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revision 1.8 by adcroft, Wed Jul 1 22:49:29 1998 UTC revision 1.241 by dimitri, Thu Jan 15 03:38:22 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o genmake2: add build & execute test for NetCDF code
7    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
8      old grid files, moved CPP_EEMACROS.h to pkg/exch2
9    o added useSingleCPUIO flag to monitor.F and mon_out.F
10    o added temporary hack for sea-ice dynamics on the cube:
11      metric terms are ignored and it is assumed that
12      there is no sea-ice on cube faces 1, 2, 4, and 5.
13    
14    checkpoint52f_post
15    o added exch2 cube routines to pkg/exch2
16    o modified hs94.cs-32x32x5 to use it
17    o added new grid files to hs94.cs-32x32x5
18    checkpoint52f_pre
19    
20    checkpoint52e_post
21    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
22      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
23    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
24      to work with implicit vertical advection and AB ;
25    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
26    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
27     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
28    checkpoint52e_pre
29    
30    o fix bug in impldiff when Nr=1 or Nr=2.
31    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
32    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
33    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
34      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
35    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
36    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
37    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
38    
39    checkpoint52d_post
40    o re-tiled many expts to allow comparison in multi-processor mode
41      - updated output accordingly
42      - changed hs94.128x64x5 to use intial T from file rather than use the
43        random number generator
44    o add infrastructure in model routines for fizhi and gridalt packages
45    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
46    o changes to permit hi-res, cubed-sphere, configuration
47      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
48      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
49      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
50        of surface winds for the cube
51      (A verification experiment, based on global_ocean.cs32x15, but with
52       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
53       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
54       complete with example surface forcing files and matlab scripts to look
55       at the output and compare it with that of global_ocean.cs32x15.)
56    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
57       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
58       to conform to the common rule.
59    o check-in the first version of the coupler + interfaces for multi-components
60       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
61       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
62       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
63       - ocean and atmos. share the same horizontal grid (no interpolation).
64       - exchanges between component and coupler is done in forward_step
65    o new verification experiment, cpl_aim+ocn:
66       coupled ocean - AIM atmosphere on cs32 grid.
67    
68    checkpoint52d_pre
69    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
70    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
71    
72    checkpoint52c_post
73    o Fixing OPTIONS files for use of exf:
74      - ALLOW_ECCO not needed
75      - ECCO_CPPOPTIONS.h should not be included from
76        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
77        as has been the case in the past
78      - All cal/exf related options are currently set in
79        single header file. Should remain so until we
80        agree on a consistent new policy.
81    o Removed all CPP options for cal package.
82      cal has no more CPP options.
83    o modified STOREs in GAD_ADVECTION
84    o corrected key comp. for passkey
85    
86    checkpoint52b_post
87    o new version: "thsice" of thermodynamic sea-ice pkg:
88     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
89     - modify fluxes but do not change theta directly;
90     - light cleaning of bulk_force pkg (still needed with thsice).
91     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
92       + output_thsice.txt to test thsice & bulk_force pkgs.
93    o put back grid & coriolis monitor output.
94    checkpoint52b_pre
95    
96    o call "do_the_model_io" at the beginning (=> dump initial state)
97    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
98    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
99      (need info on NUMBER_OF_PTRACERS)
100    o missing PTRACERS headers in some routines
101    o default tamc.h in pkg/autodiff supposed to crash
102      to ensure proper customization
103    
104    checkpoint52a_post
105    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
106      - moved surfaceTendencyTice from pkg/seaice to main code
107      - subroutine FREEZE_SURFACE now limits only surface temperature
108        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
109        => new output.txt for global_ocean.cs32x15 & global_with_exf
110      - keep the old version of FREEZE for backward compatibility;
111        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
112      - corresponding modifs for TAF directives
113    o added surface flux output variables to TIMEAVE_STATVARS
114    o time-averaged output for pkg/ptracers
115    o fix problem with ECCO-related divided adjoint
116      snapshot file was missing some ad-variables,
117      but no warning issued by TAF
118    
119    checkpoint52a_pre
120    o some bug fixes for #undef REAL4_IS_SLOW
121    
122    checkpoint52 = ecco_c52_e35
123    o after testing adjoints of checkpoint51u_post
124    
125    checkpoint51u_post
126    o this is the post-merge tag of the ecco-branch
127      (needs another clean checkout and re-testing)
128    o various natl_box_adjoint configs and results
129      but no input fields
130    o obcs adjoint not yet merged!
131    o adding ECCO global 1x1 and 2x2 degree configs
132    o updated/extended some store directives for seaice
133    o pkg/ecco now containes ecco-specific part of cost function
134    o top level routines the_main_loop, forward_step
135      supersede those in model/src/
136      previous input data.cost now in data.ecco
137      (new namelist ecco_cost_nml)
138    o in ctrl/ cleaned some cross-dependencies and updated CPP options
139    
140    checkpoint51t_post
141    o this is the pre-merge tag of the ecco-branch
142    
143    checkpoint51s_post
144    o cleanup: removed various obsolete #define-s
145    o pkg/grdchk
146      - renamed 'ph-grd 3' to 'grad-res'
147      - merged from ecco-branch
148        (remaining bug fixes for obcs gradient checks)
149      - additional high-precision output for testreport
150        (grep for 'precision_grdchk_result')
151    
152    checkpoint51r_post
153    o cleaned up or removed CPP_OPTIONS.h files
154    o updated results for some of the tests to reflect the new
155      optfiles (-ieee: -O0 instead of -O3)
156    
157    checkpoint51q_post
158    o cd_code:
159      - moved cd_scheme.F -> cd_code_scheme.F
160      - separate read_checkpoint from cd_code_ini_vars.F
161      - separated cd_code part from write_checkpoint
162      - updated AD_SOURCE, generated .flow
163      - added CD_CODE_VARS.h to the_main_loop
164      - Moving cd_code specific store dir.s to pkg/cd_code
165    o ctrl package totally restructured
166      - pack/unpack now optional and decoupled from
167        xx_/adxx_ I/O
168      - ctrl_pack/unpack cleaned
169        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
170      - confined inclusion of AD_CONFIG.h to where necessary.
171    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
172    
173    checkpoint51p_post
174    o create initial cd_code package
175      - WARNING: the initialization of fields within packages
176        is broken because INI_FIELDS (where READ_CHECKPOINT is
177        called) is called *before* PACKAGES_INIT_VARIABLES.
178        This seems to be backwards since
179        1) its important to initially zero the entire field including
180           the "halo" region
181        2) zeroing needs to be done *before* reading pickup info
182           and the pickup call might or might not happen in any
183           particular run
184      - this needs an overhaul for R2
185    o cleanup verification/*/code/GMREDI_OPTIONS.h
186    o cleanup testreport
187    
188    checkpoint51o_post
189    o bringing AD-related verif's up to date with genmake2
190      - carbon/
191      - global_ocean.90x40x15/
192      - hs.94.1x64x5/
193      - (front_relax/ )
194    o (more) consistent directory structure for AD-related verif.'s
195    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
196    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
197    o bug fix in find_alpha.F for MDJWF:
198      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
199        change rho -> rho-rhoConst
200      - replace call find_rho to find_rhonum
201    o initialisation of rFlx extended to full array (required by TAF)
202      and shifted to thermodynamics
203    o removed PTRACERS.h in ptracers routine
204    o added surfacetendencyPtr to S/R parameter list pracers_forcing
205    o Correcting initialisations for fVerU, fVerV.
