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revision 1.16 by cnh, Tue Nov 3 15:31:08 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  checkpoint17
1471   o Beginning to incorporating modularity   o Beginning to incorporating modularity
1472     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

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