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revision 1.13 by cnh, Wed Sep 9 15:24:19 1998 UTC revision 1.213 by heimbach, Tue Nov 25 16:28:48 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o Fixing OPTIONS files for use of exf:
7      - ALLOW_ECCO not needed
8      - ECCO_CPPOPTIONS.h should not be included from
9        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
10        as has been the case in the past
11      - All cal/exf related options are currently set in
12        single header file. Should remain so until we
13        agree on a consistent new policy.
14    
15    checkpoint52b_post
16    o new version: "thsice" of thermodynamic sea-ice pkg:
17     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
18     - modify fluxes but do not change theta directly;
19     - light cleaning of bulk_force pkg (still needed with thsice).
20     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
21       + output_thsice.txt to test thsice & bulk_force pkgs.
22    o put back grid & coriolis monitor output.
23    checkpoint52b_pre
24    
25    o call "do_the_model_io" at the beginning (=> dump initial state)
26    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
27    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
28      (need info on NUMBER_OF_PTRACERS)
29    o missing PTRACERS headers in some routines
30    o default tamc.h in pkg/autodiff supposed to crash
31      to ensure proper customization
32    
33    checkpoint52a_post
34    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
35      - moved surfaceTendencyTice from pkg/seaice to main code
36      - subroutine FREEZE_SURFACE now limits only surface temperature
37        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
38        => new output.txt for global_ocean.cs32x15 & global_with_exf
39      - keep the old version of FREEZE for backward compatibility;
40        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
41      - corresponding modifs for TAF directives
42    o added surface flux output variables to TIMEAVE_STATVARS
43    o time-averaged output for pkg/ptracers
44    o fix problem with ECCO-related divided adjoint
45      snapshot file was missing some ad-variables,
46      but no warning issued by TAF
47    
48    checkpoint52a_pre
49    o some bug fixes for #undef REAL4_IS_SLOW
50    
51    checkpoint52 = ecco_c52_e35
52    o after testing adjoints of checkpoint51u_post
53    
54    checkpoint51u_post
55    o this is the post-merge tag of the ecco-branch
56      (needs another clean checkout and re-testing)
57    o various natl_box_adjoint configs and results
58      but no input fields
59    o obcs adjoint not yet merged!
60    o adding ECCO global 1x1 and 2x2 degree configs
61    o updated/extended some store directives for seaice
62    o pkg/ecco now containes ecco-specific part of cost function
63    o top level routines the_main_loop, forward_step
64      supersede those in model/src/
65      previous input data.cost now in data.ecco
66      (new namelist ecco_cost_nml)
67    o in ctrl/ cleaned some cross-dependencies and updated CPP options
68    
69    checkpoint51t_post
70    o this is the pre-merge tag of the ecco-branch
71    
72    checkpoint51s_post
73    o cleanup: removed various obsolete #define-s
74    o pkg/grdchk
75      - renamed 'ph-grd 3' to 'grad-res'
76      - merged from ecco-branch
77        (remaining bug fixes for obcs gradient checks)
78      - additional high-precision output for testreport
79        (grep for 'precision_grdchk_result')
80    
81    checkpoint51r_post
82    o cleaned up or removed CPP_OPTIONS.h files
83    o updated results for some of the tests to reflect the new
84      optfiles (-ieee: -O0 instead of -O3)
85    
86    checkpoint51q_post
87    o cd_code:
88      - moved cd_scheme.F -> cd_code_scheme.F
89      - separate read_checkpoint from cd_code_ini_vars.F
90      - separated cd_code part from write_checkpoint
91      - updated AD_SOURCE, generated .flow
92      - added CD_CODE_VARS.h to the_main_loop
93      - Moving cd_code specific store dir.s to pkg/cd_code
94    o ctrl package totally restructured
95      - pack/unpack now optional and decoupled from
96        xx_/adxx_ I/O
97      - ctrl_pack/unpack cleaned
98        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
99      - confined inclusion of AD_CONFIG.h to where necessary.
100    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
101    
102    checkpoint51p_post
103    o create initial cd_code package
104      - WARNING: the initialization of fields within packages
105        is broken because INI_FIELDS (where READ_CHECKPOINT is
106        called) is called *before* PACKAGES_INIT_VARIABLES.
107        This seems to be backwards since
108        1) its important to initially zero the entire field including
109           the "halo" region
110        2) zeroing needs to be done *before* reading pickup info
111           and the pickup call might or might not happen in any
112           particular run
113      - this needs an overhaul for R2
114    o cleanup verification/*/code/GMREDI_OPTIONS.h
115    o cleanup testreport
116    
117    checkpoint51o_post
118    o bringing AD-related verif's up to date with genmake2
119      - carbon/
120      - global_ocean.90x40x15/
121      - hs.94.1x64x5/
122      - (front_relax/ )
123    o (more) consistent directory structure for AD-related verif.'s
124    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
125    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
126    o bug fix in find_alpha.F for MDJWF:
127      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
128        change rho -> rho-rhoConst
129      - replace call find_rho to find_rhonum
130    o initialisation of rFlx extended to full array (required by TAF)
131      and shifted to thermodynamics
132    o removed PTRACERS.h in ptracers routine
133    o added surfacetendencyPtr to S/R parameter list pracers_forcing
134    o Correcting initialisations for fVerU, fVerV.
135    o helping TAF to recognize dependency on kUp for
136      fVerU, fVerV
137    o Replacing delZ by delR in pkg/ctrl/
138    checkpoint51o_pre
139    
140    o undid all of cp51 pending some cleanups and discussion
141    o added the [#include "AD_CONFIG.h"] statement to all files that need
142       it for adjoint/tl #defines
143     o re-worked the build logic in genmake2 to support AD_CONFIG.h
144     o removed tools/genmake since it no longer works
145    
146    checkpoint51n_post
147    o modifications to make FREEZE flux visible to pkg/kpp
148      - moved surfaceTendencyTice from pkg/seaice to main code
149      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
150      - subroutine FREEZE now limits only surface temperature
151        (this means new output.txt for global_ocean.90x40x15,
152         global_ocean.cs32x15, and global_with_exf)
153    o added surface flux output variables to TIMEAVE_STATVARS
154    
155    checkpoint51n_pre
156    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
157    o added [#include "AD_CONFIG.h"] to all files that use the following
158      defines:
159      - ALLOW_ADJOINT_RUN
160      - ALLOW_TANGENTLINEAR_RUN
161      - ALLOW_ECCO_OPTIMIZATION
162    
163    checkpoint51m_post
164    o incorporating changes to get TAMC/TAF working in genmake2
165      - added new TAMC/TAF targets to the Makefile
166      - various cleanups related to package handling
167      - these changes should have no impact on the forward model
168    
169    checkpoint51l_post
170    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
171     - faster algorithm for cal_addtime.F
172     - higher precision arithmetic, where needed
173     - pkg/exf *startdate variables changed from calendar date to
174       model integration time
175    
176    checkpoint51l_pre
177    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
178    o enable to apply restoring on S & T only in a latitude band.
