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revision 1.7 by adcroft, Mon Jun 22 16:24:50 1998 UTC revision 1.243 by afe, Mon Jan 19 18:59:19 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 shortened offending lines in exch2_send_rx?.template
7    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
8    o genmake2: add build & execute test for NetCDF code
9    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
10      old grid files, moved CPP_EEMACROS.h to pkg/exch2
11    o added useSingleCPUIO flag to monitor.F and mon_out.F
12    o added temporary hack for sea-ice dynamics on the cube:
13      metric terms are ignored and it is assumed that
14      there is no sea-ice on cube faces 1, 2, 4, and 5.
15    
16    checkpoint52f_post
17    o added exch2 cube routines to pkg/exch2
18    o modified hs94.cs-32x32x5 to use it
19    o added new grid files to hs94.cs-32x32x5
20    checkpoint52f_pre
21    
22    checkpoint52e_post
23    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
24      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
25    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
26      to work with implicit vertical advection and AB ;
27    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
28    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
29     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
30    checkpoint52e_pre
31    
32    o fix bug in impldiff when Nr=1 or Nr=2.
33    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
34    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
35    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
36      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
37    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
38    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
39    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
40    
41    checkpoint52d_post
42    o re-tiled many expts to allow comparison in multi-processor mode
43      - updated output accordingly
44      - changed hs94.128x64x5 to use intial T from file rather than use the
45        random number generator
46    o add infrastructure in model routines for fizhi and gridalt packages
47    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
48    o changes to permit hi-res, cubed-sphere, configuration
49      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
50      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
51      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
52        of surface winds for the cube
53      (A verification experiment, based on global_ocean.cs32x15, but with
54       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
55       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
56       complete with example surface forcing files and matlab scripts to look
57       at the output and compare it with that of global_ocean.cs32x15.)
58    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
59       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
60       to conform to the common rule.
61    o check-in the first version of the coupler + interfaces for multi-components
62       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
63       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
64       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
65       - ocean and atmos. share the same horizontal grid (no interpolation).
66       - exchanges between component and coupler is done in forward_step
67    o new verification experiment, cpl_aim+ocn:
68       coupled ocean - AIM atmosphere on cs32 grid.
69    
70    checkpoint52d_pre
71    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
72    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
73    
74    checkpoint52c_post
75    o Fixing OPTIONS files for use of exf:
76      - ALLOW_ECCO not needed
77      - ECCO_CPPOPTIONS.h should not be included from
78        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
79        as has been the case in the past
80      - All cal/exf related options are currently set in
81        single header file. Should remain so until we
82        agree on a consistent new policy.
83    o Removed all CPP options for cal package.
84      cal has no more CPP options.
85    o modified STOREs in GAD_ADVECTION
86    o corrected key comp. for passkey
87    
88    checkpoint52b_post
89    o new version: "thsice" of thermodynamic sea-ice pkg:
90     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
91     - modify fluxes but do not change theta directly;
92     - light cleaning of bulk_force pkg (still needed with thsice).
93     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
94       + output_thsice.txt to test thsice & bulk_force pkgs.
95    o put back grid & coriolis monitor output.
96    checkpoint52b_pre
97    
98    o call "do_the_model_io" at the beginning (=> dump initial state)
99    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
100    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
101      (need info on NUMBER_OF_PTRACERS)
102    o missing PTRACERS headers in some routines
103    o default tamc.h in pkg/autodiff supposed to crash
104      to ensure proper customization
105    
106    checkpoint52a_post
107    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
108      - moved surfaceTendencyTice from pkg/seaice to main code
109      - subroutine FREEZE_SURFACE now limits only surface temperature
110        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
111        => new output.txt for global_ocean.cs32x15 & global_with_exf
112      - keep the old version of FREEZE for backward compatibility;
113        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
114      - corresponding modifs for TAF directives
115    o added surface flux output variables to TIMEAVE_STATVARS
116    o time-averaged output for pkg/ptracers
117    o fix problem with ECCO-related divided adjoint
118      snapshot file was missing some ad-variables,
119      but no warning issued by TAF
120    
121    checkpoint52a_pre
122    o some bug fixes for #undef REAL4_IS_SLOW
123    
124    checkpoint52 = ecco_c52_e35
125    o after testing adjoints of checkpoint51u_post
126    
127    checkpoint51u_post
128    o this is the post-merge tag of the ecco-branch
129      (needs another clean checkout and re-testing)
130    o various natl_box_adjoint configs and results
131      but no input fields
132    o obcs adjoint not yet merged!
133    o adding ECCO global 1x1 and 2x2 degree configs
134    o updated/extended some store directives for seaice
135    o pkg/ecco now containes ecco-specific part of cost function
136    o top level routines the_main_loop, forward_step
137      supersede those in model/src/
138      previous input data.cost now in data.ecco
139      (new namelist ecco_cost_nml)
140    o in ctrl/ cleaned some cross-dependencies and updated CPP options
141    
142    checkpoint51t_post
143    o this is the pre-merge tag of the ecco-branch
144    
145    checkpoint51s_post
146    o cleanup: removed various obsolete #define-s
147    o pkg/grdchk
148      - renamed 'ph-grd 3' to 'grad-res'
149      - merged from ecco-branch
150        (remaining bug fixes for obcs gradient checks)
151      - additional high-precision output for testreport
152        (grep for 'precision_grdchk_result')
153    
154    checkpoint51r_post
155    o cleaned up or removed CPP_OPTIONS.h files
156    o updated results for some of the tests to reflect the new
157      optfiles (-ieee: -O0 instead of -O3)
158    
159    checkpoint51q_post
160    o cd_code:
161      - moved cd_scheme.F -> cd_code_scheme.F
162      - separate read_checkpoint from cd_code_ini_vars.F
163      - separated cd_code part from write_checkpoint
164      - updated AD_SOURCE, generated .flow
165      - added CD_CODE_VARS.h to the_main_loop
166      - Moving cd_code specific store dir.s to pkg/cd_code
167    o ctrl package totally restructured
168      - pack/unpack now optional and decoupled from
169        xx_/adxx_ I/O
170      - ctrl_pack/unpack cleaned
171        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
172      - confined inclusion of AD_CONFIG.h to where necessary.
173    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
174    
175    checkpoint51p_post
176    o create initial cd_code package
177      - WARNING: the initialization of fields within packages
178        is broken because INI_FIELDS (where READ_CHECKPOINT is
179        called) is called *before* PACKAGES_INIT_VARIABLES.
180        This seems to be backwards since
181        1) its important to initially zero the entire field including
182           the "halo" region
183        2) zeroing needs to be done *before* reading pickup info
184           and the pickup call might or might not happen in any
185           particular run
186      - this needs an overhaul for R2
187    o cleanup verification/*/code/GMREDI_OPTIONS.h
188    o cleanup testreport
189    
190    checkpoint51o_post
191    o bringing AD-related verif's up to date with genmake2
192      - carbon/
193      - global_ocean.90x40x15/
194      - hs.94.1x64x5/
195      - (front_relax/ )
196    o (more) consistent directory structure for AD-related verif.'s
197    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
198    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
199    o bug fix in find_alpha.F for MDJWF:
200      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
201        change rho -> rho-rhoConst
202      - replace call find_rho to find_rhonum
203    o initialisation of rFlx extended to full array (required by TAF)
204      and shifted to thermodynamics
205    o removed PTRACERS.h in ptracers routine
206    o added surfacetendencyPtr to S/R parameter list pracers_forcing
207    o Correcting initialisations for fVerU, fVerV.
