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revision 1.1 by cnh, Tue May 26 14:38:05 1998 UTC revision 1.221 by dimitri, Mon Dec 8 02:13:59 2003 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
7    o added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
8    
9    checkpoint52d_pre
10    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
11    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
12    
13    checkpoint52c_post
14    o Fixing OPTIONS files for use of exf:
15      - ALLOW_ECCO not needed
16      - ECCO_CPPOPTIONS.h should not be included from
17        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
18        as has been the case in the past
19      - All cal/exf related options are currently set in
20        single header file. Should remain so until we
21        agree on a consistent new policy.
22    o Removed all CPP options for cal package.
23      cal has no more CPP options.
24    o modified STOREs in GAD_ADVECTION
25    o corrected key comp. for passkey
26    
27    checkpoint52b_post
28    o new version: "thsice" of thermodynamic sea-ice pkg:
29     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
30     - modify fluxes but do not change theta directly;
31     - light cleaning of bulk_force pkg (still needed with thsice).
32     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
33       + output_thsice.txt to test thsice & bulk_force pkgs.
34    o put back grid & coriolis monitor output.
35    checkpoint52b_pre
36    
37    o call "do_the_model_io" at the beginning (=> dump initial state)
38    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
39    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
40      (need info on NUMBER_OF_PTRACERS)
41    o missing PTRACERS headers in some routines
42    o default tamc.h in pkg/autodiff supposed to crash
43      to ensure proper customization
44    
45    checkpoint52a_post
46    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
47      - moved surfaceTendencyTice from pkg/seaice to main code
48      - subroutine FREEZE_SURFACE now limits only surface temperature
49        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
50        => new output.txt for global_ocean.cs32x15 & global_with_exf
51      - keep the old version of FREEZE for backward compatibility;
52        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
53      - corresponding modifs for TAF directives
54    o added surface flux output variables to TIMEAVE_STATVARS
55    o time-averaged output for pkg/ptracers
56    o fix problem with ECCO-related divided adjoint
57      snapshot file was missing some ad-variables,
58      but no warning issued by TAF
59    
60    checkpoint52a_pre
61    o some bug fixes for #undef REAL4_IS_SLOW
62    
63    checkpoint52 = ecco_c52_e35
64    o after testing adjoints of checkpoint51u_post
65    
66    checkpoint51u_post
67    o this is the post-merge tag of the ecco-branch
68      (needs another clean checkout and re-testing)
69    o various natl_box_adjoint configs and results
70      but no input fields
71    o obcs adjoint not yet merged!
72    o adding ECCO global 1x1 and 2x2 degree configs
73    o updated/extended some store directives for seaice
74    o pkg/ecco now containes ecco-specific part of cost function
75    o top level routines the_main_loop, forward_step
76      supersede those in model/src/
77      previous input data.cost now in data.ecco
78      (new namelist ecco_cost_nml)
79    o in ctrl/ cleaned some cross-dependencies and updated CPP options
80    
81    checkpoint51t_post
82    o this is the pre-merge tag of the ecco-branch
83    
84    checkpoint51s_post
85    o cleanup: removed various obsolete #define-s
86    o pkg/grdchk
87      - renamed 'ph-grd 3' to 'grad-res'
88      - merged from ecco-branch
89        (remaining bug fixes for obcs gradient checks)
90      - additional high-precision output for testreport
91        (grep for 'precision_grdchk_result')
92    
93    checkpoint51r_post
94    o cleaned up or removed CPP_OPTIONS.h files
95    o updated results for some of the tests to reflect the new
96      optfiles (-ieee: -O0 instead of -O3)
97    
98    checkpoint51q_post
99    o cd_code:
100      - moved cd_scheme.F -> cd_code_scheme.F
101      - separate read_checkpoint from cd_code_ini_vars.F
102      - separated cd_code part from write_checkpoint
103      - updated AD_SOURCE, generated .flow
104      - added CD_CODE_VARS.h to the_main_loop
105      - Moving cd_code specific store dir.s to pkg/cd_code
106    o ctrl package totally restructured
107      - pack/unpack now optional and decoupled from
108        xx_/adxx_ I/O
109      - ctrl_pack/unpack cleaned
110        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
111      - confined inclusion of AD_CONFIG.h to where necessary.
112    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
113    
114    checkpoint51p_post
115    o create initial cd_code package
116      - WARNING: the initialization of fields within packages
117        is broken because INI_FIELDS (where READ_CHECKPOINT is
118        called) is called *before* PACKAGES_INIT_VARIABLES.
119        This seems to be backwards since
120        1) its important to initially zero the entire field including
121           the "halo" region
122        2) zeroing needs to be done *before* reading pickup info
123           and the pickup call might or might not happen in any
124           particular run
125      - this needs an overhaul for R2
126    o cleanup verification/*/code/GMREDI_OPTIONS.h
127    o cleanup testreport
128    
129    checkpoint51o_post
130    o bringing AD-related verif's up to date with genmake2
131      - carbon/
132      - global_ocean.90x40x15/
133      - hs.94.1x64x5/
134      - (front_relax/ )
135    o (more) consistent directory structure for AD-related verif.'s
136    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
137    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
138    o bug fix in find_alpha.F for MDJWF:
139      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
140        change rho -> rho-rhoConst
141      - replace call find_rho to find_rhonum
142    o initialisation of rFlx extended to full array (required by TAF)
143      and shifted to thermodynamics
144    o removed PTRACERS.h in ptracers routine
145    o added surfacetendencyPtr to S/R parameter list pracers_forcing
146    o Correcting initialisations for fVerU, fVerV.
147    o helping TAF to recognize dependency on kUp for
148      fVerU, fVerV
149    o Replacing delZ by delR in pkg/ctrl/
150    checkpoint51o_pre
151    
152    o undid all of cp51 pending some cleanups and discussion
153    o added the [#include "AD_CONFIG.h"] statement to all files that need
154       it for adjoint/tl #defines
155     o re-worked the build logic in genmake2 to support AD_CONFIG.h
156     o removed tools/genmake since it no longer works
157    
158    checkpoint51n_post
159    o modifications to make FREEZE flux visible to pkg/kpp
160      - moved surfaceTendencyTice from pkg/seaice to main code
161      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
162      - subroutine FREEZE now limits only surface temperature
163        (this means new output.txt for global_ocean.90x40x15,
164         global_ocean.cs32x15, and global_with_exf)
165    o added surface flux output variables to TIMEAVE_STATVARS
166    
167    checkpoint51n_pre
168    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
169    o added [#include "AD_CONFIG.h"] to all files that use the following
170      defines:
171      - ALLOW_ADJOINT_RUN
172      - ALLOW_TANGENTLINEAR_RUN
173      - ALLOW_ECCO_OPTIMIZATION
174    
175    checkpoint51m_post
176    o incorporating changes to get TAMC/TAF working in genmake2
177      - added new TAMC/TAF targets to the Makefile
178      - various cleanups related to package handling
179      - these changes should have no impact on the forward model
180    
181    checkpoint51l_post
182    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
183     - faster algorithm for cal_addtime.F
184     - higher precision arithmetic, where needed
185     - pkg/exf *startdate variables changed from calendar date to
186       model integration time
187    
188    checkpoint51l_pre
189    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
190    o enable to apply restoring on S & T only in a latitude band.