206    o helping TAF to recognize dependency on kUp for
207      fVerU, fVerV
208    o Replacing delZ by delR in pkg/ctrl/
209    checkpoint51o_pre
210    
211    o undid all of cp51 pending some cleanups and discussion
212    o added the [#include "AD_CONFIG.h"] statement to all files that need
213       it for adjoint/tl #defines
214     o re-worked the build logic in genmake2 to support AD_CONFIG.h
215     o removed tools/genmake since it no longer works
216    
217    checkpoint51n_post
218    o modifications to make FREEZE flux visible to pkg/kpp
219      - moved surfaceTendencyTice from pkg/seaice to main code
220      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
221      - subroutine FREEZE now limits only surface temperature
222        (this means new output.txt for global_ocean.90x40x15,
223         global_ocean.cs32x15, and global_with_exf)
224    o added surface flux output variables to TIMEAVE_STATVARS
225    
226    checkpoint51n_pre
227    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
228    o added [#include "AD_CONFIG.h"] to all files that use the following
229      defines:
230      - ALLOW_ADJOINT_RUN
231      - ALLOW_TANGENTLINEAR_RUN
232      - ALLOW_ECCO_OPTIMIZATION
233    
234    checkpoint51m_post
235    o incorporating changes to get TAMC/TAF working in genmake2
236      - added new TAMC/TAF targets to the Makefile
237      - various cleanups related to package handling
238      - these changes should have no impact on the forward model
239    
240    checkpoint51l_post
241    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
242     - faster algorithm for cal_addtime.F
243     - higher precision arithmetic, where needed
244     - pkg/exf *startdate variables changed from calendar date to
245       model integration time
246    
247    checkpoint51l_pre
248    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
249    o enable to apply restoring on S & T only in a latitude band.
250    o update output (external_forcing_surf modif. change truncation errors)
251       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
252    
253    checkpoint51k_post
254    o change default to: useNHMTerms=.FALSE.
255     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
256       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
257     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
258        exp1, ideal_2D_oce
259     - change data file of oceanic exp (leave the results unchanged for now)
260       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
261    o set gravitySign automatically according to the vertical coordinate used
262      (and change sign: back to "logical" value: +1 when R increases downward)
263    o added an include barrier to the default CPP_OPTIONS.h and
264      removed the #include "PACKAGES_CONFIG.h" from it
265    o fix a bug in mom_fluxform (from chk51j_post)
266    
267    checkpoint51j_post
268    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
269    o adjusted some flow directives (dynamics, thermodynamics)
270    o added cubed-sphere case to test cost function
271    o heckpoint_lev?_directives.h now include
272      pkg-specific directives, whenever those are enabled.
273    o Moving pkg-specific flow directives to corresponding pkg
274      Moving pkg-specific differentiation list to corresponding pkg
275      Moving pkg-specific checkpoint-lev storing to corresponding pkg
276      ---> conventions are
277           - pkg_ad.flow
278           - pkg_ad_diff.list
279           - pkg_ad_check_lev?_dir.h
280    
281    checkpoint51i_post
282    o merge of the branch-genmake2
283      - knowingly breaks the older genmake
284      - automatic generation of all ALLOW_${PKG_NAME} defines
285      - new testreport supersedes older testscript
286    o large number of package inclusion and header cleanups
287    checkpoint51i_pre
288    
289    o new output for adjoin of global ocean vector invariant
290    o fix for checkpoint of thermodynamic seaice and bulk_force
291    o Steph gchem various cleanups
292    
293    checkpoint 51h_pre
294    o fixed some single quotes
295    o modify gchem pkg to be more versatile
296    o modifications to clean up dic pkg
297    o add pkg/cfc
298    
299    checkpoint51g_post
300    o provide links for ARPACK and ADM*TLM
301    o start removing verification/vero/
302    o update AD-related stuff
303      (in particular some IF-statements in model/src/ routines)
304    o adding to verification/global_ocean.90x40x15/ adjoint of
305      vector invariant setup
306    
307    checkpoint51f_post
308    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
309    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
310      of tracer Green's fucntions for ocean inversion project.
311    
312    checkpoint51f_pre
313    o Added on-the-fly spatial interpolation capability
314        "USE_EXF_INTERPOLATION" to pkg/exf.
315      - This is a temporary Cartesian-grid hack until
316        the super-duper ESMF coupler becomes available.
317      - See verification/global_with_exf/README for usage example.
318      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
319        flags and modified pkg/seaice accordingly.
320    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
321        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
322        non-local transport term.
323    
324    checkpoint51e_post
325    o pkg/mom_vecinv:
326      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
327      - add time-ave diagnostic of vorticity advection.
328    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
329    o atmospheric geopotential: - include water vapor effect;
330                                - use p^kappa in p* scaling.
331    o land pkg: read initial state from files.
332    o AIM : add stratospheric drag in the upper level
333    
334    checkpoint51d_post
335    o change function ILNBLNK (=> last non-blank char.) to return zero
336      (instead of the string length) when the string. char is empty
337    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
338    o modif's to restore TAMC compatibility
339      - avoid "_d" constructs in PARAMETER declarations
340      - avoid interrupting lines by comment lines
341    o Use cluster local disks for purely local I/O
342      vs. globally visible disks needed for ctrl stuff
343      (merged from ecco-branch)
344      - new active_file_loc... and mdsio_..._loc routines
345      - affected packages: autodiff, ctrl, grdchk, mdsio
346    
347    checkpoint51c_post
348    o introducing integer flag debugLevel
349      - debLevZero: suppress all output
350      - debLevA: standard
351      - debLevB: equivalent to current debugMode=.TRUE.
352    o introducing pathname variable mdsioLocalDir for mdsio
353      that can be specified at runtime
354      (relevant for cluster I/O to local disk)
355    `
356    >>>checkpoint51b_post
357    adjoint of ptracers
358    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
359    o extended state in checkpoint_lev?, etc.
360    o alternative ctrl/cost with tr1 or ptracer
361    o new comlev1_bibj_ptracers
362    o new ptracers.flow
363    o made ptracers_forcing same as external_forcing_s
364    o added verification for adjoint with ptracers
365      - adm. grdchk fail so far
366      - tlm. grdchk OK
367      - checked tapelev/comlev recomputations: OK
368    <<<checkpoint51b_pre
369    
370    checkpoint51a_post
371    o added code for biogeochemistry package
372      - new pkgs: dic, gchem
373      - new subroutine in ptracers
374    o modify code for biogeo packages
375      - in model/src and pkg/ptracers
376    
377    checkpoint51
378    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
379      - autodiff, ctrl, exf, grdchk, seaice
380      kept separate packages
381      - cost, ecco, obcs
382    o updating verification/internal_wave, verification/lab_sea
383      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
384    
385    checkpoint50i_post
386    o Preparing next differentiable checkpoint and sync
387      of MAIN vs. ecco-branch
388      - 1st step: this one is differentiable
389      - 2nd step: next(! not this) checkpoint will have updated packages
390                  from ecco-branch)
391    
392    checkpoint50h_post
393    o new package "land": provide surface BC for AIM.