179    o update output (external_forcing_surf modif. change truncation errors)
180       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
181    
182    checkpoint51k_post
183    o change default to: useNHMTerms=.FALSE.
184     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
185       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
186     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
187        exp1, ideal_2D_oce
188     - change data file of oceanic exp (leave the results unchanged for now)
189       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
190    o set gravitySign automatically according to the vertical coordinate used
191      (and change sign: back to "logical" value: +1 when R increases downward)
192    o added an include barrier to the default CPP_OPTIONS.h and
193      removed the #include "PACKAGES_CONFIG.h" from it
194    o fix a bug in mom_fluxform (from chk51j_post)
195    
196    checkpoint51j_post
197    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
198    o adjusted some flow directives (dynamics, thermodynamics)
199    o added cubed-sphere case to test cost function
200    o heckpoint_lev?_directives.h now include
201      pkg-specific directives, whenever those are enabled.
202    o Moving pkg-specific flow directives to corresponding pkg
203      Moving pkg-specific differentiation list to corresponding pkg
204      Moving pkg-specific checkpoint-lev storing to corresponding pkg
205      ---> conventions are
206           - pkg_ad.flow
207           - pkg_ad_diff.list
208           - pkg_ad_check_lev?_dir.h
209    
210    checkpoint51i_post
211    o merge of the branch-genmake2
212      - knowingly breaks the older genmake
213      - automatic generation of all ALLOW_${PKG_NAME} defines
214      - new testreport supersedes older testscript
215    o large number of package inclusion and header cleanups
216    checkpoint51i_pre
217    
218    o new output for adjoin of global ocean vector invariant
219    o fix for checkpoint of thermodynamic seaice and bulk_force
220    o Steph gchem various cleanups
221    
222    checkpoint 51h_pre
223    o fixed some single quotes
224    o modify gchem pkg to be more versatile
225    o modifications to clean up dic pkg
226    o add pkg/cfc
227    
228    checkpoint51g_post
229    o provide links for ARPACK and ADM*TLM
230    o start removing verification/vero/
231    o update AD-related stuff
232      (in particular some IF-statements in model/src/ routines)
233    o adding to verification/global_ocean.90x40x15/ adjoint of
234      vector invariant setup
235    
236    checkpoint51f_post
237    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
238    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
239      of tracer Green's fucntions for ocean inversion project.
240    
241    checkpoint51f_pre
242    o Added on-the-fly spatial interpolation capability
243        "USE_EXF_INTERPOLATION" to pkg/exf.
244      - This is a temporary Cartesian-grid hack until
245        the super-duper ESMF coupler becomes available.
246      - See verification/global_with_exf/README for usage example.
247      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
248        flags and modified pkg/seaice accordingly.
249    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
250        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
251        non-local transport term.
252    
253    checkpoint51e_post
254    o pkg/mom_vecinv:
255      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
256      - add time-ave diagnostic of vorticity advection.
257    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
258    o atmospheric geopotential: - include water vapor effect;
259                                - use p^kappa in p* scaling.
260    o land pkg: read initial state from files.
261    o AIM : add stratospheric drag in the upper level
262    
263    checkpoint51d_post
264    o change function ILNBLNK (=> last non-blank char.) to return zero
265      (instead of the string length) when the string. char is empty
266    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
267    o modif's to restore TAMC compatibility
268      - avoid "_d" constructs in PARAMETER declarations
269      - avoid interrupting lines by comment lines
270    o Use cluster local disks for purely local I/O
271      vs. globally visible disks needed for ctrl stuff
272      (merged from ecco-branch)
273      - new active_file_loc... and mdsio_..._loc routines
274      - affected packages: autodiff, ctrl, grdchk, mdsio
275    
276    checkpoint51c_post
277    o introducing integer flag debugLevel
278      - debLevZero: suppress all output
279      - debLevA: standard
280      - debLevB: equivalent to current debugMode=.TRUE.
281    o introducing pathname variable mdsioLocalDir for mdsio
282      that can be specified at runtime
283      (relevant for cluster I/O to local disk)
284    `
285    >>>checkpoint51b_post
286    adjoint of ptracers
287    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
288    o extended state in checkpoint_lev?, etc.
289    o alternative ctrl/cost with tr1 or ptracer
290    o new comlev1_bibj_ptracers
291    o new ptracers.flow
292    o made ptracers_forcing same as external_forcing_s
293    o added verification for adjoint with ptracers
294      - adm. grdchk fail so far
295      - tlm. grdchk OK
296      - checked tapelev/comlev recomputations: OK
297    <<<checkpoint51b_pre
298    
299    checkpoint51a_post
300    o added code for biogeochemistry package
301      - new pkgs: dic, gchem
302      - new subroutine in ptracers
303    o modify code for biogeo packages
304      - in model/src and pkg/ptracers
305    
306    checkpoint51
307    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
308      - autodiff, ctrl, exf, grdchk, seaice
309      kept separate packages
310      - cost, ecco, obcs
311    o updating verification/internal_wave, verification/lab_sea
312      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
313    
314    checkpoint50i_post
315    o Preparing next differentiable checkpoint and sync
316      of MAIN vs. ecco-branch
317      - 1st step: this one is differentiable
318      - 2nd step: next(! not this) checkpoint will have updated packages
319                  from ecco-branch)
320    
321    checkpoint50h_post
322    o new package "land": provide surface BC for AIM.
323    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
324    o AIM: use true log-P extrapolation for near surface temp (= as in
325        F.Molteni paper) ; update aim.5l_cs output.
326    o New variable in PARM03 for more flexible pickups
327    o somewhat cleaned package initialisation sequence for
328      ctrl/ cost/ ecco/ in packages_... routines
329    
330    checkpoint50g_post
331    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
332      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
333      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
334        made the default because of faster convergence than ADI
335    
336    checkpoint50f_post
337    o exf totally restructured
338      - replaced all exf_set_ routines by one generic exf_set_gen.F
339        and made sure it's still differentiable
340      - split exf_getffields.F into new exf_bulkformulae.F
341      - exf_inscal_/exf_outscal_ suffixes consistent with field names
342      - updated adjoint/makefile and relevant verif. accordingly
343    
344    checkpoint50f_pre
345     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
346          + change Evap over land. (update aim.5l_cs output)
347     o added missing .cvsignores and made uniform across expts
348     o changed configuration of tidal_basin_2d expt
349     o added pkg/debug functions for tracing code in fatal crashes
350     o tidied pkg/monitor to use MONITOR_OPTIONS.h
351     o new fn in pkg/monitor to stop model if solution grows too big
352     o removed lots of single quotes from comments
353    
354    checkpoint50e_post
355    o make KPP work with PTRACERS
356     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
357       nearly a copy of kpp_transport_s
358     - there is no analogue to SurfaceTendencyS, so I have to use
359       gPtr(of the surface layer) instead
360    o add a new platform SunFire+mpi (SunFire 15000) to genmake
361    checkpoint50e_pre
362    
363    checkpoint50d_post
364    o change kpp output from multiple-record state files to single-record state
365      files analogous to write_state.F
366    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
367      analogous to the cg2d-related output.
