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revision 1.13 by cnh, Wed Sep 9 15:24:19 1998 UTC revision 1.233 by jmc, Fri Jan 2 23:59:36 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint52e_pre
7    
8    o fix bug in impldiff when Nr=1 or Nr=2.
9    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
10    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
11    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
12      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
13    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
14    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
15    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
16    
17    checkpoint52d_post
18    o re-tiled many expts to allow comparison in multi-processor mode
19      - updated output accordingly
20      - changed hs94.128x64x5 to use intial T from file rather than use the
21        random number generator
22    o add infrastructure in model routines for fizhi and gridalt packages
23    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
24    o changes to permit hi-res, cubed-sphere, configuration
25      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
26      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
27      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
28        of surface winds for the cube
29      (A verification experiment, based on global_ocean.cs32x15, but with
30       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
31       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
32       complete with example surface forcing files and matlab scripts to look
33       at the output and compare it with that of global_ocean.cs32x15.)
34    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
35       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
36       to conform to the common rule.
37    o check-in the first version of the coupler + interfaces for multi-components
38       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
39       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
40       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
41       - ocean and atmos. share the same horizontal grid (no interpolation).
42       - exchanges between component and coupler is done in forward_step
43    o new verification experiment, cpl_aim+ocn:
44       coupled ocean - AIM atmosphere on cs32 grid.
45    
46    checkpoint52d_pre
47    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
48    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
49    
50    checkpoint52c_post
51    o Fixing OPTIONS files for use of exf:
52      - ALLOW_ECCO not needed
53      - ECCO_CPPOPTIONS.h should not be included from
54        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
55        as has been the case in the past
56      - All cal/exf related options are currently set in
57        single header file. Should remain so until we
58        agree on a consistent new policy.
59    o Removed all CPP options for cal package.
60      cal has no more CPP options.
61    o modified STOREs in GAD_ADVECTION
62    o corrected key comp. for passkey
63    
64    checkpoint52b_post
65    o new version: "thsice" of thermodynamic sea-ice pkg:
66     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
67     - modify fluxes but do not change theta directly;
68     - light cleaning of bulk_force pkg (still needed with thsice).
69     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
70       + output_thsice.txt to test thsice & bulk_force pkgs.
71    o put back grid & coriolis monitor output.
72    checkpoint52b_pre
73    
74    o call "do_the_model_io" at the beginning (=> dump initial state)
75    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
76    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
77      (need info on NUMBER_OF_PTRACERS)
78    o missing PTRACERS headers in some routines
79    o default tamc.h in pkg/autodiff supposed to crash
80      to ensure proper customization
81    
82    checkpoint52a_post
83    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
84      - moved surfaceTendencyTice from pkg/seaice to main code
85      - subroutine FREEZE_SURFACE now limits only surface temperature
86        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
87        => new output.txt for global_ocean.cs32x15 & global_with_exf
88      - keep the old version of FREEZE for backward compatibility;
89        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
90      - corresponding modifs for TAF directives
91    o added surface flux output variables to TIMEAVE_STATVARS
92    o time-averaged output for pkg/ptracers
93    o fix problem with ECCO-related divided adjoint
94      snapshot file was missing some ad-variables,
95      but no warning issued by TAF
96    
97    checkpoint52a_pre
98    o some bug fixes for #undef REAL4_IS_SLOW
99    
100    checkpoint52 = ecco_c52_e35
101    o after testing adjoints of checkpoint51u_post
102    
103    checkpoint51u_post
104    o this is the post-merge tag of the ecco-branch
105      (needs another clean checkout and re-testing)
106    o various natl_box_adjoint configs and results
107      but no input fields
108    o obcs adjoint not yet merged!
109    o adding ECCO global 1x1 and 2x2 degree configs
110    o updated/extended some store directives for seaice
111    o pkg/ecco now containes ecco-specific part of cost function
112    o top level routines the_main_loop, forward_step
113      supersede those in model/src/
114      previous input data.cost now in data.ecco
115      (new namelist ecco_cost_nml)
116    o in ctrl/ cleaned some cross-dependencies and updated CPP options
117    
118    checkpoint51t_post
119    o this is the pre-merge tag of the ecco-branch
120    
121    checkpoint51s_post
122    o cleanup: removed various obsolete #define-s
123    o pkg/grdchk
124      - renamed 'ph-grd 3' to 'grad-res'
125      - merged from ecco-branch
126        (remaining bug fixes for obcs gradient checks)
127      - additional high-precision output for testreport
128        (grep for 'precision_grdchk_result')
129    
130    checkpoint51r_post
131    o cleaned up or removed CPP_OPTIONS.h files
132    o updated results for some of the tests to reflect the new
133      optfiles (-ieee: -O0 instead of -O3)
134    
135    checkpoint51q_post
136    o cd_code:
137      - moved cd_scheme.F -> cd_code_scheme.F
138      - separate read_checkpoint from cd_code_ini_vars.F
139      - separated cd_code part from write_checkpoint
140      - updated AD_SOURCE, generated .flow
141      - added CD_CODE_VARS.h to the_main_loop
142      - Moving cd_code specific store dir.s to pkg/cd_code
143    o ctrl package totally restructured
144      - pack/unpack now optional and decoupled from
145        xx_/adxx_ I/O
146      - ctrl_pack/unpack cleaned
147        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
148      - confined inclusion of AD_CONFIG.h to where necessary.
149    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
150    
151    checkpoint51p_post
152    o create initial cd_code package
153      - WARNING: the initialization of fields within packages
154        is broken because INI_FIELDS (where READ_CHECKPOINT is
155        called) is called *before* PACKAGES_INIT_VARIABLES.
156        This seems to be backwards since
157        1) its important to initially zero the entire field including
158           the "halo" region
159        2) zeroing needs to be done *before* reading pickup info
160           and the pickup call might or might not happen in any
161           particular run
162      - this needs an overhaul for R2
163    o cleanup verification/*/code/GMREDI_OPTIONS.h
164    o cleanup testreport
165    
166    checkpoint51o_post
167    o bringing AD-related verif's up to date with genmake2
168      - carbon/
169      - global_ocean.90x40x15/
170      - hs.94.1x64x5/
171      - (front_relax/ )
172    o (more) consistent directory structure for AD-related verif.'s
173    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
174    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
175    o bug fix in find_alpha.F for MDJWF:
176      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
177        change rho -> rho-rhoConst
178      - replace call find_rho to find_rhonum
179    o initialisation of rFlx extended to full array (required by TAF)
180      and shifted to thermodynamics
181    o removed PTRACERS.h in ptracers routine
182    o added surfacetendencyPtr to S/R parameter list pracers_forcing
183    o Correcting initialisations for fVerU, fVerV.
