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revision 1.7 by adcroft, Mon Jun 22 16:24:50 1998 UTC revision 1.260 by jmc, Thu Feb 26 00:05:44 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 mask vorticity at the corner ; affects global_ocean.cs output
7    o fix ini_curvilinear_grid ; test CS experiments with mpi
8    o aim.5l_cs: modify sea-ice fraction input file ; update output
9    
10    checkpoint52k_post
11    o removed top-level directory "diags"
12      - we migrated these functions to pkg/timeave a long time ago
13    o fixed bug introduced in pkg/monitor
14    o accuracy ctrlprec = 32 insuffient for gradient checks using
15      averaged fields (I/O via cost_averages)
16      -> use ctrl.h in active_file*.F to control I/O precision.
17    o paramter list of CALL ADTHE_MAIN_LOOP
18    o added initial do_the_model_io to ecco
19    o set all ...Freq to zero after cost_final
20      taveFreq, dumpFreq, pChkptFreq
21    o MAIN and ECCO differentiability restored
22    
23    checkpoint52j_post
24    o fix nchklev in tamc.h for global_ocean...
25    o Bringing flow and store directives up-to-date
26    o Really weird thing!
27      call do_the_model_io from the_main_loop with parameters
28      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
29      TAF places a faulty re-call of initialise_varia
30      after cost_final call which should not be there!
31    checkpoint52j_pre
32    
33    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
34      error messages
35    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
36    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
37      debug output
38    o modfied mdsio_writefield.F to handle non-global files under exch2
39    o update AIM Cubed-Sphere exp (aim.5l_cs):
40      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
41    o update AIM Equatorial Channel exp:
42      use standard aim_v23 pkg and change the SST fields to be more realistic.
43    o globalFile now works with exch2
44    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
45      mon_vort3.F to make exch2 friendly with >1 tile per cube face
46    o limit timeave output for hi-res integrations
47    
48    checkpoint52i_post
49    o removed CPP_EEOPTIONS.h from verification/*/code
50    o updated the tiling for global_ocean_pressure
51    checkpoint52i_pre
52    
53    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
54      the old pkg/aim).
55    
56    checkpoint52h_pre
57    o shortened offending lines in exch2_send_rx?.template
58    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
59    o genmake2: add build & execute test for NetCDF code
60    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
61      old grid files, moved CPP_EEMACROS.h to pkg/exch2
62    o added useSingleCPUIO flag to monitor.F and mon_out.F
63    o added temporary hack for sea-ice dynamics on the cube:
64      metric terms are ignored and it is assumed that
65      there is no sea-ice on cube faces 1, 2, 4, and 5.
66    
67    checkpoint52f_post
68    o added exch2 cube routines to pkg/exch2
69    o modified hs94.cs-32x32x5 to use it
70    o added new grid files to hs94.cs-32x32x5
71    checkpoint52f_pre
72    
73    checkpoint52e_post
74    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
75      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
76    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
77      to work with implicit vertical advection and AB ;
78    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
79    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
80     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
81    checkpoint52e_pre
82    
83    o fix bug in impldiff when Nr=1 or Nr=2.
84    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
85    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
86    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
87      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
88    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
89    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
90    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
91    
92    checkpoint52d_post
93    o re-tiled many expts to allow comparison in multi-processor mode
94      - updated output accordingly
95      - changed hs94.128x64x5 to use intial T from file rather than use the
96        random number generator
97    o add infrastructure in model routines for fizhi and gridalt packages
98    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
99    o changes to permit hi-res, cubed-sphere, configuration
100      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
101      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
102      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
103        of surface winds for the cube
104      (A verification experiment, based on global_ocean.cs32x15, but with
105       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
106       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
107       complete with example surface forcing files and matlab scripts to look
108       at the output and compare it with that of global_ocean.cs32x15.)
109    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
110       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
111       to conform to the common rule.
112    o check-in the first version of the coupler + interfaces for multi-components
113       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
114       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
115       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
116       - ocean and atmos. share the same horizontal grid (no interpolation).
117       - exchanges between component and coupler is done in forward_step
118    o new verification experiment, cpl_aim+ocn:
119       coupled ocean - AIM atmosphere on cs32 grid.
120    
121    checkpoint52d_pre
122    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
123    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
124    
125    checkpoint52c_post
126    o Fixing OPTIONS files for use of exf:
127      - ALLOW_ECCO not needed
128      - ECCO_CPPOPTIONS.h should not be included from
129        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
130        as has been the case in the past
131      - All cal/exf related options are currently set in
132        single header file. Should remain so until we
133        agree on a consistent new policy.
134    o Removed all CPP options for cal package.
135      cal has no more CPP options.
136    o modified STOREs in GAD_ADVECTION
137    o corrected key comp. for passkey
138    
139    checkpoint52b_post
140    o new version: "thsice" of thermodynamic sea-ice pkg:
141     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
142     - modify fluxes but do not change theta directly;
143     - light cleaning of bulk_force pkg (still needed with thsice).
144     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
145       + output_thsice.txt to test thsice & bulk_force pkgs.
146    o put back grid & coriolis monitor output.
147    checkpoint52b_pre
148    
149    o call "do_the_model_io" at the beginning (=> dump initial state)
150    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
151    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
152      (need info on NUMBER_OF_PTRACERS)
153    o missing PTRACERS headers in some routines
154    o default tamc.h in pkg/autodiff supposed to crash
155      to ensure proper customization
156    
157    checkpoint52a_post
158    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
159      - moved surfaceTendencyTice from pkg/seaice to main code
160      - subroutine FREEZE_SURFACE now limits only surface temperature
161        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
162        => new output.txt for global_ocean.cs32x15 & global_with_exf
163      - keep the old version of FREEZE for backward compatibility;
164        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
165      - corresponding modifs for TAF directives
166    o added surface flux output variables to TIMEAVE_STATVARS
167    o time-averaged output for pkg/ptracers
168    o fix problem with ECCO-related divided adjoint
169      snapshot file was missing some ad-variables,
170      but no warning issued by TAF
171    
172    checkpoint52a_pre
173    o some bug fixes for #undef REAL4_IS_SLOW
174    
175    checkpoint52 = ecco_c52_e35
176    o after testing adjoints of checkpoint51u_post
177    
178    checkpoint51u_post
179    o this is the post-merge tag of the ecco-branch
180      (needs another clean checkout and re-testing)
181    o various natl_box_adjoint configs and results
182      but no input fields
183    o obcs adjoint not yet merged!