368    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
369      so that writing to internal file fn (with length 512) fails.
370    checkpoint50d_pre
371    
372    checkpoint50c_post
373    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
374    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
375    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
376    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
377    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
378    
379    checkpoint50c_pre
380    Merging from release1_p13:
381    o bug fix for pkg/seaice dynamic solver
382    o Added SEAICE_initialHEFF to pkg/seaice
383    
384    checkpoint50b_post
385    o store u*,v* in gU,V instead of in guNm1,gvNm1
386    o in order to put the momForcing out of the Adams-Bashforth:
387      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
388      to timestep.F
389    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
390    o re-generate output for highly sensitive test-exp:
391       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
392    
393    checkpoint50b_pre
394    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
395    o corrected CPP option mismatch in exf_Bulk... functions for case
396      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
397    
398    checkpoint50a_post
399    o Bug fix for merging between c50 and KPP.
400      ikey was passed from thermodynamics to kpp_calc via
401      common block rather than being recomputed in kpp_calc,
402      in contradiction with new key itdkey.
403      New key ikppkey created, and tamc.h headers updated.
404    
405    checkpoint50
406    - 2nd step of merge with ecco-branch:
407      merge changes in ecco-branch back into main trunk
408    - bug fix in find_alpha
409    - more storing in gmredi_calc_tensor.F, kpp_routines.F
410    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
411    - merged some sliced AD support routines
412    
413    checkpoint49
414    merged from ecco-branch:
415    o exf:
416      - Enable initialisation of forcing fields to constant
417        (runtime) values.
418      - in exf_getffields.F
419        Reduce i-/j-loop to interior domain, discarding overlaps.
420        That also fixes wrong TAF-key computations for key_1, key_2
421        with bulf formulae.
422      - exf_init.F modify #ifdef for exf_init_evap
423      - exf_getffieldrec.F, ctrl_getrec.F
424        The following INT-usages are not safe:
425          fldsecs  = int(fldsecs/fldperiod)*fldperiod
426          fldcount = int(fldsecs/fldperiod) + 1
427        and were modified.
428    o autodiff: checkpoint_lev...
429      - updated storing for bulk formulae (some arrays were missing)
430      - added state for seaice package
431      - synchronized with main branch
432    o DIVA:
433      Modif.s in
434      - the_main_loop.F
435      - the_model_main.F
436      and added cost_final_restore.F cost_final_store.F
437      o With these changes, it is possible to fully separate
438        the first forward run to compute the cost function (mdthe_main_loop)
439        and adjoint runs over individual DIVA intervals (adthe_main_loop)
440        into separate model executions.
441        This enables better tuning of DIVA to given queue sizes.
442      o Loss of cost function value in consecutive DIVA runs is
443        fixed by storing to 'costfinal' file.
444      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
445        beginning/end of adjoint integration is accounted for.
446      The current changes apply to TAF-1.4.26.
447      TAF has one remaining bug, requiring one manual change
448      (see MITgcm manual).
449    o cal: synchronized between MAIN and ecco-branch
450    
451    checkpoint48i_post
452    o Changes to restore differentiability of code w.r.t. previous tag
453      (mostly adding new routines to make list and replacing
454      pressure by totPhiHyd).
455    o Updated and merged grdchk package
456      - has both ADM and TLM checks
457      - works for single- and multi-proc.
458      - output cleaned
459      - worked successfully for parallel DIVA
460    o genmake:
461      - Adding -platform=SP4
462      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
463    o Modif. for DIVA:
464      ctrl_unpack should not be called in intermediate DIVA interval.
465      (similar thing would apply for active files such as
466      tbar, sbar, psbar, which should not be reinitialised;
467      only relevant for ecco-branch)
468    
469    checkpoint48h_post
470    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
471    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
472    o Added SEAICE_initialHEFF to pkg/seaice
473    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
474    
475    checkpoint48g_post
476    --- EOS:
477    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
478      store total Potential in totPhyHyd for diagnostics & EOS.
479    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
480    --- Pressure/geopotential gradient:
481    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
482    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
483      ( changes results of global_ocean_pressure )
484    o NLFS + z-coord.: add eta*Rho' contribution.
485    o accurate phiHyd when using interface-W at the middle between 2 centers
486     ( changes results of ideal_2D_oce )
487    o includes r* 2nd term in potential gradient.
488    
489    checkpoint48f_post
490    Merging from release1_p12:
491    o Modifications for using pkg/exf with pkg/seaice
492      - improved description of the various forcing configurations
493      - added basic radiation bulk formulae to pkg/exf
494      - units/sign fix for evap computation in exf_getffields.F
495      - updated verification/global_with_exf/results/output.txt
496    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
497      (SBO) core products, including oceanic mass, center-of-mass,
498      angular, and bottom pressure (see pkg/sbo/README.sbo).
499    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
500      to avoid negative values in shallow regions.
501      - updated verification/natl_box/results/output.txt
502      - updated verification/lab_sea/results/output.txt
503    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
504    o Added useSingleCpuIO option (see PARAMS.h).
505    o Updated useSingleCpuIO option in mdsio_writefield.F to
506      work with multi-field files, e.g., for single-file pickup.
507    o pkg/seaice:
508      - bug fix in growth.F: QNET for no shortwave case
509      - added HeffFile for specifying initial sea-ice thickness
510      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
511    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
512      kpp_transport_t.F, forward_step.F, and the_main_loop.F
513    o pkg/seaice:
514      - adjoint-friendly modifications
515      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
516    
517    checkpoint48e_post
518    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
519    o dynamics: change definition of computational domain & adapt mom_fluxform
520      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
521    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
522        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
523        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
524        global_ocean.90x40x15 global_with_exf global_ocean_pressure
525        inverted_barometer solid-body.cs-32x32x1
526      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
527    
528    checkpoint48d_post
529    o in preparation for r*:
530     a) use pre-computed gradient of hydrostatic potential:
531        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
532     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
533        => affects results of glob_oce_pressure (different truncation error)  
534      update output.txt of ideal_2D_oce & global_ocean_pressure
535    
536    checkpoint48d_pre
537    o in preparation for r*:
538      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
539      pass the 2 comp. of the grad. as arguments to momentum S/R.
540      but for the moment, only used if it does not change the results.
541    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
542    
543    checkpoint48c_post
544    Modifications in treatment of initial flux forcing controls
545    to avoid extra storing of flux fields.
546    
547    checkpoint48c_pre
548    o Added tidal_basin_2d experiment (currently 1D!)