191    o update output (external_forcing_surf modif. change truncation errors)
192       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
193    
194    checkpoint51k_post
195    o change default to: useNHMTerms=.FALSE.
196     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
197       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
198     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
199        exp1, ideal_2D_oce
200     - change data file of oceanic exp (leave the results unchanged for now)
201       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
202    o set gravitySign automatically according to the vertical coordinate used
203      (and change sign: back to "logical" value: +1 when R increases downward)
204    o added an include barrier to the default CPP_OPTIONS.h and
205      removed the #include "PACKAGES_CONFIG.h" from it
206    o fix a bug in mom_fluxform (from chk51j_post)
207    
208    checkpoint51j_post
209    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
210    o adjusted some flow directives (dynamics, thermodynamics)
211    o added cubed-sphere case to test cost function
212    o heckpoint_lev?_directives.h now include
213      pkg-specific directives, whenever those are enabled.
214    o Moving pkg-specific flow directives to corresponding pkg
215      Moving pkg-specific differentiation list to corresponding pkg
216      Moving pkg-specific checkpoint-lev storing to corresponding pkg
217      ---> conventions are
218           - pkg_ad.flow
219           - pkg_ad_diff.list
220           - pkg_ad_check_lev?_dir.h
221    
222    checkpoint51i_post
223    o merge of the branch-genmake2
224      - knowingly breaks the older genmake
225      - automatic generation of all ALLOW_${PKG_NAME} defines
226      - new testreport supersedes older testscript
227    o large number of package inclusion and header cleanups
228    checkpoint51i_pre
229    
230    o new output for adjoin of global ocean vector invariant
231    o fix for checkpoint of thermodynamic seaice and bulk_force
232    o Steph gchem various cleanups
233    
234    checkpoint 51h_pre
235    o fixed some single quotes
236    o modify gchem pkg to be more versatile
237    o modifications to clean up dic pkg
238    o add pkg/cfc
239    
240    checkpoint51g_post
241    o provide links for ARPACK and ADM*TLM
242    o start removing verification/vero/
243    o update AD-related stuff
244      (in particular some IF-statements in model/src/ routines)
245    o adding to verification/global_ocean.90x40x15/ adjoint of
246      vector invariant setup
247    
248    checkpoint51f_post
249    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
250    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
251      of tracer Green's fucntions for ocean inversion project.
252    
253    checkpoint51f_pre
254    o Added on-the-fly spatial interpolation capability
255        "USE_EXF_INTERPOLATION" to pkg/exf.
256      - This is a temporary Cartesian-grid hack until
257        the super-duper ESMF coupler becomes available.
258      - See verification/global_with_exf/README for usage example.
259      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
260        flags and modified pkg/seaice accordingly.
261    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
262        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
263        non-local transport term.
264    
265    checkpoint51e_post
266    o pkg/mom_vecinv:
267      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
268      - add time-ave diagnostic of vorticity advection.
269    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
270    o atmospheric geopotential: - include water vapor effect;
271                                - use p^kappa in p* scaling.
272    o land pkg: read initial state from files.
273    o AIM : add stratospheric drag in the upper level
274    
275    checkpoint51d_post
276    o change function ILNBLNK (=> last non-blank char.) to return zero
277      (instead of the string length) when the string. char is empty
278    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
279    o modif's to restore TAMC compatibility
280      - avoid "_d" constructs in PARAMETER declarations
281      - avoid interrupting lines by comment lines
282    o Use cluster local disks for purely local I/O
283      vs. globally visible disks needed for ctrl stuff
284      (merged from ecco-branch)
285      - new active_file_loc... and mdsio_..._loc routines
286      - affected packages: autodiff, ctrl, grdchk, mdsio
287    
288    checkpoint51c_post
289    o introducing integer flag debugLevel
290      - debLevZero: suppress all output
291      - debLevA: standard
292      - debLevB: equivalent to current debugMode=.TRUE.
293    o introducing pathname variable mdsioLocalDir for mdsio
294      that can be specified at runtime
295      (relevant for cluster I/O to local disk)
296    `
297    >>>checkpoint51b_post
298    adjoint of ptracers
299    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
300    o extended state in checkpoint_lev?, etc.
301    o alternative ctrl/cost with tr1 or ptracer
302    o new comlev1_bibj_ptracers
303    o new ptracers.flow
304    o made ptracers_forcing same as external_forcing_s
305    o added verification for adjoint with ptracers
306      - adm. grdchk fail so far
307      - tlm. grdchk OK
308      - checked tapelev/comlev recomputations: OK
309    <<<checkpoint51b_pre
310    
311    checkpoint51a_post
312    o added code for biogeochemistry package
313      - new pkgs: dic, gchem
314      - new subroutine in ptracers
315    o modify code for biogeo packages
316      - in model/src and pkg/ptracers
317    
318    checkpoint51
319    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
320      - autodiff, ctrl, exf, grdchk, seaice
321      kept separate packages
322      - cost, ecco, obcs
323    o updating verification/internal_wave, verification/lab_sea
324      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
325    
326    checkpoint50i_post
327    o Preparing next differentiable checkpoint and sync
328      of MAIN vs. ecco-branch
329      - 1st step: this one is differentiable
330      - 2nd step: next(! not this) checkpoint will have updated packages
331                  from ecco-branch)
332    
333    checkpoint50h_post
334    o new package "land": provide surface BC for AIM.
335    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
336    o AIM: use true log-P extrapolation for near surface temp (= as in
337        F.Molteni paper) ; update aim.5l_cs output.
338    o New variable in PARM03 for more flexible pickups
339    o somewhat cleaned package initialisation sequence for
340      ctrl/ cost/ ecco/ in packages_... routines
341    
342    checkpoint50g_post
343    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
344      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
345      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
346        made the default because of faster convergence than ADI
347    
348    checkpoint50f_post
349    o exf totally restructured
350      - replaced all exf_set_ routines by one generic exf_set_gen.F
351        and made sure it's still differentiable
352      - split exf_getffields.F into new exf_bulkformulae.F
353      - exf_inscal_/exf_outscal_ suffixes consistent with field names
354      - updated adjoint/makefile and relevant verif. accordingly
355    
356    checkpoint50f_pre
357     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
358          + change Evap over land. (update aim.5l_cs output)
359     o added missing .cvsignores and made uniform across expts
360     o changed configuration of tidal_basin_2d expt
361     o added pkg/debug functions for tracing code in fatal crashes
362     o tidied pkg/monitor to use MONITOR_OPTIONS.h
363     o new fn in pkg/monitor to stop model if solution grows too big
364     o removed lots of single quotes from comments
365    
366    checkpoint50e_post
367    o make KPP work with PTRACERS
368     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
369       nearly a copy of kpp_transport_s
370     - there is no analogue to SurfaceTendencyS, so I have to use
371       gPtr(of the surface layer) instead
372    o add a new platform SunFire+mpi (SunFire 15000) to genmake
373    checkpoint50e_pre
374    
375    checkpoint50d_post
376    o change kpp output from multiple-record state files to single-record state
377      files analogous to write_state.F
378    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
379      analogous to the cg2d-related output.
380    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
381      so that writing to internal file fn (with length 512) fails.