184    o adding ECCO global 1x1 and 2x2 degree configs
185    o updated/extended some store directives for seaice
186    o pkg/ecco now containes ecco-specific part of cost function
187    o top level routines the_main_loop, forward_step
188      supersede those in model/src/
189      previous input data.cost now in data.ecco
190      (new namelist ecco_cost_nml)
191    o in ctrl/ cleaned some cross-dependencies and updated CPP options
192    
193    checkpoint51t_post
194    o this is the pre-merge tag of the ecco-branch
195    
196    checkpoint51s_post
197    o cleanup: removed various obsolete #define-s
198    o pkg/grdchk
199      - renamed 'ph-grd 3' to 'grad-res'
200      - merged from ecco-branch
201        (remaining bug fixes for obcs gradient checks)
202      - additional high-precision output for testreport
203        (grep for 'precision_grdchk_result')
204    
205    checkpoint51r_post
206    o cleaned up or removed CPP_OPTIONS.h files
207    o updated results for some of the tests to reflect the new
208      optfiles (-ieee: -O0 instead of -O3)
209    
210    checkpoint51q_post
211    o cd_code:
212      - moved cd_scheme.F -> cd_code_scheme.F
213      - separate read_checkpoint from cd_code_ini_vars.F
214      - separated cd_code part from write_checkpoint
215      - updated AD_SOURCE, generated .flow
216      - added CD_CODE_VARS.h to the_main_loop
217      - Moving cd_code specific store dir.s to pkg/cd_code
218    o ctrl package totally restructured
219      - pack/unpack now optional and decoupled from
220        xx_/adxx_ I/O
221      - ctrl_pack/unpack cleaned
222        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
223      - confined inclusion of AD_CONFIG.h to where necessary.
224    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
225    
226    checkpoint51p_post
227    o create initial cd_code package
228      - WARNING: the initialization of fields within packages
229        is broken because INI_FIELDS (where READ_CHECKPOINT is
230        called) is called *before* PACKAGES_INIT_VARIABLES.
231        This seems to be backwards since
232        1) its important to initially zero the entire field including
233           the "halo" region
234        2) zeroing needs to be done *before* reading pickup info
235           and the pickup call might or might not happen in any
236           particular run
237      - this needs an overhaul for R2
238    o cleanup verification/*/code/GMREDI_OPTIONS.h
239    o cleanup testreport
240    
241    checkpoint51o_post
242    o bringing AD-related verif's up to date with genmake2
243      - carbon/
244      - global_ocean.90x40x15/
245      - hs.94.1x64x5/
246      - (front_relax/ )
247    o (more) consistent directory structure for AD-related verif.'s
248    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
249    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
250    o bug fix in find_alpha.F for MDJWF:
251      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
252        change rho -> rho-rhoConst
253      - replace call find_rho to find_rhonum
254    o initialisation of rFlx extended to full array (required by TAF)
255      and shifted to thermodynamics
256    o removed PTRACERS.h in ptracers routine
257    o added surfacetendencyPtr to S/R parameter list pracers_forcing
258    o Correcting initialisations for fVerU, fVerV.
259    o helping TAF to recognize dependency on kUp for
260      fVerU, fVerV
261    o Replacing delZ by delR in pkg/ctrl/
262    checkpoint51o_pre
263    
264    o undid all of cp51 pending some cleanups and discussion
265    o added the [#include "AD_CONFIG.h"] statement to all files that need
266       it for adjoint/tl #defines
267     o re-worked the build logic in genmake2 to support AD_CONFIG.h
268     o removed tools/genmake since it no longer works
269    
270    checkpoint51n_post
271    o modifications to make FREEZE flux visible to pkg/kpp
272      - moved surfaceTendencyTice from pkg/seaice to main code
273      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
274      - subroutine FREEZE now limits only surface temperature
275        (this means new output.txt for global_ocean.90x40x15,
276         global_ocean.cs32x15, and global_with_exf)
277    o added surface flux output variables to TIMEAVE_STATVARS
278    
279    checkpoint51n_pre
280    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
281    o added [#include "AD_CONFIG.h"] to all files that use the following
282      defines:
283      - ALLOW_ADJOINT_RUN
284      - ALLOW_TANGENTLINEAR_RUN
285      - ALLOW_ECCO_OPTIMIZATION
286    
287    checkpoint51m_post
288    o incorporating changes to get TAMC/TAF working in genmake2
289      - added new TAMC/TAF targets to the Makefile
290      - various cleanups related to package handling
291      - these changes should have no impact on the forward model
292    
293    checkpoint51l_post
294    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
295     - faster algorithm for cal_addtime.F
296     - higher precision arithmetic, where needed
297     - pkg/exf *startdate variables changed from calendar date to
298       model integration time
299    
300    checkpoint51l_pre
301    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
302    o enable to apply restoring on S & T only in a latitude band.
303    o update output (external_forcing_surf modif. change truncation errors)
304       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
305    
306    checkpoint51k_post
307    o change default to: useNHMTerms=.FALSE.
308     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
309       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
310     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
311        exp1, ideal_2D_oce
312     - change data file of oceanic exp (leave the results unchanged for now)
313       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
314    o set gravitySign automatically according to the vertical coordinate used
315      (and change sign: back to "logical" value: +1 when R increases downward)
316    o added an include barrier to the default CPP_OPTIONS.h and
317      removed the #include "PACKAGES_CONFIG.h" from it
318    o fix a bug in mom_fluxform (from chk51j_post)
319    
320    checkpoint51j_post
321    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
322    o adjusted some flow directives (dynamics, thermodynamics)
323    o added cubed-sphere case to test cost function
324    o heckpoint_lev?_directives.h now include
325      pkg-specific directives, whenever those are enabled.
326    o Moving pkg-specific flow directives to corresponding pkg
327      Moving pkg-specific differentiation list to corresponding pkg
328      Moving pkg-specific checkpoint-lev storing to corresponding pkg
329      ---> conventions are
330           - pkg_ad.flow
331           - pkg_ad_diff.list
332           - pkg_ad_check_lev?_dir.h
333    
334    checkpoint51i_post
335    o merge of the branch-genmake2
336      - knowingly breaks the older genmake
337      - automatic generation of all ALLOW_${PKG_NAME} defines
338      - new testreport supersedes older testscript
339    o large number of package inclusion and header cleanups
340    checkpoint51i_pre
341    
342    o new output for adjoin of global ocean vector invariant
343    o fix for checkpoint of thermodynamic seaice and bulk_force
344    o Steph gchem various cleanups
345    
346    checkpoint 51h_pre
347    o fixed some single quotes
348    o modify gchem pkg to be more versatile
349    o modifications to clean up dic pkg
350    o add pkg/cfc
351    
352    checkpoint51g_post
353    o provide links for ARPACK and ADM*TLM
354    o start removing verification/vero/
355    o update AD-related stuff
356      (in particular some IF-statements in model/src/ routines)
357    o adding to verification/global_ocean.90x40x15/ adjoint of
358      vector invariant setup
359    
360    checkpoint51f_post
361    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
362    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
363      of tracer Green's fucntions for ocean inversion project.