549    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
550    
551    checkpoint48b_post
552    o r* coordinate added in #ifdef NONLIN_FRSURF block.
553     (modification to pressure gradient not yet implemented)
554    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
555      (for U & V) that are used for vertical advection of momentum.
556    
557    checkpoint48a_post
558    o In preparation for r*, use temp. array to compute vertical transport
559       in flux-form momentum pkg. => change results of few test-exp.
560      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
561                        lab_sea, natl_box & plume_on_slope
562    
563    checkpoint48
564    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
565    
566    checkpoint47j_post
567    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
568    o moved adexch from forward_step to addummy_in_stepping
569    o added exch in ctrl_map_...
570    o aveFreq.=0. at end of cost_final to avoid overwrite in
571      reverse checkpointing loop
572    o Yet more changes in gmredi:
573      * adgmredi_calc_tensor
574        avoiding all recomputation of gmredi_slope_limit
575      * adgmredi_x/y/rtransport
576        added flag for excessive storing to avoid recomp. of
577        u/v/rtans, dTdx/y/z
578        -> this is not really necessary and very memory-consuming
579      * adgmredi_slope_psi:
580        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
581      * gmredi_slope_limit
582        re-activated full calculation of taperfct for case 'ac02'
583    o updating verification/ adjoints of carbon, global_ocean.90x40x15
584    
585    checkpoint47i_post
586    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
587    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
588      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
589    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
590    o gmredi: fix few bugs.
591    
592    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
593    This will be a good checkpoint to plug into the ecco-branch.
594    o few modif.'s to get latest version adjointed
595      (mainly kick out code in ini_linear_phisurf)
596    o modif's to run adjoint with exactConserv
597    o case GM_BOLUS_ADVEC should be cleaned
598      S/R gmredi_slope_psi should be cleaned
599    o verification/carbon now has exactConserv=.TRUE.
600    
601    checkpoint47g_post
602    o time-average AIM output: becomes independent from statvars time-average
603      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
604    o After TAF bug fix:
605      Tested adjoint of gmredi package.
606      Tests were done with checkpoint47 rather than with latest
607      checkpoint47f_post since the latter is broken for the adjoint
608      verification/carbon/ contains both ADM and TLM gradient checks.
609    Here they are, before they get changed/lost/stolen.
610    Mostly modif.'s to fix numerical sensitivities.
611    Gradient checks OK for
612    - GM_taper_scheme:
613      * clipping
614      * ac02
615      * linear
616      * glw91
617      * dm95
618      * ldd97
619    - GMREDI_OPTIONS:
620      * GM_VISBECK_VARIABLE_K
621      * GM_NON_UNITY_DIAGONAL
622      * GM_EXTRA_DIAGONAL
623      * GM_BOLUS_ADVEC
624    in conjunction with data.gmredi parameters to be checked in
625    in a few minutes under verification/carbon/code/
626    
627    checkpoint47f_post
628    Merging from release1_p10:
629    o modifications for using pkg/exf with pkg/seaice
630      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
631        and SEAICE_EXTERNAL_FLUXES
632      - pkg/exf CPP options EXF_READ_EVAP and
633        EXF_NO_BULK_COMPUTATIONS
634      - usage examples are Experiments 8 and 9 in
635        verification/lab_sea/README
636      - verification/lab_sea default experiment now uses
637        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
638    
639    checkpoint47e_post
640    o created a tag prior to creating a branch
641    
642    checkpoint47d_post
643    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
644      at the bottom boundary had an erroneous half slip boundary condition
645    o added bottom drag and no slip boundary condition capabilities to
646      oceanic pressure coordinates code
647    o added new verification experiment global_ocean_pressure, this experiment is
648      also described in the tutorial section of the manual
649    checkpoint47d_pre
650    
651    checkpoint47c_post
652    o Added a verification experiment for a global cubed-sphere ocean run
653      -  verification/global_ocean.cubed32x32x30
654      -  uses pkg/therm_seaice and pkg/bulk_forcing
655    
656    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
657    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
658      when using P-coordinate; only implemented for atmospheric config.
659    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
660      NOTES: requires option NONLIN_FRSURF to be "#define".
661    o update advect_xz/results/output.txt (left from checkpoint44g_post)
662    
663    checkpoint47b_post
664    Merging from release1_p9:
665    o pkg/seaice
666      - removed GOTO's and added taf directives
667      - double precision constants to reduce the g77 (Linux)
668        to F77 (SGI) differences reported in release1_p8
669    o tools/genmake
670      - added SGI options
671    o verification/testscript
672      - updated to that of checkpoint47a_post
673    o verification/global_ocean.90x40x15/input/eedata
674      - modified for SGI f77 compatibility
675    o verification/lab_sea
676      - added description of sea-ice model
677      - added missing matlab routines
678      - added test of thermodynamics parallelization
679    
680    checkpoint47a_post
681    o new pkg: aim_v23
682     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
683       for now, keep the same surface forcing as before.
684     - Part-Cell implemented into AIM; check that Heat & Water are conserved
685     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
686     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
687    o add diagnostic of surface correction term in monitor output
688    
689    o bulk_force and therm_seaice
690    - Two packages:  bulk_force (Bulk forcing)
691      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
692    - Earlier integration from Stephaine Dutkiewicz
693      and Patrick Heimbach.
694    - Two ifdef statements for compile time,
695       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
696    
697    checkpoint47
698    differentiable version of checkpoint46n_post
699    o bug fix in quasihydrostaticterms
700    o * "clean" adjoint code (in terms of extensive recomputations)
701        can now be obtained for all GMREDI options (i.e. for
702        - GM_VISBECK_VARIABLE_K
703        - GM_NON_UNITY_DIAGONAL
704        - GM_EXTRA_DIAGONAL
705        - GM_BOLUS_ADVEC )
706      * However, wrong gradient check problem remains unsolved.
707      * New CPP options have been introduced for different
708        tapering schemes
709    o external_fields_load now part of differentiation list
710    o pressure needs multiple storing;
711      would be nice to have store_pressure at beginning or
712      end of forward_step, e.g. by having phiHyd global (5-dim.)
713      (NB: pressure is needed for certain cases in find_rho,
714      which is also invoked through convective_adjustment).
715    o recomputations in find_rho for cases
716     'JMD95'/'UNESCO' or 'MDJWF' are OK.