184    o helping TAF to recognize dependency on kUp for
185      fVerU, fVerV
186    o Replacing delZ by delR in pkg/ctrl/
187    checkpoint51o_pre
188    
189    o undid all of cp51 pending some cleanups and discussion
190    o added the [#include "AD_CONFIG.h"] statement to all files that need
191       it for adjoint/tl #defines
192     o re-worked the build logic in genmake2 to support AD_CONFIG.h
193     o removed tools/genmake since it no longer works
194    
195    checkpoint51n_post
196    o modifications to make FREEZE flux visible to pkg/kpp
197      - moved surfaceTendencyTice from pkg/seaice to main code
198      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
199      - subroutine FREEZE now limits only surface temperature
200        (this means new output.txt for global_ocean.90x40x15,
201         global_ocean.cs32x15, and global_with_exf)
202    o added surface flux output variables to TIMEAVE_STATVARS
203    
204    checkpoint51n_pre
205    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
206    o added [#include "AD_CONFIG.h"] to all files that use the following
207      defines:
208      - ALLOW_ADJOINT_RUN
209      - ALLOW_TANGENTLINEAR_RUN
210      - ALLOW_ECCO_OPTIMIZATION
211    
212    checkpoint51m_post
213    o incorporating changes to get TAMC/TAF working in genmake2
214      - added new TAMC/TAF targets to the Makefile
215      - various cleanups related to package handling
216      - these changes should have no impact on the forward model
217    
218    checkpoint51l_post
219    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
220     - faster algorithm for cal_addtime.F
221     - higher precision arithmetic, where needed
222     - pkg/exf *startdate variables changed from calendar date to
223       model integration time
224    
225    checkpoint51l_pre
226    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
227    o enable to apply restoring on S & T only in a latitude band.
228    o update output (external_forcing_surf modif. change truncation errors)
229       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
230    
231    checkpoint51k_post
232    o change default to: useNHMTerms=.FALSE.
233     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
234       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
235     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
236        exp1, ideal_2D_oce
237     - change data file of oceanic exp (leave the results unchanged for now)
238       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
239    o set gravitySign automatically according to the vertical coordinate used
240      (and change sign: back to "logical" value: +1 when R increases downward)
241    o added an include barrier to the default CPP_OPTIONS.h and
242      removed the #include "PACKAGES_CONFIG.h" from it
243    o fix a bug in mom_fluxform (from chk51j_post)
244    
245    checkpoint51j_post
246    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
247    o adjusted some flow directives (dynamics, thermodynamics)
248    o added cubed-sphere case to test cost function
249    o heckpoint_lev?_directives.h now include
250      pkg-specific directives, whenever those are enabled.
251    o Moving pkg-specific flow directives to corresponding pkg
252      Moving pkg-specific differentiation list to corresponding pkg
253      Moving pkg-specific checkpoint-lev storing to corresponding pkg
254      ---> conventions are
255           - pkg_ad.flow
256           - pkg_ad_diff.list
257           - pkg_ad_check_lev?_dir.h
258    
259    checkpoint51i_post
260    o merge of the branch-genmake2
261      - knowingly breaks the older genmake
262      - automatic generation of all ALLOW_${PKG_NAME} defines
263      - new testreport supersedes older testscript
264    o large number of package inclusion and header cleanups
265    checkpoint51i_pre
266    
267    o new output for adjoin of global ocean vector invariant
268    o fix for checkpoint of thermodynamic seaice and bulk_force
269    o Steph gchem various cleanups
270    
271    checkpoint 51h_pre
272    o fixed some single quotes
273    o modify gchem pkg to be more versatile
274    o modifications to clean up dic pkg
275    o add pkg/cfc
276    
277    checkpoint51g_post
278    o provide links for ARPACK and ADM*TLM
279    o start removing verification/vero/
280    o update AD-related stuff
281      (in particular some IF-statements in model/src/ routines)
282    o adding to verification/global_ocean.90x40x15/ adjoint of
283      vector invariant setup
284    
285    checkpoint51f_post
286    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
287    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
288      of tracer Green's fucntions for ocean inversion project.
289    
290    checkpoint51f_pre
291    o Added on-the-fly spatial interpolation capability
292        "USE_EXF_INTERPOLATION" to pkg/exf.
293      - This is a temporary Cartesian-grid hack until
294        the super-duper ESMF coupler becomes available.
295      - See verification/global_with_exf/README for usage example.
296      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
297        flags and modified pkg/seaice accordingly.
298    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
299        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
300        non-local transport term.
301    
302    checkpoint51e_post
303    o pkg/mom_vecinv:
304      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
305      - add time-ave diagnostic of vorticity advection.
306    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
307    o atmospheric geopotential: - include water vapor effect;
308                                - use p^kappa in p* scaling.
309    o land pkg: read initial state from files.
310    o AIM : add stratospheric drag in the upper level
311    
312    checkpoint51d_post
313    o change function ILNBLNK (=> last non-blank char.) to return zero
314      (instead of the string length) when the string. char is empty
315    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
316    o modif's to restore TAMC compatibility
317      - avoid "_d" constructs in PARAMETER declarations
318      - avoid interrupting lines by comment lines
319    o Use cluster local disks for purely local I/O
320      vs. globally visible disks needed for ctrl stuff
321      (merged from ecco-branch)
322      - new active_file_loc... and mdsio_..._loc routines
323      - affected packages: autodiff, ctrl, grdchk, mdsio
324    
325    checkpoint51c_post
326    o introducing integer flag debugLevel
327      - debLevZero: suppress all output
328      - debLevA: standard
329      - debLevB: equivalent to current debugMode=.TRUE.
330    o introducing pathname variable mdsioLocalDir for mdsio
331      that can be specified at runtime
332      (relevant for cluster I/O to local disk)
333    `
334    >>>checkpoint51b_post
335    adjoint of ptracers
336    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
337    o extended state in checkpoint_lev?, etc.
338    o alternative ctrl/cost with tr1 or ptracer
339    o new comlev1_bibj_ptracers
340    o new ptracers.flow
341    o made ptracers_forcing same as external_forcing_s
342    o added verification for adjoint with ptracers
343      - adm. grdchk fail so far
344      - tlm. grdchk OK
345      - checked tapelev/comlev recomputations: OK
346    <<<checkpoint51b_pre
347    
348    checkpoint51a_post
349    o added code for biogeochemistry package
350      - new pkgs: dic, gchem
351      - new subroutine in ptracers
352    o modify code for biogeo packages
353      - in model/src and pkg/ptracers
354    
355    checkpoint51
356    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
357      - autodiff, ctrl, exf, grdchk, seaice
358      kept separate packages
359      - cost, ecco, obcs
360    o updating verification/internal_wave, verification/lab_sea
361      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
362    
363    checkpoint50i_post
364    o Preparing next differentiable checkpoint and sync
365      of MAIN vs. ecco-branch
366      - 1st step: this one is differentiable
367      - 2nd step: next(! not this) checkpoint will have updated packages
368                  from ecco-branch)
369    
370    checkpoint50h_post
371    o new package "land": provide surface BC for AIM.