208    o helping TAF to recognize dependency on kUp for
209      fVerU, fVerV
210    o Replacing delZ by delR in pkg/ctrl/
211    checkpoint51o_pre
212    
213    o undid all of cp51 pending some cleanups and discussion
214    o added the [#include "AD_CONFIG.h"] statement to all files that need
215       it for adjoint/tl #defines
216     o re-worked the build logic in genmake2 to support AD_CONFIG.h
217     o removed tools/genmake since it no longer works
218    
219    checkpoint51n_post
220    o modifications to make FREEZE flux visible to pkg/kpp
221      - moved surfaceTendencyTice from pkg/seaice to main code
222      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
223      - subroutine FREEZE now limits only surface temperature
224        (this means new output.txt for global_ocean.90x40x15,
225         global_ocean.cs32x15, and global_with_exf)
226    o added surface flux output variables to TIMEAVE_STATVARS
227    
228    checkpoint51n_pre
229    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
230    o added [#include "AD_CONFIG.h"] to all files that use the following
231      defines:
232      - ALLOW_ADJOINT_RUN
233      - ALLOW_TANGENTLINEAR_RUN
234      - ALLOW_ECCO_OPTIMIZATION
235    
236    checkpoint51m_post
237    o incorporating changes to get TAMC/TAF working in genmake2
238      - added new TAMC/TAF targets to the Makefile
239      - various cleanups related to package handling
240      - these changes should have no impact on the forward model
241    
242    checkpoint51l_post
243    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
244     - faster algorithm for cal_addtime.F
245     - higher precision arithmetic, where needed
246     - pkg/exf *startdate variables changed from calendar date to
247       model integration time
248    
249    checkpoint51l_pre
250    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
251    o enable to apply restoring on S & T only in a latitude band.
252    o update output (external_forcing_surf modif. change truncation errors)
253       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
254    
255    checkpoint51k_post
256    o change default to: useNHMTerms=.FALSE.
257     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
258       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
259     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
260        exp1, ideal_2D_oce
261     - change data file of oceanic exp (leave the results unchanged for now)
262       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
263    o set gravitySign automatically according to the vertical coordinate used
264      (and change sign: back to "logical" value: +1 when R increases downward)
265    o added an include barrier to the default CPP_OPTIONS.h and
266      removed the #include "PACKAGES_CONFIG.h" from it
267    o fix a bug in mom_fluxform (from chk51j_post)
268    
269    checkpoint51j_post
270    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
271    o adjusted some flow directives (dynamics, thermodynamics)
272    o added cubed-sphere case to test cost function
273    o heckpoint_lev?_directives.h now include
274      pkg-specific directives, whenever those are enabled.
275    o Moving pkg-specific flow directives to corresponding pkg
276      Moving pkg-specific differentiation list to corresponding pkg
277      Moving pkg-specific checkpoint-lev storing to corresponding pkg
278      ---> conventions are
279           - pkg_ad.flow
280           - pkg_ad_diff.list
281           - pkg_ad_check_lev?_dir.h
282    
283    checkpoint51i_post
284    o merge of the branch-genmake2
285      - knowingly breaks the older genmake
286      - automatic generation of all ALLOW_${PKG_NAME} defines
287      - new testreport supersedes older testscript
288    o large number of package inclusion and header cleanups
289    checkpoint51i_pre
290    
291    o new output for adjoin of global ocean vector invariant
292    o fix for checkpoint of thermodynamic seaice and bulk_force
293    o Steph gchem various cleanups
294    
295    checkpoint 51h_pre
296    o fixed some single quotes
297    o modify gchem pkg to be more versatile
298    o modifications to clean up dic pkg
299    o add pkg/cfc
300    
301    checkpoint51g_post
302    o provide links for ARPACK and ADM*TLM
303    o start removing verification/vero/
304    o update AD-related stuff
305      (in particular some IF-statements in model/src/ routines)
306    o adding to verification/global_ocean.90x40x15/ adjoint of
307      vector invariant setup
308    
309    checkpoint51f_post
310    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
311    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
312      of tracer Green's fucntions for ocean inversion project.
313    
314    checkpoint51f_pre
315    o Added on-the-fly spatial interpolation capability
316        "USE_EXF_INTERPOLATION" to pkg/exf.
317      - This is a temporary Cartesian-grid hack until
318        the super-duper ESMF coupler becomes available.
319      - See verification/global_with_exf/README for usage example.
320      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
321        flags and modified pkg/seaice accordingly.
322    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
323        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
324        non-local transport term.
325    
326    checkpoint51e_post
327    o pkg/mom_vecinv:
328      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
329      - add time-ave diagnostic of vorticity advection.
330    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
331    o atmospheric geopotential: - include water vapor effect;
332                                - use p^kappa in p* scaling.
333    o land pkg: read initial state from files.
334    o AIM : add stratospheric drag in the upper level
335    
336    checkpoint51d_post
337    o change function ILNBLNK (=> last non-blank char.) to return zero
338      (instead of the string length) when the string. char is empty
339    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
340    o modif's to restore TAMC compatibility
341      - avoid "_d" constructs in PARAMETER declarations
342      - avoid interrupting lines by comment lines
343    o Use cluster local disks for purely local I/O
344      vs. globally visible disks needed for ctrl stuff
345      (merged from ecco-branch)
346      - new active_file_loc... and mdsio_..._loc routines
347      - affected packages: autodiff, ctrl, grdchk, mdsio
348    
349    checkpoint51c_post
350    o introducing integer flag debugLevel
351      - debLevZero: suppress all output
352      - debLevA: standard
353      - debLevB: equivalent to current debugMode=.TRUE.
354    o introducing pathname variable mdsioLocalDir for mdsio
355      that can be specified at runtime
356      (relevant for cluster I/O to local disk)
357    `
358    >>>checkpoint51b_post
359    adjoint of ptracers
360    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
361    o extended state in checkpoint_lev?, etc.
362    o alternative ctrl/cost with tr1 or ptracer
363    o new comlev1_bibj_ptracers
364    o new ptracers.flow
365    o made ptracers_forcing same as external_forcing_s
366    o added verification for adjoint with ptracers
367      - adm. grdchk fail so far
368      - tlm. grdchk OK
369      - checked tapelev/comlev recomputations: OK
370    <<<checkpoint51b_pre
371    
372    checkpoint51a_post
373    o added code for biogeochemistry package
374      - new pkgs: dic, gchem
375      - new subroutine in ptracers
376    o modify code for biogeo packages
377      - in model/src and pkg/ptracers
378    
379    checkpoint51
380    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
381      - autodiff, ctrl, exf, grdchk, seaice
382      kept separate packages
383      - cost, ecco, obcs
384    o updating verification/internal_wave, verification/lab_sea
385      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
386    
387    checkpoint50i_post
388    o Preparing next differentiable checkpoint and sync
389      of MAIN vs. ecco-branch
390      - 1st step: this one is differentiable
391      - 2nd step: next(! not this) checkpoint will have updated packages
392                  from ecco-branch)
393    
394    checkpoint50h_post
395    o new package "land": provide surface BC for AIM.