394    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
395    o AIM: use true log-P extrapolation for near surface temp (= as in
396        F.Molteni paper) ; update aim.5l_cs output.
397    o New variable in PARM03 for more flexible pickups
398    o somewhat cleaned package initialisation sequence for
399      ctrl/ cost/ ecco/ in packages_... routines
400    
401    checkpoint50g_post
402    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
403      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
404      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
405        made the default because of faster convergence than ADI
406    
407    checkpoint50f_post
408    o exf totally restructured
409      - replaced all exf_set_ routines by one generic exf_set_gen.F
410        and made sure it's still differentiable
411      - split exf_getffields.F into new exf_bulkformulae.F
412      - exf_inscal_/exf_outscal_ suffixes consistent with field names
413      - updated adjoint/makefile and relevant verif. accordingly
414    
415    checkpoint50f_pre
416     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
417          + change Evap over land. (update aim.5l_cs output)
418     o added missing .cvsignores and made uniform across expts
419     o changed configuration of tidal_basin_2d expt
420     o added pkg/debug functions for tracing code in fatal crashes
421     o tidied pkg/monitor to use MONITOR_OPTIONS.h
422     o new fn in pkg/monitor to stop model if solution grows too big
423     o removed lots of single quotes from comments
424    
425    checkpoint50e_post
426    o make KPP work with PTRACERS
427     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
428       nearly a copy of kpp_transport_s
429     - there is no analogue to SurfaceTendencyS, so I have to use
430       gPtr(of the surface layer) instead
431    o add a new platform SunFire+mpi (SunFire 15000) to genmake
432    checkpoint50e_pre
433    
434    checkpoint50d_post
435    o change kpp output from multiple-record state files to single-record state
436      files analogous to write_state.F
437    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
438      analogous to the cg2d-related output.
439    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
440      so that writing to internal file fn (with length 512) fails.
441    checkpoint50d_pre
442    
443    checkpoint50c_post
444    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
445    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
446    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
447    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
448    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
449    
450    checkpoint50c_pre
451    Merging from release1_p13:
452    o bug fix for pkg/seaice dynamic solver
453    o Added SEAICE_initialHEFF to pkg/seaice
454    
455    checkpoint50b_post
456    o store u*,v* in gU,V instead of in guNm1,gvNm1
457    o in order to put the momForcing out of the Adams-Bashforth:
458      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
459      to timestep.F
460    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
461    o re-generate output for highly sensitive test-exp:
462       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
463    
464    checkpoint50b_pre
465    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
466    o corrected CPP option mismatch in exf_Bulk... functions for case
467      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
468    
469    checkpoint50a_post
470    o Bug fix for merging between c50 and KPP.
471      ikey was passed from thermodynamics to kpp_calc via
472      common block rather than being recomputed in kpp_calc,
473      in contradiction with new key itdkey.
474      New key ikppkey created, and tamc.h headers updated.
475    
476    checkpoint50
477    - 2nd step of merge with ecco-branch:
478      merge changes in ecco-branch back into main trunk
479    - bug fix in find_alpha
480    - more storing in gmredi_calc_tensor.F, kpp_routines.F
481    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
482    - merged some sliced AD support routines
483    
484    checkpoint49
485    merged from ecco-branch:
486    o exf:
487      - Enable initialisation of forcing fields to constant
488        (runtime) values.
489      - in exf_getffields.F
490        Reduce i-/j-loop to interior domain, discarding overlaps.
491        That also fixes wrong TAF-key computations for key_1, key_2
492        with bulf formulae.
493      - exf_init.F modify #ifdef for exf_init_evap
494      - exf_getffieldrec.F, ctrl_getrec.F
495        The following INT-usages are not safe:
496          fldsecs  = int(fldsecs/fldperiod)*fldperiod
497          fldcount = int(fldsecs/fldperiod) + 1
498        and were modified.
499    o autodiff: checkpoint_lev...
500      - updated storing for bulk formulae (some arrays were missing)
501      - added state for seaice package
502      - synchronized with main branch
503    o DIVA:
504      Modif.s in
505      - the_main_loop.F
506      - the_model_main.F
507      and added cost_final_restore.F cost_final_store.F
508      o With these changes, it is possible to fully separate
509        the first forward run to compute the cost function (mdthe_main_loop)
510        and adjoint runs over individual DIVA intervals (adthe_main_loop)
511        into separate model executions.
512        This enables better tuning of DIVA to given queue sizes.
513      o Loss of cost function value in consecutive DIVA runs is
514        fixed by storing to 'costfinal' file.
515      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
516        beginning/end of adjoint integration is accounted for.
517      The current changes apply to TAF-1.4.26.
518      TAF has one remaining bug, requiring one manual change
519      (see MITgcm manual).
520    o cal: synchronized between MAIN and ecco-branch
521    
522    checkpoint48i_post
523    o Changes to restore differentiability of code w.r.t. previous tag
524      (mostly adding new routines to make list and replacing
525      pressure by totPhiHyd).
526    o Updated and merged grdchk package
527      - has both ADM and TLM checks
528      - works for single- and multi-proc.
529      - output cleaned
530      - worked successfully for parallel DIVA
531    o genmake:
532      - Adding -platform=SP4
533      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
534    o Modif. for DIVA:
535      ctrl_unpack should not be called in intermediate DIVA interval.
536      (similar thing would apply for active files such as
537      tbar, sbar, psbar, which should not be reinitialised;
538      only relevant for ecco-branch)
539    
540    checkpoint48h_post
541    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
542    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
543    o Added SEAICE_initialHEFF to pkg/seaice
544    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
545    
546    checkpoint48g_post
547    --- EOS:
548    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
549      store total Potential in totPhyHyd for diagnostics & EOS.
550    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
551    --- Pressure/geopotential gradient:
552    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
553    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
554      ( changes results of global_ocean_pressure )
555    o NLFS + z-coord.: add eta*Rho' contribution.
556    o accurate phiHyd when using interface-W at the middle between 2 centers
557     ( changes results of ideal_2D_oce )
558    o includes r* 2nd term in potential gradient.
559    
560    checkpoint48f_post
561    Merging from release1_p12:
562    o Modifications for using pkg/exf with pkg/seaice
563      - improved description of the various forcing configurations
564      - added basic radiation bulk formulae to pkg/exf
565      - units/sign fix for evap computation in exf_getffields.F
566      - updated verification/global_with_exf/results/output.txt
567    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
568      (SBO) core products, including oceanic mass, center-of-mass,
569      angular, and bottom pressure (see pkg/sbo/README.sbo).
570    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
571      to avoid negative values in shallow regions.
572      - updated verification/natl_box/results/output.txt
573      - updated verification/lab_sea/results/output.txt
574    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
575    o Added useSingleCpuIO option (see PARAMS.h).
576    o Updated useSingleCpuIO option in mdsio_writefield.F to
577      work with multi-field files, e.g., for single-file pickup.