382    checkpoint50d_pre
383    
384    checkpoint50c_post
385    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
386    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
387    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
388    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
389    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
390    
391    checkpoint50c_pre
392    Merging from release1_p13:
393    o bug fix for pkg/seaice dynamic solver
394    o Added SEAICE_initialHEFF to pkg/seaice
395    
396    checkpoint50b_post
397    o store u*,v* in gU,V instead of in guNm1,gvNm1
398    o in order to put the momForcing out of the Adams-Bashforth:
399      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
400      to timestep.F
401    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
402    o re-generate output for highly sensitive test-exp:
403       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
404    
405    checkpoint50b_pre
406    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
407    o corrected CPP option mismatch in exf_Bulk... functions for case
408      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
409    
410    checkpoint50a_post
411    o Bug fix for merging between c50 and KPP.
412      ikey was passed from thermodynamics to kpp_calc via
413      common block rather than being recomputed in kpp_calc,
414      in contradiction with new key itdkey.
415      New key ikppkey created, and tamc.h headers updated.
416    
417    checkpoint50
418    - 2nd step of merge with ecco-branch:
419      merge changes in ecco-branch back into main trunk
420    - bug fix in find_alpha
421    - more storing in gmredi_calc_tensor.F, kpp_routines.F
422    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
423    - merged some sliced AD support routines
424    
425    checkpoint49
426    merged from ecco-branch:
427    o exf:
428      - Enable initialisation of forcing fields to constant
429        (runtime) values.
430      - in exf_getffields.F
431        Reduce i-/j-loop to interior domain, discarding overlaps.
432        That also fixes wrong TAF-key computations for key_1, key_2
433        with bulf formulae.
434      - exf_init.F modify #ifdef for exf_init_evap
435      - exf_getffieldrec.F, ctrl_getrec.F
436        The following INT-usages are not safe:
437          fldsecs  = int(fldsecs/fldperiod)*fldperiod
438          fldcount = int(fldsecs/fldperiod) + 1
439        and were modified.
440    o autodiff: checkpoint_lev...
441      - updated storing for bulk formulae (some arrays were missing)
442      - added state for seaice package
443      - synchronized with main branch
444    o DIVA:
445      Modif.s in
446      - the_main_loop.F
447      - the_model_main.F
448      and added cost_final_restore.F cost_final_store.F
449      o With these changes, it is possible to fully separate
450        the first forward run to compute the cost function (mdthe_main_loop)
451        and adjoint runs over individual DIVA intervals (adthe_main_loop)
452        into separate model executions.
453        This enables better tuning of DIVA to given queue sizes.
454      o Loss of cost function value in consecutive DIVA runs is
455        fixed by storing to 'costfinal' file.
456      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
457        beginning/end of adjoint integration is accounted for.
458      The current changes apply to TAF-1.4.26.
459      TAF has one remaining bug, requiring one manual change
460      (see MITgcm manual).
461    o cal: synchronized between MAIN and ecco-branch
462    
463    checkpoint48i_post
464    o Changes to restore differentiability of code w.r.t. previous tag
465      (mostly adding new routines to make list and replacing
466      pressure by totPhiHyd).
467    o Updated and merged grdchk package
468      - has both ADM and TLM checks
469      - works for single- and multi-proc.
470      - output cleaned
471      - worked successfully for parallel DIVA
472    o genmake:
473      - Adding -platform=SP4
474      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
475    o Modif. for DIVA:
476      ctrl_unpack should not be called in intermediate DIVA interval.
477      (similar thing would apply for active files such as
478      tbar, sbar, psbar, which should not be reinitialised;
479      only relevant for ecco-branch)
480    
481    checkpoint48h_post
482    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
483    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
484    o Added SEAICE_initialHEFF to pkg/seaice
485    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
486    
487    checkpoint48g_post
488    --- EOS:
489    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
490      store total Potential in totPhyHyd for diagnostics & EOS.
491    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
492    --- Pressure/geopotential gradient:
493    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
494    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
495      ( changes results of global_ocean_pressure )
496    o NLFS + z-coord.: add eta*Rho' contribution.
497    o accurate phiHyd when using interface-W at the middle between 2 centers
498     ( changes results of ideal_2D_oce )
499    o includes r* 2nd term in potential gradient.
500    
501    checkpoint48f_post
502    Merging from release1_p12:
503    o Modifications for using pkg/exf with pkg/seaice
504      - improved description of the various forcing configurations
505      - added basic radiation bulk formulae to pkg/exf
506      - units/sign fix for evap computation in exf_getffields.F
507      - updated verification/global_with_exf/results/output.txt
508    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
509      (SBO) core products, including oceanic mass, center-of-mass,
510      angular, and bottom pressure (see pkg/sbo/README.sbo).
511    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
512      to avoid negative values in shallow regions.
513      - updated verification/natl_box/results/output.txt
514      - updated verification/lab_sea/results/output.txt
515    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
516    o Added useSingleCpuIO option (see PARAMS.h).
517    o Updated useSingleCpuIO option in mdsio_writefield.F to
518      work with multi-field files, e.g., for single-file pickup.
519    o pkg/seaice:
520      - bug fix in growth.F: QNET for no shortwave case
521      - added HeffFile for specifying initial sea-ice thickness
522      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
523    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
524      kpp_transport_t.F, forward_step.F, and the_main_loop.F
525    o pkg/seaice:
526      - adjoint-friendly modifications
527      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
528    
529    checkpoint48e_post
530    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
531    o dynamics: change definition of computational domain & adapt mom_fluxform
532      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
533    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
534        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
535        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
536        global_ocean.90x40x15 global_with_exf global_ocean_pressure
537        inverted_barometer solid-body.cs-32x32x1
538      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
539    
540    checkpoint48d_post
541    o in preparation for r*:
542     a) use pre-computed gradient of hydrostatic potential:
543        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
544     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
545        => affects results of glob_oce_pressure (different truncation error)  
546      update output.txt of ideal_2D_oce & global_ocean_pressure
547    
548    checkpoint48d_pre
549    o in preparation for r*:
550      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
551      pass the 2 comp. of the grad. as arguments to momentum S/R.
552      but for the moment, only used if it does not change the results.
553    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
554    
555    checkpoint48c_post
556    Modifications in treatment of initial flux forcing controls
557    to avoid extra storing of flux fields.
558    
559    checkpoint48c_pre
560    o Added tidal_basin_2d experiment (currently 1D!)
561    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
562    
563    checkpoint48b_post
564    o r* coordinate added in #ifdef NONLIN_FRSURF block.
565     (modification to pressure gradient not yet implemented)
566    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
567      (for U & V) that are used for vertical advection of momentum.
568    
569    checkpoint48a_post
570    o In preparation for r*, use temp. array to compute vertical transport
571       in flux-form momentum pkg. => change results of few test-exp.
572      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
573                        lab_sea, natl_box & plume_on_slope
574    
575    checkpoint48
576    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
577    
578    checkpoint47j_post
579    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
580    o moved adexch from forward_step to addummy_in_stepping
581    o added exch in ctrl_map_...