364    
365    checkpoint51f_pre
366    o Added on-the-fly spatial interpolation capability
367        "USE_EXF_INTERPOLATION" to pkg/exf.
368      - This is a temporary Cartesian-grid hack until
369        the super-duper ESMF coupler becomes available.
370      - See verification/global_with_exf/README for usage example.
371      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
372        flags and modified pkg/seaice accordingly.
373    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
374        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
375        non-local transport term.
376    
377    checkpoint51e_post
378    o pkg/mom_vecinv:
379      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
380      - add time-ave diagnostic of vorticity advection.
381    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
382    o atmospheric geopotential: - include water vapor effect;
383                                - use p^kappa in p* scaling.
384    o land pkg: read initial state from files.
385    o AIM : add stratospheric drag in the upper level
386    
387    checkpoint51d_post
388    o change function ILNBLNK (=> last non-blank char.) to return zero
389      (instead of the string length) when the string. char is empty
390    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
391    o modif's to restore TAMC compatibility
392      - avoid "_d" constructs in PARAMETER declarations
393      - avoid interrupting lines by comment lines
394    o Use cluster local disks for purely local I/O
395      vs. globally visible disks needed for ctrl stuff
396      (merged from ecco-branch)
397      - new active_file_loc... and mdsio_..._loc routines
398      - affected packages: autodiff, ctrl, grdchk, mdsio
399    
400    checkpoint51c_post
401    o introducing integer flag debugLevel
402      - debLevZero: suppress all output
403      - debLevA: standard
404      - debLevB: equivalent to current debugMode=.TRUE.
405    o introducing pathname variable mdsioLocalDir for mdsio
406      that can be specified at runtime
407      (relevant for cluster I/O to local disk)
408    `
409    >>>checkpoint51b_post
410    adjoint of ptracers
411    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
412    o extended state in checkpoint_lev?, etc.
413    o alternative ctrl/cost with tr1 or ptracer
414    o new comlev1_bibj_ptracers
415    o new ptracers.flow
416    o made ptracers_forcing same as external_forcing_s
417    o added verification for adjoint with ptracers
418      - adm. grdchk fail so far
419      - tlm. grdchk OK
420      - checked tapelev/comlev recomputations: OK
421    <<<checkpoint51b_pre
422    
423    checkpoint51a_post
424    o added code for biogeochemistry package
425      - new pkgs: dic, gchem
426      - new subroutine in ptracers
427    o modify code for biogeo packages
428      - in model/src and pkg/ptracers
429    
430    checkpoint51
431    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
432      - autodiff, ctrl, exf, grdchk, seaice
433      kept separate packages
434      - cost, ecco, obcs
435    o updating verification/internal_wave, verification/lab_sea
436      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
437    
438    checkpoint50i_post
439    o Preparing next differentiable checkpoint and sync
440      of MAIN vs. ecco-branch
441      - 1st step: this one is differentiable
442      - 2nd step: next(! not this) checkpoint will have updated packages
443                  from ecco-branch)
444    
445    checkpoint50h_post
446    o new package "land": provide surface BC for AIM.
447    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
448    o AIM: use true log-P extrapolation for near surface temp (= as in
449        F.Molteni paper) ; update aim.5l_cs output.
450    o New variable in PARM03 for more flexible pickups
451    o somewhat cleaned package initialisation sequence for
452      ctrl/ cost/ ecco/ in packages_... routines
453    
454    checkpoint50g_post
455    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
456      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
457      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
458        made the default because of faster convergence than ADI
459    
460    checkpoint50f_post
461    o exf totally restructured
462      - replaced all exf_set_ routines by one generic exf_set_gen.F
463        and made sure it's still differentiable
464      - split exf_getffields.F into new exf_bulkformulae.F
465      - exf_inscal_/exf_outscal_ suffixes consistent with field names
466      - updated adjoint/makefile and relevant verif. accordingly
467    
468    checkpoint50f_pre
469     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
470          + change Evap over land. (update aim.5l_cs output)
471     o added missing .cvsignores and made uniform across expts
472     o changed configuration of tidal_basin_2d expt
473     o added pkg/debug functions for tracing code in fatal crashes
474     o tidied pkg/monitor to use MONITOR_OPTIONS.h
475     o new fn in pkg/monitor to stop model if solution grows too big
476     o removed lots of single quotes from comments
477    
478    checkpoint50e_post
479    o make KPP work with PTRACERS
480     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
481       nearly a copy of kpp_transport_s
482     - there is no analogue to SurfaceTendencyS, so I have to use
483       gPtr(of the surface layer) instead
484    o add a new platform SunFire+mpi (SunFire 15000) to genmake
485    checkpoint50e_pre
486    
487    checkpoint50d_post
488    o change kpp output from multiple-record state files to single-record state
489      files analogous to write_state.F
490    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
491      analogous to the cg2d-related output.
492    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
493      so that writing to internal file fn (with length 512) fails.
494    checkpoint50d_pre
495    
496    checkpoint50c_post
497    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
498    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
499    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
500    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
501    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
502    
503    checkpoint50c_pre
504    Merging from release1_p13:
505    o bug fix for pkg/seaice dynamic solver
506    o Added SEAICE_initialHEFF to pkg/seaice
507    
508    checkpoint50b_post
509    o store u*,v* in gU,V instead of in guNm1,gvNm1
510    o in order to put the momForcing out of the Adams-Bashforth:
511      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
512      to timestep.F
513    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
514    o re-generate output for highly sensitive test-exp:
515       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
516    
517    checkpoint50b_pre
518    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
519    o corrected CPP option mismatch in exf_Bulk... functions for case
520      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
521    
522    checkpoint50a_post
523    o Bug fix for merging between c50 and KPP.
524      ikey was passed from thermodynamics to kpp_calc via
525      common block rather than being recomputed in kpp_calc,
526      in contradiction with new key itdkey.
527      New key ikppkey created, and tamc.h headers updated.
528    
529    checkpoint50
530    - 2nd step of merge with ecco-branch:
531      merge changes in ecco-branch back into main trunk
532    - bug fix in find_alpha
533    - more storing in gmredi_calc_tensor.F, kpp_routines.F
534    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
535    - merged some sliced AD support routines
536    
537    checkpoint49
538    merged from ecco-branch:
539    o exf:
540      - Enable initialisation of forcing fields to constant
541        (runtime) values.
542      - in exf_getffields.F
543        Reduce i-/j-loop to interior domain, discarding overlaps.
544        That also fixes wrong TAF-key computations for key_1, key_2
545        with bulf formulae.
