged from ecco-branch)
449      - new active_file_loc... and mdsio_..._loc routines
450      - affected packages: autodiff, ctrl, grdchk, mdsio
451    
452    checkpoint51c_post
453    o introducing integer flag debugLevel
454      - debLevZero: suppress all output
455      - debLevA: standard
456      - debLevB: equivalent to current debugMode=.TRUE.
457    o introducing pathname variable mdsioLocalDir for mdsio
458      that can be specified at runtime
459      (relevant for cluster I/O to local disk)
460    `
461    >>>checkpoint51b_post
462    adjoint of ptracers
463    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
464    o extended state in checkpoint_lev?, etc.
465    o alternative ctrl/cost with tr1 or ptracer
466    o new comlev1_bibj_ptracers
467    o new ptracers.flow
468    o made ptracers_forcing same as external_forcing_s
469    o added verification for adjoint with ptracers
470      - adm. grdchk fail so far
471      - tlm. grdchk OK
472      - checked tapelev/comlev recomputations: OK
473    <<<checkpoint51b_pre
474    
475    checkpoint51a_post
476    o added code for biogeochemistry package
477      - new pkgs: dic, gchem
478      - new subroutine in ptracers
479    o modify code for biogeo packages
480      - in model/src and pkg/ptracers
481    
482    checkpoint51
483    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
484      - autodiff, ctrl, exf, grdchk, seaice
485      kept separate packages
486      - cost, ecco, obcs
487    o updating verification/internal_wave, verification/lab_sea
488      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
489    
490    checkpoint50i_post
491    o Preparing next differentiable checkpoint and sync
492      of MAIN vs. ecco-branch
493      - 1st step: this one is differentiable
494      - 2nd step: next(! not this) checkpoint will have updated packages
495                  from ecco-branch)
496    
497    checkpoint50h_post
498    o new package "land": provide surface BC for AIM.
499    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
500    o AIM: use true log-P extrapolation for near surface temp (= as in
501        F.Molteni paper) ; update aim.5l_cs output.
502    o New variable in PARM03 for more flexible pickups
503    o somewhat cleaned package initialisation sequence for
504      ctrl/ cost/ ecco/ in packages_... routines
505    
506    checkpoint50g_post
507    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
508      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
509      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
510        made the default because of faster convergence than ADI
511    
512    checkpoint50f_post
513    o exf totally restructured
514      - replaced all exf_set_ routines by one generic exf_set_gen.F
515        and made sure it's still differentiable
516      - split exf_getffields.F into new exf_bulkformulae.F
517      - exf_inscal_/exf_outscal_ suffixes consistent with field names
518      - updated adjoint/makefile and relevant verif. accordingly
519    
520    checkpoint50f_pre
521     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
522          + change Evap over land. (update aim.5l_cs output)
523     o added missing .cvsignores and made uniform across expts
524     o changed configuration of tidal_basin_2d expt
525     o added pkg/debug functions for tracing code in fatal crashes
526     o tidied pkg/monitor to use MONITOR_OPTIONS.h
527     o new fn in pkg/monitor to stop model if solution grows too big
528     o removed lots of single quotes from comments
529    
530    checkpoint50e_post
531    o make KPP work with PTRACERS
532     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
533       nearly a copy of kpp_transport_s
534     - there is no analogue to SurfaceTendencyS, so I have to use
535       gPtr(of the surface layer) instead
536    o add a new platform SunFire+mpi (SunFire 15000) to genmake
537    checkpoint50e_pre
538    
539    checkpoint50d_post
540    o change kpp output from multiple-record state files to single-record state
541      files analogous to write_state.F
542    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
543      analogous to the cg2d-related output.
544    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
545      so that writing to internal file fn (with length 512) fails.
546    checkpoint50d_pre
547    
548    checkpoint50c_post
549    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
550    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
551    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
552    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
553    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
554    
555    checkpoint50c_pre
556    Merging from release1_p13:
557    o bug fix for pkg/seaice dynamic solver
558    o Added SEAICE_initialHEFF to pkg/seaice
559    
560    checkpoint50b_post
561    o store u*,v* in gU,V instead of in guNm1,gvNm1
562    o in order to put the momForcing out of the Adams-Bashforth:
563      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
564      to timestep.F
565    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
566    o re-generate output for highly sensitive test-exp:
567       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
568    
569    checkpoint50b_pre
570    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
571    o corrected CPP option mismatch in exf_Bulk... functions for case
572      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
573    
574    checkpoint50a_post
575    o Bug fix for merging between c50 and KPP.
576      ikey was passed from thermodynamics to kpp_calc via
577      common block rather than being recomputed in kpp_calc,
578      in contradiction with new key itdkey.
579      New key ikppkey created, and tamc.h headers updated.
580    
581    checkpoint50
582    - 2nd step of merge with ecco-branch:
583      merge changes in ecco-branch back into main trunk
584    - bug fix in find_alpha
585    - more storing in gmredi_calc_tensor.F, kpp_routines.F
586    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
587    - merged some sliced AD support routines
588    
589  checkpoint49  checkpoint49
590    merged from ecco-branch:
591    o exf:
592      - Enable initialisation of forcing fields to constant
593        (runtime) values.
594      - in exf_getffields.F
595        Reduce i-/j-loop to interior domain, discarding overlaps.
596        That also fixes wrong TAF-key computations for key_1, key_2
597        with bulf formulae.
598      - exf_init.F modify #ifdef for exf_init_evap
599      - exf_getffieldrec.F, ctrl_getrec.F
600        The following INT-usages are not safe:
601          fldsecs  = int(fldsecs/fldperiod)*fldperiod
602          fldcount = int(fldsecs/fldperiod) + 1
603        and were modified.
604    o autodiff: checkpoint_lev...
605      - updated storing for bulk formulae (some arrays were missing)
606      - added state for seaice package
607      - synchronized with main branch
608    o DIVA:
609      Modif.s in
610      - the_main_loop.F
611      - the_model_main.F
612      and added cost_final_restore.F cost_final_store.F
613      o With these changes, it is possible to fully separate
614        the first forward run to compute the cost function (mdthe_main_loop)
615        and adjoint runs over individual DIVA intervals (adthe_main_loop)
616        into separate model executions.
617        This enables better tuning of DIVA to given queue sizes.
618      o Loss of cost function value in consecutive DIVA runs is
619        fixed by storing to 'costfinal' file.
620      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
621        beginning/end of adjoint integration is accounted for.
622      The current changes apply to TAF-1.4.26.
623      TAF has one remaining bug, requiring one manual change
624      (see MITgcm manual).
625    o cal: synchronized between MAIN and ecco-branch
626    
627    checkpoint48i_post
628  o Changes to restore differentiability of code w.r.t. previous tag  o Changes to restore differentiability of code w.r.t. previous tag
629    (mostly adding new routines to make list and replacing    (mostly adding new routines to make list and replacing
630    pressure by totPhiHyd).    pressure by totPhiHyd).

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