396    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
397    o AIM: use true log-P extrapolation for near surface temp (= as in
398        F.Molteni paper) ; update aim.5l_cs output.
399    o New variable in PARM03 for more flexible pickups
400    o somewhat cleaned package initialisation sequence for
401      ctrl/ cost/ ecco/ in packages_... routines
402    
403    checkpoint50g_post
404    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
405      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
406      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
407        made the default because of faster convergence than ADI
408    
409    checkpoint50f_post
410    o exf totally restructured
411      - replaced all exf_set_ routines by one generic exf_set_gen.F
412        and made sure it's still differentiable
413      - split exf_getffields.F into new exf_bulkformulae.F
414      - exf_inscal_/exf_outscal_ suffixes consistent with field names
415      - updated adjoint/makefile and relevant verif. accordingly
416    
417    checkpoint50f_pre
418     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
419          + change Evap over land. (update aim.5l_cs output)
420     o added missing .cvsignores and made uniform across expts
421     o changed configuration of tidal_basin_2d expt
422     o added pkg/debug functions for tracing code in fatal crashes
423     o tidied pkg/monitor to use MONITOR_OPTIONS.h
424     o new fn in pkg/monitor to stop model if solution grows too big
425     o removed lots of single quotes from comments
426    
427    checkpoint50e_post
428    o make KPP work with PTRACERS
429     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
430       nearly a copy of kpp_transport_s
431     - there is no analogue to SurfaceTendencyS, so I have to use
432       gPtr(of the surface layer) instead
433    o add a new platform SunFire+mpi (SunFire 15000) to genmake
434    checkpoint50e_pre
435    
436    checkpoint50d_post
437    o change kpp output from multiple-record state files to single-record state
438      files analogous to write_state.F
439    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
440      analogous to the cg2d-related output.
441    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
442      so that writing to internal file fn (with length 512) fails.
443    checkpoint50d_pre
444    
445    checkpoint50c_post
446    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
447    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
448    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
449    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
450    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
451    
452    checkpoint50c_pre
453    Merging from release1_p13:
454    o bug fix for pkg/seaice dynamic solver
455    o Added SEAICE_initialHEFF to pkg/seaice
456    
457    checkpoint50b_post
458    o store u*,v* in gU,V instead of in guNm1,gvNm1
459    o in order to put the momForcing out of the Adams-Bashforth:
460      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
461      to timestep.F
462    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
463    o re-generate output for highly sensitive test-exp:
464       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
465    
466    checkpoint50b_pre
467    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
468    o corrected CPP option mismatch in exf_Bulk... functions for case
469      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
470    
471    checkpoint50a_post
472    o Bug fix for merging between c50 and KPP.
473      ikey was passed from thermodynamics to kpp_calc via
474      common block rather than being recomputed in kpp_calc,
475      in contradiction with new key itdkey.
476      New key ikppkey created, and tamc.h headers updated.
477    
478    checkpoint50
479    - 2nd step of merge with ecco-branch:
480      merge changes in ecco-branch back into main trunk
481    - bug fix in find_alpha
482    - more storing in gmredi_calc_tensor.F, kpp_routines.F
483    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
484    - merged some sliced AD support routines
485    
486    checkpoint49
487    merged from ecco-branch:
488    o exf:
489      - Enable initialisation of forcing fields to constant
490        (runtime) values.
491      - in exf_getffields.F
492        Reduce i-/j-loop to interior domain, discarding overlaps.
493        That also fixes wrong TAF-key computations for key_1, key_2
494        with bulf formulae.
495      - exf_init.F modify #ifdef for exf_init_evap
496      - exf_getffieldrec.F, ctrl_getrec.F
497        The following INT-usages are not safe:
498          fldsecs  = int(fldsecs/fldperiod)*fldperiod
499          fldcount = int(fldsecs/fldperiod) + 1
500        and were modified.
501    o autodiff: checkpoint_lev...
502      - updated storing for bulk formulae (some arrays were missing)
503      - added state for seaice package
504      - synchronized with main branch
505    o DIVA:
506      Modif.s in
507      - the_main_loop.F
508      - the_model_main.F
509      and added cost_final_restore.F cost_final_store.F
510      o With these changes, it is possible to fully separate
511        the first forward run to compute the cost function (mdthe_main_loop)
512        and adjoint runs over individual DIVA intervals (adthe_main_loop)
513        into separate model executions.
514        This enables better tuning of DIVA to given queue sizes.
515      o Loss of cost function value in consecutive DIVA runs is
516        fixed by storing to 'costfinal' file.
517      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
518        beginning/end of adjoint integration is accounted for.
519      The current changes apply to TAF-1.4.26.
520      TAF has one remaining bug, requiring one manual change
521      (see MITgcm manual).
522    o cal: synchronized between MAIN and ecco-branch
523    
524    checkpoint48i_post
525    o Changes to restore differentiability of code w.r.t. previous tag
526      (mostly adding new routines to make list and replacing
527      pressure by totPhiHyd).
528    o Updated and merged grdchk package
529      - has both ADM and TLM checks
530      - works for single- and multi-proc.
531      - output cleaned
532      - worked successfully for parallel DIVA
533    o genmake:
534      - Adding -platform=SP4
535      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
536    o Modif. for DIVA:
537      ctrl_unpack should not be called in intermediate DIVA interval.
538      (similar thing would apply for active files such as
539      tbar, sbar, psbar, which should not be reinitialised;
540      only relevant for ecco-branch)
541    
542    checkpoint48h_post
543    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
544    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
545    o Added SEAICE_initialHEFF to pkg/seaice
546    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
547    
548    checkpoint48g_post
549    --- EOS:
550    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
551      store total Potential in totPhyHyd for diagnostics & EOS.
552    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
553    --- Pressure/geopotential gradient:
554    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
555    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
556      ( changes results of global_ocean_pressure )
557    o NLFS + z-coord.: add eta*Rho' contribution.
558    o accurate phiHyd when using interface-W at the middle between 2 centers
559     ( changes results of ideal_2D_oce )
560    o includes r* 2nd term in potential gradient.
561    
562    checkpoint48f_post
563    Merging from release1_p12:
564    o Modifications for using pkg/exf with pkg/seaice
565      - improved description of the various forcing configurations
566      - added basic radiation bulk formulae to pkg/exf
567      - units/sign fix for evap computation in exf_getffields.F
568      - updated verification/global_with_exf/results/output.txt
569    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
570      (SBO) core products, including oceanic mass, center-of-mass,
571      angular, and bottom pressure (see pkg/sbo/README.sbo).
572    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
573      to avoid negative values in shallow regions.
574      - updated verification/natl_box/results/output.txt
575      - updated verification/lab_sea/results/output.txt
576    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
577    o Added useSingleCpuIO option (see PARAMS.h).
578    o Updated useSingleCpuIO option in mdsio_writefield.F to
579      work with multi-field files, e.g., for single-file pickup.