582    o aveFreq.=0. at end of cost_final to avoid overwrite in
583      reverse checkpointing loop
584    o Yet more changes in gmredi:
585      * adgmredi_calc_tensor
586        avoiding all recomputation of gmredi_slope_limit
587      * adgmredi_x/y/rtransport
588        added flag for excessive storing to avoid recomp. of
589        u/v/rtans, dTdx/y/z
590        -> this is not really necessary and very memory-consuming
591      * adgmredi_slope_psi:
592        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
593      * gmredi_slope_limit
594        re-activated full calculation of taperfct for case 'ac02'
595    o updating verification/ adjoints of carbon, global_ocean.90x40x15
596    
597    checkpoint47i_post
598    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
599    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
600      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
601    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
602    o gmredi: fix few bugs.
603    
604    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
605    This will be a good checkpoint to plug into the ecco-branch.
606    o few modif.'s to get latest version adjointed
607      (mainly kick out code in ini_linear_phisurf)
608    o modif's to run adjoint with exactConserv
609    o case GM_BOLUS_ADVEC should be cleaned
610      S/R gmredi_slope_psi should be cleaned
611    o verification/carbon now has exactConserv=.TRUE.
612    
613    checkpoint47g_post
614    o time-average AIM output: becomes independent from statvars time-average
615      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
616    o After TAF bug fix:
617      Tested adjoint of gmredi package.
618      Tests were done with checkpoint47 rather than with latest
619      checkpoint47f_post since the latter is broken for the adjoint
620      verification/carbon/ contains both ADM and TLM gradient checks.
621    Here they are, before they get changed/lost/stolen.
622    Mostly modif.'s to fix numerical sensitivities.
623    Gradient checks OK for
624    - GM_taper_scheme:
625      * clipping
626      * ac02
627      * linear
628      * glw91
629      * dm95
630      * ldd97
631    - GMREDI_OPTIONS:
632      * GM_VISBECK_VARIABLE_K
633      * GM_NON_UNITY_DIAGONAL
634      * GM_EXTRA_DIAGONAL
635      * GM_BOLUS_ADVEC
636    in conjunction with data.gmredi parameters to be checked in
637    in a few minutes under verification/carbon/code/
638    
639    checkpoint47f_post
640    Merging from release1_p10:
641    o modifications for using pkg/exf with pkg/seaice
642      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
643        and SEAICE_EXTERNAL_FLUXES
644      - pkg/exf CPP options EXF_READ_EVAP and
645        EXF_NO_BULK_COMPUTATIONS
646      - usage examples are Experiments 8 and 9 in
647        verification/lab_sea/README
648      - verification/lab_sea default experiment now uses
649        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
650    
651    checkpoint47e_post
652    o created a tag prior to creating a branch
653    
654    checkpoint47d_post
655    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
656      at the bottom boundary had an erroneous half slip boundary condition
657    o added bottom drag and no slip boundary condition capabilities to
658      oceanic pressure coordinates code
659    o added new verification experiment global_ocean_pressure, this experiment is
660      also described in the tutorial section of the manual
661    checkpoint47d_pre
662    
663    checkpoint47c_post
664    o Added a verification experiment for a global cubed-sphere ocean run
665      -  verification/global_ocean.cubed32x32x30
666      -  uses pkg/therm_seaice and pkg/bulk_forcing
667    
668    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
669    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
670      when using P-coordinate; only implemented for atmospheric config.
671    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
672      NOTES: requires option NONLIN_FRSURF to be "#define".
673    o update advect_xz/results/output.txt (left from checkpoint44g_post)
674    
675    checkpoint47b_post
676    Merging from release1_p9:
677    o pkg/seaice
678      - removed GOTO's and added taf directives
679      - double precision constants to reduce the g77 (Linux)
680        to F77 (SGI) differences reported in release1_p8
681    o tools/genmake
682      - added SGI options
683    o verification/testscript
684      - updated to that of checkpoint47a_post
685    o verification/global_ocean.90x40x15/input/eedata
686      - modified for SGI f77 compatibility
687    o verification/lab_sea
688      - added description of sea-ice model
689      - added missing matlab routines
690      - added test of thermodynamics parallelization
691    
692    checkpoint47a_post
693    o new pkg: aim_v23
694     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
695       for now, keep the same surface forcing as before.
696     - Part-Cell implemented into AIM; check that Heat & Water are conserved
697     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
698     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
699    o add diagnostic of surface correction term in monitor output
700    
701    o bulk_force and therm_seaice
702    - Two packages:  bulk_force (Bulk forcing)
703      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
704    - Earlier integration from Stephaine Dutkiewicz
705      and Patrick Heimbach.
706    - Two ifdef statements for compile time,
707       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
708    
709    checkpoint47
710    differentiable version of checkpoint46n_post
711    o bug fix in quasihydrostaticterms
712    o * "clean" adjoint code (in terms of extensive recomputations)
713        can now be obtained for all GMREDI options (i.e. for
714        - GM_VISBECK_VARIABLE_K
715        - GM_NON_UNITY_DIAGONAL
716        - GM_EXTRA_DIAGONAL
717        - GM_BOLUS_ADVEC )
718      * However, wrong gradient check problem remains unsolved.
719      * New CPP options have been introduced for different
720        tapering schemes
721    o external_fields_load now part of differentiation list
722    o pressure needs multiple storing;
723      would be nice to have store_pressure at beginning or
724      end of forward_step, e.g. by having phiHyd global (5-dim.)
725      (NB: pressure is needed for certain cases in find_rho,
726      which is also invoked through convective_adjustment).
727    o recomputations in find_rho for cases
728     'JMD95'/'UNESCO' or 'MDJWF' are OK.
729    o #define ATMOSPHERIC_LOADING should be differentiable
730    o ini_forcing shifted to begining of initialise_varia
731    o Incorporating QNVS line search routines into MITgcm
732      (this is separate code, and therefore not under pkg)
733      lsopt/, optim/
734    o Updated verification/carbon/
735      - #define GM_VISBECK_VARIABLE_K
736      - GM_taper_scheme    = 'ldd97'    
737    
738    checkpoint46n_post
739    Merging from release1_p8:
740    o verification/natl_box:
741      updating new external_fields_load routine
742    o New package: pkg/seaice
743      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
744      The sea-ice code is based on Hibler (1979-1980).
745      Two sea-ice dynamic solvers, ADI and LSR, are included.
746      In addition to computing prognostic sea-ice variables and diagnosing
747      the forcing/external data fields that drive the ocean model,
748      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
749      The implied surface heat flux is then stored in variable
750      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
751      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
752      non-local transport term.  Because this call precedes model
753      thermodynamics, temperature under sea-ice may not be "exactly" at
754      the freezing point by the time theta is dumped or time-averaged.
755      N.B.: fairly large differences in accuracy occur across
756            different platforms/compilers; comparison between
757            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
758            generated output gives:
759       T           S           U           V
760      C D M    c        m  s        m  s        m  s        m  s
761      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
762      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
763      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
764    
765      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
766    o GAD:
767      - generated new common blocks to account for call of
768        same gad routines with differing traceridentities
769        (needed to modify tracerIdentity indices in GAD.h)
770      - generated separate common blocks for case useCubedSphereExchange
771        (Department of Futurology)
772      - parameter lists to gmredi_?transport: added tracerIdentity
773      - added new key indices to tamc.h
774    o external_fields_load:
775      - added this routine to TAF list
776      - needed to make some common blocks global and additional storing
777        along the same lines as exf package (checkpoint_lev?_directives.h)
778    o exf:
779      updated external forcing package
780      - bug fixes carried over from ecco-branch
781        (missing OBCS_OPTIONS.h in two routines)
782      - enable easy to use "no forcing".