372    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
373    o AIM: use true log-P extrapolation for near surface temp (= as in
374        F.Molteni paper) ; update aim.5l_cs output.
375    o New variable in PARM03 for more flexible pickups
376    o somewhat cleaned package initialisation sequence for
377      ctrl/ cost/ ecco/ in packages_... routines
378    
379    checkpoint50g_post
380    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
381      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
382      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
383        made the default because of faster convergence than ADI
384    
385    checkpoint50f_post
386    o exf totally restructured
387      - replaced all exf_set_ routines by one generic exf_set_gen.F
388        and made sure it's still differentiable
389      - split exf_getffields.F into new exf_bulkformulae.F
390      - exf_inscal_/exf_outscal_ suffixes consistent with field names
391      - updated adjoint/makefile and relevant verif. accordingly
392    
393    checkpoint50f_pre
394     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
395          + change Evap over land. (update aim.5l_cs output)
396     o added missing .cvsignores and made uniform across expts
397     o changed configuration of tidal_basin_2d expt
398     o added pkg/debug functions for tracing code in fatal crashes
399     o tidied pkg/monitor to use MONITOR_OPTIONS.h
400     o new fn in pkg/monitor to stop model if solution grows too big
401     o removed lots of single quotes from comments
402    
403    checkpoint50e_post
404    o make KPP work with PTRACERS
405     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
406       nearly a copy of kpp_transport_s
407     - there is no analogue to SurfaceTendencyS, so I have to use
408       gPtr(of the surface layer) instead
409    o add a new platform SunFire+mpi (SunFire 15000) to genmake
410    checkpoint50e_pre
411    
412    checkpoint50d_post
413    o change kpp output from multiple-record state files to single-record state
414      files analogous to write_state.F
415    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
416      analogous to the cg2d-related output.
417    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
418      so that writing to internal file fn (with length 512) fails.
419    checkpoint50d_pre
420    
421    checkpoint50c_post
422    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
423    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
424    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
425    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
426    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
427    
428    checkpoint50c_pre
429    Merging from release1_p13:
430    o bug fix for pkg/seaice dynamic solver
431    o Added SEAICE_initialHEFF to pkg/seaice
432    
433    checkpoint50b_post
434    o store u*,v* in gU,V instead of in guNm1,gvNm1
435    o in order to put the momForcing out of the Adams-Bashforth:
436      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
437      to timestep.F
438    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
439    o re-generate output for highly sensitive test-exp:
440       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
441    
442    checkpoint50b_pre
443    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
444    o corrected CPP option mismatch in exf_Bulk... functions for case
445      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
446    
447    checkpoint50a_post
448    o Bug fix for merging between c50 and KPP.
449      ikey was passed from thermodynamics to kpp_calc via
450      common block rather than being recomputed in kpp_calc,
451      in contradiction with new key itdkey.
452      New key ikppkey created, and tamc.h headers updated.
453    
454    checkpoint50
455    - 2nd step of merge with ecco-branch:
456      merge changes in ecco-branch back into main trunk
457    - bug fix in find_alpha
458    - more storing in gmredi_calc_tensor.F, kpp_routines.F
459    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
460    - merged some sliced AD support routines
461    
462    checkpoint49
463    merged from ecco-branch:
464    o exf:
465      - Enable initialisation of forcing fields to constant
466        (runtime) values.
467      - in exf_getffields.F
468        Reduce i-/j-loop to interior domain, discarding overlaps.
469        That also fixes wrong TAF-key computations for key_1, key_2
470        with bulf formulae.
471      - exf_init.F modify #ifdef for exf_init_evap
472      - exf_getffieldrec.F, ctrl_getrec.F
473        The following INT-usages are not safe:
474          fldsecs  = int(fldsecs/fldperiod)*fldperiod
475          fldcount = int(fldsecs/fldperiod) + 1
476        and were modified.
477    o autodiff: checkpoint_lev...
478      - updated storing for bulk formulae (some arrays were missing)
479      - added state for seaice package
480      - synchronized with main branch
481    o DIVA:
482      Modif.s in
483      - the_main_loop.F
484      - the_model_main.F
485      and added cost_final_restore.F cost_final_store.F
486      o With these changes, it is possible to fully separate
487        the first forward run to compute the cost function (mdthe_main_loop)
488        and adjoint runs over individual DIVA intervals (adthe_main_loop)
489        into separate model executions.
490        This enables better tuning of DIVA to given queue sizes.
491      o Loss of cost function value in consecutive DIVA runs is
492        fixed by storing to 'costfinal' file.
493      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
494        beginning/end of adjoint integration is accounted for.
495      The current changes apply to TAF-1.4.26.
496      TAF has one remaining bug, requiring one manual change
497      (see MITgcm manual).
498    o cal: synchronized between MAIN and ecco-branch
499    
500    checkpoint48i_post
501    o Changes to restore differentiability of code w.r.t. previous tag
502      (mostly adding new routines to make list and replacing
503      pressure by totPhiHyd).
504    o Updated and merged grdchk package
505      - has both ADM and TLM checks
506      - works for single- and multi-proc.
507      - output cleaned
508      - worked successfully for parallel DIVA
509    o genmake:
510      - Adding -platform=SP4
511      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
512    o Modif. for DIVA:
513      ctrl_unpack should not be called in intermediate DIVA interval.
514      (similar thing would apply for active files such as
515      tbar, sbar, psbar, which should not be reinitialised;
516      only relevant for ecco-branch)
517    
518    checkpoint48h_post
519    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
520    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
521    o Added SEAICE_initialHEFF to pkg/seaice
522    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
523    
524    checkpoint48g_post
525    --- EOS:
526    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
527      store total Potential in totPhyHyd for diagnostics & EOS.
528    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
529    --- Pressure/geopotential gradient:
530    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
531    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
532      ( changes results of global_ocean_pressure )
533    o NLFS + z-coord.: add eta*Rho' contribution.
534    o accurate phiHyd when using interface-W at the middle between 2 centers
535     ( changes results of ideal_2D_oce )
536    o includes r* 2nd term in potential gradient.
537    
538    checkpoint48f_post
539    Merging from release1_p12:
540    o Modifications for using pkg/exf with pkg/seaice
541      - improved description of the various forcing configurations
542      - added basic radiation bulk formulae to pkg/exf
543      - units/sign fix for evap computation in exf_getffields.F
544      - updated verification/global_with_exf/results/output.txt
545    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
546      (SBO) core products, including oceanic mass, center-of-mass,
547      angular, and bottom pressure (see pkg/sbo/README.sbo).
548    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
549      to avoid negative values in shallow regions.
550      - updated verification/natl_box/results/output.txt
551      - updated verification/lab_sea/results/output.txt
552    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
553    o Added useSingleCpuIO option (see PARAMS.h).
554    o Updated useSingleCpuIO option in mdsio_writefield.F to
555      work with multi-field files, e.g., for single-file pickup.