580    o pkg/seaice:
581      - bug fix in growth.F: QNET for no shortwave case
582      - added HeffFile for specifying initial sea-ice thickness
583      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
584    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
585      kpp_transport_t.F, forward_step.F, and the_main_loop.F
586    o pkg/seaice:
587      - adjoint-friendly modifications
588      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
589    
590    checkpoint48e_post
591    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
592    o dynamics: change definition of computational domain & adapt mom_fluxform
593      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
594    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
595        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
596        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
597        global_ocean.90x40x15 global_with_exf global_ocean_pressure
598        inverted_barometer solid-body.cs-32x32x1
599      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
600    
601    checkpoint48d_post
602    o in preparation for r*:
603     a) use pre-computed gradient of hydrostatic potential:
604        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
605     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
606        => affects results of glob_oce_pressure (different truncation error)  
607      update output.txt of ideal_2D_oce & global_ocean_pressure
608    
609    checkpoint48d_pre
610    o in preparation for r*:
611      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
612      pass the 2 comp. of the grad. as arguments to momentum S/R.
613      but for the moment, only used if it does not change the results.
614    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
615    
616    checkpoint48c_post
617    Modifications in treatment of initial flux forcing controls
618    to avoid extra storing of flux fields.
619    
620    checkpoint48c_pre
621    o Added tidal_basin_2d experiment (currently 1D!)
622    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
623    
624    checkpoint48b_post
625    o r* coordinate added in #ifdef NONLIN_FRSURF block.
626     (modification to pressure gradient not yet implemented)
627    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
628      (for U & V) that are used for vertical advection of momentum.
629    
630    checkpoint48a_post
631    o In preparation for r*, use temp. array to compute vertical transport
632       in flux-form momentum pkg. => change results of few test-exp.
633      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
634                        lab_sea, natl_box & plume_on_slope
635    
636    checkpoint48
637    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
638    
639    checkpoint47j_post
640    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
641    o moved adexch from forward_step to addummy_in_stepping
642    o added exch in ctrl_map_...
643    o aveFreq.=0. at end of cost_final to avoid overwrite in
644      reverse checkpointing loop
645    o Yet more changes in gmredi:
646      * adgmredi_calc_tensor
647        avoiding all recomputation of gmredi_slope_limit
648      * adgmredi_x/y/rtransport
649        added flag for excessive storing to avoid recomp. of
650        u/v/rtans, dTdx/y/z
651        -> this is not really necessary and very memory-consuming
652      * adgmredi_slope_psi:
653        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
654      * gmredi_slope_limit
655        re-activated full calculation of taperfct for case 'ac02'
656    o updating verification/ adjoints of carbon, global_ocean.90x40x15
657    
658    checkpoint47i_post
659    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
660    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
661      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
662    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
663    o gmredi: fix few bugs.
664    
665    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
666    This will be a good checkpoint to plug into the ecco-branch.
667    o few modif.'s to get latest version adjointed
668      (mainly kick out code in ini_linear_phisurf)
669    o modif's to run adjoint with exactConserv
670    o case GM_BOLUS_ADVEC should be cleaned
671      S/R gmredi_slope_psi should be cleaned
672    o verification/carbon now has exactConserv=.TRUE.
673    
674    checkpoint47g_post
675    o time-average AIM output: becomes independent from statvars time-average
676      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
677    o After TAF bug fix:
678      Tested adjoint of gmredi package.
679      Tests were done with checkpoint47 rather than with latest
680      checkpoint47f_post since the latter is broken for the adjoint
681      verification/carbon/ contains both ADM and TLM gradient checks.
682    Here they are, before they get changed/lost/stolen.
683    Mostly modif.'s to fix numerical sensitivities.
684    Gradient checks OK for
685    - GM_taper_scheme:
686      * clipping
687      * ac02
688      * linear
689      * glw91
690      * dm95
691      * ldd97
692    - GMREDI_OPTIONS:
693      * GM_VISBECK_VARIABLE_K
694      * GM_NON_UNITY_DIAGONAL
695      * GM_EXTRA_DIAGONAL
696      * GM_BOLUS_ADVEC
697    in conjunction with data.gmredi parameters to be checked in
698    in a few minutes under verification/carbon/code/
699    
700    checkpoint47f_post
701    Merging from release1_p10:
702    o modifications for using pkg/exf with pkg/seaice
703      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
704        and SEAICE_EXTERNAL_FLUXES
705      - pkg/exf CPP options EXF_READ_EVAP and
706        EXF_NO_BULK_COMPUTATIONS
707      - usage examples are Experiments 8 and 9 in
708        verification/lab_sea/README
709      - verification/lab_sea default experiment now uses
710        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
711    
712    checkpoint47e_post
713    o created a tag prior to creating a branch
714    
715    checkpoint47d_post
716    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
717      at the bottom boundary had an erroneous half slip boundary condition
718    o added bottom drag and no slip boundary condition capabilities to
719      oceanic pressure coordinates code
720    o added new verification experiment global_ocean_pressure, this experiment is
721      also described in the tutorial section of the manual
722    checkpoint47d_pre
723    
724    checkpoint47c_post
725    o Added a verification experiment for a global cubed-sphere ocean run
726      -  verification/global_ocean.cubed32x32x30
727      -  uses pkg/therm_seaice and pkg/bulk_forcing
728    
729    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
730    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
731      when using P-coordinate; only implemented for atmospheric config.
732    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
733      NOTES: requires option NONLIN_FRSURF to be "#define".
734    o update advect_xz/results/output.txt (left from checkpoint44g_post)
735    
736    checkpoint47b_post
737    Merging from release1_p9:
738    o pkg/seaice
739      - removed GOTO's and added taf directives
740      - double precision constants to reduce the g77 (Linux)
741        to F77 (SGI) differences reported in release1_p8
742    o tools/genmake
743      - added SGI options
744    o verification/testscript
745      - updated to that of checkpoint47a_post
746    o verification/global_ocean.90x40x15/input/eedata
747      - modified for SGI f77 compatibility
748    o verification/lab_sea
749      - added description of sea-ice model
750      - added missing matlab routines
751      - added test of thermodynamics parallelization
752    
753    checkpoint47a_post
754    o new pkg: aim_v23
755     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
756       for now, keep the same surface forcing as before.
757     - Part-Cell implemented into AIM; check that Heat & Water are conserved
758     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
759     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
760    o add diagnostic of surface correction term in monitor output
761    
762    o bulk_force and therm_seaice
763    - Two packages:  bulk_force (Bulk forcing)
764      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
765    - Earlier integration from Stephaine Dutkiewicz
766      and Patrick Heimbach.
767    - Two ifdef statements for compile time,
768       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
769    
770    checkpoint47
771    differentiable version of checkpoint46n_post
772    o bug fix in quasihydrostaticterms
773    o * "clean" adjoint code (in terms of extensive recomputations)
774        can now be obtained for all GMREDI options (i.e. for
775        - GM_VISBECK_VARIABLE_K
776        - GM_NON_UNITY_DIAGONAL
777        - GM_EXTRA_DIAGONAL
778        - GM_BOLUS_ADVEC )
779      * However, wrong gradient check problem remains unsolved.
780      * New CPP options have been introduced for different
781        tapering schemes
782    o external_fields_load now part of differentiation list
783    o pressure needs multiple storing;
784      would be nice to have store_pressure at beginning or
785      end of forward_step, e.g. by having phiHyd global (5-dim.)
786      (NB: pressure is needed for certain cases in find_rho,
787      which is also invoked through convective_adjustment).
788    o recomputations in find_rho for cases
789     'JMD95'/'UNESCO' or 'MDJWF' are OK.