783      - added exf I/O for atmospheric loading
784      - added exf I/O for runoff data
785      - transfered scaling between exf <-> MITgcm to exf namelist
786    o Adding new verification experiment global_with_exf.
787      This verification experiment is almost identical to the
788      global_ocean.90x40x15 experiment, except that it uses
789      the exf (and cal) package instead of the
790      external_fields_load routine (cf README file).
791    
792    checkpoint46m_post
793    o modified testscript to return -- when there are no lines of "%MON" output
794    o added new flag "quasiHydrostatic" for QH mode
795      and new routine quasihydrostaticterms()
796    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
797      New routine: mom_u_coriolis_nh()
798    o fixed sign of non-hydrostatic metric terms in u and v equations.
799      Depend on correct sign of gravitySign.
800    o added work.pc* to .cvsignore in aim directories using ifc
801    o introduced flag for controllin non-hydrostatic metric terms
802    o removed gravitySign from PARM04
803    o switched to g77/ifc from pgf77 in aim experiments
804    
805    checkpoint46l_post
806    o made convective adjustment work with pressure coordinates:
807     - changed the direction of k-loop in convective_adjustment.F for the
808       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
809     - adjusted the reference pressure k-index in convective_adjustment.F
810     - adjusted the convection condition in convect.F (in analogy to
811       calc_ivdc.F)
812     - convective_adjustment no longer computes anything on the halos
813     - removed the warnings about negative salinity from find_rho.F and
814       find_alpha.F; instead the new routine look_for_neg_salinity, called
815       at the beginning of find_rho, find_alpha, and find_beta, does a
816       check of the entire slice, if CPP-option
817       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
818    checkpoint46l_pre
819    
820    checkpoint46k_post
821    o fixed the verification/global_ocean.90x40x15 experiment:
822     - new bathymetry (the world according to A., JMC, and M.)
823     - new initial fields and forcing fields (*.bin files)
824     - new POLY3.COEFFS (for the next release one should switch to a full
825       equation of state: JMD95P or MDJWF)
826     - fixed several errors and redundancies in the data file
827     - experiment uses looped cells
828     - added matlab directory with diagnostic scripts for plotting of output
829    
830    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
831     - read AIM physics parameters from a file (data.aimphys)
832     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
833    
834    checkpoint46j_post
835    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
836    o move wVel computation at the end of the time step, in S/R integr_continuity
837    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
838    o update timeave pkg for wVel diagnostic.
839    checkpoint46j_pre
840    
841    checkpoint46i_post
842    o Clean up AIM package (and keep the results unchanged):
843      include CPP_OPTION and use IMPLICT NONE in all routines ;
844      declare all the variables _RL ; use _d 0 for all numerical constants.
845      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
846    
847    checkpoint46h_post
848    o cleaned up the use of rhoNil and rhoConst.
849      - rhoNil should only appear in the LINEAR equation of state, everywhere
850        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
851        and the dynamical equations are all divided by rhoConst
852    o introduced new parameter rhoConstFresh, a reference density of fresh
853      water, to remove the fresh water flux's dependence on rhoNil. The default
854      value is 999.8 kg/m^3
855    o cleanup up external_forcing.F and external_forcing_surf.F
856      - can now be used by both OCEANIC and OCEANICP
857    checkpoint46h_pre
858    
859     Added code to convert surface volume flux (fresh water) into
860     a mass flux when using P coordinates in the ocean (OCEANICP).
861     Note: It assumes you have set rho0=rhoConst=density of fresh water.
862    
863    checkpoint46g_post
864    o Include a new diagnostic variable phiHydLow for the ocean model
865      - in z-coordinates, it is the bottom pressure anomaly
866      - in p-coordinates, it is the sea surface elevation
867      - in both cases, these variable have global drift, reflecting the mass
868        drift in z-coordinates and the volume drift in p-coordinates
869      - included time averaging for phiHydLow, be aware of the drift!
870    o depth-dependent computation of Bo_surf for pressure coordinates
871      in the ocean (buoyancyRelation='OCEANICP')
872      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
873        Theta, Salinity, and Pressure in the parameter list. This routine is
874        presently contained in find_rho.F. This routine does not give the
875        correct density for 'POLY3', which would be a z-dependent reference
876        density.
877    o cleaned up find_rho
878      - removed obsolete 'eqn' from the parameter list.
879    o added two new verification experiments: gop and goz
880      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
881    checkpoint46g_pre
882    
883    checkpoint46f_post
884    o Enable tangent linear (forward mode) gradient checks:
885      - extended active file handling to g_... files
886      - added TANGENT_SIMULATION to theSimulationMode
887      - extended grdchk package accordingly
888    o added tangent linear setup in verification/carbon/code_ftl
889    o added adjoint setup in verification/front_relax/code_ad
890    
891    checkpoint46e_post
892    o Added new equation of state -> MDJWF
893      - EOS of McDougall et al., 2002, JAOT, submitted
894      - caveat: the equation of state is only valid for a smaller (more
895        realistic?) range of values than JMD95P/Z and UNESCO
896      - added masks to the calculation of pressure in store_pressure
897      - added more check values for density in check_eos (ini_eos.F), some of
898        the old check values are out of the range of the MDJWF-eos, so don't
899        expect perfect matches for those
900    checkpoint46e_pre
901    
902    checkpoint46d_post
903    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
904      'OCEANICP', also initialised field pressure correctly in ini_eos in the
905      case of pressure coordinates. eosType='JMD95Z' in
906      combination with buoyancyRelation='OCEANICP' now causes an error.
907    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
908      in find_alpha/beta.
909    checkpoint46d_pre
910    
911    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
912      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
913    
914    checkpoint46c_post
915    o Changes necessary for ocean in p-coordinates
916     -  Added new buoyancy relation = 'OCEANICP'
917     -  Added new parameters = gravitySign (this used to be contained inside
918        the factor dRdZ which I added when we first switched to R coordinates).
919     X GM/Redi is not compatible (yet)
920     X bottom drag and no-slip need to be debugged.
921    checkpoint46c_pre
922    
923    checkpoint46b_post
924    o Added new equation of state -> JMD95Z and JMD95P
925      - EOS of Jackett and McDougall, 1995, JAOT
926      - moved all EOS parameters into EOS.h
927      - new routines ini_eos.F, store_pressure.F
928    o Added UNESCO EOS, but not recommended because it requires
929      in-situ temperature (see JMD95)
930    o Modified formatting for knudsen2.f in utils/knudsen2 and added
931      unesco.f to be used with POLY3
932    checkpoint46b_pre
933    
934    checkpoint46a_post
935    o Added (atmospheric) pressure loading
936      - new field in FFIELDS.h, etc...