546      - exf_init.F modify #ifdef for exf_init_evap
547      - exf_getffieldrec.F, ctrl_getrec.F
548        The following INT-usages are not safe:
549          fldsecs  = int(fldsecs/fldperiod)*fldperiod
550          fldcount = int(fldsecs/fldperiod) + 1
551        and were modified.
552    o autodiff: checkpoint_lev...
553      - updated storing for bulk formulae (some arrays were missing)
554      - added state for seaice package
555      - synchronized with main branch
556    o DIVA:
557      Modif.s in
558      - the_main_loop.F
559      - the_model_main.F
560      and added cost_final_restore.F cost_final_store.F
561      o With these changes, it is possible to fully separate
562        the first forward run to compute the cost function (mdthe_main_loop)
563        and adjoint runs over individual DIVA intervals (adthe_main_loop)
564        into separate model executions.
565        This enables better tuning of DIVA to given queue sizes.
566      o Loss of cost function value in consecutive DIVA runs is
567        fixed by storing to 'costfinal' file.
568      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
569        beginning/end of adjoint integration is accounted for.
570      The current changes apply to TAF-1.4.26.
571      TAF has one remaining bug, requiring one manual change
572      (see MITgcm manual).
573    o cal: synchronized between MAIN and ecco-branch
574    
575    checkpoint48i_post
576    o Changes to restore differentiability of code w.r.t. previous tag
577      (mostly adding new routines to make list and replacing
578      pressure by totPhiHyd).
579    o Updated and merged grdchk package
580      - has both ADM and TLM checks
581      - works for single- and multi-proc.
582      - output cleaned
583      - worked successfully for parallel DIVA
584    o genmake:
585      - Adding -platform=SP4
586      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
587    o Modif. for DIVA:
588      ctrl_unpack should not be called in intermediate DIVA interval.
589      (similar thing would apply for active files such as
590      tbar, sbar, psbar, which should not be reinitialised;
591      only relevant for ecco-branch)
592    
593    checkpoint48h_post
594    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
595    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
596    o Added SEAICE_initialHEFF to pkg/seaice
597    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
598    
599    checkpoint48g_post
600    --- EOS:
601    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
602      store total Potential in totPhyHyd for diagnostics & EOS.
603    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
604    --- Pressure/geopotential gradient:
605    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
606    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
607      ( changes results of global_ocean_pressure )
608    o NLFS + z-coord.: add eta*Rho' contribution.
609    o accurate phiHyd when using interface-W at the middle between 2 centers
610     ( changes results of ideal_2D_oce )
611    o includes r* 2nd term in potential gradient.
612    
613    checkpoint48f_post
614    Merging from release1_p12:
615    o Modifications for using pkg/exf with pkg/seaice
616      - improved description of the various forcing configurations
617      - added basic radiation bulk formulae to pkg/exf
618      - units/sign fix for evap computation in exf_getffields.F
619      - updated verification/global_with_exf/results/output.txt
620    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
621      (SBO) core products, including oceanic mass, center-of-mass,
622      angular, and bottom pressure (see pkg/sbo/README.sbo).
623    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
624      to avoid negative values in shallow regions.
625      - updated verification/natl_box/results/output.txt
626      - updated verification/lab_sea/results/output.txt
627    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
628    o Added useSingleCpuIO option (see PARAMS.h).
629    o Updated useSingleCpuIO option in mdsio_writefield.F to
630      work with multi-field files, e.g., for single-file pickup.
631    o pkg/seaice:
632      - bug fix in growth.F: QNET for no shortwave case
633      - added HeffFile for specifying initial sea-ice thickness
634      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
635    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
636      kpp_transport_t.F, forward_step.F, and the_main_loop.F
637    o pkg/seaice:
638      - adjoint-friendly modifications
639      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
640    
641    checkpoint48e_post
642    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
643    o dynamics: change definition of computational domain & adapt mom_fluxform
644      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
645    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
646        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
647        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
648        global_ocean.90x40x15 global_with_exf global_ocean_pressure
649        inverted_barometer solid-body.cs-32x32x1
650      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
651    
652    checkpoint48d_post
653    o in preparation for r*:
654     a) use pre-computed gradient of hydrostatic potential:
655        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
656     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
657        => affects results of glob_oce_pressure (different truncation error)  
658      update output.txt of ideal_2D_oce & global_ocean_pressure
659    
660    checkpoint48d_pre
661    o in preparation for r*:
662      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
663      pass the 2 comp. of the grad. as arguments to momentum S/R.
664      but for the moment, only used if it does not change the results.
665    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
666    
667    checkpoint48c_post
668    Modifications in treatment of initial flux forcing controls
669    to avoid extra storing of flux fields.
670    
671    checkpoint48c_pre
672    o Added tidal_basin_2d experiment (currently 1D!)
673    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
674    
675    checkpoint48b_post
676    o r* coordinate added in #ifdef NONLIN_FRSURF block.
677     (modification to pressure gradient not yet implemented)
678    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
679      (for U & V) that are used for vertical advection of momentum.
680    
681    checkpoint48a_post
682    o In preparation for r*, use temp. array to compute vertical transport
683       in flux-form momentum pkg. => change results of few test-exp.
684      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
685                        lab_sea, natl_box & plume_on_slope
686    
687    checkpoint48
688    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
689    
690    checkpoint47j_post
691    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
692    o moved adexch from forward_step to addummy_in_stepping
693    o added exch in ctrl_map_...
694    o aveFreq.=0. at end of cost_final to avoid overwrite in
695      reverse checkpointing loop
696    o Yet more changes in gmredi:
697      * adgmredi_calc_tensor
698        avoiding all recomputation of gmredi_slope_limit
699      * adgmredi_x/y/rtransport
700        added flag for excessive storing to avoid recomp. of
701        u/v/rtans, dTdx/y/z
702        -> this is not really necessary and very memory-consuming
703      * adgmredi_slope_psi:
704        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
705      * gmredi_slope_limit
706        re-activated full calculation of taperfct for case 'ac02'
707    o updating verification/ adjoints of carbon, global_ocean.90x40x15
708    
709    checkpoint47i_post
710    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
711    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
712      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
713    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
714    o gmredi: fix few bugs.
715    
716    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
717    This will be a good checkpoint to plug into the ecco-branch.
718    o few modif.'s to get latest version adjointed
719      (mainly kick out code in ini_linear_phisurf)
720    o modif's to run adjoint with exactConserv
721    o case GM_BOLUS_ADVEC should be cleaned
722      S/R gmredi_slope_psi should be cleaned
723    o verification/carbon now has exactConserv=.TRUE.
