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revision 1.6 by adcroft, Mon Jun 22 16:09:37 1998 UTC revision 1.264 by dimitri, Wed Mar 3 05:17:44 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 no restoring terms under ice for pkg/seaice
7    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
8    o bug fix for pkg/seaice pickups
9    o change MNC call locations and add coordinate attributes
10    o mask vorticity at the corner ; affects global_ocean.cs output
11    o fix ini_curvilinear_grid ; test CS experiments with mpi
12    o aim.5l_cs: modify sea-ice fraction input file ; update output
13    o exf: Adding simple range check routine for exf fields after read
14    
15    checkpoint52k_post
16    o removed top-level directory "diags"
17      - we migrated these functions to pkg/timeave a long time ago
18    o fixed bug introduced in pkg/monitor
19    o accuracy ctrlprec = 32 insuffient for gradient checks using
20      averaged fields (I/O via cost_averages)
21      -> use ctrl.h in active_file*.F to control I/O precision.
22    o paramter list of CALL ADTHE_MAIN_LOOP
23    o added initial do_the_model_io to ecco
24    o set all ...Freq to zero after cost_final
25      taveFreq, dumpFreq, pChkptFreq
26    o MAIN and ECCO differentiability restored
27    
28    checkpoint52j_post
29    o fix nchklev in tamc.h for global_ocean...
30    o Bringing flow and store directives up-to-date
31    o Really weird thing!
32      call do_the_model_io from the_main_loop with parameters
33      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
34      TAF places a faulty re-call of initialise_varia
35      after cost_final call which should not be there!
36    checkpoint52j_pre
37    
38    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
39      error messages
40    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
41    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
42      debug output
43    o modfied mdsio_writefield.F to handle non-global files under exch2
44    o update AIM Cubed-Sphere exp (aim.5l_cs):
45      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
46    o update AIM Equatorial Channel exp:
47      use standard aim_v23 pkg and change the SST fields to be more realistic.
48    o globalFile now works with exch2
49    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
50      mon_vort3.F to make exch2 friendly with >1 tile per cube face
51    o limit timeave output for hi-res integrations
52    
53    checkpoint52i_post
54    o removed CPP_EEOPTIONS.h from verification/*/code
55    o updated the tiling for global_ocean_pressure
56    checkpoint52i_pre
57    
58    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
59      the old pkg/aim).
60    
61    checkpoint52h_pre
62    o shortened offending lines in exch2_send_rx?.template
63    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
64    o genmake2: add build & execute test for NetCDF code
65    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
66      old grid files, moved CPP_EEMACROS.h to pkg/exch2
67    o added useSingleCPUIO flag to monitor.F and mon_out.F
68    o added temporary hack for sea-ice dynamics on the cube:
69      metric terms are ignored and it is assumed that
70      there is no sea-ice on cube faces 1, 2, 4, and 5.
71    
72    checkpoint52f_post
73    o added exch2 cube routines to pkg/exch2
74    o modified hs94.cs-32x32x5 to use it
75    o added new grid files to hs94.cs-32x32x5
76    checkpoint52f_pre
77    
78    checkpoint52e_post
79    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
80      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
81    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
82      to work with implicit vertical advection and AB ;
83    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
84    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
85     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
86    checkpoint52e_pre
87    
88    o fix bug in impldiff when Nr=1 or Nr=2.
89    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
90    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
91    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
92      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
93    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
94    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
95    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
96    
97    checkpoint52d_post
98    o re-tiled many expts to allow comparison in multi-processor mode
99      - updated output accordingly
100      - changed hs94.128x64x5 to use intial T from file rather than use the
101        random number generator
102    o add infrastructure in model routines for fizhi and gridalt packages
103    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
104    o changes to permit hi-res, cubed-sphere, configuration
105      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
106      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
107      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
108        of surface winds for the cube
109      (A verification experiment, based on global_ocean.cs32x15, but with
110       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
111       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
112       complete with example surface forcing files and matlab scripts to look
113       at the output and compare it with that of global_ocean.cs32x15.)
114    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
115       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
116       to conform to the common rule.
117    o check-in the first version of the coupler + interfaces for multi-components
118       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
119       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
120       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
121       - ocean and atmos. share the same horizontal grid (no interpolation).
122       - exchanges between component and coupler is done in forward_step
123    o new verification experiment, cpl_aim+ocn:
124       coupled ocean - AIM atmosphere on cs32 grid.
125    
126    checkpoint52d_pre
127    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
128    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
129    
130    checkpoint52c_post
131    o Fixing OPTIONS files for use of exf:
132      - ALLOW_ECCO not needed
133      - ECCO_CPPOPTIONS.h should not be included from
134        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
135        as has been the case in the past
136      - All cal/exf related options are currently set in
137        single header file. Should remain so until we
138        agree on a consistent new policy.
139    o Removed all CPP options for cal package.
140      cal has no more CPP options.
141    o modified STOREs in GAD_ADVECTION
142    o corrected key comp. for passkey
143    
144    checkpoint52b_post
145    o new version: "thsice" of thermodynamic sea-ice pkg:
146     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
147     - modify fluxes but do not change theta directly;
148     - light cleaning of bulk_force pkg (still needed with thsice).
149     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
150       + output_thsice.txt to test thsice & bulk_force pkgs.
151    o put back grid & coriolis monitor output.
152    checkpoint52b_pre
153    
154    o call "do_the_model_io" at the beginning (=> dump initial state)
155    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
156    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
157      (need info on NUMBER_OF_PTRACERS)
158    o missing PTRACERS headers in some routines
159    o default tamc.h in pkg/autodiff supposed to crash
160      to ensure proper customization
161    
162    checkpoint52a_post
163    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
164      - moved surfaceTendencyTice from pkg/seaice to main code
165      - subroutine FREEZE_SURFACE now limits only surface temperature
166        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
167        => new output.txt for global_ocean.cs32x15 & global_with_exf
168      - keep the old version of FREEZE for backward compatibility;
169        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
170      - corresponding modifs for TAF directives
171    o added surface flux output variables to TIMEAVE_STATVARS
172    o time-averaged output for pkg/ptracers
173    o fix problem with ECCO-related divided adjoint
174      snapshot file was missing some ad-variables,
175      but no warning issued by TAF
176    
177    checkpoint52a_pre
178    o some bug fixes for #undef REAL4_IS_SLOW
179    
180    checkpoint52 = ecco_c52_e35
181    o after testing adjoints of checkpoint51u_post
182    
183    checkpoint51u_post
184    o this is the post-merge tag of the ecco-branch
185      (needs another clean checkout and re-testing)
186    o various natl_box_adjoint configs and results
187      but no input fields
188    o obcs adjoint not yet merged!
189    o adding ECCO global 1x1 and 2x2 degree configs
190    o updated/extended some store directives for seaice
191    o pkg/ecco now containes ecco-specific part of cost function
192    o top level routines the_main_loop, forward_step
193      supersede those in model/src/
194      previous input data.cost now in data.ecco
195      (new namelist ecco_cost_nml)
196    o in ctrl/ cleaned some cross-dependencies and updated CPP options
197    
198    checkpoint51t_post
199    o this is the pre-merge tag of the ecco-branch
200    
201    checkpoint51s_post
202    o cleanup: removed various obsolete #define-s
203    o pkg/grdchk
204      - renamed 'ph-grd 3' to 'grad-res'
205      - merged from ecco-branch
206        (remaining bug fixes for obcs gradient checks)
207      - additional high-precision output for testreport
208        (grep for 'precision_grdchk_result')
209    
210    checkpoint51r_post
211    o cleaned up or removed CPP_OPTIONS.h files
212    o updated results for some of the tests to reflect the new
213      optfiles (-ieee: -O0 instead of -O3)
214    
215    checkpoint51q_post
216    o cd_code:
217      - moved cd_scheme.F -> cd_code_scheme.F
218      - separate read_checkpoint from cd_code_ini_vars.F
219      - separated cd_code part from write_checkpoint
220      - updated AD_SOURCE, generated .flow
221      - added CD_CODE_VARS.h to the_main_loop
222      - Moving cd_code specific store dir.s to pkg/cd_code
223    o ctrl package totally restructured
224      - pack/unpack now optional and decoupled from
225        xx_/adxx_ I/O
226      - ctrl_pack/unpack cleaned
227        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
228      - confined inclusion of AD_CONFIG.h to where necessary.