556    o pkg/seaice:
557      - bug fix in growth.F: QNET for no shortwave case
558      - added HeffFile for specifying initial sea-ice thickness
559      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
560    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
561      kpp_transport_t.F, forward_step.F, and the_main_loop.F
562    o pkg/seaice:
563      - adjoint-friendly modifications
564      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
565    
566    checkpoint48e_post
567    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
568    o dynamics: change definition of computational domain & adapt mom_fluxform
569      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
570    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
571        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
572        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
573        global_ocean.90x40x15 global_with_exf global_ocean_pressure
574        inverted_barometer solid-body.cs-32x32x1
575      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
576    
577    checkpoint48d_post
578    o in preparation for r*:
579     a) use pre-computed gradient of hydrostatic potential:
580        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
581     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
582        => affects results of glob_oce_pressure (different truncation error)  
583      update output.txt of ideal_2D_oce & global_ocean_pressure
584    
585    checkpoint48d_pre
586    o in preparation for r*:
587      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
588      pass the 2 comp. of the grad. as arguments to momentum S/R.
589      but for the moment, only used if it does not change the results.
590    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
591    
592    checkpoint48c_post
593    Modifications in treatment of initial flux forcing controls
594    to avoid extra storing of flux fields.
595    
596    checkpoint48c_pre
597    o Added tidal_basin_2d experiment (currently 1D!)
598    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
599    
600    checkpoint48b_post
601    o r* coordinate added in #ifdef NONLIN_FRSURF block.
602     (modification to pressure gradient not yet implemented)
603    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
604      (for U & V) that are used for vertical advection of momentum.
605    
606    checkpoint48a_post
607    o In preparation for r*, use temp. array to compute vertical transport
608       in flux-form momentum pkg. => change results of few test-exp.
609      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
610                        lab_sea, natl_box & plume_on_slope
611    
612    checkpoint48
613    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
614    
615    checkpoint47j_post
616    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
617    o moved adexch from forward_step to addummy_in_stepping
618    o added exch in ctrl_map_...
619    o aveFreq.=0. at end of cost_final to avoid overwrite in
620      reverse checkpointing loop
621    o Yet more changes in gmredi:
622      * adgmredi_calc_tensor
623        avoiding all recomputation of gmredi_slope_limit
624      * adgmredi_x/y/rtransport
625        added flag for excessive storing to avoid recomp. of
626        u/v/rtans, dTdx/y/z
627        -> this is not really necessary and very memory-consuming
628      * adgmredi_slope_psi:
629        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
630      * gmredi_slope_limit
631        re-activated full calculation of taperfct for case 'ac02'
632    o updating verification/ adjoints of carbon, global_ocean.90x40x15
633    
634    checkpoint47i_post
635    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
636    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
637      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
638    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
639    o gmredi: fix few bugs.
640    
641    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
642    This will be a good checkpoint to plug into the ecco-branch.
643    o few modif.'s to get latest version adjointed
644      (mainly kick out code in ini_linear_phisurf)
645    o modif's to run adjoint with exactConserv
646    o case GM_BOLUS_ADVEC should be cleaned
647      S/R gmredi_slope_psi should be cleaned
648    o verification/carbon now has exactConserv=.TRUE.
649    
650    checkpoint47g_post
651    o time-average AIM output: becomes independent from statvars time-average
652      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
653    o After TAF bug fix:
654      Tested adjoint of gmredi package.
655      Tests were done with checkpoint47 rather than with latest
656      checkpoint47f_post since the latter is broken for the adjoint
657      verification/carbon/ contains both ADM and TLM gradient checks.
658    Here they are, before they get changed/lost/stolen.
659    Mostly modif.'s to fix numerical sensitivities.
660    Gradient checks OK for
661    - GM_taper_scheme:
662      * clipping
663      * ac02
664      * linear
665      * glw91
666      * dm95
667      * ldd97
668    - GMREDI_OPTIONS:
669      * GM_VISBECK_VARIABLE_K
670      * GM_NON_UNITY_DIAGONAL
671      * GM_EXTRA_DIAGONAL
672      * GM_BOLUS_ADVEC
673    in conjunction with data.gmredi parameters to be checked in
674    in a few minutes under verification/carbon/code/
675    
676    checkpoint47f_post
677    Merging from release1_p10:
678    o modifications for using pkg/exf with pkg/seaice
679      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
680        and SEAICE_EXTERNAL_FLUXES
681      - pkg/exf CPP options EXF_READ_EVAP and
682        EXF_NO_BULK_COMPUTATIONS
683      - usage examples are Experiments 8 and 9 in
684        verification/lab_sea/README
685      - verification/lab_sea default experiment now uses
686        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
687    
688    checkpoint47e_post
689    o created a tag prior to creating a branch
690    
691    checkpoint47d_post
692    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
693      at the bottom boundary had an erroneous half slip boundary condition
694    o added bottom drag and no slip boundary condition capabilities to
695      oceanic pressure coordinates code
696    o added new verification experiment global_ocean_pressure, this experiment is
697      also described in the tutorial section of the manual
698    checkpoint47d_pre
699    
700    checkpoint47c_post
701    o Added a verification experiment for a global cubed-sphere ocean run
702      -  verification/global_ocean.cubed32x32x30
703      -  uses pkg/therm_seaice and pkg/bulk_forcing
704    
705    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
706    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
707      when using P-coordinate; only implemented for atmospheric config.
708    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
709      NOTES: requires option NONLIN_FRSURF to be "#define".
710    o update advect_xz/results/output.txt (left from checkpoint44g_post)
711    
712    checkpoint47b_post
713    Merging from release1_p9:
714    o pkg/seaice
715      - removed GOTO's and added taf directives
716      - double precision constants to reduce the g77 (Linux)
717        to F77 (SGI) differences reported in release1_p8
718    o tools/genmake
719      - added SGI options
720    o verification/testscript
721      - updated to that of checkpoint47a_post
722    o verification/global_ocean.90x40x15/input/eedata
723      - modified for SGI f77 compatibility
724    o verification/lab_sea
725      - added description of sea-ice model
726      - added missing matlab routines
727      - added test of thermodynamics parallelization
728    
729    checkpoint47a_post
730    o new pkg: aim_v23
731     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
732       for now, keep the same surface forcing as before.
733     - Part-Cell implemented into AIM; check that Heat & Water are conserved
734     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
735     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
736    o add diagnostic of surface correction term in monitor output
737    
738    o bulk_force and therm_seaice
739    - Two packages:  bulk_force (Bulk forcing)
740      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
741    - Earlier integration from Stephaine Dutkiewicz
742      and Patrick Heimbach.
743    - Two ifdef statements for compile time,
744       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
745    
746    checkpoint47
747    differentiable version of checkpoint46n_post
748    o bug fix in quasihydrostaticterms
749    o * "clean" adjoint code (in terms of extensive recomputations)
750        can now be obtained for all GMREDI options (i.e. for
751        - GM_VISBECK_VARIABLE_K
752        - GM_NON_UNITY_DIAGONAL
753        - GM_EXTRA_DIAGONAL
754        - GM_BOLUS_ADVEC )
755      * However, wrong gradient check problem remains unsolved.
756      * New CPP options have been introduced for different
757        tapering schemes
758    o external_fields_load now part of differentiation list
759    o pressure needs multiple storing;
760      would be nice to have store_pressure at beginning or
761      end of forward_step, e.g. by having phiHyd global (5-dim.)