724    
725    checkpoint47g_post
726    o time-average AIM output: becomes independent from statvars time-average
727      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
728    o After TAF bug fix:
729      Tested adjoint of gmredi package.
730      Tests were done with checkpoint47 rather than with latest
731      checkpoint47f_post since the latter is broken for the adjoint
732      verification/carbon/ contains both ADM and TLM gradient checks.
733    Here they are, before they get changed/lost/stolen.
734    Mostly modif.'s to fix numerical sensitivities.
735    Gradient checks OK for
736    - GM_taper_scheme:
737      * clipping
738      * ac02
739      * linear
740      * glw91
741      * dm95
742      * ldd97
743    - GMREDI_OPTIONS:
744      * GM_VISBECK_VARIABLE_K
745      * GM_NON_UNITY_DIAGONAL
746      * GM_EXTRA_DIAGONAL
747      * GM_BOLUS_ADVEC
748    in conjunction with data.gmredi parameters to be checked in
749    in a few minutes under verification/carbon/code/
750    
751    checkpoint47f_post
752    Merging from release1_p10:
753    o modifications for using pkg/exf with pkg/seaice
754      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
755        and SEAICE_EXTERNAL_FLUXES
756      - pkg/exf CPP options EXF_READ_EVAP and
757        EXF_NO_BULK_COMPUTATIONS
758      - usage examples are Experiments 8 and 9 in
759        verification/lab_sea/README
760      - verification/lab_sea default experiment now uses
761        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
762    
763    checkpoint47e_post
764    o created a tag prior to creating a branch
765    
766    checkpoint47d_post
767    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
768      at the bottom boundary had an erroneous half slip boundary condition
769    o added bottom drag and no slip boundary condition capabilities to
770      oceanic pressure coordinates code
771    o added new verification experiment global_ocean_pressure, this experiment is
772      also described in the tutorial section of the manual
773    checkpoint47d_pre
774    
775    checkpoint47c_post
776    o Added a verification experiment for a global cubed-sphere ocean run
777      -  verification/global_ocean.cubed32x32x30
778      -  uses pkg/therm_seaice and pkg/bulk_forcing
779    
780    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
781    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
782      when using P-coordinate; only implemented for atmospheric config.
783    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
784      NOTES: requires option NONLIN_FRSURF to be "#define".
785    o update advect_xz/results/output.txt (left from checkpoint44g_post)
786    
787    checkpoint47b_post
788    Merging from release1_p9:
789    o pkg/seaice
790      - removed GOTO's and added taf directives
791      - double precision constants to reduce the g77 (Linux)
792        to F77 (SGI) differences reported in release1_p8
793    o tools/genmake
794      - added SGI options
795    o verification/testscript
796      - updated to that of checkpoint47a_post
797    o verification/global_ocean.90x40x15/input/eedata
798      - modified for SGI f77 compatibility
799    o verification/lab_sea
800      - added description of sea-ice model
801      - added missing matlab routines
802      - added test of thermodynamics parallelization
803    
804    checkpoint47a_post
805    o new pkg: aim_v23
806     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
807       for now, keep the same surface forcing as before.
808     - Part-Cell implemented into AIM; check that Heat & Water are conserved
809     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
810     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
811    o add diagnostic of surface correction term in monitor output
812    
813    o bulk_force and therm_seaice
814    - Two packages:  bulk_force (Bulk forcing)
815      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
816    - Earlier integration from Stephaine Dutkiewicz
817      and Patrick Heimbach.
818    - Two ifdef statements for compile time,
819       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
820    
821    checkpoint47
822    differentiable version of checkpoint46n_post
823    o bug fix in quasihydrostaticterms
824    o * "clean" adjoint code (in terms of extensive recomputations)
825        can now be obtained for all GMREDI options (i.e. for
826        - GM_VISBECK_VARIABLE_K
827        - GM_NON_UNITY_DIAGONAL
828        - GM_EXTRA_DIAGONAL
829        - GM_BOLUS_ADVEC )
830      * However, wrong gradient check problem remains unsolved.
831      * New CPP options have been introduced for different
832        tapering schemes
833    o external_fields_load now part of differentiation list
834    o pressure needs multiple storing;
835      would be nice to have store_pressure at beginning or
836      end of forward_step, e.g. by having phiHyd global (5-dim.)
837      (NB: pressure is needed for certain cases in find_rho,
838      which is also invoked through convective_adjustment).
839    o recomputations in find_rho for cases
840     'JMD95'/'UNESCO' or 'MDJWF' are OK.
841    o #define ATMOSPHERIC_LOADING should be differentiable
842    o ini_forcing shifted to begining of initialise_varia
843    o Incorporating QNVS line search routines into MITgcm
844      (this is separate code, and therefore not under pkg)
845      lsopt/, optim/
846    o Updated verification/carbon/
847      - #define GM_VISBECK_VARIABLE_K
848      - GM_taper_scheme    = 'ldd97'    
849    
850    checkpoint46n_post
851    Merging from release1_p8:
852    o verification/natl_box:
853      updating new external_fields_load routine
854    o New package: pkg/seaice
855      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
856      The sea-ice code is based on Hibler (1979-1980).
857      Two sea-ice dynamic solvers, ADI and LSR, are included.
858      In addition to computing prognostic sea-ice variables and diagnosing
859      the forcing/external data fields that drive the ocean model,
860      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
861      The implied surface heat flux is then stored in variable
862      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
863      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
864      non-local transport term.  Because this call precedes model
865      thermodynamics, temperature under sea-ice may not be "exactly" at
866      the freezing point by the time theta is dumped or time-averaged.
867      N.B.: fairly large differences in accuracy occur across
868            different platforms/compilers; comparison between
869            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
870            generated output gives:
871       T           S           U           V
872      C D M    c        m  s        m  s        m  s        m  s
873      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
874      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
875      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
876    
877      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
878    o GAD:
879      - generated new common blocks to account for call of
880        same gad routines with differing traceridentities
881        (needed to modify tracerIdentity indices in GAD.h)
882      - generated separate common blocks for case useCubedSphereExchange
883        (Department of Futurology)
884      - parameter lists to gmredi_?transport: added tracerIdentity
885      - added new key indices to tamc.h
886    o external_fields_load:
887      - added this routine to TAF list
888      - needed to make some common blocks global and additional storing
889        along the same lines as exf package (checkpoint_lev?_directives.h)
890    o exf:
891      updated external forcing package
892      - bug fixes carried over from ecco-branch
893        (missing OBCS_OPTIONS.h in two routines)
894      - enable easy to use "no forcing".
895      - added exf I/O for atmospheric loading
896      - added exf I/O for runoff data
897      - transfered scaling between exf <-> MITgcm to exf namelist
898    o Adding new verification experiment global_with_exf.
899      This verification experiment is almost identical to the
900      global_ocean.90x40x15 experiment, except that it uses
901      the exf (and cal) package instead of the
902      external_fields_load routine (cf README file).