790    o #define ATMOSPHERIC_LOADING should be differentiable
791    o ini_forcing shifted to begining of initialise_varia
792    o Incorporating QNVS line search routines into MITgcm
793      (this is separate code, and therefore not under pkg)
794      lsopt/, optim/
795    o Updated verification/carbon/
796      - #define GM_VISBECK_VARIABLE_K
797      - GM_taper_scheme    = 'ldd97'    
798    
799    checkpoint46n_post
800    Merging from release1_p8:
801    o verification/natl_box:
802      updating new external_fields_load routine
803    o New package: pkg/seaice
804      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
805      The sea-ice code is based on Hibler (1979-1980).
806      Two sea-ice dynamic solvers, ADI and LSR, are included.
807      In addition to computing prognostic sea-ice variables and diagnosing
808      the forcing/external data fields that drive the ocean model,
809      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
810      The implied surface heat flux is then stored in variable
811      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
812      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
813      non-local transport term.  Because this call precedes model
814      thermodynamics, temperature under sea-ice may not be "exactly" at
815      the freezing point by the time theta is dumped or time-averaged.
816      N.B.: fairly large differences in accuracy occur across
817            different platforms/compilers; comparison between
818            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
819            generated output gives:
820       T           S           U           V
821      C D M    c        m  s        m  s        m  s        m  s
822      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
823      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
824      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
825    
826      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
827    o GAD:
828      - generated new common blocks to account for call of
829        same gad routines with differing traceridentities
830        (needed to modify tracerIdentity indices in GAD.h)
831      - generated separate common blocks for case useCubedSphereExchange
832        (Department of Futurology)
833      - parameter lists to gmredi_?transport: added tracerIdentity
834      - added new key indices to tamc.h
835    o external_fields_load:
836      - added this routine to TAF list
837      - needed to make some common blocks global and additional storing
838        along the same lines as exf package (checkpoint_lev?_directives.h)
839    o exf:
840      updated external forcing package
841      - bug fixes carried over from ecco-branch
842        (missing OBCS_OPTIONS.h in two routines)
843      - enable easy to use "no forcing".
844      - added exf I/O for atmospheric loading
845      - added exf I/O for runoff data
846      - transfered scaling between exf <-> MITgcm to exf namelist
847    o Adding new verification experiment global_with_exf.
848      This verification experiment is almost identical to the
849      global_ocean.90x40x15 experiment, except that it uses
850      the exf (and cal) package instead of the
851      external_fields_load routine (cf README file).
852    
853    checkpoint46m_post
854    o modified testscript to return -- when there are no lines of "%MON" output
855    o added new flag "quasiHydrostatic" for QH mode
856      and new routine quasihydrostaticterms()
857    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
858      New routine: mom_u_coriolis_nh()
859    o fixed sign of non-hydrostatic metric terms in u and v equations.
860      Depend on correct sign of gravitySign.
861    o added work.pc* to .cvsignore in aim directories using ifc
862    o introduced flag for controllin non-hydrostatic metric terms
863    o removed gravitySign from PARM04
864    o switched to g77/ifc from pgf77 in aim experiments
865    
866    checkpoint46l_post
867    o made convective adjustment work with pressure coordinates:
868     - changed the direction of k-loop in convective_adjustment.F for the
869       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
870     - adjusted the reference pressure k-index in convective_adjustment.F
871     - adjusted the convection condition in convect.F (in analogy to
872       calc_ivdc.F)
873     - convective_adjustment no longer computes anything on the halos
874     - removed the warnings about negative salinity from find_rho.F and
875       find_alpha.F; instead the new routine look_for_neg_salinity, called
876       at the beginning of find_rho, find_alpha, and find_beta, does a
877       check of the entire slice, if CPP-option
878       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
879    checkpoint46l_pre
880    
881    checkpoint46k_post
882    o fixed the verification/global_ocean.90x40x15 experiment:
883     - new bathymetry (the world according to A., JMC, and M.)
884     - new initial fields and forcing fields (*.bin files)
885     - new POLY3.COEFFS (for the next release one should switch to a full
886       equation of state: JMD95P or MDJWF)
887     - fixed several errors and redundancies in the data file
888     - experiment uses looped cells
889     - added matlab directory with diagnostic scripts for plotting of output
890    
891    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
892     - read AIM physics parameters from a file (data.aimphys)
893     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
894    
895    checkpoint46j_post
896    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
897    o move wVel computation at the end of the time step, in S/R integr_continuity
898    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
899    o update timeave pkg for wVel diagnostic.
900    checkpoint46j_pre
901    
902    checkpoint46i_post
903    o Clean up AIM package (and keep the results unchanged):
904      include CPP_OPTION and use IMPLICT NONE in all routines ;
905      declare all the variables _RL ; use _d 0 for all numerical constants.
906      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
907    
908    checkpoint46h_post
909    o cleaned up the use of rhoNil and rhoConst.
910      - rhoNil should only appear in the LINEAR equation of state, everywhere
911        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
912        and the dynamical equations are all divided by rhoConst
913    o introduced new parameter rhoConstFresh, a reference density of fresh
914      water, to remove the fresh water flux's dependence on rhoNil. The default
915      value is 999.8 kg/m^3
916    o cleanup up external_forcing.F and external_forcing_surf.F
917      - can now be used by both OCEANIC and OCEANICP
918    checkpoint46h_pre
919    
920     Added code to convert surface volume flux (fresh water) into
921     a mass flux when using P coordinates in the ocean (OCEANICP).
922     Note: It assumes you have set rho0=rhoConst=density of fresh water.
923    
924    checkpoint46g_post
925    o Include a new diagnostic variable phiHydLow for the ocean model
926      - in z-coordinates, it is the bottom pressure anomaly
927      - in p-coordinates, it is the sea surface elevation
928      - in both cases, these variable have global drift, reflecting the mass
929        drift in z-coordinates and the volume drift in p-coordinates
930      - included time averaging for phiHydLow, be aware of the drift!
931    o depth-dependent computation of Bo_surf for pressure coordinates
932      in the ocean (buoyancyRelation='OCEANICP')
933      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
934        Theta, Salinity, and Pressure in the parameter list. This routine is
935        presently contained in find_rho.F. This routine does not give the
936        correct density for 'POLY3', which would be a z-dependent reference
937        density.
938    o cleaned up find_rho
939      - removed obsolete 'eqn' from the parameter list.
940    o added two new verification experiments: gop and goz
941      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
942    checkpoint46g_pre
943    
944    checkpoint46f_post
945    o Enable tangent linear (forward mode) gradient checks:
946      - extended active file handling to g_... files
947      - added TANGENT_SIMULATION to theSimulationMode
948      - extended grdchk package accordingly
949    o added tangent linear setup in verification/carbon/code_ftl
950    o added adjoint setup in verification/front_relax/code_ad
951    
952    checkpoint46e_post
953    o Added new equation of state -> MDJWF
954      - EOS of McDougall et al., 2002, JAOT, submitted
955      - caveat: the equation of state is only valid for a smaller (more
956        realistic?) range of values than JMD95P/Z and UNESCO
957      - added masks to the calculation of pressure in store_pressure
958      - added more check values for density in check_eos (ini_eos.F), some of
959        the old check values are out of the range of the MDJWF-eos, so don't
960        expect perfect matches for those
961    checkpoint46e_pre
962    
963    checkpoint46d_post
964    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
965      'OCEANICP', also initialised field pressure correctly in ini_eos in the
966      case of pressure coordinates. eosType='JMD95Z' in
967      combination with buoyancyRelation='OCEANICP' now causes an error.