717    o #define ATMOSPHERIC_LOADING should be differentiable
718    o ini_forcing shifted to begining of initialise_varia
719    o Incorporating QNVS line search routines into MITgcm
720      (this is separate code, and therefore not under pkg)
721      lsopt/, optim/
722    o Updated verification/carbon/
723      - #define GM_VISBECK_VARIABLE_K
724      - GM_taper_scheme    = 'ldd97'    
725    
726    checkpoint46n_post
727    Merging from release1_p8:
728    o verification/natl_box:
729      updating new external_fields_load routine
730    o New package: pkg/seaice
731      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
732      The sea-ice code is based on Hibler (1979-1980).
733      Two sea-ice dynamic solvers, ADI and LSR, are included.
734      In addition to computing prognostic sea-ice variables and diagnosing
735      the forcing/external data fields that drive the ocean model,
736      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
737      The implied surface heat flux is then stored in variable
738      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
739      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
740      non-local transport term.  Because this call precedes model
741      thermodynamics, temperature under sea-ice may not be "exactly" at
742      the freezing point by the time theta is dumped or time-averaged.
743      N.B.: fairly large differences in accuracy occur across
744            different platforms/compilers; comparison between
745            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
746            generated output gives:
747       T           S           U           V
748      C D M    c        m  s        m  s        m  s        m  s
749      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
750      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
751      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
752    
753      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
754    o GAD:
755      - generated new common blocks to account for call of
756        same gad routines with differing traceridentities
757        (needed to modify tracerIdentity indices in GAD.h)
758      - generated separate common blocks for case useCubedSphereExchange
759        (Department of Futurology)
760      - parameter lists to gmredi_?transport: added tracerIdentity
761      - added new key indices to tamc.h
762    o external_fields_load:
763      - added this routine to TAF list
764      - needed to make some common blocks global and additional storing
765        along the same lines as exf package (checkpoint_lev?_directives.h)
766    o exf:
767      updated external forcing package
768      - bug fixes carried over from ecco-branch
769        (missing OBCS_OPTIONS.h in two routines)
770      - enable easy to use "no forcing".
771      - added exf I/O for atmospheric loading
772      - added exf I/O for runoff data
773      - transfered scaling between exf <-> MITgcm to exf namelist
774    o Adding new verification experiment global_with_exf.
775      This verification experiment is almost identical to the
776      global_ocean.90x40x15 experiment, except that it uses
777      the exf (and cal) package instead of the
778      external_fields_load routine (cf README file).
779    
780    checkpoint46m_post
781    o modified testscript to return -- when there are no lines of "%MON" output
782    o added new flag "quasiHydrostatic" for QH mode
783      and new routine quasihydrostaticterms()
784    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
785      New routine: mom_u_coriolis_nh()
786    o fixed sign of non-hydrostatic metric terms in u and v equations.
787      Depend on correct sign of gravitySign.
788    o added work.pc* to .cvsignore in aim directories using ifc
789    o introduced flag for controllin non-hydrostatic metric terms
790    o removed gravitySign from PARM04
791    o switched to g77/ifc from pgf77 in aim experiments
792    
793    checkpoint46l_post
794    o made convective adjustment work with pressure coordinates:
795     - changed the direction of k-loop in convective_adjustment.F for the
796       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
797     - adjusted the reference pressure k-index in convective_adjustment.F
798     - adjusted the convection condition in convect.F (in analogy to
799       calc_ivdc.F)
800     - convective_adjustment no longer computes anything on the halos
801     - removed the warnings about negative salinity from find_rho.F and
802       find_alpha.F; instead the new routine look_for_neg_salinity, called
803       at the beginning of find_rho, find_alpha, and find_beta, does a
804       check of the entire slice, if CPP-option
805       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
806    checkpoint46l_pre
807    
808    checkpoint46k_post
809    o fixed the verification/global_ocean.90x40x15 experiment:
810     - new bathymetry (the world according to A., JMC, and M.)
811     - new initial fields and forcing fields (*.bin files)
812     - new POLY3.COEFFS (for the next release one should switch to a full
813       equation of state: JMD95P or MDJWF)
814     - fixed several errors and redundancies in the data file
815     - experiment uses looped cells
816     - added matlab directory with diagnostic scripts for plotting of output
817    
818    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
819     - read AIM physics parameters from a file (data.aimphys)
820     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
821    
822    checkpoint46j_post
823    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
824    o move wVel computation at the end of the time step, in S/R integr_continuity
825    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
826    o update timeave pkg for wVel diagnostic.
827    checkpoint46j_pre
828    
829    checkpoint46i_post
830    o Clean up AIM package (and keep the results unchanged):
831      include CPP_OPTION and use IMPLICT NONE in all routines ;
832      declare all the variables _RL ; use _d 0 for all numerical constants.
833      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
834    
835    checkpoint46h_post
836    o cleaned up the use of rhoNil and rhoConst.
837      - rhoNil should only appear in the LINEAR equation of state, everywhere
838        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
839        and the dynamical equations are all divided by rhoConst
840    o introduced new parameter rhoConstFresh, a reference density of fresh
841      water, to remove the fresh water flux's dependence on rhoNil. The default
842      value is 999.8 kg/m^3
843    o cleanup up external_forcing.F and external_forcing_surf.F
844      - can now be used by both OCEANIC and OCEANICP
845    checkpoint46h_pre
846    
847     Added code to convert surface volume flux (fresh water) into
848     a mass flux when using P coordinates in the ocean (OCEANICP).
849     Note: It assumes you have set rho0=rhoConst=density of fresh water.
850    
851    checkpoint46g_post
852    o Include a new diagnostic variable phiHydLow for the ocean model
853      - in z-coordinates, it is the bottom pressure anomaly
854      - in p-coordinates, it is the sea surface elevation
855      - in both cases, these variable have global drift, reflecting the mass
856        drift in z-coordinates and the volume drift in p-coordinates
857      - included time averaging for phiHydLow, be aware of the drift!
858    o depth-dependent computation of Bo_surf for pressure coordinates
859      in the ocean (buoyancyRelation='OCEANICP')
860      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
861        Theta, Salinity, and Pressure in the parameter list. This routine is
862        presently contained in find_rho.F. This routine does not give the
863        correct density for 'POLY3', which would be a z-dependent reference
864        density.
865    o cleaned up find_rho
866      - removed obsolete 'eqn' from the parameter list.
867    o added two new verification experiments: gop and goz
868      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
869    checkpoint46g_pre
870    
871    checkpoint46f_post
872    o Enable tangent linear (forward mode) gradient checks:
873      - extended active file handling to g_... files
874      - added TANGENT_SIMULATION to theSimulationMode
875      - extended grdchk package accordingly
876    o added tangent linear setup in verification/carbon/code_ftl
877    o added adjoint setup in verification/front_relax/code_ad
878    
879    checkpoint46e_post
880    o Added new equation of state -> MDJWF
881      - EOS of McDougall et al., 2002, JAOT, submitted
882      - caveat: the equation of state is only valid for a smaller (more
883        realistic?) range of values than JMD95P/Z and UNESCO
884      - added masks to the calculation of pressure in store_pressure
885      - added more check values for density in check_eos (ini_eos.F), some of
886        the old check values are out of the range of the MDJWF-eos, so don't
887        expect perfect matches for those
888    checkpoint46e_pre
889    
890    checkpoint46d_post
891    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
892      'OCEANICP', also initialised field pressure correctly in ini_eos in the
893      case of pressure coordinates. eosType='JMD95Z' in
894      combination with buoyancyRelation='OCEANICP' now causes an error.