903    
904    checkpoint46m_post
905    o modified testscript to return -- when there are no lines of "%MON" output
906    o added new flag "quasiHydrostatic" for QH mode
907      and new routine quasihydrostaticterms()
908    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
909      New routine: mom_u_coriolis_nh()
910    o fixed sign of non-hydrostatic metric terms in u and v equations.
911      Depend on correct sign of gravitySign.
912    o added work.pc* to .cvsignore in aim directories using ifc
913    o introduced flag for controllin non-hydrostatic metric terms
914    o removed gravitySign from PARM04
915    o switched to g77/ifc from pgf77 in aim experiments
916    
917    checkpoint46l_post
918    o made convective adjustment work with pressure coordinates:
919     - changed the direction of k-loop in convective_adjustment.F for the
920       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
921     - adjusted the reference pressure k-index in convective_adjustment.F
922     - adjusted the convection condition in convect.F (in analogy to
923       calc_ivdc.F)
924     - convective_adjustment no longer computes anything on the halos
925     - removed the warnings about negative salinity from find_rho.F and
926       find_alpha.F; instead the new routine look_for_neg_salinity, called
927       at the beginning of find_rho, find_alpha, and find_beta, does a
928       check of the entire slice, if CPP-option
929       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
930    checkpoint46l_pre
931    
932    checkpoint46k_post
933    o fixed the verification/global_ocean.90x40x15 experiment:
934     - new bathymetry (the world according to A., JMC, and M.)
935     - new initial fields and forcing fields (*.bin files)
936     - new POLY3.COEFFS (for the next release one should switch to a full
937       equation of state: JMD95P or MDJWF)
938     - fixed several errors and redundancies in the data file
939     - experiment uses looped cells
940     - added matlab directory with diagnostic scripts for plotting of output
941    
942    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
943     - read AIM physics parameters from a file (data.aimphys)
944     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
945    
946    checkpoint46j_post
947    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
948    o move wVel computation at the end of the time step, in S/R integr_continuity
949    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
950    o update timeave pkg for wVel diagnostic.
951    checkpoint46j_pre
952    
953    checkpoint46i_post
954    o Clean up AIM package (and keep the results unchanged):
955      include CPP_OPTION and use IMPLICT NONE in all routines ;
956      declare all the variables _RL ; use _d 0 for all numerical constants.
957      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
958    
959    checkpoint46h_post
960    o cleaned up the use of rhoNil and rhoConst.
961      - rhoNil should only appear in the LINEAR equation of state, everywhere
962        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
963        and the dynamical equations are all divided by rhoConst
964    o introduced new parameter rhoConstFresh, a reference density of fresh
965      water, to remove the fresh water flux's dependence on rhoNil. The default
966      value is 999.8 kg/m^3
967    o cleanup up external_forcing.F and external_forcing_surf.F
968      - can now be used by both OCEANIC and OCEANICP
969    checkpoint46h_pre
970    
971     Added code to convert surface volume flux (fresh water) into
972     a mass flux when using P coordinates in the ocean (OCEANICP).
973     Note: It assumes you have set rho0=rhoConst=density of fresh water.
974    
975    checkpoint46g_post
976    o Include a new diagnostic variable phiHydLow for the ocean model
977      - in z-coordinates, it is the bottom pressure anomaly
978      - in p-coordinates, it is the sea surface elevation
979      - in both cases, these variable have global drift, reflecting the mass
980        drift in z-coordinates and the volume drift in p-coordinates
981      - included time averaging for phiHydLow, be aware of the drift!
982    o depth-dependent computation of Bo_surf for pressure coordinates
983      in the ocean (buoyancyRelation='OCEANICP')
984      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
985        Theta, Salinity, and Pressure in the parameter list. This routine is
986        presently contained in find_rho.F. This routine does not give the
987        correct density for 'POLY3', which would be a z-dependent reference
988        density.
989    o cleaned up find_rho
990      - removed obsolete 'eqn' from the parameter list.
991    o added two new verification experiments: gop and goz
992      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
993    checkpoint46g_pre
994    
995    checkpoint46f_post
996    o Enable tangent linear (forward mode) gradient checks:
997      - extended active file handling to g_... files
998      - added TANGENT_SIMULATION to theSimulationMode
999      - extended grdchk package accordingly
1000    o added tangent linear setup in verification/carbon/code_ftl
1001    o added adjoint setup in verification/front_relax/code_ad
1002    
1003    checkpoint46e_post
1004    o Added new equation of state -> MDJWF
1005      - EOS of McDougall et al., 2002, JAOT, submitted
1006      - caveat: the equation of state is only valid for a smaller (more
1007        realistic?) range of values than JMD95P/Z and UNESCO
1008      - added masks to the calculation of pressure in store_pressure
1009      - added more check values for density in check_eos (ini_eos.F), some of
1010        the old check values are out of the range of the MDJWF-eos, so don't
1011        expect perfect matches for those
1012    checkpoint46e_pre
1013    
1014    checkpoint46d_post
1015    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1016      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1017      case of pressure coordinates. eosType='JMD95Z' in
1018      combination with buoyancyRelation='OCEANICP' now causes an error.
1019    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1020      in find_alpha/beta.
1021    checkpoint46d_pre
1022    
1023    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1024      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1025    
1026    checkpoint46c_post
1027    o Changes necessary for ocean in p-coordinates
1028     -  Added new buoyancy relation = 'OCEANICP'
1029     -  Added new parameters = gravitySign (this used to be contained inside
1030        the factor dRdZ which I added when we first switched to R coordinates).
1031     X GM/Redi is not compatible (yet)
1032     X bottom drag and no-slip need to be debugged.
1033    checkpoint46c_pre
1034    
1035    checkpoint46b_post
1036    o Added new equation of state -> JMD95Z and JMD95P
1037      - EOS of Jackett and McDougall, 1995, JAOT
1038      - moved all EOS parameters into EOS.h
1039      - new routines ini_eos.F, store_pressure.F
1040    o Added UNESCO EOS, but not recommended because it requires
1041      in-situ temperature (see JMD95)
1042    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1043      unesco.f to be used with POLY3
1044    checkpoint46b_pre
1045    
1046    checkpoint46a_post
1047    o Added (atmospheric) pressure loading
1048      - new field in FFIELDS.h, etc...