968    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
969      in find_alpha/beta.
970    checkpoint46d_pre
971    
972    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
973      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
974    
975    checkpoint46c_post
976    o Changes necessary for ocean in p-coordinates
977     -  Added new buoyancy relation = 'OCEANICP'
978     -  Added new parameters = gravitySign (this used to be contained inside
979        the factor dRdZ which I added when we first switched to R coordinates).
980     X GM/Redi is not compatible (yet)
981     X bottom drag and no-slip need to be debugged.
982    checkpoint46c_pre
983    
984    checkpoint46b_post
985    o Added new equation of state -> JMD95Z and JMD95P
986      - EOS of Jackett and McDougall, 1995, JAOT
987      - moved all EOS parameters into EOS.h
988      - new routines ini_eos.F, store_pressure.F
989    o Added UNESCO EOS, but not recommended because it requires
990      in-situ temperature (see JMD95)
991    o Modified formatting for knudsen2.f in utils/knudsen2 and added
992      unesco.f to be used with POLY3
993    checkpoint46b_pre
994    
995    checkpoint46a_post
996    o Added (atmospheric) pressure loading
997      - new field in FFIELDS.h, etc...
998      - new cpp flag ATMOSPHERIC_LOADING
999    o Changed hFacC to _hFacC in calc_phi_hyd.F
1000    o Added SHORTWAVE_HEATING to some files for consistency
1001    checkpoint46a_pre
1002    
1003    checkpoint46
1004    further merges from release1_p5
1005    o new ctrl package
1006      - adopted from ECCO environment to enable optimization
1007      - added Eliassen Palm fluxes to controls
1008    o added Eliassen Palm flux controls to gradient check package
1009    o cost package
1010      - Compatible with new ctrl package
1011      - added Eliassen Palm cost hooks
1012      - modif's of existing cost functions
1013    o Adjoint-related bug fixes in kpp:
1014      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1015      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1016    o autodiff package
1017      - flow directives:
1018        + new for S/R do_the_model_io
1019        + enhanced for S/R checkpoint
1020        + new gmredi.flow
1021      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1022        disable adcommon.h/g_common.h by default.
1023      - fixed problem for adjoint of global_max
1024    o modified verification/carbon/
1025    o New setup for adjoint of global_ocean
1026    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1027    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1028    o incorporated hooks for sponge layer code (external_forcing.F)
1029    
1030    checkpoint45d_post
1031    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1032    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1033      (affects plume_on_slope "cg2d" output)
1034    o add new parameter deltaTfreesurf for free-surface time stepping
1035    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1036    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1037    o change phiMin in exp1 (to agree with documentation)
1038    o add new flags:
1039     - T,S forcing inside/outside Adams-Bashforth
1040     - turn off temp,salt advection and/or forcing
1041     - for each tracer, define internal flag for multiDimAdvection & A-B
1042    o monitor: change definition of KE to check conservation of Energy
1043    
1044    checkpoint45c_post
1045    o Removed f90 comments ("!")
1046    o Modified initialisations to enable exf package for MITgcm
1047      (without invoking ECCO_PACKAGE).
1048    o modifications to gradient check package (Martin Losch)
1049      - enable centered differences
1050      - modified format of standard output
1051    
1052    checkpoint45b_post
1053    o cleaned exchange calls in cg2d
1054    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1055    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1056      to configure barotropic setup (Martin Losch)
1057    o moved some initialisations within bi,bj loop in dynamics
1058      (TAF flow dependency)
1059    o in initialise_varia, moved call packages_init_variables
1060      before convective_adjustment_init
1061      (corresponding adjustment of TAF tape initialisation).
1062    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1063    
1064    checkpoint45a_post
1065    o compute Rho over the whole domain (extend iMin,jMin indices)
1066    o specific exchange for X-slice domain (case Ny=1)
1067    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1068    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1069    
1070    checkpoint44h_post = checkpoint45
1071    o Fix to restore differentiability:
1072      place at which packages_init_variables is called in
1073      initialise_varia is crucial for reverse control flow.
1074    o modifications in GMRedi to enable stable adjoint
1075      (corresponding modif's in thermodynamics, dynamics)
1076    o added missing hook for sponge layer code in external_forcing
1077    o modified test cost functions
1078    o storing in gad_advection (plus removal of write(0,*)!
1079    o missing headers TR1.h added in convective_adjustment routines
1080    o errorMessageUnit set non-equal zero in eeboot
1081      (conflict on some platforms, e.g. IBM SP3)
1082    o modified carbon verif.
1083    
1084    checkpoint44h_pre
1085    o vertical grid option: allow to put the Interface at the middle between
1086      2 cell-centers ; replace delZ in pkg/kpp by drF.
1087    o GM Advective form: Tracers are advected using the residual transport (=
1088      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1089    
1090    checkpoint44g_post
1091    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1092      results) ; ifdef missing in thermodynamics.F
1093    
1094    checkpoint44f_pre,checkpoint44f_post
1095    o added PTRACERS package
1096      This allows an arbitrary number of passive tracers to be integrated
1097      forward simultaneously with the dynamicaly model.
1098      + Implemented so far:
1099        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1100        - I/O and checkpointing
1101        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1102      + Not implemented so far:
1103        - KPP
1104        - OBCS
1105      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1106        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1107        line in data.pkg.
1108      + This package is disabled by default since it increases storage.
1109    
1110    
1111    o testscript: added -cleanup option
1112    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1113                 b) enable to filter 2D fields.
1114    
1115    checkpoint44e_pre,post
1116    o re-wrote convective adjustment to use pre-calculated weights
1117      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1118      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1119      Original calls to convect() still in place.
1120    
1121    chkpt44d_pre,post
1122    o added missing EXCLUDE_MONITOR flags
1123    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1124      (incompatible typ in MIN/MAX expressions caused problems
1125      on IBM SP3)
1126    o in genmake added variable MAKEDEPEND
1127      plus resetting for case SunOS
1128    o added timer_stats.c routine for IBM SP3
1129    o removed variables in dynamics
1130    !!! I forgot to create tag chkpt44d_pre !!!
1131    !!! But chkpt44d_pre = chkpt44c_post    !!!
1132    
1133    o real fresh water flux implemented with non-linear free-surface.
1134    
1135    chkpt44c_pre,post
1136    o few fix (mask in shap_s2, EmPmR in external_field_load,
1137      USE_NATURAL_BCS in solve_for_P);
1138    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1139    
1140    checkpoint44b_pre/_post
1141    o merge of relevant stuff from the ecco-branch:
1142      - genmake: removed $S64 overwrite for case SunOS
1143      - pkg/exf: update and corrections for field swapping and obcs
1144      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1145                  harmonized between ECCO and MITgcm
1146      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1147                      updated checkpointing_lev... lists for obcs
1148      - model/src: minor changes in forward_step, plot_field
1149                   added directive for divided adjoint in the_main_loop
1150      - pkg/mdsio: added mdsio_gl_slice
1151    
1152    o check parameters & config (chkpt44a_pre,post)
1153    o OBC and NonLin_FrSurf.