229    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
230    
231    checkpoint51p_post
232    o create initial cd_code package
233      - WARNING: the initialization of fields within packages
234        is broken because INI_FIELDS (where READ_CHECKPOINT is
235        called) is called *before* PACKAGES_INIT_VARIABLES.
236        This seems to be backwards since
237        1) its important to initially zero the entire field including
238           the "halo" region
239        2) zeroing needs to be done *before* reading pickup info
240           and the pickup call might or might not happen in any
241           particular run
242      - this needs an overhaul for R2
243    o cleanup verification/*/code/GMREDI_OPTIONS.h
244    o cleanup testreport
245    
246    checkpoint51o_post
247    o bringing AD-related verif's up to date with genmake2
248      - carbon/
249      - global_ocean.90x40x15/
250      - hs.94.1x64x5/
251      - (front_relax/ )
252    o (more) consistent directory structure for AD-related verif.'s
253    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
254    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
255    o bug fix in find_alpha.F for MDJWF:
256      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
257        change rho -> rho-rhoConst
258      - replace call find_rho to find_rhonum
259    o initialisation of rFlx extended to full array (required by TAF)
260      and shifted to thermodynamics
261    o removed PTRACERS.h in ptracers routine
262    o added surfacetendencyPtr to S/R parameter list pracers_forcing
263    o Correcting initialisations for fVerU, fVerV.
264    o helping TAF to recognize dependency on kUp for
265      fVerU, fVerV
266    o Replacing delZ by delR in pkg/ctrl/
267    checkpoint51o_pre
268    
269    o undid all of cp51 pending some cleanups and discussion
270    o added the [#include "AD_CONFIG.h"] statement to all files that need
271       it for adjoint/tl #defines
272     o re-worked the build logic in genmake2 to support AD_CONFIG.h
273     o removed tools/genmake since it no longer works
274    
275    checkpoint51n_post
276    o modifications to make FREEZE flux visible to pkg/kpp
277      - moved surfaceTendencyTice from pkg/seaice to main code
278      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
279      - subroutine FREEZE now limits only surface temperature
280        (this means new output.txt for global_ocean.90x40x15,
281         global_ocean.cs32x15, and global_with_exf)
282    o added surface flux output variables to TIMEAVE_STATVARS
283    
284    checkpoint51n_pre
285    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
286    o added [#include "AD_CONFIG.h"] to all files that use the following
287      defines:
288      - ALLOW_ADJOINT_RUN
289      - ALLOW_TANGENTLINEAR_RUN
290      - ALLOW_ECCO_OPTIMIZATION
291    
292    checkpoint51m_post
293    o incorporating changes to get TAMC/TAF working in genmake2
294      - added new TAMC/TAF targets to the Makefile
295      - various cleanups related to package handling
296      - these changes should have no impact on the forward model
297    
298    checkpoint51l_post
299    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
300     - faster algorithm for cal_addtime.F
301     - higher precision arithmetic, where needed
302     - pkg/exf *startdate variables changed from calendar date to
303       model integration time
304    
305    checkpoint51l_pre
306    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
307    o enable to apply restoring on S & T only in a latitude band.
308    o update output (external_forcing_surf modif. change truncation errors)
309       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
310    
311    checkpoint51k_post
312    o change default to: useNHMTerms=.FALSE.
313     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
314       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
315     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
316        exp1, ideal_2D_oce
317     - change data file of oceanic exp (leave the results unchanged for now)
318       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
319    o set gravitySign automatically according to the vertical coordinate used
320      (and change sign: back to "logical" value: +1 when R increases downward)
321    o added an include barrier to the default CPP_OPTIONS.h and
322      removed the #include "PACKAGES_CONFIG.h" from it
323    o fix a bug in mom_fluxform (from chk51j_post)
324    
325    checkpoint51j_post
326    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
327    o adjusted some flow directives (dynamics, thermodynamics)
328    o added cubed-sphere case to test cost function
329    o heckpoint_lev?_directives.h now include
330      pkg-specific directives, whenever those are enabled.
331    o Moving pkg-specific flow directives to corresponding pkg
332      Moving pkg-specific differentiation list to corresponding pkg
333      Moving pkg-specific checkpoint-lev storing to corresponding pkg
334      ---> conventions are
335           - pkg_ad.flow
336           - pkg_ad_diff.list
337           - pkg_ad_check_lev?_dir.h
338    
339    checkpoint51i_post
340    o merge of the branch-genmake2
341      - knowingly breaks the older genmake
342      - automatic generation of all ALLOW_${PKG_NAME} defines
343      - new testreport supersedes older testscript
344    o large number of package inclusion and header cleanups
345    checkpoint51i_pre
346    
347    o new output for adjoin of global ocean vector invariant
348    o fix for checkpoint of thermodynamic seaice and bulk_force
349    o Steph gchem various cleanups
350    
351    checkpoint 51h_pre
352    o fixed some single quotes
353    o modify gchem pkg to be more versatile
354    o modifications to clean up dic pkg
355    o add pkg/cfc
356    
357    checkpoint51g_post
358    o provide links for ARPACK and ADM*TLM
359    o start removing verification/vero/
360    o update AD-related stuff
361      (in particular some IF-statements in model/src/ routines)
362    o adding to verification/global_ocean.90x40x15/ adjoint of
363      vector invariant setup
364    
365    checkpoint51f_post
366    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
367    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
368      of tracer Green's fucntions for ocean inversion project.
369    
370    checkpoint51f_pre
371    o Added on-the-fly spatial interpolation capability
372        "USE_EXF_INTERPOLATION" to pkg/exf.
373      - This is a temporary Cartesian-grid hack until
374        the super-duper ESMF coupler becomes available.
375      - See verification/global_with_exf/README for usage example.
376      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
377        flags and modified pkg/seaice accordingly.
378    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
379        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
380        non-local transport term.
381    
382    checkpoint51e_post
383    o pkg/mom_vecinv:
384      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
385      - add time-ave diagnostic of vorticity advection.
386    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
387    o atmospheric geopotential: - include water vapor effect;
388                                - use p^kappa in p* scaling.
389    o land pkg: read initial state from files.
390    o AIM : add stratospheric drag in the upper level
391    
392    checkpoint51d_post
393    o change function ILNBLNK (=> last non-blank char.) to return zero
394      (instead of the string length) when the string. char is empty
395    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
396    o modif's to restore TAMC compatibility
397      - avoid "_d" constructs in PARAMETER declarations
398      - avoid interrupting lines by comment lines
399    o Use cluster local disks for purely local I/O
400      vs. globally visible disks needed for ctrl stuff
401      (merged from ecco-branch)
402      - new active_file_loc... and mdsio_..._loc routines
403      - affected packages: autodiff, ctrl, grdchk, mdsio
404    
405    checkpoint51c_post
406    o introducing integer flag debugLevel
407      - debLevZero: suppress all output
408      - debLevA: standard
409      - debLevB: equivalent to current debugMode=.TRUE.