578    o pkg/seaice:
579      - bug fix in growth.F: QNET for no shortwave case
580      - added HeffFile for specifying initial sea-ice thickness
581      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
582    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
583      kpp_transport_t.F, forward_step.F, and the_main_loop.F
584    o pkg/seaice:
585      - adjoint-friendly modifications
586      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
587    
588    checkpoint48e_post
589    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
590    o dynamics: change definition of computational domain & adapt mom_fluxform
591      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
592    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
593        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
594        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
595        global_ocean.90x40x15 global_with_exf global_ocean_pressure
596        inverted_barometer solid-body.cs-32x32x1
597      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
598    
599    checkpoint48d_post
600    o in preparation for r*:
601     a) use pre-computed gradient of hydrostatic potential:
602        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
603     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
604        => affects results of glob_oce_pressure (different truncation error)  
605      update output.txt of ideal_2D_oce & global_ocean_pressure
606    
607    checkpoint48d_pre
608    o in preparation for r*:
609      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
610      pass the 2 comp. of the grad. as arguments to momentum S/R.
611      but for the moment, only used if it does not change the results.
612    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
613    
614    checkpoint48c_post
615    Modifications in treatment of initial flux forcing controls
616    to avoid extra storing of flux fields.
617    
618    checkpoint48c_pre
619    o Added tidal_basin_2d experiment (currently 1D!)
620    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
621    
622    checkpoint48b_post
623    o r* coordinate added in #ifdef NONLIN_FRSURF block.
624     (modification to pressure gradient not yet implemented)
625    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
626      (for U & V) that are used for vertical advection of momentum.
627    
628    checkpoint48a_post
629    o In preparation for r*, use temp. array to compute vertical transport
630       in flux-form momentum pkg. => change results of few test-exp.
631      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
632                        lab_sea, natl_box & plume_on_slope
633    
634    checkpoint48
635    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
636    
637    checkpoint47j_post
638    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
639    o moved adexch from forward_step to addummy_in_stepping
640    o added exch in ctrl_map_...
641    o aveFreq.=0. at end of cost_final to avoid overwrite in
642      reverse checkpointing loop
643    o Yet more changes in gmredi:
644      * adgmredi_calc_tensor
645        avoiding all recomputation of gmredi_slope_limit
646      * adgmredi_x/y/rtransport
647        added flag for excessive storing to avoid recomp. of
648        u/v/rtans, dTdx/y/z
649        -> this is not really necessary and very memory-consuming
650      * adgmredi_slope_psi:
651        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
652      * gmredi_slope_limit
653        re-activated full calculation of taperfct for case 'ac02'
654    o updating verification/ adjoints of carbon, global_ocean.90x40x15
655    
656    checkpoint47i_post
657    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
658    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
659      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
660    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
661    o gmredi: fix few bugs.
662    
663    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
664    This will be a good checkpoint to plug into the ecco-branch.
665    o few modif.'s to get latest version adjointed
666      (mainly kick out code in ini_linear_phisurf)
667    o modif's to run adjoint with exactConserv
668    o case GM_BOLUS_ADVEC should be cleaned
669      S/R gmredi_slope_psi should be cleaned
670    o verification/carbon now has exactConserv=.TRUE.
671    
672    checkpoint47g_post
673    o time-average AIM output: becomes independent from statvars time-average
674      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
675    o After TAF bug fix:
676      Tested adjoint of gmredi package.
677      Tests were done with checkpoint47 rather than with latest
678      checkpoint47f_post since the latter is broken for the adjoint
679      verification/carbon/ contains both ADM and TLM gradient checks.
680    Here they are, before they get changed/lost/stolen.
681    Mostly modif.'s to fix numerical sensitivities.
682    Gradient checks OK for
683    - GM_taper_scheme:
684      * clipping
685      * ac02
686      * linear
687      * glw91
688      * dm95
689      * ldd97
690    - GMREDI_OPTIONS:
691      * GM_VISBECK_VARIABLE_K
692      * GM_NON_UNITY_DIAGONAL
693      * GM_EXTRA_DIAGONAL
694      * GM_BOLUS_ADVEC
695    in conjunction with data.gmredi parameters to be checked in
696    in a few minutes under verification/carbon/code/
697    
698    checkpoint47f_post
699    Merging from release1_p10:
700    o modifications for using pkg/exf with pkg/seaice
701      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
702        and SEAICE_EXTERNAL_FLUXES
703      - pkg/exf CPP options EXF_READ_EVAP and
704        EXF_NO_BULK_COMPUTATIONS
705      - usage examples are Experiments 8 and 9 in
706        verification/lab_sea/README
707      - verification/lab_sea default experiment now uses
708        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
709    
710    checkpoint47e_post
711    o created a tag prior to creating a branch
712    
713    checkpoint47d_post
714    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
715      at the bottom boundary had an erroneous half slip boundary condition
716    o added bottom drag and no slip boundary condition capabilities to
717      oceanic pressure coordinates code
718    o added new verification experiment global_ocean_pressure, this experiment is
719      also described in the tutorial section of the manual
720    checkpoint47d_pre
721    
722    checkpoint47c_post
723    o Added a verification experiment for a global cubed-sphere ocean run
724      -  verification/global_ocean.cubed32x32x30
725      -  uses pkg/therm_seaice and pkg/bulk_forcing
726    
727    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
728    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
729      when using P-coordinate; only implemented for atmospheric config.
730    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
731      NOTES: requires option NONLIN_FRSURF to be "#define".
732    o update advect_xz/results/output.txt (left from checkpoint44g_post)
733    
734    checkpoint47b_post
735    Merging from release1_p9:
736    o pkg/seaice
737      - removed GOTO's and added taf directives
738      - double precision constants to reduce the g77 (Linux)
739        to F77 (SGI) differences reported in release1_p8
740    o tools/genmake
741      - added SGI options
742    o verification/testscript
743      - updated to that of checkpoint47a_post
744    o verification/global_ocean.90x40x15/input/eedata
745      - modified for SGI f77 compatibility
746    o verification/lab_sea
747      - added description of sea-ice model
748      - added missing matlab routines
749      - added test of thermodynamics parallelization
750    
751    checkpoint47a_post
752    o new pkg: aim_v23
753     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
754       for now, keep the same surface forcing as before.
755     - Part-Cell implemented into AIM; check that Heat & Water are conserved
756     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
757     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
758    o add diagnostic of surface correction term in monitor output
759    
760    o bulk_force and therm_seaice
761    - Two packages:  bulk_force (Bulk forcing)
762      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
763    - Earlier integration from Stephaine Dutkiewicz
764      and Patrick Heimbach.
765    - Two ifdef statements for compile time,
766       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
767    
768    checkpoint47
769    differentiable version of checkpoint46n_post
770    o bug fix in quasihydrostaticterms
771    o * "clean" adjoint code (in terms of extensive recomputations)
772        can now be obtained for all GMREDI options (i.e. for
773        - GM_VISBECK_VARIABLE_K
774        - GM_NON_UNITY_DIAGONAL
775        - GM_EXTRA_DIAGONAL
776        - GM_BOLUS_ADVEC )
777      * However, wrong gradient check problem remains unsolved.
778      * New CPP options have been introduced for different
779        tapering schemes
780    o external_fields_load now part of differentiation list
781    o pressure needs multiple storing;
782      would be nice to have store_pressure at beginning or
783      end of forward_step, e.g. by having phiHyd global (5-dim.)
784      (NB: pressure is needed for certain cases in find_rho,
785      which is also invoked through convective_adjustment).