1154    
1155    checkpoint44
1156    o fix bug in mom_vi_del2uv
1157    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1158    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1159    o update AIM experiments (NCEP input files)
1160    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1161    o added some stuff for AD
1162    
1163    checkpoint43
1164    o added two new advection tests
1165    o added global 4x4 degree ocean test
1166    o added test of H&S94 with free surface on cube
1167    o some final mods for gradient check, adjoint,...
1168    
1169    checkpoint42
1170      Fixed AD-related problems:
1171    o Store directives up-to-date with re-arranged Adams-Bashforth
1172      (mainly thermodynamics.F)
1173    o New store directives for multi-dim. advection schemes
1174      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1175      * new common block and key passkey
1176      (mainly gad_advection.F)
1177    o Modified store directives for split of dynamics/thermodynamics
1178      for the case ALLOW_KPP
1179    o Cleaned argument list for timestep_tracer.F
1180    
1181    checkpoint41
1182    o re-formatted/added comments in prologues of key subroutines
1183      to work with protex
1184    
1185    checkpoint40
1186    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1187    o added FLT (floats) package from Arne along with demo. experiment
1188    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1189      implementation of forward-in-time forcing terms
1190    o more mods for non-linear free-surface including new variable
1191    o modified multi-dim method to work on cube
1192    o bug fix in KPP (from DM)
1193    
1194    checkpoint40pre9
1195    o added DST advection schemes
1196    o fix MPI bug on SGI's
1197    o modifications for non-linear free-surface
1198    o fixed conditionals for fixed flow/passive tracer only mode
1199    o added tension/strain form of stress tensor
1200    o changes to commenting of arguments for TAF/TAMC
1201    o added/updated many matlab scripts
1202    o added multi-dimensional advection method for tracers
1203      
1204    checkpoint40pre8
1205    o new package rw/
1206      Added method for dumping intermediate local arrays:
1207      mdsio_writetile - same as mdsio_writefield except works from inside
1208                        bi,bj loop
1209      mdsio_writelocal - same as mdsio_writetile except works for local
1210                         arrays
1211      write_local_r? - higher-level wrapper for mdsio_writelocal
1212      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1213      Example given at end of mom_vecinv.F that dumps some local arrays.
1214    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1215      control flux-form versus vector invariant code.
1216      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1217      or genmake -DISABLE ...
1218    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1219      (additional storing is now needed for case vecinv;
1220      currently nothing implemented to switch this storing off
1221      in case fluxform is used since no CPP flag available).
1222    
1223    checkpoint40pre7
1224    o bug fix in dynamics.F
1225      calc_viscosity called before k=1,Nr loop.
1226    o added some #ifdef's ALLOW_PASSIVE_TRACER
1227    o cleaned initialisations in ctrl_map_ini
1228      related to TAF
1229    
1230    checkpoint40pre6
1231    o split dynamics into thermodynamics & dynamics
1232    o corresponding split of calc_diffusivity into
1233      calc_diffusivity, calc_viscosity
1234      (kpp_calc_diff, kpp_calc_visc).
1235    o Added diffkr, kapgm to control variables
1236    o bug fix in gmredi_slope_limit for ldd97
1237    
1238    checkpoint40pre5
1239    o proper initialization of Adams-Bashforth time stepping
1240      + uses forward step for very first step of model (iter=0)
1241    o re-generated *all* output since almost all output is modified by this
1242      change (sorry but we've been putting this one off for about 2 years)
1243      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1244        *not* regenerated since they are already out of date and I don't
1245        want to create the impression that they are suddenly working.
1246    o removed KAP stuff for DEC's
1247    o modified/added many .cvsignore files in */code and */input
1248    o added new expt "solid-body.cs-32x32x1"
1249      + this uses an alternative form of ini_curvilinear_grid.F which
1250        is not necessarily any better than the current one...
1251    
1252    checkpoint40pre4
1253    o added re-initialisations of utrans,vtrans,rtrans in
1254      calc_common_factors which are crucial for TAF.
1255    o extended iMin,jMin range for calc_common_factors,
1256      calc_diffusivity
1257    o added option ALLOW_PASSIVE_TRACER
1258    o a few minor updates and fixes
1259    
1260    checkpoint40pre3
1261    o created calc_gtr1.F for gad package
1262    o split the_main_loop and re-introduced forward_step
1263    o some recomputations of nIter0 for TAMC
1264    
1265    checkpoint40pre2
1266    o Updated to latest branch of AJA, JMC
1267    o Added gradient check package
1268    o Added routines for passive tracer handling
1269    o Added carbon sequestration sensitivity experiment
1270    
1271    checkpoint39
1272     o Modifications and fixes to support TAMC
1273       (mainly missing or wrong directives)
1274     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1275       in addummy_in_stepping
1276     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1277     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1278     o Included following packages:
1279       cal: calendar
1280       exf: external forcing
1281       ecco: essential routines to control use of cal, exf
1282             (NB: this is not the full ECCO environment)
1283     o disabled some packages by default in genmake
1284    
1285    checkpoint38
1286     o see notes_c37_adj.txt
1287     o corrected wrong layer index in external_forcing_t
1288     o replaced the_main_loop/forward_step by the_main_loop
1289     o removed forceoutput from write_state
1290       (replaced criteria for initial/final state)
1291     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1292    
1293    checkpoint37
1294     o mdsio.F routine split and packaged in pkg/mdsio
1295       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1296        used unless genmake -disable=mdsio)
1297     o allow a more precise surface-geopotential gradient for the atmosphere
1298       taking into account the change in space of Alpha (=1/rho) at the surface.
1299     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1300       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1301     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1302       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1303       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1304     o Time-Average diagnostics defined as a pseudo package "timeave".
1305     o pickup files : old pickup (before c35) did not work with new code (c35
1306       and after) unless activating 2 commented lines in initialise-varia.
1307     o Non-Hydrostatic pickup file Pb fixed.
1308     o bug with Rigid-lid version (since c35) fixed.  
1309    
1310    checkpoint36
1311     o implement Crank-Nickelson barotropic time-stepping
1312     o recover Time-Average diagnostics
1313     o fix Pb in checkpoint (PR#19)
1314     o AIM become a standard package ; clean unused CPP_kees
1315    
1316    checkpoint35
1317     o subtantial rewrite of dynamics.f
1318     o allows staggered time-stepping
1319     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1320     o added bottom drag (linear + quadratic)
1321    
1322    checkpoint34
1323     o Modified exchange routines for correct reverse simulation.
1324     o Added verification output to comply with bug fix in impldiff.F
1325       as of c33 (exp2, natl_box).
1326     o Corrected store directives in dynamics.F
1327     o Corrected array boundaries in impldiff.F
1328     o Corrected array dimensions in gmredi.
1329       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1330     o Added routine GLOBAL_SUM_INT to global_sum.F
1331     o Added mdsio_gl.F for ECCO purposes.
1332    
1333    checkpoint33
1334     o Fixed bug in lower BC in impldiff.F
1335     o Fixed confusion about units of forcing arrays in FFIELDS.h
1336       namely Fu,Fv,Qnet,Qsw,EmPmR:
1337       - Removed verification/natl_box/code/external_fields_scale.F
1338         (did not differ from that in model/src)
1339       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1340         (see FFIELDS.h for description)
1341       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1342         kpp_calc.F and kpp_transport_t.F
1343       - Removed model/src/external_fields_scale.F and calls to it
1344       - verification/natl_box uses flux data with "atmospheric" sign so
1345         a special version of external_fields_load.F is used to
1346         change the data as it's read in. This way, the arrays
1347         have the right units and signs at all times tha a user could
1348         possibly use them.