410    o introducing pathname variable mdsioLocalDir for mdsio
411      that can be specified at runtime
412      (relevant for cluster I/O to local disk)
413    `
414    >>>checkpoint51b_post
415    adjoint of ptracers
416    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
417    o extended state in checkpoint_lev?, etc.
418    o alternative ctrl/cost with tr1 or ptracer
419    o new comlev1_bibj_ptracers
420    o new ptracers.flow
421    o made ptracers_forcing same as external_forcing_s
422    o added verification for adjoint with ptracers
423      - adm. grdchk fail so far
424      - tlm. grdchk OK
425      - checked tapelev/comlev recomputations: OK
426    <<<checkpoint51b_pre
427    
428    checkpoint51a_post
429    o added code for biogeochemistry package
430      - new pkgs: dic, gchem
431      - new subroutine in ptracers
432    o modify code for biogeo packages
433      - in model/src and pkg/ptracers
434    
435    checkpoint51
436    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
437      - autodiff, ctrl, exf, grdchk, seaice
438      kept separate packages
439      - cost, ecco, obcs
440    o updating verification/internal_wave, verification/lab_sea
441      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
442    
443    checkpoint50i_post
444    o Preparing next differentiable checkpoint and sync
445      of MAIN vs. ecco-branch
446      - 1st step: this one is differentiable
447      - 2nd step: next(! not this) checkpoint will have updated packages
448                  from ecco-branch)
449    
450    checkpoint50h_post
451    o new package "land": provide surface BC for AIM.
452    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
453    o AIM: use true log-P extrapolation for near surface temp (= as in
454        F.Molteni paper) ; update aim.5l_cs output.
455    o New variable in PARM03 for more flexible pickups
456    o somewhat cleaned package initialisation sequence for
457      ctrl/ cost/ ecco/ in packages_... routines
458    
459    checkpoint50g_post
460    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
461      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
462      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
463        made the default because of faster convergence than ADI
464    
465    checkpoint50f_post
466    o exf totally restructured
467      - replaced all exf_set_ routines by one generic exf_set_gen.F
468        and made sure it's still differentiable
469      - split exf_getffields.F into new exf_bulkformulae.F
470      - exf_inscal_/exf_outscal_ suffixes consistent with field names
471      - updated adjoint/makefile and relevant verif. accordingly
472    
473    checkpoint50f_pre
474     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
475          + change Evap over land. (update aim.5l_cs output)
476     o added missing .cvsignores and made uniform across expts
477     o changed configuration of tidal_basin_2d expt
478     o added pkg/debug functions for tracing code in fatal crashes
479     o tidied pkg/monitor to use MONITOR_OPTIONS.h
480     o new fn in pkg/monitor to stop model if solution grows too big
481     o removed lots of single quotes from comments
482    
483    checkpoint50e_post
484    o make KPP work with PTRACERS
485     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
486       nearly a copy of kpp_transport_s
487     - there is no analogue to SurfaceTendencyS, so I have to use
488       gPtr(of the surface layer) instead
489    o add a new platform SunFire+mpi (SunFire 15000) to genmake
490    checkpoint50e_pre
491    
492    checkpoint50d_post
493    o change kpp output from multiple-record state files to single-record state
494      files analogous to write_state.F
495    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
496      analogous to the cg2d-related output.
497    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
498      so that writing to internal file fn (with length 512) fails.
499    checkpoint50d_pre
500    
501    checkpoint50c_post
502    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
503    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
504    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
505    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
506    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
507    
508    checkpoint50c_pre
509    Merging from release1_p13:
510    o bug fix for pkg/seaice dynamic solver
511    o Added SEAICE_initialHEFF to pkg/seaice
512    
513    checkpoint50b_post
514    o store u*,v* in gU,V instead of in guNm1,gvNm1
515    o in order to put the momForcing out of the Adams-Bashforth:
516      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
517      to timestep.F
518    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
519    o re-generate output for highly sensitive test-exp:
520       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
521    
522    checkpoint50b_pre
523    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
524    o corrected CPP option mismatch in exf_Bulk... functions for case
525      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
526    
527    checkpoint50a_post
528    o Bug fix for merging between c50 and KPP.
529      ikey was passed from thermodynamics to kpp_calc via
530      common block rather than being recomputed in kpp_calc,
531      in contradiction with new key itdkey.
532      New key ikppkey created, and tamc.h headers updated.
533    
534    checkpoint50
535    - 2nd step of merge with ecco-branch:
536      merge changes in ecco-branch back into main trunk
537    - bug fix in find_alpha
538    - more storing in gmredi_calc_tensor.F, kpp_routines.F
539    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
540    - merged some sliced AD support routines
541    
542    checkpoint49
543    merged from ecco-branch:
544    o exf:
545      - Enable initialisation of forcing fields to constant
546        (runtime) values.
547      - in exf_getffields.F
548        Reduce i-/j-loop to interior domain, discarding overlaps.
549        That also fixes wrong TAF-key computations for key_1, key_2
550        with bulf formulae.
551      - exf_init.F modify #ifdef for exf_init_evap
552      - exf_getffieldrec.F, ctrl_getrec.F
553        The following INT-usages are not safe:
554          fldsecs  = int(fldsecs/fldperiod)*fldperiod
555          fldcount = int(fldsecs/fldperiod) + 1
556        and were modified.
557    o autodiff: checkpoint_lev...
558      - updated storing for bulk formulae (some arrays were missing)
559      - added state for seaice package
560      - synchronized with main branch
561    o DIVA:
562      Modif.s in
563      - the_main_loop.F
564      - the_model_main.F
565      and added cost_final_restore.F cost_final_store.F
566      o With these changes, it is possible to fully separate
567        the first forward run to compute the cost function (mdthe_main_loop)
568        and adjoint runs over individual DIVA intervals (adthe_main_loop)
569        into separate model executions.
570        This enables better tuning of DIVA to given queue sizes.
571      o Loss of cost function value in consecutive DIVA runs is
572        fixed by storing to 'costfinal' file.
573      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
574        beginning/end of adjoint integration is accounted for.
575      The current changes apply to TAF-1.4.26.
576      TAF has one remaining bug, requiring one manual change
577      (see MITgcm manual).
578    o cal: synchronized between MAIN and ecco-branch
579    
580    checkpoint48i_post
581    o Changes to restore differentiability of code w.r.t. previous tag
582      (mostly adding new routines to make list and replacing
583      pressure by totPhiHyd).
584    o Updated and merged grdchk package
585      - has both ADM and TLM checks
586      - works for single- and multi-proc.
587      - output cleaned
588      - worked successfully for parallel DIVA
589    o genmake:
590      - Adding -platform=SP4
591      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
592    o Modif. for DIVA:
593      ctrl_unpack should not be called in intermediate DIVA interval.
594      (similar thing would apply for active files such as
595      tbar, sbar, psbar, which should not be reinitialised;
596      only relevant for ecco-branch)
597    
598    checkpoint48h_post
599    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
600    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
601    o Added SEAICE_initialHEFF to pkg/seaice
602    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
603    
604    checkpoint48g_post
605    --- EOS:
606    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
607      store total Potential in totPhyHyd for diagnostics & EOS.
608    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
609    --- Pressure/geopotential gradient:
610    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
611    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
612      ( changes results of global_ocean_pressure )
613    o NLFS + z-coord.: add eta*Rho' contribution.
614    o accurate phiHyd when using interface-W at the middle between 2 centers
615     ( changes results of ideal_2D_oce )
616    o includes r* 2nd term in potential gradient.