786    o recomputations in find_rho for cases
787     'JMD95'/'UNESCO' or 'MDJWF' are OK.
788    o #define ATMOSPHERIC_LOADING should be differentiable
789    o ini_forcing shifted to begining of initialise_varia
790    o Incorporating QNVS line search routines into MITgcm
791      (this is separate code, and therefore not under pkg)
792      lsopt/, optim/
793    o Updated verification/carbon/
794      - #define GM_VISBECK_VARIABLE_K
795      - GM_taper_scheme    = 'ldd97'    
796    
797    checkpoint46n_post
798    Merging from release1_p8:
799    o verification/natl_box:
800      updating new external_fields_load routine
801    o New package: pkg/seaice
802      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
803      The sea-ice code is based on Hibler (1979-1980).
804      Two sea-ice dynamic solvers, ADI and LSR, are included.
805      In addition to computing prognostic sea-ice variables and diagnosing
806      the forcing/external data fields that drive the ocean model,
807      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
808      The implied surface heat flux is then stored in variable
809      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
810      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
811      non-local transport term.  Because this call precedes model
812      thermodynamics, temperature under sea-ice may not be "exactly" at
813      the freezing point by the time theta is dumped or time-averaged.
814      N.B.: fairly large differences in accuracy occur across
815            different platforms/compilers; comparison between
816            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
817            generated output gives:
818       T           S           U           V
819      C D M    c        m  s        m  s        m  s        m  s
820      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
821      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
822      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
823    
824      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
825    o GAD:
826      - generated new common blocks to account for call of
827        same gad routines with differing traceridentities
828        (needed to modify tracerIdentity indices in GAD.h)
829      - generated separate common blocks for case useCubedSphereExchange
830        (Department of Futurology)
831      - parameter lists to gmredi_?transport: added tracerIdentity
832      - added new key indices to tamc.h
833    o external_fields_load:
834      - added this routine to TAF list
835      - needed to make some common blocks global and additional storing
836        along the same lines as exf package (checkpoint_lev?_directives.h)
837    o exf:
838      updated external forcing package
839      - bug fixes carried over from ecco-branch
840        (missing OBCS_OPTIONS.h in two routines)
841      - enable easy to use "no forcing".
842      - added exf I/O for atmospheric loading
843      - added exf I/O for runoff data
844      - transfered scaling between exf <-> MITgcm to exf namelist
845    o Adding new verification experiment global_with_exf.
846      This verification experiment is almost identical to the
847      global_ocean.90x40x15 experiment, except that it uses
848      the exf (and cal) package instead of the
849      external_fields_load routine (cf README file).
850    
851    checkpoint46m_post
852    o modified testscript to return -- when there are no lines of "%MON" output
853    o added new flag "quasiHydrostatic" for QH mode
854      and new routine quasihydrostaticterms()
855    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
856      New routine: mom_u_coriolis_nh()
857    o fixed sign of non-hydrostatic metric terms in u and v equations.
858      Depend on correct sign of gravitySign.
859    o added work.pc* to .cvsignore in aim directories using ifc
860    o introduced flag for controllin non-hydrostatic metric terms
861    o removed gravitySign from PARM04
862    o switched to g77/ifc from pgf77 in aim experiments
863    
864    checkpoint46l_post
865    o made convective adjustment work with pressure coordinates:
866     - changed the direction of k-loop in convective_adjustment.F for the
867       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
868     - adjusted the reference pressure k-index in convective_adjustment.F
869     - adjusted the convection condition in convect.F (in analogy to
870       calc_ivdc.F)
871     - convective_adjustment no longer computes anything on the halos
872     - removed the warnings about negative salinity from find_rho.F and
873       find_alpha.F; instead the new routine look_for_neg_salinity, called
874       at the beginning of find_rho, find_alpha, and find_beta, does a
875       check of the entire slice, if CPP-option
876       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
877    checkpoint46l_pre
878    
879    checkpoint46k_post
880    o fixed the verification/global_ocean.90x40x15 experiment:
881     - new bathymetry (the world according to A., JMC, and M.)
882     - new initial fields and forcing fields (*.bin files)
883     - new POLY3.COEFFS (for the next release one should switch to a full
884       equation of state: JMD95P or MDJWF)
885     - fixed several errors and redundancies in the data file
886     - experiment uses looped cells
887     - added matlab directory with diagnostic scripts for plotting of output
888    
889    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
890     - read AIM physics parameters from a file (data.aimphys)
891     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
892    
893    checkpoint46j_post
894    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
895    o move wVel computation at the end of the time step, in S/R integr_continuity
896    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
897    o update timeave pkg for wVel diagnostic.
898    checkpoint46j_pre
899    
900    checkpoint46i_post
901    o Clean up AIM package (and keep the results unchanged):
902      include CPP_OPTION and use IMPLICT NONE in all routines ;
903      declare all the variables _RL ; use _d 0 for all numerical constants.
904      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
905    
906    checkpoint46h_post
907    o cleaned up the use of rhoNil and rhoConst.
908      - rhoNil should only appear in the LINEAR equation of state, everywhere
909        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
910        and the dynamical equations are all divided by rhoConst
911    o introduced new parameter rhoConstFresh, a reference density of fresh
912      water, to remove the fresh water flux's dependence on rhoNil. The default
913      value is 999.8 kg/m^3
914    o cleanup up external_forcing.F and external_forcing_surf.F
915      - can now be used by both OCEANIC and OCEANICP
916    checkpoint46h_pre
917    
918     Added code to convert surface volume flux (fresh water) into
919     a mass flux when using P coordinates in the ocean (OCEANICP).
920     Note: It assumes you have set rho0=rhoConst=density of fresh water.
921    
922    checkpoint46g_post
923    o Include a new diagnostic variable phiHydLow for the ocean model
924      - in z-coordinates, it is the bottom pressure anomaly
925      - in p-coordinates, it is the sea surface elevation
926      - in both cases, these variable have global drift, reflecting the mass
927        drift in z-coordinates and the volume drift in p-coordinates
928      - included time averaging for phiHydLow, be aware of the drift!
929    o depth-dependent computation of Bo_surf for pressure coordinates
930      in the ocean (buoyancyRelation='OCEANICP')
931      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
932        Theta, Salinity, and Pressure in the parameter list. This routine is
933        presently contained in find_rho.F. This routine does not give the
934        correct density for 'POLY3', which would be a z-dependent reference
935        density.
936    o cleaned up find_rho
937      - removed obsolete 'eqn' from the parameter list.
938    o added two new verification experiments: gop and goz
939      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
940    checkpoint46g_pre
941    
942    checkpoint46f_post
943    o Enable tangent linear (forward mode) gradient checks:
944      - extended active file handling to g_... files
945      - added TANGENT_SIMULATION to theSimulationMode
946      - extended grdchk package accordingly
947    o added tangent linear setup in verification/carbon/code_ftl
948    o added adjoint setup in verification/front_relax/code_ad
949    
950    checkpoint46e_post
951    o Added new equation of state -> MDJWF
952      - EOS of McDougall et al., 2002, JAOT, submitted
953      - caveat: the equation of state is only valid for a smaller (more
954        realistic?) range of values than JMD95P/Z and UNESCO
955      - added masks to the calculation of pressure in store_pressure
956      - added more check values for density in check_eos (ini_eos.F), some of
957        the old check values are out of the range of the MDJWF-eos, so don't
958        expect perfect matches for those
959    checkpoint46e_pre
960    
961    checkpoint46d_post
962    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
963      'OCEANICP', also initialised field pressure correctly in ini_eos in the
964      case of pressure coordinates. eosType='JMD95Z' in
965      combination with buoyancyRelation='OCEANICP' now causes an error.