895    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
896      in find_alpha/beta.
897    checkpoint46d_pre
898    
899    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
900      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
901    
902    checkpoint46c_post
903    o Changes necessary for ocean in p-coordinates
904     -  Added new buoyancy relation = 'OCEANICP'
905     -  Added new parameters = gravitySign (this used to be contained inside
906        the factor dRdZ which I added when we first switched to R coordinates).
907     X GM/Redi is not compatible (yet)
908     X bottom drag and no-slip need to be debugged.
909    checkpoint46c_pre
910    
911    checkpoint46b_post
912    o Added new equation of state -> JMD95Z and JMD95P
913      - EOS of Jackett and McDougall, 1995, JAOT
914      - moved all EOS parameters into EOS.h
915      - new routines ini_eos.F, store_pressure.F
916    o Added UNESCO EOS, but not recommended because it requires
917      in-situ temperature (see JMD95)
918    o Modified formatting for knudsen2.f in utils/knudsen2 and added
919      unesco.f to be used with POLY3
920    checkpoint46b_pre
921    
922    checkpoint46a_post
923    o Added (atmospheric) pressure loading
924      - new field in FFIELDS.h, etc...
925      - new cpp flag ATMOSPHERIC_LOADING
926    o Changed hFacC to _hFacC in calc_phi_hyd.F
927    o Added SHORTWAVE_HEATING to some files for consistency
928    checkpoint46a_pre
929    
930    checkpoint46
931    further merges from release1_p5
932    o new ctrl package
933      - adopted from ECCO environment to enable optimization
934      - added Eliassen Palm fluxes to controls
935    o added Eliassen Palm flux controls to gradient check package
936    o cost package
937      - Compatible with new ctrl package
938      - added Eliassen Palm cost hooks
939      - modif's of existing cost functions
940    o Adjoint-related bug fixes in kpp:
941      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
942      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
943    o autodiff package
944      - flow directives:
945        + new for S/R do_the_model_io
946        + enhanced for S/R checkpoint
947        + new gmredi.flow
948      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
949        disable adcommon.h/g_common.h by default.
950      - fixed problem for adjoint of global_max
951    o modified verification/carbon/
952    o New setup for adjoint of global_ocean
953    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
954    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
955    o incorporated hooks for sponge layer code (external_forcing.F)
956    
957    checkpoint45d_post
958    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
959    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
960      (affects plume_on_slope "cg2d" output)
961    o add new parameter deltaTfreesurf for free-surface time stepping
962    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
963    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
964    o change phiMin in exp1 (to agree with documentation)
965    o add new flags:
966     - T,S forcing inside/outside Adams-Bashforth
967     - turn off temp,salt advection and/or forcing
968     - for each tracer, define internal flag for multiDimAdvection & A-B
969    o monitor: change definition of KE to check conservation of Energy
970    
971    checkpoint45c_post
972    o Removed f90 comments ("!")
973    o Modified initialisations to enable exf package for MITgcm
974      (without invoking ECCO_PACKAGE).
975    o modifications to gradient check package (Martin Losch)
976      - enable centered differences
977      - modified format of standard output
978    
979    checkpoint45b_post
980    o cleaned exchange calls in cg2d
981    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
982    o included CPP option SINGLE_LAYER_MODE in thermodynamics
983      to configure barotropic setup (Martin Losch)
984    o moved some initialisations within bi,bj loop in dynamics
985      (TAF flow dependency)
986    o in initialise_varia, moved call packages_init_variables
987      before convective_adjustment_init
988      (corresponding adjustment of TAF tape initialisation).
989    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
990    
991    checkpoint45a_post
992    o compute Rho over the whole domain (extend iMin,jMin indices)
993    o specific exchange for X-slice domain (case Ny=1)
994    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
995    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
996    
997    checkpoint44h_post = checkpoint45
998    o Fix to restore differentiability:
999      place at which packages_init_variables is called in
1000      initialise_varia is crucial for reverse control flow.
1001    o modifications in GMRedi to enable stable adjoint
1002      (corresponding modif's in thermodynamics, dynamics)
1003    o added missing hook for sponge layer code in external_forcing
1004    o modified test cost functions
1005    o storing in gad_advection (plus removal of write(0,*)!
1006    o missing headers TR1.h added in convective_adjustment routines
1007    o errorMessageUnit set non-equal zero in eeboot
1008      (conflict on some platforms, e.g. IBM SP3)
1009    o modified carbon verif.
1010    
1011    checkpoint44h_pre
1012    o vertical grid option: allow to put the Interface at the middle between
1013      2 cell-centers ; replace delZ in pkg/kpp by drF.
1014    o GM Advective form: Tracers are advected using the residual transport (=
1015      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1016    
1017    checkpoint44g_post
1018    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1019      results) ; ifdef missing in thermodynamics.F
1020    
1021    checkpoint44f_pre,checkpoint44f_post
1022    o added PTRACERS package
1023      This allows an arbitrary number of passive tracers to be integrated
1024      forward simultaneously with the dynamicaly model.
1025      + Implemented so far:
1026        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1027        - I/O and checkpointing
1028        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1029      + Not implemented so far:
1030        - KPP
1031        - OBCS
1032      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1033        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1034        line in data.pkg.
1035      + This package is disabled by default since it increases storage.
1036    
1037    
1038    o testscript: added -cleanup option
1039    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1040                 b) enable to filter 2D fields.
1041    
1042    checkpoint44e_pre,post
1043    o re-wrote convective adjustment to use pre-calculated weights
1044      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1045      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1046      Original calls to convect() still in place.
1047    
1048    chkpt44d_pre,post
1049    o added missing EXCLUDE_MONITOR flags
1050    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1051      (incompatible typ in MIN/MAX expressions caused problems
1052      on IBM SP3)
1053    o in genmake added variable MAKEDEPEND
1054      plus resetting for case SunOS
1055    o added timer_stats.c routine for IBM SP3
1056    o removed variables in dynamics
1057    !!! I forgot to create tag chkpt44d_pre !!!
1058    !!! But chkpt44d_pre = chkpt44c_post    !!!
1059    
1060    o real fresh water flux implemented with non-linear free-surface.
1061    
1062    chkpt44c_pre,post
1063    o few fix (mask in shap_s2, EmPmR in external_field_load,
1064      USE_NATURAL_BCS in solve_for_P);
1065    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1066    
1067    checkpoint44b_pre/_post
1068    o merge of relevant stuff from the ecco-branch:
1069      - genmake: removed $S64 overwrite for case SunOS
1070      - pkg/exf: update and corrections for field swapping and obcs
1071      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1072                  harmonized between ECCO and MITgcm
1073      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1074                      updated checkpointing_lev... lists for obcs
1075      - model/src: minor changes in forward_step, plot_field
1076                   added directive for divided adjoint in the_main_loop
1077      - pkg/mdsio: added mdsio_gl_slice
1078    
1079    o check parameters & config (chkpt44a_pre,post)
1080    o OBC and NonLin_FrSurf.