762      (NB: pressure is needed for certain cases in find_rho,
763      which is also invoked through convective_adjustment).
764    o recomputations in find_rho for cases
765     'JMD95'/'UNESCO' or 'MDJWF' are OK.
766    o #define ATMOSPHERIC_LOADING should be differentiable
767    o ini_forcing shifted to begining of initialise_varia
768    o Incorporating QNVS line search routines into MITgcm
769      (this is separate code, and therefore not under pkg)
770      lsopt/, optim/
771    o Updated verification/carbon/
772      - #define GM_VISBECK_VARIABLE_K
773      - GM_taper_scheme    = 'ldd97'    
774    
775    checkpoint46n_post
776    Merging from release1_p8:
777    o verification/natl_box:
778      updating new external_fields_load routine
779    o New package: pkg/seaice
780      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
781      The sea-ice code is based on Hibler (1979-1980).
782      Two sea-ice dynamic solvers, ADI and LSR, are included.
783      In addition to computing prognostic sea-ice variables and diagnosing
784      the forcing/external data fields that drive the ocean model,
785      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
786      The implied surface heat flux is then stored in variable
787      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
788      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
789      non-local transport term.  Because this call precedes model
790      thermodynamics, temperature under sea-ice may not be "exactly" at
791      the freezing point by the time theta is dumped or time-averaged.
792      N.B.: fairly large differences in accuracy occur across
793            different platforms/compilers; comparison between
794            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
795            generated output gives:
796       T           S           U           V
797      C D M    c        m  s        m  s        m  s        m  s
798      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
799      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
800      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
801    
802      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
803    o GAD:
804      - generated new common blocks to account for call of
805        same gad routines with differing traceridentities
806        (needed to modify tracerIdentity indices in GAD.h)
807      - generated separate common blocks for case useCubedSphereExchange
808        (Department of Futurology)
809      - parameter lists to gmredi_?transport: added tracerIdentity
810      - added new key indices to tamc.h
811    o external_fields_load:
812      - added this routine to TAF list
813      - needed to make some common blocks global and additional storing
814        along the same lines as exf package (checkpoint_lev?_directives.h)
815    o exf:
816      updated external forcing package
817      - bug fixes carried over from ecco-branch
818        (missing OBCS_OPTIONS.h in two routines)
819      - enable easy to use "no forcing".
820      - added exf I/O for atmospheric loading
821      - added exf I/O for runoff data
822      - transfered scaling between exf <-> MITgcm to exf namelist
823    o Adding new verification experiment global_with_exf.
824      This verification experiment is almost identical to the
825      global_ocean.90x40x15 experiment, except that it uses
826      the exf (and cal) package instead of the
827      external_fields_load routine (cf README file).
828    
829    checkpoint46m_post
830    o modified testscript to return -- when there are no lines of "%MON" output
831    o added new flag "quasiHydrostatic" for QH mode
832      and new routine quasihydrostaticterms()
833    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
834      New routine: mom_u_coriolis_nh()
835    o fixed sign of non-hydrostatic metric terms in u and v equations.
836      Depend on correct sign of gravitySign.
837    o added work.pc* to .cvsignore in aim directories using ifc
838    o introduced flag for controllin non-hydrostatic metric terms
839    o removed gravitySign from PARM04
840    o switched to g77/ifc from pgf77 in aim experiments
841    
842    checkpoint46l_post
843    o made convective adjustment work with pressure coordinates:
844     - changed the direction of k-loop in convective_adjustment.F for the
845       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
846     - adjusted the reference pressure k-index in convective_adjustment.F
847     - adjusted the convection condition in convect.F (in analogy to
848       calc_ivdc.F)
849     - convective_adjustment no longer computes anything on the halos
850     - removed the warnings about negative salinity from find_rho.F and
851       find_alpha.F; instead the new routine look_for_neg_salinity, called
852       at the beginning of find_rho, find_alpha, and find_beta, does a
853       check of the entire slice, if CPP-option
854       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
855    checkpoint46l_pre
856    
857    checkpoint46k_post
858    o fixed the verification/global_ocean.90x40x15 experiment:
859     - new bathymetry (the world according to A., JMC, and M.)
860     - new initial fields and forcing fields (*.bin files)
861     - new POLY3.COEFFS (for the next release one should switch to a full
862       equation of state: JMD95P or MDJWF)
863     - fixed several errors and redundancies in the data file
864     - experiment uses looped cells
865     - added matlab directory with diagnostic scripts for plotting of output
866    
867    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
868     - read AIM physics parameters from a file (data.aimphys)
869     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
870    
871    checkpoint46j_post
872    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
873    o move wVel computation at the end of the time step, in S/R integr_continuity
874    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
875    o update timeave pkg for wVel diagnostic.
876    checkpoint46j_pre
877    
878    checkpoint46i_post
879    o Clean up AIM package (and keep the results unchanged):
880      include CPP_OPTION and use IMPLICT NONE in all routines ;
881      declare all the variables _RL ; use _d 0 for all numerical constants.
882      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
883    
884    checkpoint46h_post
885    o cleaned up the use of rhoNil and rhoConst.
886      - rhoNil should only appear in the LINEAR equation of state, everywhere
887        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
888        and the dynamical equations are all divided by rhoConst
889    o introduced new parameter rhoConstFresh, a reference density of fresh
890      water, to remove the fresh water flux's dependence on rhoNil. The default
891      value is 999.8 kg/m^3
892    o cleanup up external_forcing.F and external_forcing_surf.F
893      - can now be used by both OCEANIC and OCEANICP
894    checkpoint46h_pre
895    
896     Added code to convert surface volume flux (fresh water) into
897     a mass flux when using P coordinates in the ocean (OCEANICP).
898     Note: It assumes you have set rho0=rhoConst=density of fresh water.
899    
900    checkpoint46g_post
901    o Include a new diagnostic variable phiHydLow for the ocean model
902      - in z-coordinates, it is the bottom pressure anomaly
903      - in p-coordinates, it is the sea surface elevation
904      - in both cases, these variable have global drift, reflecting the mass
905        drift in z-coordinates and the volume drift in p-coordinates
906      - included time averaging for phiHydLow, be aware of the drift!
907    o depth-dependent computation of Bo_surf for pressure coordinates
908      in the ocean (buoyancyRelation='OCEANICP')
909      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
910        Theta, Salinity, and Pressure in the parameter list. This routine is
911        presently contained in find_rho.F. This routine does not give the
912        correct density for 'POLY3', which would be a z-dependent reference
913        density.
914    o cleaned up find_rho
915      - removed obsolete 'eqn' from the parameter list.