966    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
967      in find_alpha/beta.
968    checkpoint46d_pre
969    
970    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
971      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
972    
973    checkpoint46c_post
974    o Changes necessary for ocean in p-coordinates
975     -  Added new buoyancy relation = 'OCEANICP'
976     -  Added new parameters = gravitySign (this used to be contained inside
977        the factor dRdZ which I added when we first switched to R coordinates).
978     X GM/Redi is not compatible (yet)
979     X bottom drag and no-slip need to be debugged.
980    checkpoint46c_pre
981    
982    checkpoint46b_post
983    o Added new equation of state -> JMD95Z and JMD95P
984      - EOS of Jackett and McDougall, 1995, JAOT
985      - moved all EOS parameters into EOS.h
986      - new routines ini_eos.F, store_pressure.F
987    o Added UNESCO EOS, but not recommended because it requires
988      in-situ temperature (see JMD95)
989    o Modified formatting for knudsen2.f in utils/knudsen2 and added
990      unesco.f to be used with POLY3
991    checkpoint46b_pre
992    
993    checkpoint46a_post
994    o Added (atmospheric) pressure loading
995      - new field in FFIELDS.h, etc...
996      - new cpp flag ATMOSPHERIC_LOADING
997    o Changed hFacC to _hFacC in calc_phi_hyd.F
998    o Added SHORTWAVE_HEATING to some files for consistency
999    checkpoint46a_pre
1000    
1001    checkpoint46
1002    further merges from release1_p5
1003    o new ctrl package
1004      - adopted from ECCO environment to enable optimization
1005      - added Eliassen Palm fluxes to controls
1006    o added Eliassen Palm flux controls to gradient check package
1007    o cost package
1008      - Compatible with new ctrl package
1009      - added Eliassen Palm cost hooks
1010      - modif's of existing cost functions
1011    o Adjoint-related bug fixes in kpp:
1012      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1013      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1014    o autodiff package
1015      - flow directives:
1016        + new for S/R do_the_model_io
1017        + enhanced for S/R checkpoint
1018        + new gmredi.flow
1019      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1020        disable adcommon.h/g_common.h by default.
1021      - fixed problem for adjoint of global_max
1022    o modified verification/carbon/
1023    o New setup for adjoint of global_ocean
1024    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1025    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1026    o incorporated hooks for sponge layer code (external_forcing.F)
1027    
1028    checkpoint45d_post
1029    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1030    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1031      (affects plume_on_slope "cg2d" output)
1032    o add new parameter deltaTfreesurf for free-surface time stepping
1033    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1034    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1035    o change phiMin in exp1 (to agree with documentation)
1036    o add new flags:
1037     - T,S forcing inside/outside Adams-Bashforth
1038     - turn off temp,salt advection and/or forcing
1039     - for each tracer, define internal flag for multiDimAdvection & A-B
1040    o monitor: change definition of KE to check conservation of Energy
1041    
1042    checkpoint45c_post
1043    o Removed f90 comments ("!")
1044    o Modified initialisations to enable exf package for MITgcm
1045      (without invoking ECCO_PACKAGE).
1046    o modifications to gradient check package (Martin Losch)
1047      - enable centered differences
1048      - modified format of standard output
1049    
1050    checkpoint45b_post
1051    o cleaned exchange calls in cg2d
1052    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1053    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1054      to configure barotropic setup (Martin Losch)
1055    o moved some initialisations within bi,bj loop in dynamics
1056      (TAF flow dependency)
1057    o in initialise_varia, moved call packages_init_variables
1058      before convective_adjustment_init
1059      (corresponding adjustment of TAF tape initialisation).
1060    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1061    
1062    checkpoint45a_post
1063    o compute Rho over the whole domain (extend iMin,jMin indices)
1064    o specific exchange for X-slice domain (case Ny=1)
1065    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1066    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1067    
1068    checkpoint44h_post = checkpoint45
1069    o Fix to restore differentiability:
1070      place at which packages_init_variables is called in
1071      initialise_varia is crucial for reverse control flow.
1072    o modifications in GMRedi to enable stable adjoint
1073      (corresponding modif's in thermodynamics, dynamics)
1074    o added missing hook for sponge layer code in external_forcing
1075    o modified test cost functions
1076    o storing in gad_advection (plus removal of write(0,*)!
1077    o missing headers TR1.h added in convective_adjustment routines
1078    o errorMessageUnit set non-equal zero in eeboot
1079      (conflict on some platforms, e.g. IBM SP3)
1080    o modified carbon verif.
1081    
1082    checkpoint44h_pre
1083    o vertical grid option: allow to put the Interface at the middle between
1084      2 cell-centers ; replace delZ in pkg/kpp by drF.
1085    o GM Advective form: Tracers are advected using the residual transport (=
1086      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1087    
1088    checkpoint44g_post
1089    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1090      results) ; ifdef missing in thermodynamics.F
1091    
1092    checkpoint44f_pre,checkpoint44f_post
1093    o added PTRACERS package
1094      This allows an arbitrary number of passive tracers to be integrated
1095      forward simultaneously with the dynamicaly model.
1096      + Implemented so far:
1097        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1098        - I/O and checkpointing
1099        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1100      + Not implemented so far:
1101        - KPP
1102        - OBCS
1103      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1104        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1105        line in data.pkg.
1106      + This package is disabled by default since it increases storage.
1107    
1108    
1109    o testscript: added -cleanup option
1110    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1111                 b) enable to filter 2D fields.
1112    
1113    checkpoint44e_pre,post
1114    o re-wrote convective adjustment to use pre-calculated weights
1115      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1116      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1117      Original calls to convect() still in place.
1118    
1119    chkpt44d_pre,post
1120    o added missing EXCLUDE_MONITOR flags
1121    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1122      (incompatible typ in MIN/MAX expressions caused problems
1123      on IBM SP3)
1124    o in genmake added variable MAKEDEPEND
1125      plus resetting for case SunOS
1126    o added timer_stats.c routine for IBM SP3
1127    o removed variables in dynamics
1128    !!! I forgot to create tag chkpt44d_pre !!!
1129    !!! But chkpt44d_pre = chkpt44c_post    !!!
1130    
1131    o real fresh water flux implemented with non-linear free-surface.
1132    
1133    chkpt44c_pre,post
1134    o few fix (mask in shap_s2, EmPmR in external_field_load,
1135      USE_NATURAL_BCS in solve_for_P);
1136    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1137    
1138    checkpoint44b_pre/_post
1139    o merge of relevant stuff from the ecco-branch:
1140      - genmake: removed $S64 overwrite for case SunOS
1141      - pkg/exf: update and corrections for field swapping and obcs
1142      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1143                  harmonized between ECCO and MITgcm
1144      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1145                      updated checkpointing_lev... lists for obcs
1146      - model/src: minor changes in forward_step, plot_field
1147                   added directive for divided adjoint in the_main_loop
1148      - pkg/mdsio: added mdsio_gl_slice
1149    
1150    o check parameters & config (chkpt44a_pre,post)
1151    o OBC and NonLin_FrSurf.