617    
618    checkpoint48f_post
619    Merging from release1_p12:
620    o Modifications for using pkg/exf with pkg/seaice
621      - improved description of the various forcing configurations
622      - added basic radiation bulk formulae to pkg/exf
623      - units/sign fix for evap computation in exf_getffields.F
624      - updated verification/global_with_exf/results/output.txt
625    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
626      (SBO) core products, including oceanic mass, center-of-mass,
627      angular, and bottom pressure (see pkg/sbo/README.sbo).
628    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
629      to avoid negative values in shallow regions.
630      - updated verification/natl_box/results/output.txt
631      - updated verification/lab_sea/results/output.txt
632    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
633    o Added useSingleCpuIO option (see PARAMS.h).
634    o Updated useSingleCpuIO option in mdsio_writefield.F to
635      work with multi-field files, e.g., for single-file pickup.
636    o pkg/seaice:
637      - bug fix in growth.F: QNET for no shortwave case
638      - added HeffFile for specifying initial sea-ice thickness
639      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
640    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
641      kpp_transport_t.F, forward_step.F, and the_main_loop.F
642    o pkg/seaice:
643      - adjoint-friendly modifications
644      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
645    
646    checkpoint48e_post
647    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
648    o dynamics: change definition of computational domain & adapt mom_fluxform
649      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
650    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
651        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
652        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
653        global_ocean.90x40x15 global_with_exf global_ocean_pressure
654        inverted_barometer solid-body.cs-32x32x1
655      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
656    
657    checkpoint48d_post
658    o in preparation for r*:
659     a) use pre-computed gradient of hydrostatic potential:
660        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
661     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
662        => affects results of glob_oce_pressure (different truncation error)  
663      update output.txt of ideal_2D_oce & global_ocean_pressure
664    
665    checkpoint48d_pre
666    o in preparation for r*:
667      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
668      pass the 2 comp. of the grad. as arguments to momentum S/R.
669      but for the moment, only used if it does not change the results.
670    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
671    
672    checkpoint48c_post
673    Modifications in treatment of initial flux forcing controls
674    to avoid extra storing of flux fields.
675    
676    checkpoint48c_pre
677    o Added tidal_basin_2d experiment (currently 1D!)
678    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
679    
680    checkpoint48b_post
681    o r* coordinate added in #ifdef NONLIN_FRSURF block.
682     (modification to pressure gradient not yet implemented)
683    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
684      (for U & V) that are used for vertical advection of momentum.
685    
686    checkpoint48a_post
687    o In preparation for r*, use temp. array to compute vertical transport
688       in flux-form momentum pkg. => change results of few test-exp.
689      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
690                        lab_sea, natl_box & plume_on_slope
691    
692    checkpoint48
693    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
694    
695    checkpoint47j_post
696    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
697    o moved adexch from forward_step to addummy_in_stepping
698    o added exch in ctrl_map_...
699    o aveFreq.=0. at end of cost_final to avoid overwrite in
700      reverse checkpointing loop
701    o Yet more changes in gmredi:
702      * adgmredi_calc_tensor
703        avoiding all recomputation of gmredi_slope_limit
704      * adgmredi_x/y/rtransport
705        added flag for excessive storing to avoid recomp. of
706        u/v/rtans, dTdx/y/z
707        -> this is not really necessary and very memory-consuming
708      * adgmredi_slope_psi:
709        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
710      * gmredi_slope_limit
711        re-activated full calculation of taperfct for case 'ac02'
712    o updating verification/ adjoints of carbon, global_ocean.90x40x15
713    
714    checkpoint47i_post
715    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
716    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
717      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
718    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
719    o gmredi: fix few bugs.
720    
721    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
722    This will be a good checkpoint to plug into the ecco-branch.
723    o few modif.'s to get latest version adjointed
724      (mainly kick out code in ini_linear_phisurf)
725    o modif's to run adjoint with exactConserv
726    o case GM_BOLUS_ADVEC should be cleaned
727      S/R gmredi_slope_psi should be cleaned
728    o verification/carbon now has exactConserv=.TRUE.
729    
730    checkpoint47g_post
731    o time-average AIM output: becomes independent from statvars time-average
732      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
733    o After TAF bug fix:
734      Tested adjoint of gmredi package.
735      Tests were done with checkpoint47 rather than with latest
736      checkpoint47f_post since the latter is broken for the adjoint
737      verification/carbon/ contains both ADM and TLM gradient checks.
738    Here they are, before they get changed/lost/stolen.
739    Mostly modif.'s to fix numerical sensitivities.
740    Gradient checks OK for
741    - GM_taper_scheme:
742      * clipping
743      * ac02
744      * linear
745      * glw91
746      * dm95
747      * ldd97
748    - GMREDI_OPTIONS:
749      * GM_VISBECK_VARIABLE_K
750      * GM_NON_UNITY_DIAGONAL
751      * GM_EXTRA_DIAGONAL
752      * GM_BOLUS_ADVEC
753    in conjunction with data.gmredi parameters to be checked in
754    in a few minutes under verification/carbon/code/
755    
756    checkpoint47f_post
757    Merging from release1_p10:
758    o modifications for using pkg/exf with pkg/seaice
759      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
760        and SEAICE_EXTERNAL_FLUXES
761      - pkg/exf CPP options EXF_READ_EVAP and
762        EXF_NO_BULK_COMPUTATIONS
763      - usage examples are Experiments 8 and 9 in
764        verification/lab_sea/README
765      - verification/lab_sea default experiment now uses
766        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
767    
768    checkpoint47e_post
769    o created a tag prior to creating a branch
770    
771    checkpoint47d_post
772    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
773      at the bottom boundary had an erroneous half slip boundary condition
774    o added bottom drag and no slip boundary condition capabilities to
775      oceanic pressure coordinates code
776    o added new verification experiment global_ocean_pressure, this experiment is
777      also described in the tutorial section of the manual
778    checkpoint47d_pre
779    
780    checkpoint47c_post
781    o Added a verification experiment for a global cubed-sphere ocean run
782      -  verification/global_ocean.cubed32x32x30
783      -  uses pkg/therm_seaice and pkg/bulk_forcing
784    
785    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
786    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
787      when using P-coordinate; only implemented for atmospheric config.
788    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
789      NOTES: requires option NONLIN_FRSURF to be "#define".
790    o update advect_xz/results/output.txt (left from checkpoint44g_post)
791    
792    checkpoint47b_post
793    Merging from release1_p9:
794    o pkg/seaice
795      - removed GOTO's and added taf directives
796      - double precision constants to reduce the g77 (Linux)
797        to F77 (SGI) differences reported in release1_p8
798    o tools/genmake
799      - added SGI options
800    o verification/testscript
801      - updated to that of checkpoint47a_post
802    o verification/global_ocean.90x40x15/input/eedata
803      - modified for SGI f77 compatibility
804    o verification/lab_sea
805      - added description of sea-ice model
806      - added missing matlab routines
807      - added test of thermodynamics parallelization
808    
809    checkpoint47a_post
810    o new pkg: aim_v23
811     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
812       for now, keep the same surface forcing as before.
813     - Part-Cell implemented into AIM; check that Heat & Water are conserved
814     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
815     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
816    o add diagnostic of surface correction term in monitor output
817    
818    o bulk_force and therm_seaice
819    - Two packages:  bulk_force (Bulk forcing)
820      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
821    - Earlier integration from Stephaine Dutkiewicz
822      and Patrick Heimbach.