937      - new cpp flag ATMOSPHERIC_LOADING
938    o Changed hFacC to _hFacC in calc_phi_hyd.F
939    o Added SHORTWAVE_HEATING to some files for consistency
940    checkpoint46a_pre
941    
942    checkpoint46
943    further merges from release1_p5
944    o new ctrl package
945      - adopted from ECCO environment to enable optimization
946      - added Eliassen Palm fluxes to controls
947    o added Eliassen Palm flux controls to gradient check package
948    o cost package
949      - Compatible with new ctrl package
950      - added Eliassen Palm cost hooks
951      - modif's of existing cost functions
952    o Adjoint-related bug fixes in kpp:
953      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
954      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
955    o autodiff package
956      - flow directives:
957        + new for S/R do_the_model_io
958        + enhanced for S/R checkpoint
959        + new gmredi.flow
960      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
961        disable adcommon.h/g_common.h by default.
962      - fixed problem for adjoint of global_max
963    o modified verification/carbon/
964    o New setup for adjoint of global_ocean
965    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
966    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
967    o incorporated hooks for sponge layer code (external_forcing.F)
968    
969    checkpoint45d_post
970    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
971    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
972      (affects plume_on_slope "cg2d" output)
973    o add new parameter deltaTfreesurf for free-surface time stepping
974    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
975    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
976    o change phiMin in exp1 (to agree with documentation)
977    o add new flags:
978     - T,S forcing inside/outside Adams-Bashforth
979     - turn off temp,salt advection and/or forcing
980     - for each tracer, define internal flag for multiDimAdvection & A-B
981    o monitor: change definition of KE to check conservation of Energy
982    
983    checkpoint45c_post
984    o Removed f90 comments ("!")
985    o Modified initialisations to enable exf package for MITgcm
986      (without invoking ECCO_PACKAGE).
987    o modifications to gradient check package (Martin Losch)
988      - enable centered differences
989      - modified format of standard output
990    
991    checkpoint45b_post
992    o cleaned exchange calls in cg2d
993    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
994    o included CPP option SINGLE_LAYER_MODE in thermodynamics
995      to configure barotropic setup (Martin Losch)
996    o moved some initialisations within bi,bj loop in dynamics
997      (TAF flow dependency)
998    o in initialise_varia, moved call packages_init_variables
999      before convective_adjustment_init
1000      (corresponding adjustment of TAF tape initialisation).
1001    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1002    
1003    checkpoint45a_post
1004    o compute Rho over the whole domain (extend iMin,jMin indices)
1005    o specific exchange for X-slice domain (case Ny=1)
1006    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1007    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1008    
1009    checkpoint44h_post = checkpoint45
1010    o Fix to restore differentiability:
1011      place at which packages_init_variables is called in
1012      initialise_varia is crucial for reverse control flow.
1013    o modifications in GMRedi to enable stable adjoint
1014      (corresponding modif's in thermodynamics, dynamics)
1015    o added missing hook for sponge layer code in external_forcing
1016    o modified test cost functions
1017    o storing in gad_advection (plus removal of write(0,*)!
1018    o missing headers TR1.h added in convective_adjustment routines
1019    o errorMessageUnit set non-equal zero in eeboot
1020      (conflict on some platforms, e.g. IBM SP3)
1021    o modified carbon verif.
1022    
1023    checkpoint44h_pre
1024    o vertical grid option: allow to put the Interface at the middle between
1025      2 cell-centers ; replace delZ in pkg/kpp by drF.
1026    o GM Advective form: Tracers are advected using the residual transport (=
1027      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1028    
1029    checkpoint44g_post
1030    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1031      results) ; ifdef missing in thermodynamics.F
1032    
1033    checkpoint44f_pre,checkpoint44f_post
1034    o added PTRACERS package
1035      This allows an arbitrary number of passive tracers to be integrated
1036      forward simultaneously with the dynamicaly model.
1037      + Implemented so far:
1038        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1039        - I/O and checkpointing
1040        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1041      + Not implemented so far:
1042        - KPP
1043        - OBCS
1044      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1045        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1046        line in data.pkg.
1047      + This package is disabled by default since it increases storage.
1048    
1049    
1050    o testscript: added -cleanup option
1051    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1052                 b) enable to filter 2D fields.
1053    
1054    checkpoint44e_pre,post
1055    o re-wrote convective adjustment to use pre-calculated weights
1056      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1057      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1058      Original calls to convect() still in place.
1059    
1060    chkpt44d_pre,post
1061    o added missing EXCLUDE_MONITOR flags
1062    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1063      (incompatible typ in MIN/MAX expressions caused problems
1064      on IBM SP3)
1065    o in genmake added variable MAKEDEPEND
1066      plus resetting for case SunOS
1067    o added timer_stats.c routine for IBM SP3
1068    o removed variables in dynamics
1069    !!! I forgot to create tag chkpt44d_pre !!!
1070    !!! But chkpt44d_pre = chkpt44c_post    !!!
1071    
1072    o real fresh water flux implemented with non-linear free-surface.
1073    
1074    chkpt44c_pre,post
1075    o few fix (mask in shap_s2, EmPmR in external_field_load,
1076      USE_NATURAL_BCS in solve_for_P);
1077    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1078    
1079    checkpoint44b_pre/_post
1080    o merge of relevant stuff from the ecco-branch:
1081      - genmake: removed $S64 overwrite for case SunOS
1082      - pkg/exf: update and corrections for field swapping and obcs
1083      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1084                  harmonized between ECCO and MITgcm
1085      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1086                      updated checkpointing_lev... lists for obcs
1087      - model/src: minor changes in forward_step, plot_field
1088                   added directive for divided adjoint in the_main_loop
1089      - pkg/mdsio: added mdsio_gl_slice
1090    
1091    o check parameters & config (chkpt44a_pre,post)
1092    o OBC and NonLin_FrSurf.
1093    
1094    checkpoint44
1095    o fix bug in mom_vi_del2uv
1096    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1097    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1098    o update AIM experiments (NCEP input files)
1099    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1100    o added some stuff for AD
1101    
1102    checkpoint43
1103    o added two new advection tests
1104    o added global 4x4 degree ocean test
1105    o added test of H&S94 with free surface on cube
1106    o some final mods for gradient check, adjoint,...
1107    
1108    checkpoint42
1109      Fixed AD-related problems:
1110    o Store directives up-to-date with re-arranged Adams-Bashforth
1111      (mainly thermodynamics.F)
1112    o New store directives for multi-dim. advection schemes
1113      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1114      * new common block and key passkey
1115      (mainly gad_advection.F)
1116    o Modified store directives for split of dynamics/thermodynamics
1117      for the case ALLOW_KPP
1118    o Cleaned argument list for timestep_tracer.F
1119    
1120    checkpoint41
1121    o re-formatted/added comments in prologues of key subroutines
1122      to work with protex
1123    
1124    checkpoint40
1125    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1126    o added FLT (floats) package from Arne along with demo. experiment
1127    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1128      implementation of forward-in-time forcing terms
1129    o more mods for non-linear free-surface including new variable
1130    o modified multi-dim method to work on cube
1131    o bug fix in KPP (from DM)
1132    
1133    checkpoint40pre9
1134    o added DST advection schemes
1135    o fix MPI bug on SGI's
1136    o modifications for non-linear free-surface
1137    o fixed conditionals for fixed flow/passive tracer only mode
1138    o added tension/strain form of stress tensor
1139    o changes to commenting of arguments for TAF/TAMC
1140    o added/updated many matlab scripts
1141    o added multi-dimensional advection method for tracers
1142      
1143    checkpoint40pre8
1144    o new package rw/
1145      Added method for dumping intermediate local arrays:
1146      mdsio_writetile - same as mdsio_writefield except works from inside
1147                        bi,bj loop
1148      mdsio_writelocal - same as mdsio_writetile except works for local
1149                         arrays
1150      write_local_r? - higher-level wrapper for mdsio_writelocal
1151      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1152      Example given at end of mom_vecinv.F that dumps some local arrays.