1081    
1082    checkpoint44
1083    o fix bug in mom_vi_del2uv
1084    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1085    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1086    o update AIM experiments (NCEP input files)
1087    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1088    o added some stuff for AD
1089    
1090    checkpoint43
1091    o added two new advection tests
1092    o added global 4x4 degree ocean test
1093    o added test of H&S94 with free surface on cube
1094    o some final mods for gradient check, adjoint,...
1095    
1096    checkpoint42
1097      Fixed AD-related problems:
1098    o Store directives up-to-date with re-arranged Adams-Bashforth
1099      (mainly thermodynamics.F)
1100    o New store directives for multi-dim. advection schemes
1101      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1102      * new common block and key passkey
1103      (mainly gad_advection.F)
1104    o Modified store directives for split of dynamics/thermodynamics
1105      for the case ALLOW_KPP
1106    o Cleaned argument list for timestep_tracer.F
1107    
1108    checkpoint41
1109    o re-formatted/added comments in prologues of key subroutines
1110      to work with protex
1111    
1112    checkpoint40
1113    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1114    o added FLT (floats) package from Arne along with demo. experiment
1115    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1116      implementation of forward-in-time forcing terms
1117    o more mods for non-linear free-surface including new variable
1118    o modified multi-dim method to work on cube
1119    o bug fix in KPP (from DM)
1120    
1121    checkpoint40pre9
1122    o added DST advection schemes
1123    o fix MPI bug on SGI's
1124    o modifications for non-linear free-surface
1125    o fixed conditionals for fixed flow/passive tracer only mode
1126    o added tension/strain form of stress tensor
1127    o changes to commenting of arguments for TAF/TAMC
1128    o added/updated many matlab scripts
1129    o added multi-dimensional advection method for tracers
1130      
1131    checkpoint40pre8
1132    o new package rw/
1133      Added method for dumping intermediate local arrays:
1134      mdsio_writetile - same as mdsio_writefield except works from inside
1135                        bi,bj loop
1136      mdsio_writelocal - same as mdsio_writetile except works for local
1137                         arrays
1138      write_local_r? - higher-level wrapper for mdsio_writelocal
1139      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1140      Example given at end of mom_vecinv.F that dumps some local arrays.
1141    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1142      control flux-form versus vector invariant code.
1143      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1144      or genmake -DISABLE ...
1145    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1146      (additional storing is now needed for case vecinv;
1147      currently nothing implemented to switch this storing off
1148      in case fluxform is used since no CPP flag available).
1149    
1150    checkpoint40pre7
1151    o bug fix in dynamics.F
1152      calc_viscosity called before k=1,Nr loop.
1153    o added some #ifdef's ALLOW_PASSIVE_TRACER
1154    o cleaned initialisations in ctrl_map_ini
1155      related to TAF
1156    
1157    checkpoint40pre6
1158    o split dynamics into thermodynamics & dynamics
1159    o corresponding split of calc_diffusivity into
1160      calc_diffusivity, calc_viscosity
1161      (kpp_calc_diff, kpp_calc_visc).
1162    o Added diffkr, kapgm to control variables
1163    o bug fix in gmredi_slope_limit for ldd97
1164    
1165    checkpoint40pre5
1166    o proper initialization of Adams-Bashforth time stepping
1167      + uses forward step for very first step of model (iter=0)
1168    o re-generated *all* output since almost all output is modified by this
1169      change (sorry but we've been putting this one off for about 2 years)
1170      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1171        *not* regenerated since they are already out of date and I don't
1172        want to create the impression that they are suddenly working.
1173    o removed KAP stuff for DEC's
1174    o modified/added many .cvsignore files in */code and */input
1175    o added new expt "solid-body.cs-32x32x1"
1176      + this uses an alternative form of ini_curvilinear_grid.F which
1177        is not necessarily any better than the current one...
1178    
1179    checkpoint40pre4
1180    o added re-initialisations of utrans,vtrans,rtrans in
1181      calc_common_factors which are crucial for TAF.
1182    o extended iMin,jMin range for calc_common_factors,
1183      calc_diffusivity
1184    o added option ALLOW_PASSIVE_TRACER
1185    o a few minor updates and fixes
1186    
1187    checkpoint40pre3
1188    o created calc_gtr1.F for gad package
1189    o split the_main_loop and re-introduced forward_step
1190    o some recomputations of nIter0 for TAMC
1191    
1192    checkpoint40pre2
1193    o Updated to latest branch of AJA, JMC
1194    o Added gradient check package
1195    o Added routines for passive tracer handling
1196    o Added carbon sequestration sensitivity experiment
1197    
1198    checkpoint39
1199     o Modifications and fixes to support TAMC
1200       (mainly missing or wrong directives)
1201     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1202       in addummy_in_stepping
1203     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1204     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1205     o Included following packages:
1206       cal: calendar
1207       exf: external forcing
1208       ecco: essential routines to control use of cal, exf
1209             (NB: this is not the full ECCO environment)
1210     o disabled some packages by default in genmake
1211    
1212    checkpoint38
1213     o see notes_c37_adj.txt
1214     o corrected wrong layer index in external_forcing_t
1215     o replaced the_main_loop/forward_step by the_main_loop
1216     o removed forceoutput from write_state
1217       (replaced criteria for initial/final state)
1218     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1219    
1220    checkpoint37
1221     o mdsio.F routine split and packaged in pkg/mdsio
1222       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1223        used unless genmake -disable=mdsio)
1224     o allow a more precise surface-geopotential gradient for the atmosphere
1225       taking into account the change in space of Alpha (=1/rho) at the surface.
1226     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1227       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1228     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1229       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1230       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1231     o Time-Average diagnostics defined as a pseudo package "timeave".
1232     o pickup files : old pickup (before c35) did not work with new code (c35
1233       and after) unless activating 2 commented lines in initialise-varia.
1234     o Non-Hydrostatic pickup file Pb fixed.
1235     o bug with Rigid-lid version (since c35) fixed.  
1236    
1237    checkpoint36
1238     o implement Crank-Nickelson barotropic time-stepping
1239     o recover Time-Average diagnostics
1240     o fix Pb in checkpoint (PR#19)
1241     o AIM become a standard package ; clean unused CPP_kees
1242    
1243    checkpoint35
1244     o subtantial rewrite of dynamics.f
1245     o allows staggered time-stepping
1246     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1247     o added bottom drag (linear + quadratic)
1248    
1249    checkpoint34
1250     o Modified exchange routines for correct reverse simulation.
1251     o Added verification output to comply with bug fix in impldiff.F
1252       as of c33 (exp2, natl_box).