823    - Two ifdef statements for compile time,
824       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
825    
826    checkpoint47
827    differentiable version of checkpoint46n_post
828    o bug fix in quasihydrostaticterms
829    o * "clean" adjoint code (in terms of extensive recomputations)
830        can now be obtained for all GMREDI options (i.e. for
831        - GM_VISBECK_VARIABLE_K
832        - GM_NON_UNITY_DIAGONAL
833        - GM_EXTRA_DIAGONAL
834        - GM_BOLUS_ADVEC )
835      * However, wrong gradient check problem remains unsolved.
836      * New CPP options have been introduced for different
837        tapering schemes
838    o external_fields_load now part of differentiation list
839    o pressure needs multiple storing;
840      would be nice to have store_pressure at beginning or
841      end of forward_step, e.g. by having phiHyd global (5-dim.)
842      (NB: pressure is needed for certain cases in find_rho,
843      which is also invoked through convective_adjustment).
844    o recomputations in find_rho for cases
845     'JMD95'/'UNESCO' or 'MDJWF' are OK.
846    o #define ATMOSPHERIC_LOADING should be differentiable
847    o ini_forcing shifted to begining of initialise_varia
848    o Incorporating QNVS line search routines into MITgcm
849      (this is separate code, and therefore not under pkg)
850      lsopt/, optim/
851    o Updated verification/carbon/
852      - #define GM_VISBECK_VARIABLE_K
853      - GM_taper_scheme    = 'ldd97'    
854    
855    checkpoint46n_post
856    Merging from release1_p8:
857    o verification/natl_box:
858      updating new external_fields_load routine
859    o New package: pkg/seaice
860      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
861      The sea-ice code is based on Hibler (1979-1980).
862      Two sea-ice dynamic solvers, ADI and LSR, are included.
863      In addition to computing prognostic sea-ice variables and diagnosing
864      the forcing/external data fields that drive the ocean model,
865      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
866      The implied surface heat flux is then stored in variable
867      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
868      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
869      non-local transport term.  Because this call precedes model
870      thermodynamics, temperature under sea-ice may not be "exactly" at
871      the freezing point by the time theta is dumped or time-averaged.
872      N.B.: fairly large differences in accuracy occur across
873            different platforms/compilers; comparison between
874            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
875            generated output gives:
876       T           S           U           V
877      C D M    c        m  s        m  s        m  s        m  s
878      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
879      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
880      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
881    
882      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
883    o GAD:
884      - generated new common blocks to account for call of
885        same gad routines with differing traceridentities
886        (needed to modify tracerIdentity indices in GAD.h)
887      - generated separate common blocks for case useCubedSphereExchange
888        (Department of Futurology)
889      - parameter lists to gmredi_?transport: added tracerIdentity
890      - added new key indices to tamc.h
891    o external_fields_load:
892      - added this routine to TAF list
893      - needed to make some common blocks global and additional storing
894        along the same lines as exf package (checkpoint_lev?_directives.h)
895    o exf:
896      updated external forcing package
897      - bug fixes carried over from ecco-branch
898        (missing OBCS_OPTIONS.h in two routines)
899      - enable easy to use "no forcing".
900      - added exf I/O for atmospheric loading
901      - added exf I/O for runoff data
902      - transfered scaling between exf <-> MITgcm to exf namelist
903    o Adding new verification experiment global_with_exf.
904      This verification experiment is almost identical to the
905      global_ocean.90x40x15 experiment, except that it uses
906      the exf (and cal) package instead of the
907      external_fields_load routine (cf README file).
908    
909    checkpoint46m_post
910    o modified testscript to return -- when there are no lines of "%MON" output
911    o added new flag "quasiHydrostatic" for QH mode
912      and new routine quasihydrostaticterms()
913    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
914      New routine: mom_u_coriolis_nh()
915    o fixed sign of non-hydrostatic metric terms in u and v equations.
916      Depend on correct sign of gravitySign.
917    o added work.pc* to .cvsignore in aim directories using ifc
918    o introduced flag for controllin non-hydrostatic metric terms
919    o removed gravitySign from PARM04
920    o switched to g77/ifc from pgf77 in aim experiments
921    
922    checkpoint46l_post
923    o made convective adjustment work with pressure coordinates:
924     - changed the direction of k-loop in convective_adjustment.F for the
925       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
926     - adjusted the reference pressure k-index in convective_adjustment.F
927     - adjusted the convection condition in convect.F (in analogy to
928       calc_ivdc.F)
929     - convective_adjustment no longer computes anything on the halos
930     - removed the warnings about negative salinity from find_rho.F and
931       find_alpha.F; instead the new routine look_for_neg_salinity, called
932       at the beginning of find_rho, find_alpha, and find_beta, does a
933       check of the entire slice, if CPP-option
934       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
935    checkpoint46l_pre
936    
937    checkpoint46k_post
938    o fixed the verification/global_ocean.90x40x15 experiment:
939     - new bathymetry (the world according to A., JMC, and M.)
940     - new initial fields and forcing fields (*.bin files)
941     - new POLY3.COEFFS (for the next release one should switch to a full
942       equation of state: JMD95P or MDJWF)
943     - fixed several errors and redundancies in the data file
944     - experiment uses looped cells
945     - added matlab directory with diagnostic scripts for plotting of output
946    
947    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
948     - read AIM physics parameters from a file (data.aimphys)
949     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
950    
951    checkpoint46j_post
952    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
953    o move wVel computation at the end of the time step, in S/R integr_continuity
954    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
955    o update timeave pkg for wVel diagnostic.
956    checkpoint46j_pre
957    
958    checkpoint46i_post
959    o Clean up AIM package (and keep the results unchanged):
960      include CPP_OPTION and use IMPLICT NONE in all routines ;
961      declare all the variables _RL ; use _d 0 for all numerical constants.
962      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
963    
964    checkpoint46h_post
965    o cleaned up the use of rhoNil and rhoConst.
966      - rhoNil should only appear in the LINEAR equation of state, everywhere
967        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
968        and the dynamical equations are all divided by rhoConst
969    o introduced new parameter rhoConstFresh, a reference density of fresh
970      water, to remove the fresh water flux's dependence on rhoNil. The default
971      value is 999.8 kg/m^3
972    o cleanup up external_forcing.F and external_forcing_surf.F
973      - can now be used by both OCEANIC and OCEANICP
974    checkpoint46h_pre
975    
976     Added code to convert surface volume flux (fresh water) into
977     a mass flux when using P coordinates in the ocean (OCEANICP).
978     Note: It assumes you have set rho0=rhoConst=density of fresh water.
979    
980    checkpoint46g_post
981    o Include a new diagnostic variable phiHydLow for the ocean model
982      - in z-coordinates, it is the bottom pressure anomaly
983      - in p-coordinates, it is the sea surface elevation
984      - in both cases, these variable have global drift, reflecting the mass
985        drift in z-coordinates and the volume drift in p-coordinates
986      - included time averaging for phiHydLow, be aware of the drift!
987    o depth-dependent computation of Bo_surf for pressure coordinates
988      in the ocean (buoyancyRelation='OCEANICP')
989      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
990        Theta, Salinity, and Pressure in the parameter list. This routine is
991        presently contained in find_rho.F. This routine does not give the
992        correct density for 'POLY3', which would be a z-dependent reference
993        density.
994    o cleaned up find_rho
995      - removed obsolete 'eqn' from the parameter list.