1049      - new cpp flag ATMOSPHERIC_LOADING
1050    o Changed hFacC to _hFacC in calc_phi_hyd.F
1051    o Added SHORTWAVE_HEATING to some files for consistency
1052    checkpoint46a_pre
1053    
1054    checkpoint46
1055    further merges from release1_p5
1056    o new ctrl package
1057      - adopted from ECCO environment to enable optimization
1058      - added Eliassen Palm fluxes to controls
1059    o added Eliassen Palm flux controls to gradient check package
1060    o cost package
1061      - Compatible with new ctrl package
1062      - added Eliassen Palm cost hooks
1063      - modif's of existing cost functions
1064    o Adjoint-related bug fixes in kpp:
1065      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1066      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1067    o autodiff package
1068      - flow directives:
1069        + new for S/R do_the_model_io
1070        + enhanced for S/R checkpoint
1071        + new gmredi.flow
1072      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1073        disable adcommon.h/g_common.h by default.
1074      - fixed problem for adjoint of global_max
1075    o modified verification/carbon/
1076    o New setup for adjoint of global_ocean
1077    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1078    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1079    o incorporated hooks for sponge layer code (external_forcing.F)
1080    
1081    checkpoint45d_post
1082    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1083    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1084      (affects plume_on_slope "cg2d" output)
1085    o add new parameter deltaTfreesurf for free-surface time stepping
1086    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1087    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1088    o change phiMin in exp1 (to agree with documentation)
1089    o add new flags:
1090     - T,S forcing inside/outside Adams-Bashforth
1091     - turn off temp,salt advection and/or forcing
1092     - for each tracer, define internal flag for multiDimAdvection & A-B
1093    o monitor: change definition of KE to check conservation of Energy
1094    
1095    checkpoint45c_post
1096    o Removed f90 comments ("!")
1097    o Modified initialisations to enable exf package for MITgcm
1098      (without invoking ECCO_PACKAGE).
1099    o modifications to gradient check package (Martin Losch)
1100      - enable centered differences
1101      - modified format of standard output
1102    
1103    checkpoint45b_post
1104    o cleaned exchange calls in cg2d
1105    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1106    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1107      to configure barotropic setup (Martin Losch)
1108    o moved some initialisations within bi,bj loop in dynamics
1109      (TAF flow dependency)
1110    o in initialise_varia, moved call packages_init_variables
1111      before convective_adjustment_init
1112      (corresponding adjustment of TAF tape initialisation).
1113    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1114    
1115    checkpoint45a_post
1116    o compute Rho over the whole domain (extend iMin,jMin indices)
1117    o specific exchange for X-slice domain (case Ny=1)
1118    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1119    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1120    
1121    checkpoint44h_post = checkpoint45
1122    o Fix to restore differentiability:
1123      place at which packages_init_variables is called in
1124      initialise_varia is crucial for reverse control flow.
1125    o modifications in GMRedi to enable stable adjoint
1126      (corresponding modif's in thermodynamics, dynamics)
1127    o added missing hook for sponge layer code in external_forcing
1128    o modified test cost functions
1129    o storing in gad_advection (plus removal of write(0,*)!
1130    o missing headers TR1.h added in convective_adjustment routines
1131    o errorMessageUnit set non-equal zero in eeboot
1132      (conflict on some platforms, e.g. IBM SP3)
1133    o modified carbon verif.
1134    
1135    checkpoint44h_pre
1136    o vertical grid option: allow to put the Interface at the middle between
1137      2 cell-centers ; replace delZ in pkg/kpp by drF.
1138    o GM Advective form: Tracers are advected using the residual transport (=
1139      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1140    
1141    checkpoint44g_post
1142    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1143      results) ; ifdef missing in thermodynamics.F
1144    
1145    checkpoint44f_pre,checkpoint44f_post
1146    o added PTRACERS package
1147      This allows an arbitrary number of passive tracers to be integrated
1148      forward simultaneously with the dynamicaly model.
1149      + Implemented so far:
1150        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1151        - I/O and checkpointing
1152        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1153      + Not implemented so far:
1154        - KPP
1155        - OBCS
1156      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1157        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1158        line in data.pkg.
1159      + This package is disabled by default since it increases storage.
1160    
1161    
1162    o testscript: added -cleanup option
1163    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1164                 b) enable to filter 2D fields.
1165    
1166    checkpoint44e_pre,post
1167    o re-wrote convective adjustment to use pre-calculated weights
1168      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1169      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1170      Original calls to convect() still in place.
1171    
1172    chkpt44d_pre,post
1173    o added missing EXCLUDE_MONITOR flags
1174    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1175      (incompatible typ in MIN/MAX expressions caused problems
1176      on IBM SP3)
1177    o in genmake added variable MAKEDEPEND
1178      plus resetting for case SunOS
1179    o added timer_stats.c routine for IBM SP3
1180    o removed variables in dynamics
1181    !!! I forgot to create tag chkpt44d_pre !!!
1182    !!! But chkpt44d_pre = chkpt44c_post    !!!
1183    
1184    o real fresh water flux implemented with non-linear free-surface.
1185    
1186    chkpt44c_pre,post
1187    o few fix (mask in shap_s2, EmPmR in external_field_load,
1188      USE_NATURAL_BCS in solve_for_P);
1189    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1190    
1191    checkpoint44b_pre/_post
1192    o merge of relevant stuff from the ecco-branch:
1193      - genmake: removed $S64 overwrite for case SunOS
1194      - pkg/exf: update and corrections for field swapping and obcs
1195      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1196                  harmonized between ECCO and MITgcm
1197      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1198                      updated checkpointing_lev... lists for obcs
1199      - model/src: minor changes in forward_step, plot_field
1200                   added directive for divided adjoint in the_main_loop
1201      - pkg/mdsio: added mdsio_gl_slice
1202    
1203    o check parameters & config (chkpt44a_pre,post)
1204    o OBC and NonLin_FrSurf.
1205    
1206    checkpoint44
1207    o fix bug in mom_vi_del2uv
1208    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1209    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1210    o update AIM experiments (NCEP input files)
1211    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1212    o added some stuff for AD
1213    
1214    checkpoint43
1215    o added two new advection tests
1216    o added global 4x4 degree ocean test
1217    o added test of H&S94 with free surface on cube
1218    o some final mods for gradient check, adjoint,...