1152    
1153    checkpoint44
1154    o fix bug in mom_vi_del2uv
1155    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1156    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1157    o update AIM experiments (NCEP input files)
1158    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1159    o added some stuff for AD
1160    
1161    checkpoint43
1162    o added two new advection tests
1163    o added global 4x4 degree ocean test
1164    o added test of H&S94 with free surface on cube
1165    o some final mods for gradient check, adjoint,...
1166    
1167    checkpoint42
1168      Fixed AD-related problems:
1169    o Store directives up-to-date with re-arranged Adams-Bashforth
1170      (mainly thermodynamics.F)
1171    o New store directives for multi-dim. advection schemes
1172      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1173      * new common block and key passkey
1174      (mainly gad_advection.F)
1175    o Modified store directives for split of dynamics/thermodynamics
1176      for the case ALLOW_KPP
1177    o Cleaned argument list for timestep_tracer.F
1178    
1179    checkpoint41
1180    o re-formatted/added comments in prologues of key subroutines
1181      to work with protex
1182    
1183    checkpoint40
1184    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1185    o added FLT (floats) package from Arne along with demo. experiment
1186    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1187      implementation of forward-in-time forcing terms
1188    o more mods for non-linear free-surface including new variable
1189    o modified multi-dim method to work on cube
1190    o bug fix in KPP (from DM)
1191    
1192    checkpoint40pre9
1193    o added DST advection schemes
1194    o fix MPI bug on SGI's
1195    o modifications for non-linear free-surface
1196    o fixed conditionals for fixed flow/passive tracer only mode
1197    o added tension/strain form of stress tensor
1198    o changes to commenting of arguments for TAF/TAMC
1199    o added/updated many matlab scripts
1200    o added multi-dimensional advection method for tracers
1201      
1202    checkpoint40pre8
1203    o new package rw/
1204      Added method for dumping intermediate local arrays:
1205      mdsio_writetile - same as mdsio_writefield except works from inside
1206                        bi,bj loop
1207      mdsio_writelocal - same as mdsio_writetile except works for local
1208                         arrays
1209      write_local_r? - higher-level wrapper for mdsio_writelocal
1210      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1211      Example given at end of mom_vecinv.F that dumps some local arrays.
1212    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1213      control flux-form versus vector invariant code.
1214      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1215      or genmake -DISABLE ...
1216    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1217      (additional storing is now needed for case vecinv;
1218      currently nothing implemented to switch this storing off
1219      in case fluxform is used since no CPP flag available).
1220    
1221    checkpoint40pre7
1222    o bug fix in dynamics.F
1223      calc_viscosity called before k=1,Nr loop.
1224    o added some #ifdef's ALLOW_PASSIVE_TRACER
1225    o cleaned initialisations in ctrl_map_ini
1226      related to TAF
1227    
1228    checkpoint40pre6
1229    o split dynamics into thermodynamics & dynamics
1230    o corresponding split of calc_diffusivity into
1231      calc_diffusivity, calc_viscosity
1232      (kpp_calc_diff, kpp_calc_visc).
1233    o Added diffkr, kapgm to control variables
1234    o bug fix in gmredi_slope_limit for ldd97
1235    
1236    checkpoint40pre5
1237    o proper initialization of Adams-Bashforth time stepping
1238      + uses forward step for very first step of model (iter=0)
1239    o re-generated *all* output since almost all output is modified by this
1240      change (sorry but we've been putting this one off for about 2 years)
1241      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1242        *not* regenerated since they are already out of date and I don't
1243        want to create the impression that they are suddenly working.
1244    o removed KAP stuff for DEC's
1245    o modified/added many .cvsignore files in */code and */input
1246    o added new expt "solid-body.cs-32x32x1"
1247      + this uses an alternative form of ini_curvilinear_grid.F which
1248        is not necessarily any better than the current one...
1249    
1250    checkpoint40pre4
1251    o added re-initialisations of utrans,vtrans,rtrans in
1252      calc_common_factors which are crucial for TAF.
1253    o extended iMin,jMin range for calc_common_factors,
1254      calc_diffusivity
1255    o added option ALLOW_PASSIVE_TRACER
1256    o a few minor updates and fixes
1257    
1258    checkpoint40pre3
1259    o created calc_gtr1.F for gad package
1260    o split the_main_loop and re-introduced forward_step
1261    o some recomputations of nIter0 for TAMC
1262    
1263    checkpoint40pre2
1264    o Updated to latest branch of AJA, JMC
1265    o Added gradient check package
1266    o Added routines for passive tracer handling
1267    o Added carbon sequestration sensitivity experiment
1268    
1269    checkpoint39
1270     o Modifications and fixes to support TAMC
1271       (mainly missing or wrong directives)
1272     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1273       in addummy_in_stepping
1274     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1275     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1276     o Included following packages:
1277       cal: calendar
1278       exf: external forcing
1279       ecco: essential routines to control use of cal, exf
1280             (NB: this is not the full ECCO environment)
1281     o disabled some packages by default in genmake
1282    
1283    checkpoint38
1284     o see notes_c37_adj.txt
1285     o corrected wrong layer index in external_forcing_t
1286     o replaced the_main_loop/forward_step by the_main_loop
1287     o removed forceoutput from write_state
1288       (replaced criteria for initial/final state)
1289     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1290    
1291    checkpoint37
1292     o mdsio.F routine split and packaged in pkg/mdsio
1293       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1294        used unless genmake -disable=mdsio)
1295     o allow a more precise surface-geopotential gradient for the atmosphere
1296       taking into account the change in space of Alpha (=1/rho) at the surface.
1297     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1298       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1299     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1300       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1301       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1302     o Time-Average diagnostics defined as a pseudo package "timeave".
1303     o pickup files : old pickup (before c35) did not work with new code (c35
1304       and after) unless activating 2 commented lines in initialise-varia.
1305     o Non-Hydrostatic pickup file Pb fixed.
1306     o bug with Rigid-lid version (since c35) fixed.  
1307    
1308    checkpoint36
1309     o implement Crank-Nickelson barotropic time-stepping
1310     o recover Time-Average diagnostics
1311     o fix Pb in checkpoint (PR#19)
1312     o AIM become a standard package ; clean unused CPP_kees
1313    
1314    checkpoint35
1315     o subtantial rewrite of dynamics.f
1316     o allows staggered time-stepping
1317     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1318     o added bottom drag (linear + quadratic)
1319    
1320    checkpoint34
1321     o Modified exchange routines for correct reverse simulation.
1322     o Added verification output to comply with bug fix in impldiff.F
1323       as of c33 (exp2, natl_box).
1324     o Corrected store directives in dynamics.F
1325     o Corrected array boundaries in impldiff.F
1326     o Corrected array dimensions in gmredi.
1327       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1328     o Added routine GLOBAL_SUM_INT to global_sum.F
1329     o Added mdsio_gl.F for ECCO purposes.