996    o added two new verification experiments: gop and goz
997      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
998    checkpoint46g_pre
999    
1000    checkpoint46f_post
1001    o Enable tangent linear (forward mode) gradient checks:
1002      - extended active file handling to g_... files
1003      - added TANGENT_SIMULATION to theSimulationMode
1004      - extended grdchk package accordingly
1005    o added tangent linear setup in verification/carbon/code_ftl
1006    o added adjoint setup in verification/front_relax/code_ad
1007    
1008    checkpoint46e_post
1009    o Added new equation of state -> MDJWF
1010      - EOS of McDougall et al., 2002, JAOT, submitted
1011      - caveat: the equation of state is only valid for a smaller (more
1012        realistic?) range of values than JMD95P/Z and UNESCO
1013      - added masks to the calculation of pressure in store_pressure
1014      - added more check values for density in check_eos (ini_eos.F), some of
1015        the old check values are out of the range of the MDJWF-eos, so don't
1016        expect perfect matches for those
1017    checkpoint46e_pre
1018    
1019    checkpoint46d_post
1020    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1021      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1022      case of pressure coordinates. eosType='JMD95Z' in
1023      combination with buoyancyRelation='OCEANICP' now causes an error.
1024    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1025      in find_alpha/beta.
1026    checkpoint46d_pre
1027    
1028    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1029      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1030    
1031    checkpoint46c_post
1032    o Changes necessary for ocean in p-coordinates
1033     -  Added new buoyancy relation = 'OCEANICP'
1034     -  Added new parameters = gravitySign (this used to be contained inside
1035        the factor dRdZ which I added when we first switched to R coordinates).
1036     X GM/Redi is not compatible (yet)
1037     X bottom drag and no-slip need to be debugged.
1038    checkpoint46c_pre
1039    
1040    checkpoint46b_post
1041    o Added new equation of state -> JMD95Z and JMD95P
1042      - EOS of Jackett and McDougall, 1995, JAOT
1043      - moved all EOS parameters into EOS.h
1044      - new routines ini_eos.F, store_pressure.F
1045    o Added UNESCO EOS, but not recommended because it requires
1046      in-situ temperature (see JMD95)
1047    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1048      unesco.f to be used with POLY3
1049    checkpoint46b_pre
1050    
1051    checkpoint46a_post
1052    o Added (atmospheric) pressure loading
1053      - new field in FFIELDS.h, etc...
1054      - new cpp flag ATMOSPHERIC_LOADING
1055    o Changed hFacC to _hFacC in calc_phi_hyd.F
1056    o Added SHORTWAVE_HEATING to some files for consistency
1057    checkpoint46a_pre
1058    
1059    checkpoint46
1060    further merges from release1_p5
1061    o new ctrl package
1062      - adopted from ECCO environment to enable optimization
1063      - added Eliassen Palm fluxes to controls
1064    o added Eliassen Palm flux controls to gradient check package
1065    o cost package
1066      - Compatible with new ctrl package
1067      - added Eliassen Palm cost hooks
1068      - modif's of existing cost functions
1069    o Adjoint-related bug fixes in kpp:
1070      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1071      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1072    o autodiff package
1073      - flow directives:
1074        + new for S/R do_the_model_io
1075        + enhanced for S/R checkpoint
1076        + new gmredi.flow
1077      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1078        disable adcommon.h/g_common.h by default.
1079      - fixed problem for adjoint of global_max
1080    o modified verification/carbon/
1081    o New setup for adjoint of global_ocean
1082    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1083    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1084    o incorporated hooks for sponge layer code (external_forcing.F)
1085    
1086    checkpoint45d_post
1087    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1088    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1089      (affects plume_on_slope "cg2d" output)
1090    o add new parameter deltaTfreesurf for free-surface time stepping
1091    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1092    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1093    o change phiMin in exp1 (to agree with documentation)
1094    o add new flags:
1095     - T,S forcing inside/outside Adams-Bashforth
1096     - turn off temp,salt advection and/or forcing
1097     - for each tracer, define internal flag for multiDimAdvection & A-B
1098    o monitor: change definition of KE to check conservation of Energy
1099    
1100    checkpoint45c_post
1101    o Removed f90 comments ("!")
1102    o Modified initialisations to enable exf package for MITgcm
1103      (without invoking ECCO_PACKAGE).
1104    o modifications to gradient check package (Martin Losch)
1105      - enable centered differences
1106      - modified format of standard output
1107    
1108    checkpoint45b_post
1109    o cleaned exchange calls in cg2d
1110    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1111    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1112      to configure barotropic setup (Martin Losch)
1113    o moved some initialisations within bi,bj loop in dynamics
1114      (TAF flow dependency)
1115    o in initialise_varia, moved call packages_init_variables
1116      before convective_adjustment_init
1117      (corresponding adjustment of TAF tape initialisation).
1118    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1119    
1120    checkpoint45a_post
1121    o compute Rho over the whole domain (extend iMin,jMin indices)
1122    o specific exchange for X-slice domain (case Ny=1)
1123    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1124    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1125    
1126    checkpoint44h_post = checkpoint45
1127    o Fix to restore differentiability:
1128      place at which packages_init_variables is called in
1129      initialise_varia is crucial for reverse control flow.
1130    o modifications in GMRedi to enable stable adjoint
1131      (corresponding modif's in thermodynamics, dynamics)
1132    o added missing hook for sponge layer code in external_forcing
1133    o modified test cost functions
1134    o storing in gad_advection (plus removal of write(0,*)!
1135    o missing headers TR1.h added in convective_adjustment routines
1136    o errorMessageUnit set non-equal zero in eeboot
1137      (conflict on some platforms, e.g. IBM SP3)
1138    o modified carbon verif.
1139    
1140    checkpoint44h_pre
1141    o vertical grid option: allow to put the Interface at the middle between
1142      2 cell-centers ; replace delZ in pkg/kpp by drF.
1143    o GM Advective form: Tracers are advected using the residual transport (=
1144      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1145    
1146    checkpoint44g_post
1147    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1148      results) ; ifdef missing in thermodynamics.F
1149    
1150    checkpoint44f_pre,checkpoint44f_post
1151    o added PTRACERS package
1152      This allows an arbitrary number of passive tracers to be integrated
1153      forward simultaneously with the dynamicaly model.
1154      + Implemented so far:
1155        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1156        - I/O and checkpointing
1157        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1158      + Not implemented so far:
1159        - KPP
1160        - OBCS
1161      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1162        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1163        line in data.pkg.
1164      + This package is disabled by default since it increases storage.
1165    
1166    
1167    o testscript: added -cleanup option
1168    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1169                 b) enable to filter 2D fields.
1170    
1171    checkpoint44e_pre,post
1172    o re-wrote convective adjustment to use pre-calculated weights
1173      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1174      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1175      Original calls to convect() still in place.
1176    
1177    chkpt44d_pre,post
1178    o added missing EXCLUDE_MONITOR flags
1179    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1180      (incompatible typ in MIN/MAX expressions caused problems
1181      on IBM SP3)
1182    o in genmake added variable MAKEDEPEND
1183      plus resetting for case SunOS
1184    o added timer_stats.c routine for IBM SP3
1185    o removed variables in dynamics
1186    !!! I forgot to create tag chkpt44d_pre !!!
1187    !!! But chkpt44d_pre = chkpt44c_post    !!!
1188    
1189    o real fresh water flux implemented with non-linear free-surface.
1190    
1191    chkpt44c_pre,post
1192    o few fix (mask in shap_s2, EmPmR in external_field_load,
1193      USE_NATURAL_BCS in solve_for_P);
1194    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1195    
1196    checkpoint44b_pre/_post
1197    o merge of relevant stuff from the ecco-branch:
1198      - genmake: removed $S64 overwrite for case SunOS
1199      - pkg/exf: update and corrections for field swapping and obcs
1200      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1201                  harmonized between ECCO and MITgcm
1202      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1203                      updated checkpointing_lev... lists for obcs
1204      - model/src: minor changes in forward_step, plot_field
1205                   added directive for divided adjoint in the_main_loop
1206      - pkg/mdsio: added mdsio_gl_slice
1207    
1208    o check parameters & config (chkpt44a_pre,post)
1209    o OBC and NonLin_FrSurf.