1253     o Corrected store directives in dynamics.F
1254     o Corrected array boundaries in impldiff.F
1255     o Corrected array dimensions in gmredi.
1256       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1257     o Added routine GLOBAL_SUM_INT to global_sum.F
1258     o Added mdsio_gl.F for ECCO purposes.
1259    
1260    checkpoint33
1261     o Fixed bug in lower BC in impldiff.F
1262     o Fixed confusion about units of forcing arrays in FFIELDS.h
1263       namely Fu,Fv,Qnet,Qsw,EmPmR:
1264       - Removed verification/natl_box/code/external_fields_scale.F
1265         (did not differ from that in model/src)
1266       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1267         (see FFIELDS.h for description)
1268       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1269         kpp_calc.F and kpp_transport_t.F
1270       - Removed model/src/external_fields_scale.F and calls to it
1271       - verification/natl_box uses flux data with "atmospheric" sign so
1272         a special version of external_fields_load.F is used to
1273         change the data as it's read in. This way, the arrays
1274         have the right units and signs at all times tha a user could
1275         possibly use them.
1276     o Corrected genmake to delete a temporary file during configuration
1277    
1278    checkpoint32
1279     o Scaling of forcing fields moved from external_forcing.F to
1280       external_fields_scale.F, called directly after loading fields.
1281     o Surface relaxation terms added to surface tendency fields in
1282       extra subroutine.
1283     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1284       fields.
1285     o Changes in GMRedi to comply with packaging structure.
1286     o Modifications and bug fixes in KPP package.
1287     o Verification experiment for KPP added (verification/nat_box/)
1288    
1289    checkpoint31
1290     o Packages interface brought in line with defined standard
1291       -> new routines packages_...F
1292       -> changes in initialise_fixed.F, initialise_varia.F
1293       -> enables initialisation interface for ECCO package
1294     o Rescaling of external forcing fields immediately after read
1295       (removed from external_forcing.F)
1296       -> new: surface_fields_scale.F
1297       -> affects ini_foorcing.F, external_fields_load.F
1298     o Computation of surface tendencies before tendency updates.
1299       -> new: external_forcing_surf.F
1300     o Change of variable names useGMRedi, useKPP, useECCO
1301     o Further changes in dynamics.F, impldiff.F for TAMC
1302     o Tested for experiments 0, 2, 4.
1303       - not yet tested for GMRedi.
1304       - not yet tested for KPP.
1305    
1306    checkpoint30
1307     o Updates for OBCs
1308     o New experiment for test OBCs (internal_wave)
1309     o New output.txt in verification/exp4/results/
1310     o Updates for KPP: calculation of viscosity corrected, new variables
1311       kpp_dumpFreq and kpp_taveFreq
1312     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1313       and entry for T90 in genmake
1314    
1315    checkpoint29
1316     o packaged KPP and GM/Redi
1317    
1318    checkpoint28
1319     o Corrected initialization of hFacMin for difference vertical coordinates
1320     o Modified calculation of partial cell thickness to more robust algorithm
1321     o config_summary.F: replaced write_1D_... by write_0D_...
1322       read_write.F: added subroutines write_0D_...
1323     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1324       included some initialisations required for TAMC.
1325     o routine calc_isoslopes: modified sqrt computation to make it
1326       differentiable for zero argument.
1327     o routines dynamics, impldiff:
1328       included store directives and tape key computations required for TAMC.
1329     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1330    
1331    checkpoint27
1332     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1333       formulation works properly with variable resolution.
1334     o restructured the calling tree between the_model_main() and dynamics()
1335     o split initialise() into initialise_fixed() and initialise_varia()
1336     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1337       in new routine ini_psurf()
1338    
1339    checkpoint26
1340     o moved some #ifdef in optional routines to encompass everything
1341       except the argument declarations. This was using up some memory.
1342     o fixed macros like _ADT to work with both versions of Linux cpp
1343     o cleaned up some unused and uninitialized variables
1344       (helps when debugging with strict compile options)
1345     o split up CPP_EEOPTIONS.h into options and macros
1346       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1347     o patch for 2 processor JAM mode
1348    
1349    checkpoint25
1350     o updates for OBCs and NH
1351     o dramatically reduced memory usage
1352     o added "JAM" routines for use on Artic network
1353     o parameterization of convection by implicit vertical diffusion
1354     o added a diagnostic of convective index
1355     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1356       (this is was partly for OBCs and NH but also in anticipation of
1357        an explicit free-surface option)
1358     o initial state input files for U and V
1359    
1360    checkpoint24
1361     o Removed some spurious "REAL"s
1362     o Updated KPP to latest version from JPL
1363     o Added a COS(latitude) in horizontal viscosity
1364    
1365    checkpoint23
1366     o Added del^4 diffusion for salt and temperature
1367     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1368    
1369    checkpoint22
1370     o Made many small changes: implicit none, format(i5), etc...
1371     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1372    
1373    checkpoint21
1374     o Introduced new I/O package that supports direct-access records (mdsio.F)
1375     o Split-up mid-level I/O routines
1376     o Updated input data for experiments 0,1,2,4 and 5
1377     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1378    
1379    checkpoint20
1380     o Tidied up open-boundaries some more
1381     o Added non-hydrostatic code
1382     o Fixed some input data
1383     o Modified MPI start-up to work in "coupled" context.
1384    
1385    checkpoint19
1386     o Tidied up directory structure for verification experiments.
1387     o Added new code for open boundaries.
1388     o Corrected advective terms near boundaries.
1389     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1390     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1391     o Split default parameters out of ini_parms.F into set_defaults.F.
1392    
1393    checkpoint18
1394     o Further changes for optional code generation with
1395       CPP - ugh!
1396    
1397    checkpoint17
1398     o Beginning to incorporating modularity
1399       for supporting atmos. and ocean configs.
1400     o Small changes for TAMC complinace
1401     o New ultra simple test case. Barotropic box
1402       configuration "exp0".
1403    
1404    checkpoint16
1405     o Minor changes to exchange routines to support
1406       accumulation in reverse mode. Adjoint of an
1407       assignment is an addition.
1408     o Changes to support compilation by TAMC (LR(1)
1409       syntax) and by g77 under Linux ( 72 character
1410       limit ).
1411    
1412    checkpoint15
1413     Rewrote exchange routines to allow
1414     o General tile <-> tile connectivity.
1415     o TAMC reverse mode flag ( is this really needed? )
1416     o Variable width overlap and exchange region widths.
1417     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1418       shmput/shmget, VIA, SYSV shmem and every other cool
1419       communication method.
1420    
1421  checkpoint14  checkpoint14
1422   Consistent isomorphism chages made. These allow dynamical core   Consistent isomorphism chages made. These allow dynamical core
1423   to support both pressure and meters as a vertical coordinate.   to support both pressure and meters as a vertical coordinate.

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