916    o added two new verification experiments: gop and goz
917      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
918    checkpoint46g_pre
919    
920    checkpoint46f_post
921    o Enable tangent linear (forward mode) gradient checks:
922      - extended active file handling to g_... files
923      - added TANGENT_SIMULATION to theSimulationMode
924      - extended grdchk package accordingly
925    o added tangent linear setup in verification/carbon/code_ftl
926    o added adjoint setup in verification/front_relax/code_ad
927    
928    checkpoint46e_post
929    o Added new equation of state -> MDJWF
930      - EOS of McDougall et al., 2002, JAOT, submitted
931      - caveat: the equation of state is only valid for a smaller (more
932        realistic?) range of values than JMD95P/Z and UNESCO
933      - added masks to the calculation of pressure in store_pressure
934      - added more check values for density in check_eos (ini_eos.F), some of
935        the old check values are out of the range of the MDJWF-eos, so don't
936        expect perfect matches for those
937    checkpoint46e_pre
938    
939    checkpoint46d_post
940    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
941      'OCEANICP', also initialised field pressure correctly in ini_eos in the
942      case of pressure coordinates. eosType='JMD95Z' in
943      combination with buoyancyRelation='OCEANICP' now causes an error.
944    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
945      in find_alpha/beta.
946    checkpoint46d_pre
947    
948    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
949      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
950    
951    checkpoint46c_post
952    o Changes necessary for ocean in p-coordinates
953     -  Added new buoyancy relation = 'OCEANICP'
954     -  Added new parameters = gravitySign (this used to be contained inside
955        the factor dRdZ which I added when we first switched to R coordinates).
956     X GM/Redi is not compatible (yet)
957     X bottom drag and no-slip need to be debugged.
958    checkpoint46c_pre
959    
960    checkpoint46b_post
961    o Added new equation of state -> JMD95Z and JMD95P
962      - EOS of Jackett and McDougall, 1995, JAOT
963      - moved all EOS parameters into EOS.h
964      - new routines ini_eos.F, store_pressure.F
965    o Added UNESCO EOS, but not recommended because it requires
966      in-situ temperature (see JMD95)
967    o Modified formatting for knudsen2.f in utils/knudsen2 and added
968      unesco.f to be used with POLY3
969    checkpoint46b_pre
970    
971    checkpoint46a_post
972    o Added (atmospheric) pressure loading
973      - new field in FFIELDS.h, etc...
974      - new cpp flag ATMOSPHERIC_LOADING
975    o Changed hFacC to _hFacC in calc_phi_hyd.F
976    o Added SHORTWAVE_HEATING to some files for consistency
977    checkpoint46a_pre
978    
979    checkpoint46
980    further merges from release1_p5
981    o new ctrl package
982      - adopted from ECCO environment to enable optimization
983      - added Eliassen Palm fluxes to controls
984    o added Eliassen Palm flux controls to gradient check package
985    o cost package
986      - Compatible with new ctrl package
987      - added Eliassen Palm cost hooks
988      - modif's of existing cost functions
989    o Adjoint-related bug fixes in kpp:
990      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
991      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
992    o autodiff package
993      - flow directives:
994        + new for S/R do_the_model_io
995        + enhanced for S/R checkpoint
996        + new gmredi.flow
997      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
998        disable adcommon.h/g_common.h by default.
999      - fixed problem for adjoint of global_max
1000    o modified verification/carbon/
1001    o New setup for adjoint of global_ocean
1002    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1003    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1004    o incorporated hooks for sponge layer code (external_forcing.F)
1005    
1006    checkpoint45d_post
1007    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1008    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1009      (affects plume_on_slope "cg2d" output)
1010    o add new parameter deltaTfreesurf for free-surface time stepping
1011    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1012    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1013    o change phiMin in exp1 (to agree with documentation)
1014    o add new flags:
1015     - T,S forcing inside/outside Adams-Bashforth
1016     - turn off temp,salt advection and/or forcing
1017     - for each tracer, define internal flag for multiDimAdvection & A-B
1018    o monitor: change definition of KE to check conservation of Energy
1019    
1020    checkpoint45c_post
1021    o Removed f90 comments ("!")
1022    o Modified initialisations to enable exf package for MITgcm
1023      (without invoking ECCO_PACKAGE).
1024    o modifications to gradient check package (Martin Losch)
1025      - enable centered differences
1026      - modified format of standard output
1027    
1028    checkpoint45b_post
1029    o cleaned exchange calls in cg2d
1030    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1031    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1032      to configure barotropic setup (Martin Losch)
1033    o moved some initialisations within bi,bj loop in dynamics
1034      (TAF flow dependency)
1035    o in initialise_varia, moved call packages_init_variables
1036      before convective_adjustment_init
1037      (corresponding adjustment of TAF tape initialisation).
1038    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1039    
1040    checkpoint45a_post
1041    o compute Rho over the whole domain (extend iMin,jMin indices)
1042    o specific exchange for X-slice domain (case Ny=1)
1043    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1044    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1045    
1046    checkpoint44h_post = checkpoint45
1047    o Fix to restore differentiability:
1048      place at which packages_init_variables is called in
1049      initialise_varia is crucial for reverse control flow.
1050    o modifications in GMRedi to enable stable adjoint
1051      (corresponding modif's in thermodynamics, dynamics)
1052    o added missing hook for sponge layer code in external_forcing
1053    o modified test cost functions
1054    o storing in gad_advection (plus removal of write(0,*)!
1055    o missing headers TR1.h added in convective_adjustment routines
1056    o errorMessageUnit set non-equal zero in eeboot
1057      (conflict on some platforms, e.g. IBM SP3)
1058    o modified carbon verif.
1059    
1060    checkpoint44h_pre
1061    o vertical grid option: allow to put the Interface at the middle between
1062      2 cell-centers ; replace delZ in pkg/kpp by drF.
1063    o GM Advective form: Tracers are advected using the residual transport (=
1064      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1065    
1066    checkpoint44g_post
1067    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1068      results) ; ifdef missing in thermodynamics.F
1069    
1070    checkpoint44f_pre,checkpoint44f_post
1071    o added PTRACERS package
1072      This allows an arbitrary number of passive tracers to be integrated
1073      forward simultaneously with the dynamicaly model.
1074      + Implemented so far:
1075        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1076        - I/O and checkpointing
1077        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1078      + Not implemented so far:
1079        - KPP
1080        - OBCS
1081      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1082        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1083        line in data.pkg.
1084      + This package is disabled by default since it increases storage.
1085    
1086    
1087    o testscript: added -cleanup option
1088    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1089                 b) enable to filter 2D fields.
1090    
1091    checkpoint44e_pre,post
1092    o re-wrote convective adjustment to use pre-calculated weights
1093      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1094      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1095      Original calls to convect() still in place.
1096    
1097    chkpt44d_pre,post
1098    o added missing EXCLUDE_MONITOR flags
1099    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1100      (incompatible typ in MIN/MAX expressions caused problems
1101      on IBM SP3)
1102    o in genmake added variable MAKEDEPEND
1103      plus resetting for case SunOS
1104    o added timer_stats.c routine for IBM SP3
1105    o removed variables in dynamics
1106    !!! I forgot to create tag chkpt44d_pre !!!
1107    !!! But chkpt44d_pre = chkpt44c_post    !!!
1108    
1109    o real fresh water flux implemented with non-linear free-surface.