1153    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1154      control flux-form versus vector invariant code.
1155      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1156      or genmake -DISABLE ...
1157    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1158      (additional storing is now needed for case vecinv;
1159      currently nothing implemented to switch this storing off
1160      in case fluxform is used since no CPP flag available).
1161    
1162    checkpoint40pre7
1163    o bug fix in dynamics.F
1164      calc_viscosity called before k=1,Nr loop.
1165    o added some #ifdef's ALLOW_PASSIVE_TRACER
1166    o cleaned initialisations in ctrl_map_ini
1167      related to TAF
1168    
1169    checkpoint40pre6
1170    o split dynamics into thermodynamics & dynamics
1171    o corresponding split of calc_diffusivity into
1172      calc_diffusivity, calc_viscosity
1173      (kpp_calc_diff, kpp_calc_visc).
1174    o Added diffkr, kapgm to control variables
1175    o bug fix in gmredi_slope_limit for ldd97
1176    
1177    checkpoint40pre5
1178    o proper initialization of Adams-Bashforth time stepping
1179      + uses forward step for very first step of model (iter=0)
1180    o re-generated *all* output since almost all output is modified by this
1181      change (sorry but we've been putting this one off for about 2 years)
1182      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1183        *not* regenerated since they are already out of date and I don't
1184        want to create the impression that they are suddenly working.
1185    o removed KAP stuff for DEC's
1186    o modified/added many .cvsignore files in */code and */input
1187    o added new expt "solid-body.cs-32x32x1"
1188      + this uses an alternative form of ini_curvilinear_grid.F which
1189        is not necessarily any better than the current one...
1190    
1191    checkpoint40pre4
1192    o added re-initialisations of utrans,vtrans,rtrans in
1193      calc_common_factors which are crucial for TAF.
1194    o extended iMin,jMin range for calc_common_factors,
1195      calc_diffusivity
1196    o added option ALLOW_PASSIVE_TRACER
1197    o a few minor updates and fixes
1198    
1199    checkpoint40pre3
1200    o created calc_gtr1.F for gad package
1201    o split the_main_loop and re-introduced forward_step
1202    o some recomputations of nIter0 for TAMC
1203    
1204    checkpoint40pre2
1205    o Updated to latest branch of AJA, JMC
1206    o Added gradient check package
1207    o Added routines for passive tracer handling
1208    o Added carbon sequestration sensitivity experiment
1209    
1210    checkpoint39
1211     o Modifications and fixes to support TAMC
1212       (mainly missing or wrong directives)
1213     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1214       in addummy_in_stepping
1215     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1216     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1217     o Included following packages:
1218       cal: calendar
1219       exf: external forcing
1220       ecco: essential routines to control use of cal, exf
1221             (NB: this is not the full ECCO environment)
1222     o disabled some packages by default in genmake
1223    
1224    checkpoint38
1225     o see notes_c37_adj.txt
1226     o corrected wrong layer index in external_forcing_t
1227     o replaced the_main_loop/forward_step by the_main_loop
1228     o removed forceoutput from write_state
1229       (replaced criteria for initial/final state)
1230     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1231    
1232    checkpoint37
1233     o mdsio.F routine split and packaged in pkg/mdsio
1234       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1235        used unless genmake -disable=mdsio)
1236     o allow a more precise surface-geopotential gradient for the atmosphere
1237       taking into account the change in space of Alpha (=1/rho) at the surface.
1238     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1239       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1240     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1241       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1242       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1243     o Time-Average diagnostics defined as a pseudo package "timeave".
1244     o pickup files : old pickup (before c35) did not work with new code (c35
1245       and after) unless activating 2 commented lines in initialise-varia.
1246     o Non-Hydrostatic pickup file Pb fixed.
1247     o bug with Rigid-lid version (since c35) fixed.  
1248    
1249    checkpoint36
1250     o implement Crank-Nickelson barotropic time-stepping
1251     o recover Time-Average diagnostics
1252     o fix Pb in checkpoint (PR#19)
1253     o AIM become a standard package ; clean unused CPP_kees
1254    
1255    checkpoint35
1256     o subtantial rewrite of dynamics.f
1257     o allows staggered time-stepping
1258     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1259     o added bottom drag (linear + quadratic)
1260    
1261    checkpoint34
1262     o Modified exchange routines for correct reverse simulation.
1263     o Added verification output to comply with bug fix in impldiff.F
1264       as of c33 (exp2, natl_box).
1265     o Corrected store directives in dynamics.F
1266     o Corrected array boundaries in impldiff.F
1267     o Corrected array dimensions in gmredi.
1268       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1269     o Added routine GLOBAL_SUM_INT to global_sum.F
1270     o Added mdsio_gl.F for ECCO purposes.
1271    
1272    checkpoint33
1273     o Fixed bug in lower BC in impldiff.F
1274     o Fixed confusion about units of forcing arrays in FFIELDS.h
1275       namely Fu,Fv,Qnet,Qsw,EmPmR:
1276       - Removed verification/natl_box/code/external_fields_scale.F
1277         (did not differ from that in model/src)
1278       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1279         (see FFIELDS.h for description)
1280       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1281         kpp_calc.F and kpp_transport_t.F
1282       - Removed model/src/external_fields_scale.F and calls to it
1283       - verification/natl_box uses flux data with "atmospheric" sign so
1284         a special version of external_fields_load.F is used to
1285         change the data as it's read in. This way, the arrays
1286         have the right units and signs at all times tha a user could
1287         possibly use them.
1288     o Corrected genmake to delete a temporary file during configuration
1289    
1290    checkpoint32
1291     o Scaling of forcing fields moved from external_forcing.F to
1292       external_fields_scale.F, called directly after loading fields.
1293     o Surface relaxation terms added to surface tendency fields in
1294       extra subroutine.
1295     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1296       fields.
1297     o Changes in GMRedi to comply with packaging structure.
1298     o Modifications and bug fixes in KPP package.
1299     o Verification experiment for KPP added (verification/nat_box/)
1300    
1301    checkpoint31
1302     o Packages interface brought in line with defined standard
1303       -> new routines packages_...F
1304       -> changes in initialise_fixed.F, initialise_varia.F
1305       -> enables initialisation interface for ECCO package
1306     o Rescaling of external forcing fields immediately after read
1307       (removed from external_forcing.F)
1308       -> new: surface_fields_scale.F
1309       -> affects ini_foorcing.F, external_fields_load.F
1310     o Computation of surface tendencies before tendency updates.
1311       -> new: external_forcing_surf.F
1312     o Change of variable names useGMRedi, useKPP, useECCO
1313     o Further changes in dynamics.F, impldiff.F for TAMC
1314     o Tested for experiments 0, 2, 4.
1315       - not yet tested for GMRedi.
1316       - not yet tested for KPP.