1210    
1211    checkpoint44
1212    o fix bug in mom_vi_del2uv
1213    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1214    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1215    o update AIM experiments (NCEP input files)
1216    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1217    o added some stuff for AD
1218    
1219    checkpoint43
1220    o added two new advection tests
1221    o added global 4x4 degree ocean test
1222    o added test of H&S94 with free surface on cube
1223    o some final mods for gradient check, adjoint,...
1224    
1225    checkpoint42
1226      Fixed AD-related problems:
1227    o Store directives up-to-date with re-arranged Adams-Bashforth
1228      (mainly thermodynamics.F)
1229    o New store directives for multi-dim. advection schemes
1230      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1231      * new common block and key passkey
1232      (mainly gad_advection.F)
1233    o Modified store directives for split of dynamics/thermodynamics
1234      for the case ALLOW_KPP
1235    o Cleaned argument list for timestep_tracer.F
1236    
1237    checkpoint41
1238    o re-formatted/added comments in prologues of key subroutines
1239      to work with protex
1240    
1241    checkpoint40
1242    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1243    o added FLT (floats) package from Arne along with demo. experiment
1244    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1245      implementation of forward-in-time forcing terms
1246    o more mods for non-linear free-surface including new variable
1247    o modified multi-dim method to work on cube
1248    o bug fix in KPP (from DM)
1249    
1250    checkpoint40pre9
1251    o added DST advection schemes
1252    o fix MPI bug on SGI's
1253    o modifications for non-linear free-surface
1254    o fixed conditionals for fixed flow/passive tracer only mode
1255    o added tension/strain form of stress tensor
1256    o changes to commenting of arguments for TAF/TAMC
1257    o added/updated many matlab scripts
1258    o added multi-dimensional advection method for tracers
1259      
1260    checkpoint40pre8
1261    o new package rw/
1262      Added method for dumping intermediate local arrays:
1263      mdsio_writetile - same as mdsio_writefield except works from inside
1264                        bi,bj loop
1265      mdsio_writelocal - same as mdsio_writetile except works for local
1266                         arrays
1267      write_local_r? - higher-level wrapper for mdsio_writelocal
1268      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1269      Example given at end of mom_vecinv.F that dumps some local arrays.
1270    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1271      control flux-form versus vector invariant code.
1272      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1273      or genmake -DISABLE ...
1274    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1275      (additional storing is now needed for case vecinv;
1276      currently nothing implemented to switch this storing off
1277      in case fluxform is used since no CPP flag available).
1278    
1279    checkpoint40pre7
1280    o bug fix in dynamics.F
1281      calc_viscosity called before k=1,Nr loop.
1282    o added some #ifdef's ALLOW_PASSIVE_TRACER
1283    o cleaned initialisations in ctrl_map_ini
1284      related to TAF
1285    
1286    checkpoint40pre6
1287    o split dynamics into thermodynamics & dynamics
1288    o corresponding split of calc_diffusivity into
1289      calc_diffusivity, calc_viscosity
1290      (kpp_calc_diff, kpp_calc_visc).
1291    o Added diffkr, kapgm to control variables
1292    o bug fix in gmredi_slope_limit for ldd97
1293    
1294    checkpoint40pre5
1295    o proper initialization of Adams-Bashforth time stepping
1296      + uses forward step for very first step of model (iter=0)
1297    o re-generated *all* output since almost all output is modified by this
1298      change (sorry but we've been putting this one off for about 2 years)
1299      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1300        *not* regenerated since they are already out of date and I don't
1301        want to create the impression that they are suddenly working.
1302    o removed KAP stuff for DEC's
1303    o modified/added many .cvsignore files in */code and */input
1304    o added new expt "solid-body.cs-32x32x1"
1305      + this uses an alternative form of ini_curvilinear_grid.F which
1306        is not necessarily any better than the current one...
1307    
1308    checkpoint40pre4
1309    o added re-initialisations of utrans,vtrans,rtrans in
1310      calc_common_factors which are crucial for TAF.
1311    o extended iMin,jMin range for calc_common_factors,
1312      calc_diffusivity
1313    o added option ALLOW_PASSIVE_TRACER
1314    o a few minor updates and fixes
1315    
1316    checkpoint40pre3
1317    o created calc_gtr1.F for gad package
1318    o split the_main_loop and re-introduced forward_step
1319    o some recomputations of nIter0 for TAMC
1320    
1321    checkpoint40pre2
1322    o Updated to latest branch of AJA, JMC
1323    o Added gradient check package
1324    o Added routines for passive tracer handling
1325    o Added carbon sequestration sensitivity experiment
1326    
1327    checkpoint39
1328     o Modifications and fixes to support TAMC
1329       (mainly missing or wrong directives)
1330     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1331       in addummy_in_stepping
1332     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1333     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1334     o Included following packages:
1335       cal: calendar
1336       exf: external forcing
1337       ecco: essential routines to control use of cal, exf
1338             (NB: this is not the full ECCO environment)
1339     o disabled some packages by default in genmake
1340    
1341    checkpoint38
1342     o see notes_c37_adj.txt
1343     o corrected wrong layer index in external_forcing_t
1344     o replaced the_main_loop/forward_step by the_main_loop
1345     o removed forceoutput from write_state
1346       (replaced criteria for initial/final state)
1347     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1348    
1349    checkpoint37
1350     o mdsio.F routine split and packaged in pkg/mdsio
1351       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1352        used unless genmake -disable=mdsio)
1353     o allow a more precise surface-geopotential gradient for the atmosphere
1354       taking into account the change in space of Alpha (=1/rho) at the surface.
1355     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1356       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1357     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1358       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1359       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1360     o Time-Average diagnostics defined as a pseudo package "timeave".
1361     o pickup files : old pickup (before c35) did not work with new code (c35
1362       and after) unless activating 2 commented lines in initialise-varia.
1363     o Non-Hydrostatic pickup file Pb fixed.
1364     o bug with Rigid-lid version (since c35) fixed.  
1365    
1366    checkpoint36
1367     o implement Crank-Nickelson barotropic time-stepping
1368     o recover Time-Average diagnostics
1369     o fix Pb in checkpoint (PR#19)
1370     o AIM become a standard package ; clean unused CPP_kees
1371    
1372    checkpoint35
1373     o subtantial rewrite of dynamics.f
1374     o allows staggered time-stepping
1375     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1376     o added bottom drag (linear + quadratic)
1377    
1378    checkpoint34
1379     o Modified exchange routines for correct reverse simulation.
1380     o Added verification output to comply with bug fix in impldiff.F
1381       as of c33 (exp2, natl_box).
1382     o Corrected store directives in dynamics.F
1383     o Corrected array boundaries in impldiff.F
1384     o Corrected array dimensions in gmredi.
1385       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1386     o Added routine GLOBAL_SUM_INT to global_sum.F
1387     o Added mdsio_gl.F for ECCO purposes.