1110    
1111    chkpt44c_pre,post
1112    o few fix (mask in shap_s2, EmPmR in external_field_load,
1113      USE_NATURAL_BCS in solve_for_P);
1114    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1115    
1116    checkpoint44b_pre/_post
1117    o merge of relevant stuff from the ecco-branch:
1118      - genmake: removed $S64 overwrite for case SunOS
1119      - pkg/exf: update and corrections for field swapping and obcs
1120      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1121                  harmonized between ECCO and MITgcm
1122      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1123                      updated checkpointing_lev... lists for obcs
1124      - model/src: minor changes in forward_step, plot_field
1125                   added directive for divided adjoint in the_main_loop
1126      - pkg/mdsio: added mdsio_gl_slice
1127    
1128    o check parameters & config (chkpt44a_pre,post)
1129    o OBC and NonLin_FrSurf.
1130    
1131    checkpoint44
1132    o fix bug in mom_vi_del2uv
1133    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1134    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1135    o update AIM experiments (NCEP input files)
1136    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1137    o added some stuff for AD
1138    
1139    checkpoint43
1140    o added two new advection tests
1141    o added global 4x4 degree ocean test
1142    o added test of H&S94 with free surface on cube
1143    o some final mods for gradient check, adjoint,...
1144    
1145    checkpoint42
1146      Fixed AD-related problems:
1147    o Store directives up-to-date with re-arranged Adams-Bashforth
1148      (mainly thermodynamics.F)
1149    o New store directives for multi-dim. advection schemes
1150      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1151      * new common block and key passkey
1152      (mainly gad_advection.F)
1153    o Modified store directives for split of dynamics/thermodynamics
1154      for the case ALLOW_KPP
1155    o Cleaned argument list for timestep_tracer.F
1156    
1157    checkpoint41
1158    o re-formatted/added comments in prologues of key subroutines
1159      to work with protex
1160    
1161    checkpoint40
1162    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1163    o added FLT (floats) package from Arne along with demo. experiment
1164    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1165      implementation of forward-in-time forcing terms
1166    o more mods for non-linear free-surface including new variable
1167    o modified multi-dim method to work on cube
1168    o bug fix in KPP (from DM)
1169    
1170    checkpoint40pre9
1171    o added DST advection schemes
1172    o fix MPI bug on SGI's
1173    o modifications for non-linear free-surface
1174    o fixed conditionals for fixed flow/passive tracer only mode
1175    o added tension/strain form of stress tensor
1176    o changes to commenting of arguments for TAF/TAMC
1177    o added/updated many matlab scripts
1178    o added multi-dimensional advection method for tracers
1179      
1180    checkpoint40pre8
1181    o new package rw/
1182      Added method for dumping intermediate local arrays:
1183      mdsio_writetile - same as mdsio_writefield except works from inside
1184                        bi,bj loop
1185      mdsio_writelocal - same as mdsio_writetile except works for local
1186                         arrays
1187      write_local_r? - higher-level wrapper for mdsio_writelocal
1188      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1189      Example given at end of mom_vecinv.F that dumps some local arrays.
1190    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1191      control flux-form versus vector invariant code.
1192      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1193      or genmake -DISABLE ...
1194    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1195      (additional storing is now needed for case vecinv;
1196      currently nothing implemented to switch this storing off
1197      in case fluxform is used since no CPP flag available).
1198    
1199    checkpoint40pre7
1200    o bug fix in dynamics.F
1201      calc_viscosity called before k=1,Nr loop.
1202    o added some #ifdef's ALLOW_PASSIVE_TRACER
1203    o cleaned initialisations in ctrl_map_ini
1204      related to TAF
1205    
1206    checkpoint40pre6
1207    o split dynamics into thermodynamics & dynamics
1208    o corresponding split of calc_diffusivity into
1209      calc_diffusivity, calc_viscosity
1210      (kpp_calc_diff, kpp_calc_visc).
1211    o Added diffkr, kapgm to control variables
1212    o bug fix in gmredi_slope_limit for ldd97
1213    
1214    checkpoint40pre5
1215    o proper initialization of Adams-Bashforth time stepping
1216      + uses forward step for very first step of model (iter=0)
1217    o re-generated *all* output since almost all output is modified by this
1218      change (sorry but we've been putting this one off for about 2 years)
1219      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1220        *not* regenerated since they are already out of date and I don't
1221        want to create the impression that they are suddenly working.
1222    o removed KAP stuff for DEC's
1223    o modified/added many .cvsignore files in */code and */input
1224    o added new expt "solid-body.cs-32x32x1"
1225      + this uses an alternative form of ini_curvilinear_grid.F which
1226        is not necessarily any better than the current one...
1227    
1228    checkpoint40pre4
1229    o added re-initialisations of utrans,vtrans,rtrans in
1230      calc_common_factors which are crucial for TAF.
1231    o extended iMin,jMin range for calc_common_factors,
1232      calc_diffusivity
1233    o added option ALLOW_PASSIVE_TRACER
1234    o a few minor updates and fixes
1235    
1236    checkpoint40pre3
1237    o created calc_gtr1.F for gad package
1238    o split the_main_loop and re-introduced forward_step
1239    o some recomputations of nIter0 for TAMC
1240    
1241    checkpoint40pre2
1242    o Updated to latest branch of AJA, JMC
1243    o Added gradient check package
1244    o Added routines for passive tracer handling
1245    o Added carbon sequestration sensitivity experiment
1246    
1247    checkpoint39
1248     o Modifications and fixes to support TAMC
1249       (mainly missing or wrong directives)
1250     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1251       in addummy_in_stepping
1252     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1253     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1254     o Included following packages:
1255       cal: calendar
1256       exf: external forcing
1257       ecco: essential routines to control use of cal, exf
1258             (NB: this is not the full ECCO environment)
1259     o disabled some packages by default in genmake
1260    
1261    checkpoint38
1262     o see notes_c37_adj.txt
1263     o corrected wrong layer index in external_forcing_t
1264     o replaced the_main_loop/forward_step by the_main_loop
1265     o removed forceoutput from write_state
1266       (replaced criteria for initial/final state)
1267     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1268    
1269    checkpoint37
1270     o mdsio.F routine split and packaged in pkg/mdsio
1271       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1272        used unless genmake -disable=mdsio)
1273     o allow a more precise surface-geopotential gradient for the atmosphere
1274       taking into account the change in space of Alpha (=1/rho) at the surface.
1275     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1276       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1277     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1278       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1279       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1280     o Time-Average diagnostics defined as a pseudo package "timeave".
1281     o pickup files : old pickup (before c35) did not work with new code (c35
1282       and after) unless activating 2 commented lines in initialise-varia.
1283     o Non-Hydrostatic pickup file Pb fixed.
1284     o bug with Rigid-lid version (since c35) fixed.  
1285    
1286    checkpoint36
1287     o implement Crank-Nickelson barotropic time-stepping
1288     o recover Time-Average diagnostics
1289     o fix Pb in checkpoint (PR#19)
1290     o AIM become a standard package ; clean unused CPP_kees
1291    
1292    checkpoint35
1293     o subtantial rewrite of dynamics.f
1294     o allows staggered time-stepping
1295     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1296     o added bottom drag (linear + quadratic)
1297    
1298    checkpoint34
1299     o Modified exchange routines for correct reverse simulation.