1349     o Corrected genmake to delete a temporary file during configuration
1350    
1351    checkpoint32
1352     o Scaling of forcing fields moved from external_forcing.F to
1353       external_fields_scale.F, called directly after loading fields.
1354     o Surface relaxation terms added to surface tendency fields in
1355       extra subroutine.
1356     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1357       fields.
1358     o Changes in GMRedi to comply with packaging structure.
1359     o Modifications and bug fixes in KPP package.
1360     o Verification experiment for KPP added (verification/nat_box/)
1361    
1362    checkpoint31
1363     o Packages interface brought in line with defined standard
1364       -> new routines packages_...F
1365       -> changes in initialise_fixed.F, initialise_varia.F
1366       -> enables initialisation interface for ECCO package
1367     o Rescaling of external forcing fields immediately after read
1368       (removed from external_forcing.F)
1369       -> new: surface_fields_scale.F
1370       -> affects ini_foorcing.F, external_fields_load.F
1371     o Computation of surface tendencies before tendency updates.
1372       -> new: external_forcing_surf.F
1373     o Change of variable names useGMRedi, useKPP, useECCO
1374     o Further changes in dynamics.F, impldiff.F for TAMC
1375     o Tested for experiments 0, 2, 4.
1376       - not yet tested for GMRedi.
1377       - not yet tested for KPP.
1378    
1379    checkpoint30
1380     o Updates for OBCs
1381     o New experiment for test OBCs (internal_wave)
1382     o New output.txt in verification/exp4/results/
1383     o Updates for KPP: calculation of viscosity corrected, new variables
1384       kpp_dumpFreq and kpp_taveFreq
1385     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1386       and entry for T90 in genmake
1387    
1388    checkpoint29
1389     o packaged KPP and GM/Redi
1390    
1391    checkpoint28
1392     o Corrected initialization of hFacMin for difference vertical coordinates
1393     o Modified calculation of partial cell thickness to more robust algorithm
1394     o config_summary.F: replaced write_1D_... by write_0D_...
1395       read_write.F: added subroutines write_0D_...
1396     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1397       included some initialisations required for TAMC.
1398     o routine calc_isoslopes: modified sqrt computation to make it
1399       differentiable for zero argument.
1400     o routines dynamics, impldiff:
1401       included store directives and tape key computations required for TAMC.
1402     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1403    
1404    checkpoint27
1405     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1406       formulation works properly with variable resolution.
1407     o restructured the calling tree between the_model_main() and dynamics()
1408     o split initialise() into initialise_fixed() and initialise_varia()
1409     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1410       in new routine ini_psurf()
1411    
1412    checkpoint26
1413     o moved some #ifdef in optional routines to encompass everything
1414       except the argument declarations. This was using up some memory.
1415     o fixed macros like _ADT to work with both versions of Linux cpp
1416     o cleaned up some unused and uninitialized variables
1417       (helps when debugging with strict compile options)
1418     o split up CPP_EEOPTIONS.h into options and macros
1419       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1420     o patch for 2 processor JAM mode
1421    
1422    checkpoint25
1423     o updates for OBCs and NH
1424     o dramatically reduced memory usage
1425     o added "JAM" routines for use on Artic network
1426     o parameterization of convection by implicit vertical diffusion
1427     o added a diagnostic of convective index
1428     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1429       (this is was partly for OBCs and NH but also in anticipation of
1430        an explicit free-surface option)
1431     o initial state input files for U and V
1432    
1433    checkpoint24
1434     o Removed some spurious "REAL"s
1435     o Updated KPP to latest version from JPL
1436     o Added a COS(latitude) in horizontal viscosity
1437    
1438    checkpoint23
1439     o Added del^4 diffusion for salt and temperature
1440     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1441    
1442    checkpoint22
1443     o Made many small changes: implicit none, format(i5), etc...
1444     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1445    
1446    checkpoint21
1447     o Introduced new I/O package that supports direct-access records (mdsio.F)
1448     o Split-up mid-level I/O routines
1449     o Updated input data for experiments 0,1,2,4 and 5
1450     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1451    
1452    checkpoint20
1453     o Tidied up open-boundaries some more
1454     o Added non-hydrostatic code
1455     o Fixed some input data
1456     o Modified MPI start-up to work in "coupled" context.
1457    
1458    checkpoint19
1459     o Tidied up directory structure for verification experiments.
1460     o Added new code for open boundaries.
1461     o Corrected advective terms near boundaries.
1462     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1463     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1464     o Split default parameters out of ini_parms.F into set_defaults.F.
1465    
1466    checkpoint18
1467     o Further changes for optional code generation with
1468       CPP - ugh!
1469    
1470    checkpoint17
1471     o Beginning to incorporating modularity
1472       for supporting atmos. and ocean configs.
1473     o Small changes for TAMC complinace
1474     o New ultra simple test case. Barotropic box
1475       configuration "exp0".
1476    
1477    checkpoint16
1478     o Minor changes to exchange routines to support
1479       accumulation in reverse mode. Adjoint of an
1480       assignment is an addition.
1481     o Changes to support compilation by TAMC (LR(1)
1482       syntax) and by g77 under Linux ( 72 character
1483       limit ).
1484    
1485    checkpoint15
1486     Rewrote exchange routines to allow
1487     o General tile <-> tile connectivity.
1488     o TAMC reverse mode flag ( is this really needed? )
1489     o Variable width overlap and exchange region widths.
1490     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1491       shmput/shmget, VIA, SYSV shmem and every other cool
1492       communication method.
1493    
1494    checkpoint14
1495     Consistent isomorphism chages made. These allow dynamical core
1496     to support both pressure and meters as a vertical coordinate.
1497    
1498    checkpoint13
1499     Release which corrects global_max problem and a couple
1500     of KGM time-averaging diagnostic errors. Also contains
1501     a double-gyre experiment setup as well as the baseline
1502     4 degree global template. The double gyre template is
1503     organised to allow it to be applied automatically to
1504     the baseline configuration.
1505    
1506    branch-point-rdot
1507     A few tidy-ups have been made bt the real point of this
1508     check-point (excuse the pun) is to allow a branch to be
1509     made for the purposes of adding the rDot alterations.
1510     I don't want to commit the rDot to the main-trunk until
1511     we've actually tested it...
1512    
1513    checkpoint12
1514     Tidy up and added generic genmake script (formerly
1515     configure script).
1516     Released to testers.
1517    
1518    checkpoint11
1519     Re-arranged initialise() and introduced ini_vertical_grid()
1520     and ini_masks_etc().
1521    
1522    checkpoint10
1523     Introduced the configure script.
1524     Separated out the diags package.
1525     Added template for writing time-averages of tile/intermediate quantities.
1526     Updated SIZE.h in exp2 and made the data big-endian.
1527    
1528  checkpoint9  checkpoint9
1529   MPI fix. Filename changes (meta/data). salbin*y stuff.   MPI fix. Filename changes (meta/data). salbin*y stuff.
1530   General tidy-up.   General tidy-up.

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