1388    
1389    checkpoint33
1390     o Fixed bug in lower BC in impldiff.F
1391     o Fixed confusion about units of forcing arrays in FFIELDS.h
1392       namely Fu,Fv,Qnet,Qsw,EmPmR:
1393       - Removed verification/natl_box/code/external_fields_scale.F
1394         (did not differ from that in model/src)
1395       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1396         (see FFIELDS.h for description)
1397       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1398         kpp_calc.F and kpp_transport_t.F
1399       - Removed model/src/external_fields_scale.F and calls to it
1400       - verification/natl_box uses flux data with "atmospheric" sign so
1401         a special version of external_fields_load.F is used to
1402         change the data as it's read in. This way, the arrays
1403         have the right units and signs at all times tha a user could
1404         possibly use them.
1405     o Corrected genmake to delete a temporary file during configuration
1406    
1407    checkpoint32
1408     o Scaling of forcing fields moved from external_forcing.F to
1409       external_fields_scale.F, called directly after loading fields.
1410     o Surface relaxation terms added to surface tendency fields in
1411       extra subroutine.
1412     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1413       fields.
1414     o Changes in GMRedi to comply with packaging structure.
1415     o Modifications and bug fixes in KPP package.
1416     o Verification experiment for KPP added (verification/nat_box/)
1417    
1418    checkpoint31
1419     o Packages interface brought in line with defined standard
1420       -> new routines packages_...F
1421       -> changes in initialise_fixed.F, initialise_varia.F
1422       -> enables initialisation interface for ECCO package
1423     o Rescaling of external forcing fields immediately after read
1424       (removed from external_forcing.F)
1425       -> new: surface_fields_scale.F
1426       -> affects ini_foorcing.F, external_fields_load.F
1427     o Computation of surface tendencies before tendency updates.
1428       -> new: external_forcing_surf.F
1429     o Change of variable names useGMRedi, useKPP, useECCO
1430     o Further changes in dynamics.F, impldiff.F for TAMC
1431     o Tested for experiments 0, 2, 4.
1432       - not yet tested for GMRedi.
1433       - not yet tested for KPP.
1434    
1435    checkpoint30
1436     o Updates for OBCs
1437     o New experiment for test OBCs (internal_wave)
1438     o New output.txt in verification/exp4/results/
1439     o Updates for KPP: calculation of viscosity corrected, new variables
1440       kpp_dumpFreq and kpp_taveFreq
1441     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1442       and entry for T90 in genmake
1443    
1444    checkpoint29
1445     o packaged KPP and GM/Redi
1446    
1447    checkpoint28
1448     o Corrected initialization of hFacMin for difference vertical coordinates
1449     o Modified calculation of partial cell thickness to more robust algorithm
1450     o config_summary.F: replaced write_1D_... by write_0D_...
1451       read_write.F: added subroutines write_0D_...
1452     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1453       included some initialisations required for TAMC.
1454     o routine calc_isoslopes: modified sqrt computation to make it
1455       differentiable for zero argument.
1456     o routines dynamics, impldiff:
1457       included store directives and tape key computations required for TAMC.
1458     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1459    
1460    checkpoint27
1461     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1462       formulation works properly with variable resolution.
1463     o restructured the calling tree between the_model_main() and dynamics()
1464     o split initialise() into initialise_fixed() and initialise_varia()
1465     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1466       in new routine ini_psurf()
1467    
1468    checkpoint26
1469     o moved some #ifdef in optional routines to encompass everything
1470       except the argument declarations. This was using up some memory.
1471     o fixed macros like _ADT to work with both versions of Linux cpp
1472     o cleaned up some unused and uninitialized variables
1473       (helps when debugging with strict compile options)
1474     o split up CPP_EEOPTIONS.h into options and macros
1475       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1476     o patch for 2 processor JAM mode
1477    
1478    checkpoint25
1479     o updates for OBCs and NH
1480     o dramatically reduced memory usage
1481     o added "JAM" routines for use on Artic network
1482     o parameterization of convection by implicit vertical diffusion
1483     o added a diagnostic of convective index
1484     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1485       (this is was partly for OBCs and NH but also in anticipation of
1486        an explicit free-surface option)
1487     o initial state input files for U and V
1488    
1489    checkpoint24
1490     o Removed some spurious "REAL"s
1491     o Updated KPP to latest version from JPL
1492     o Added a COS(latitude) in horizontal viscosity
1493    
1494    checkpoint23
1495     o Added del^4 diffusion for salt and temperature
1496     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1497    
1498    checkpoint22
1499     o Made many small changes: implicit none, format(i5), etc...
1500     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1501    
1502    checkpoint21
1503     o Introduced new I/O package that supports direct-access records (mdsio.F)
1504     o Split-up mid-level I/O routines
1505     o Updated input data for experiments 0,1,2,4 and 5
1506     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1507    
1508    checkpoint20
1509     o Tidied up open-boundaries some more
1510     o Added non-hydrostatic code
1511     o Fixed some input data
1512     o Modified MPI start-up to work in "coupled" context.
1513    
1514    checkpoint19
1515     o Tidied up directory structure for verification experiments.
1516     o Added new code for open boundaries.
1517     o Corrected advective terms near boundaries.
1518     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1519     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1520     o Split default parameters out of ini_parms.F into set_defaults.F.
1521    
1522    checkpoint18
1523     o Further changes for optional code generation with
1524       CPP - ugh!
1525    
1526    checkpoint17
1527     o Beginning to incorporating modularity
1528       for supporting atmos. and ocean configs.
1529     o Small changes for TAMC complinace
1530     o New ultra simple test case. Barotropic box
1531       configuration "exp0".
1532    
1533    checkpoint16
1534     o Minor changes to exchange routines to support
1535       accumulation in reverse mode. Adjoint of an
1536       assignment is an addition.
1537     o Changes to support compilation by TAMC (LR(1)
1538       syntax) and by g77 under Linux ( 72 character
1539       limit ).
1540    
1541    checkpoint15
1542     Rewrote exchange routines to allow
1543     o General tile <-> tile connectivity.
1544     o TAMC reverse mode flag ( is this really needed? )
1545     o Variable width overlap and exchange region widths.
1546     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1547       shmput/shmget, VIA, SYSV shmem and every other cool
1548       communication method.
1549    
1550    checkpoint14
1551     Consistent isomorphism chages made. These allow dynamical core
1552     to support both pressure and meters as a vertical coordinate.
1553    
1554    checkpoint13
1555     Release which corrects global_max problem and a couple
1556     of KGM time-averaging diagnostic errors. Also contains
1557     a double-gyre experiment setup as well as the baseline
1558     4 degree global template. The double gyre template is
1559     organised to allow it to be applied automatically to
1560     the baseline configuration.
1561    
1562    branch-point-rdot
1563     A few tidy-ups have been made bt the real point of this
1564     check-point (excuse the pun) is to allow a branch to be
1565     made for the purposes of adding the rDot alterations.
1566     I don't want to commit the rDot to the main-trunk until
1567     we've actually tested it...
1568    
1569    checkpoint12
1570     Tidy up and added generic genmake script (formerly
1571     configure script).
1572     Released to testers.
1573    
1574    checkpoint11
1575     Re-arranged initialise() and introduced ini_vertical_grid()
1576     and ini_masks_etc().
1577    
1578    checkpoint10
1579     Introduced the configure script.
1580     Separated out the diags package.
1581     Added template for writing time-averages of tile/intermediate quantities.
1582     Updated SIZE.h in exp2 and made the data big-endian.
1583    
1584    checkpoint9
1585     MPI fix. Filename changes (meta/data). salbin*y stuff.
1586     General tidy-up.
1587     SST.bin SSS.bin added to verification/exp2
1588    
1589  checkpoint8  checkpoint8
1590   Inludes time-dependant forcing and time-averaging.   Inludes time-dependant forcing and time-averaging.
1591   Works at 4x4 and 2.8125x2.8125 global   Works at 4x4 and 2.8125x2.8125 global

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