1300     o Added verification output to comply with bug fix in impldiff.F
1301       as of c33 (exp2, natl_box).
1302     o Corrected store directives in dynamics.F
1303     o Corrected array boundaries in impldiff.F
1304     o Corrected array dimensions in gmredi.
1305       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1306     o Added routine GLOBAL_SUM_INT to global_sum.F
1307     o Added mdsio_gl.F for ECCO purposes.
1308    
1309    checkpoint33
1310     o Fixed bug in lower BC in impldiff.F
1311     o Fixed confusion about units of forcing arrays in FFIELDS.h
1312       namely Fu,Fv,Qnet,Qsw,EmPmR:
1313       - Removed verification/natl_box/code/external_fields_scale.F
1314         (did not differ from that in model/src)
1315       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1316         (see FFIELDS.h for description)
1317       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1318         kpp_calc.F and kpp_transport_t.F
1319       - Removed model/src/external_fields_scale.F and calls to it
1320       - verification/natl_box uses flux data with "atmospheric" sign so
1321         a special version of external_fields_load.F is used to
1322         change the data as it's read in. This way, the arrays
1323         have the right units and signs at all times tha a user could
1324         possibly use them.
1325     o Corrected genmake to delete a temporary file during configuration
1326    
1327    checkpoint32
1328     o Scaling of forcing fields moved from external_forcing.F to
1329       external_fields_scale.F, called directly after loading fields.
1330     o Surface relaxation terms added to surface tendency fields in
1331       extra subroutine.
1332     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1333       fields.
1334     o Changes in GMRedi to comply with packaging structure.
1335     o Modifications and bug fixes in KPP package.
1336     o Verification experiment for KPP added (verification/nat_box/)
1337    
1338    checkpoint31
1339     o Packages interface brought in line with defined standard
1340       -> new routines packages_...F
1341       -> changes in initialise_fixed.F, initialise_varia.F
1342       -> enables initialisation interface for ECCO package
1343     o Rescaling of external forcing fields immediately after read
1344       (removed from external_forcing.F)
1345       -> new: surface_fields_scale.F
1346       -> affects ini_foorcing.F, external_fields_load.F
1347     o Computation of surface tendencies before tendency updates.
1348       -> new: external_forcing_surf.F
1349     o Change of variable names useGMRedi, useKPP, useECCO
1350     o Further changes in dynamics.F, impldiff.F for TAMC
1351     o Tested for experiments 0, 2, 4.
1352       - not yet tested for GMRedi.
1353       - not yet tested for KPP.
1354    
1355    checkpoint30
1356     o Updates for OBCs
1357     o New experiment for test OBCs (internal_wave)
1358     o New output.txt in verification/exp4/results/
1359     o Updates for KPP: calculation of viscosity corrected, new variables
1360       kpp_dumpFreq and kpp_taveFreq
1361     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1362       and entry for T90 in genmake
1363    
1364    checkpoint29
1365     o packaged KPP and GM/Redi
1366    
1367    checkpoint28
1368     o Corrected initialization of hFacMin for difference vertical coordinates
1369     o Modified calculation of partial cell thickness to more robust algorithm
1370     o config_summary.F: replaced write_1D_... by write_0D_...
1371       read_write.F: added subroutines write_0D_...
1372     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1373       included some initialisations required for TAMC.
1374     o routine calc_isoslopes: modified sqrt computation to make it
1375       differentiable for zero argument.
1376     o routines dynamics, impldiff:
1377       included store directives and tape key computations required for TAMC.
1378     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1379    
1380    checkpoint27
1381     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1382       formulation works properly with variable resolution.
1383     o restructured the calling tree between the_model_main() and dynamics()
1384     o split initialise() into initialise_fixed() and initialise_varia()
1385     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1386       in new routine ini_psurf()
1387    
1388    checkpoint26
1389     o moved some #ifdef in optional routines to encompass everything
1390       except the argument declarations. This was using up some memory.
1391     o fixed macros like _ADT to work with both versions of Linux cpp
1392     o cleaned up some unused and uninitialized variables
1393       (helps when debugging with strict compile options)
1394     o split up CPP_EEOPTIONS.h into options and macros
1395       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1396     o patch for 2 processor JAM mode
1397    
1398    checkpoint25
1399     o updates for OBCs and NH
1400     o dramatically reduced memory usage
1401     o added "JAM" routines for use on Artic network
1402     o parameterization of convection by implicit vertical diffusion
1403     o added a diagnostic of convective index
1404     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1405       (this is was partly for OBCs and NH but also in anticipation of
1406        an explicit free-surface option)
1407     o initial state input files for U and V
1408    
1409    checkpoint24
1410     o Removed some spurious "REAL"s
1411     o Updated KPP to latest version from JPL
1412     o Added a COS(latitude) in horizontal viscosity
1413    
1414    checkpoint23
1415     o Added del^4 diffusion for salt and temperature
1416     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1417    
1418    checkpoint22
1419     o Made many small changes: implicit none, format(i5), etc...
1420     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1421    
1422    checkpoint21
1423     o Introduced new I/O package that supports direct-access records (mdsio.F)
1424     o Split-up mid-level I/O routines
1425     o Updated input data for experiments 0,1,2,4 and 5
1426     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1427    
1428    checkpoint20
1429     o Tidied up open-boundaries some more
1430     o Added non-hydrostatic code
1431     o Fixed some input data
1432     o Modified MPI start-up to work in "coupled" context.
1433    
1434    checkpoint19
1435     o Tidied up directory structure for verification experiments.
1436     o Added new code for open boundaries.
1437     o Corrected advective terms near boundaries.
1438     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1439     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1440     o Split default parameters out of ini_parms.F into set_defaults.F.
1441    
1442    checkpoint18
1443     o Further changes for optional code generation with
1444       CPP - ugh!
1445    
1446    checkpoint17
1447     o Beginning to incorporating modularity
1448       for supporting atmos. and ocean configs.
1449     o Small changes for TAMC complinace
1450     o New ultra simple test case. Barotropic box
1451       configuration "exp0".
1452    
1453    checkpoint16
1454     o Minor changes to exchange routines to support
1455       accumulation in reverse mode. Adjoint of an
1456       assignment is an addition.
1457     o Changes to support compilation by TAMC (LR(1)
1458       syntax) and by g77 under Linux ( 72 character
1459       limit ).
1460    
1461    checkpoint15
1462     Rewrote exchange routines to allow
1463     o General tile <-> tile connectivity.
1464     o TAMC reverse mode flag ( is this really needed? )
1465     o Variable width overlap and exchange region widths.
1466     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1467       shmput/shmget, VIA, SYSV shmem and every other cool
1468       communication method.
1469    
1470  checkpoint14  checkpoint14
1471   Consistent isomorphism chages made. These allow dynamical core   Consistent isomorphism chages made. These allow dynamical core
1472   to support both pressure and meters as a vertical coordinate.   to support both pressure and meters as a vertical coordinate.

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