1330    
1331    checkpoint33
1332     o Fixed bug in lower BC in impldiff.F
1333     o Fixed confusion about units of forcing arrays in FFIELDS.h
1334       namely Fu,Fv,Qnet,Qsw,EmPmR:
1335       - Removed verification/natl_box/code/external_fields_scale.F
1336         (did not differ from that in model/src)
1337       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1338         (see FFIELDS.h for description)
1339       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1340         kpp_calc.F and kpp_transport_t.F
1341       - Removed model/src/external_fields_scale.F and calls to it
1342       - verification/natl_box uses flux data with "atmospheric" sign so
1343         a special version of external_fields_load.F is used to
1344         change the data as it's read in. This way, the arrays
1345         have the right units and signs at all times tha a user could
1346         possibly use them.
1347     o Corrected genmake to delete a temporary file during configuration
1348    
1349    checkpoint32
1350     o Scaling of forcing fields moved from external_forcing.F to
1351       external_fields_scale.F, called directly after loading fields.
1352     o Surface relaxation terms added to surface tendency fields in
1353       extra subroutine.
1354     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1355       fields.
1356     o Changes in GMRedi to comply with packaging structure.
1357     o Modifications and bug fixes in KPP package.
1358     o Verification experiment for KPP added (verification/nat_box/)
1359    
1360    checkpoint31
1361     o Packages interface brought in line with defined standard
1362       -> new routines packages_...F
1363       -> changes in initialise_fixed.F, initialise_varia.F
1364       -> enables initialisation interface for ECCO package
1365     o Rescaling of external forcing fields immediately after read
1366       (removed from external_forcing.F)
1367       -> new: surface_fields_scale.F
1368       -> affects ini_foorcing.F, external_fields_load.F
1369     o Computation of surface tendencies before tendency updates.
1370       -> new: external_forcing_surf.F
1371     o Change of variable names useGMRedi, useKPP, useECCO
1372     o Further changes in dynamics.F, impldiff.F for TAMC
1373     o Tested for experiments 0, 2, 4.
1374       - not yet tested for GMRedi.
1375       - not yet tested for KPP.
1376    
1377    checkpoint30
1378     o Updates for OBCs
1379     o New experiment for test OBCs (internal_wave)
1380     o New output.txt in verification/exp4/results/
1381     o Updates for KPP: calculation of viscosity corrected, new variables
1382       kpp_dumpFreq and kpp_taveFreq
1383     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1384       and entry for T90 in genmake
1385    
1386    checkpoint29
1387     o packaged KPP and GM/Redi
1388    
1389    checkpoint28
1390     o Corrected initialization of hFacMin for difference vertical coordinates
1391     o Modified calculation of partial cell thickness to more robust algorithm
1392     o config_summary.F: replaced write_1D_... by write_0D_...
1393       read_write.F: added subroutines write_0D_...
1394     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1395       included some initialisations required for TAMC.
1396     o routine calc_isoslopes: modified sqrt computation to make it
1397       differentiable for zero argument.
1398     o routines dynamics, impldiff:
1399       included store directives and tape key computations required for TAMC.
1400     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1401    
1402    checkpoint27
1403     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1404       formulation works properly with variable resolution.
1405     o restructured the calling tree between the_model_main() and dynamics()
1406     o split initialise() into initialise_fixed() and initialise_varia()
1407     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1408       in new routine ini_psurf()
1409    
1410    checkpoint26
1411     o moved some #ifdef in optional routines to encompass everything
1412       except the argument declarations. This was using up some memory.
1413     o fixed macros like _ADT to work with both versions of Linux cpp
1414     o cleaned up some unused and uninitialized variables
1415       (helps when debugging with strict compile options)
1416     o split up CPP_EEOPTIONS.h into options and macros
1417       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1418     o patch for 2 processor JAM mode
1419    
1420    checkpoint25
1421     o updates for OBCs and NH
1422     o dramatically reduced memory usage
1423     o added "JAM" routines for use on Artic network
1424     o parameterization of convection by implicit vertical diffusion
1425     o added a diagnostic of convective index
1426     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1427       (this is was partly for OBCs and NH but also in anticipation of
1428        an explicit free-surface option)
1429     o initial state input files for U and V
1430    
1431    checkpoint24
1432     o Removed some spurious "REAL"s
1433     o Updated KPP to latest version from JPL
1434     o Added a COS(latitude) in horizontal viscosity
1435    
1436    checkpoint23
1437     o Added del^4 diffusion for salt and temperature
1438     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1439    
1440    checkpoint22
1441     o Made many small changes: implicit none, format(i5), etc...
1442     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1443    
1444    checkpoint21
1445     o Introduced new I/O package that supports direct-access records (mdsio.F)
1446     o Split-up mid-level I/O routines
1447     o Updated input data for experiments 0,1,2,4 and 5
1448     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1449    
1450    checkpoint20
1451     o Tidied up open-boundaries some more
1452     o Added non-hydrostatic code
1453     o Fixed some input data
1454     o Modified MPI start-up to work in "coupled" context.
1455    
1456    checkpoint19
1457     o Tidied up directory structure for verification experiments.
1458     o Added new code for open boundaries.
1459     o Corrected advective terms near boundaries.
1460     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1461     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1462     o Split default parameters out of ini_parms.F into set_defaults.F.
1463    
1464    checkpoint18
1465     o Further changes for optional code generation with
1466       CPP - ugh!
1467    
1468    checkpoint17
1469     o Beginning to incorporating modularity
1470       for supporting atmos. and ocean configs.
1471     o Small changes for TAMC complinace
1472     o New ultra simple test case. Barotropic box
1473       configuration "exp0".
1474    
1475    checkpoint16
1476     o Minor changes to exchange routines to support
1477       accumulation in reverse mode. Adjoint of an
1478       assignment is an addition.
1479     o Changes to support compilation by TAMC (LR(1)
1480       syntax) and by g77 under Linux ( 72 character
1481       limit ).
1482    
1483    checkpoint15
1484     Rewrote exchange routines to allow
1485     o General tile <-> tile connectivity.
1486     o TAMC reverse mode flag ( is this really needed? )
1487     o Variable width overlap and exchange region widths.
1488     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1489       shmput/shmget, VIA, SYSV shmem and every other cool
1490       communication method.
1491    
1492    checkpoint14
1493     Consistent isomorphism chages made. These allow dynamical core
1494     to support both pressure and meters as a vertical coordinate.
1495    
1496    checkpoint13
1497     Release which corrects global_max problem and a couple
1498     of KGM time-averaging diagnostic errors. Also contains
1499     a double-gyre experiment setup as well as the baseline
1500     4 degree global template. The double gyre template is
1501     organised to allow it to be applied automatically to
1502     the baseline configuration.
1503    
1504    branch-point-rdot
1505     A few tidy-ups have been made bt the real point of this
1506     check-point (excuse the pun) is to allow a branch to be
1507     made for the purposes of adding the rDot alterations.
1508     I don't want to commit the rDot to the main-trunk until
1509     we've actually tested it...
1510    
1511    checkpoint12
1512     Tidy up and added generic genmake script (formerly
1513     configure script).
1514     Released to testers.
1515    
1516    checkpoint11
1517     Re-arranged initialise() and introduced ini_vertical_grid()
1518     and ini_masks_etc().
1519    
1520  checkpoint10  checkpoint10
1521   Introduced the configure script.   Introduced the configure script.
1522   Separated out the diags package.   Separated out the diags package.

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