1317    
1318    checkpoint30
1319     o Updates for OBCs
1320     o New experiment for test OBCs (internal_wave)
1321     o New output.txt in verification/exp4/results/
1322     o Updates for KPP: calculation of viscosity corrected, new variables
1323       kpp_dumpFreq and kpp_taveFreq
1324     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1325       and entry for T90 in genmake
1326    
1327    checkpoint29
1328     o packaged KPP and GM/Redi
1329    
1330    checkpoint28
1331     o Corrected initialization of hFacMin for difference vertical coordinates
1332     o Modified calculation of partial cell thickness to more robust algorithm
1333     o config_summary.F: replaced write_1D_... by write_0D_...
1334       read_write.F: added subroutines write_0D_...
1335     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1336       included some initialisations required for TAMC.
1337     o routine calc_isoslopes: modified sqrt computation to make it
1338       differentiable for zero argument.
1339     o routines dynamics, impldiff:
1340       included store directives and tape key computations required for TAMC.
1341     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1342    
1343    checkpoint27
1344     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1345       formulation works properly with variable resolution.
1346     o restructured the calling tree between the_model_main() and dynamics()
1347     o split initialise() into initialise_fixed() and initialise_varia()
1348     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1349       in new routine ini_psurf()
1350    
1351    checkpoint26
1352     o moved some #ifdef in optional routines to encompass everything
1353       except the argument declarations. This was using up some memory.
1354     o fixed macros like _ADT to work with both versions of Linux cpp
1355     o cleaned up some unused and uninitialized variables
1356       (helps when debugging with strict compile options)
1357     o split up CPP_EEOPTIONS.h into options and macros
1358       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1359     o patch for 2 processor JAM mode
1360    
1361    checkpoint25
1362     o updates for OBCs and NH
1363     o dramatically reduced memory usage
1364     o added "JAM" routines for use on Artic network
1365     o parameterization of convection by implicit vertical diffusion
1366     o added a diagnostic of convective index
1367     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1368       (this is was partly for OBCs and NH but also in anticipation of
1369        an explicit free-surface option)
1370     o initial state input files for U and V
1371    
1372    checkpoint24
1373     o Removed some spurious "REAL"s
1374     o Updated KPP to latest version from JPL
1375     o Added a COS(latitude) in horizontal viscosity
1376    
1377    checkpoint23
1378     o Added del^4 diffusion for salt and temperature
1379     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1380    
1381    checkpoint22
1382     o Made many small changes: implicit none, format(i5), etc...
1383     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1384    
1385    checkpoint21
1386     o Introduced new I/O package that supports direct-access records (mdsio.F)
1387     o Split-up mid-level I/O routines
1388     o Updated input data for experiments 0,1,2,4 and 5
1389     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1390    
1391    checkpoint20
1392     o Tidied up open-boundaries some more
1393     o Added non-hydrostatic code
1394     o Fixed some input data
1395     o Modified MPI start-up to work in "coupled" context.
1396    
1397    checkpoint19
1398     o Tidied up directory structure for verification experiments.
1399     o Added new code for open boundaries.
1400     o Corrected advective terms near boundaries.
1401     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1402     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1403     o Split default parameters out of ini_parms.F into set_defaults.F.
1404    
1405    checkpoint18
1406     o Further changes for optional code generation with
1407       CPP - ugh!
1408    
1409    checkpoint17
1410     o Beginning to incorporating modularity
1411       for supporting atmos. and ocean configs.
1412     o Small changes for TAMC complinace
1413     o New ultra simple test case. Barotropic box
1414       configuration "exp0".
1415    
1416    checkpoint16
1417     o Minor changes to exchange routines to support
1418       accumulation in reverse mode. Adjoint of an
1419       assignment is an addition.
1420     o Changes to support compilation by TAMC (LR(1)
1421       syntax) and by g77 under Linux ( 72 character
1422       limit ).
1423    
1424    checkpoint15
1425     Rewrote exchange routines to allow
1426     o General tile <-> tile connectivity.
1427     o TAMC reverse mode flag ( is this really needed? )
1428     o Variable width overlap and exchange region widths.
1429     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1430       shmput/shmget, VIA, SYSV shmem and every other cool
1431       communication method.
1432    
1433    checkpoint14
1434     Consistent isomorphism chages made. These allow dynamical core
1435     to support both pressure and meters as a vertical coordinate.
1436    
1437    checkpoint13
1438     Release which corrects global_max problem and a couple
1439     of KGM time-averaging diagnostic errors. Also contains
1440     a double-gyre experiment setup as well as the baseline
1441     4 degree global template. The double gyre template is
1442     organised to allow it to be applied automatically to
1443     the baseline configuration.
1444    
1445    branch-point-rdot
1446     A few tidy-ups have been made bt the real point of this
1447     check-point (excuse the pun) is to allow a branch to be
1448     made for the purposes of adding the rDot alterations.
1449     I don't want to commit the rDot to the main-trunk until
1450     we've actually tested it...
1451    
1452    checkpoint12
1453     Tidy up and added generic genmake script (formerly
1454     configure script).
1455     Released to testers.
1456    
1457    checkpoint11
1458     Re-arranged initialise() and introduced ini_vertical_grid()
1459     and ini_masks_etc().
1460    
1461    checkpoint10
1462     Introduced the configure script.
1463     Separated out the diags package.
1464     Added template for writing time-averages of tile/intermediate quantities.
1465     Updated SIZE.h in exp2 and made the data big-endian.
1466    
1467    checkpoint9
1468     MPI fix. Filename changes (meta/data). salbin*y stuff.
1469     General tidy-up.
1470     SST.bin SSS.bin added to verification/exp2
1471    
1472    checkpoint8
1473     Inludes time-dependant forcing and time-averaging.
1474     Works at 4x4 and 2.8125x2.8125 global
1475    
1476    checkpoint7-4degree-ref
1477     Branch from checkpoint7. Released for application to
1478     global modeling and general modeling - process studies, regional
1479     model etc..
1480     Configured for verification/exp2 - 4 degree global, two process.
1481    
1482    checkpoint7
1483     Created by cnh
1484     Simple 4 degree global simulation
1485     configuration.
1486     Includes climatological wind,
1487     hydrography, bathymetry etc
1488     Does not include Heat Flux and E-P
1489    
1490    checkpoint6
1491     Created by cnh
1492     merged checkpoint5 with CD and
1493     spherical polar code.
1494     Still some problems with GM Redi
1495     abd full topography.
1496    
1497    checkpoint5
1498     Created by AJA
1499     contains updates to GM Redi
1500     and reordered timestepping loop
1501     for Implicit Diffusion.
1502    
1503    checkpoint4
1504     Created by cnh
1505     Contains memory saving macros ( _rdxc etc..) for when
1506     grid variations are limited.
1507     Contains polynomial coeffs for EOS and knudsen program
1508     for generation.
1509    
1510  checkpoint3  checkpoint3
1511   Created by cnh   Created by cnh
1512   Added extra flags for runtime options   Added extra flags for runtime options
# Line 20  checkpoint1 Line 1525  checkpoint1
1525   Restructured kloop in dynamics.F   Restructured kloop in dynamics.F
1526   Added non-linear EOS   Added non-linear EOS
1527    
1528  baseline - Original checked in code  baseline
1529     Original checked in code
1530    

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