1219    
1220    checkpoint42
1221      Fixed AD-related problems:
1222    o Store directives up-to-date with re-arranged Adams-Bashforth
1223      (mainly thermodynamics.F)
1224    o New store directives for multi-dim. advection schemes
1225      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1226      * new common block and key passkey
1227      (mainly gad_advection.F)
1228    o Modified store directives for split of dynamics/thermodynamics
1229      for the case ALLOW_KPP
1230    o Cleaned argument list for timestep_tracer.F
1231    
1232    checkpoint41
1233    o re-formatted/added comments in prologues of key subroutines
1234      to work with protex
1235    
1236    checkpoint40
1237    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1238    o added FLT (floats) package from Arne along with demo. experiment
1239    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1240      implementation of forward-in-time forcing terms
1241    o more mods for non-linear free-surface including new variable
1242    o modified multi-dim method to work on cube
1243    o bug fix in KPP (from DM)
1244    
1245    checkpoint40pre9
1246    o added DST advection schemes
1247    o fix MPI bug on SGI's
1248    o modifications for non-linear free-surface
1249    o fixed conditionals for fixed flow/passive tracer only mode
1250    o added tension/strain form of stress tensor
1251    o changes to commenting of arguments for TAF/TAMC
1252    o added/updated many matlab scripts
1253    o added multi-dimensional advection method for tracers
1254      
1255    checkpoint40pre8
1256    o new package rw/
1257      Added method for dumping intermediate local arrays:
1258      mdsio_writetile - same as mdsio_writefield except works from inside
1259                        bi,bj loop
1260      mdsio_writelocal - same as mdsio_writetile except works for local
1261                         arrays
1262      write_local_r? - higher-level wrapper for mdsio_writelocal
1263      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1264      Example given at end of mom_vecinv.F that dumps some local arrays.
1265    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1266      control flux-form versus vector invariant code.
1267      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1268      or genmake -DISABLE ...
1269    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1270      (additional storing is now needed for case vecinv;
1271      currently nothing implemented to switch this storing off
1272      in case fluxform is used since no CPP flag available).
1273    
1274    checkpoint40pre7
1275    o bug fix in dynamics.F
1276      calc_viscosity called before k=1,Nr loop.
1277    o added some #ifdef's ALLOW_PASSIVE_TRACER
1278    o cleaned initialisations in ctrl_map_ini
1279      related to TAF
1280    
1281    checkpoint40pre6
1282    o split dynamics into thermodynamics & dynamics
1283    o corresponding split of calc_diffusivity into
1284      calc_diffusivity, calc_viscosity
1285      (kpp_calc_diff, kpp_calc_visc).
1286    o Added diffkr, kapgm to control variables
1287    o bug fix in gmredi_slope_limit for ldd97
1288    
1289    checkpoint40pre5
1290    o proper initialization of Adams-Bashforth time stepping
1291      + uses forward step for very first step of model (iter=0)
1292    o re-generated *all* output since almost all output is modified by this
1293      change (sorry but we've been putting this one off for about 2 years)
1294      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1295        *not* regenerated since they are already out of date and I don't
1296        want to create the impression that they are suddenly working.
1297    o removed KAP stuff for DEC's
1298    o modified/added many .cvsignore files in */code and */input
1299    o added new expt "solid-body.cs-32x32x1"
1300      + this uses an alternative form of ini_curvilinear_grid.F which
1301        is not necessarily any better than the current one...
1302    
1303    checkpoint40pre4
1304    o added re-initialisations of utrans,vtrans,rtrans in
1305      calc_common_factors which are crucial for TAF.
1306    o extended iMin,jMin range for calc_common_factors,
1307      calc_diffusivity
1308    o added option ALLOW_PASSIVE_TRACER
1309    o a few minor updates and fixes
1310    
1311    checkpoint40pre3
1312    o created calc_gtr1.F for gad package
1313    o split the_main_loop and re-introduced forward_step
1314    o some recomputations of nIter0 for TAMC
1315    
1316    checkpoint40pre2
1317    o Updated to latest branch of AJA, JMC
1318    o Added gradient check package
1319    o Added routines for passive tracer handling
1320    o Added carbon sequestration sensitivity experiment
1321    
1322    checkpoint39
1323     o Modifications and fixes to support TAMC
1324       (mainly missing or wrong directives)
1325     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1326       in addummy_in_stepping
1327     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1328     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1329     o Included following packages:
1330       cal: calendar
1331       exf: external forcing
1332       ecco: essential routines to control use of cal, exf
1333             (NB: this is not the full ECCO environment)
1334     o disabled some packages by default in genmake
1335    
1336    checkpoint38
1337     o see notes_c37_adj.txt
1338     o corrected wrong layer index in external_forcing_t
1339     o replaced the_main_loop/forward_step by the_main_loop
1340     o removed forceoutput from write_state
1341       (replaced criteria for initial/final state)
1342     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1343    
1344    checkpoint37
1345     o mdsio.F routine split and packaged in pkg/mdsio
1346       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1347        used unless genmake -disable=mdsio)
1348     o allow a more precise surface-geopotential gradient for the atmosphere
1349       taking into account the change in space of Alpha (=1/rho) at the surface.
1350     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1351       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1352     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1353       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1354       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1355     o Time-Average diagnostics defined as a pseudo package "timeave".
1356     o pickup files : old pickup (before c35) did not work with new code (c35
1357       and after) unless activating 2 commented lines in initialise-varia.
1358     o Non-Hydrostatic pickup file Pb fixed.
1359     o bug with Rigid-lid version (since c35) fixed.  
1360    
1361    checkpoint36
1362     o implement Crank-Nickelson barotropic time-stepping
1363     o recover Time-Average diagnostics
1364     o fix Pb in checkpoint (PR#19)
1365     o AIM become a standard package ; clean unused CPP_kees
1366    
1367    checkpoint35
1368     o subtantial rewrite of dynamics.f
1369     o allows staggered time-stepping
1370     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1371     o added bottom drag (linear + quadratic)
1372    
1373    checkpoint34
1374     o Modified exchange routines for correct reverse simulation.
1375     o Added verification output to comply with bug fix in impldiff.F
1376       as of c33 (exp2, natl_box).
1377     o Corrected store directives in dynamics.F
1378     o Corrected array boundaries in impldiff.F
1379     o Corrected array dimensions in gmredi.
1380       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1381     o Added routine GLOBAL_SUM_INT to global_sum.F
1382     o Added mdsio_gl.F for ECCO purposes.
1383    
1384    checkpoint33
1385     o Fixed bug in lower BC in impldiff.F
1386     o Fixed confusion about units of forcing arrays in FFIELDS.h
1387       namely Fu,Fv,Qnet,Qsw,EmPmR:
1388       - Removed verification/natl_box/code/external_fields_scale.F
1389         (did not differ from that in model/src)
1390       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1391         (see FFIELDS.h for description)
1392       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1393         kpp_calc.F and kpp_transport_t.F
1394       - Removed model/src/external_fields_scale.F and calls to it
1395       - verification/natl_box uses flux data with "atmospheric" sign so
1396         a special version of external_fields_load.F is used to
1397         change the data as it's read in. This way, the arrays
1398         have the right units and signs at all times tha a user could
1399         possibly use them.
1400     o Corrected genmake to delete a temporary file during configuration
1401    
1402    checkpoint32
1403     o Scaling of forcing fields moved from external_forcing.F to
1404       external_fields_scale.F, called directly after loading fields.
1405     o Surface relaxation terms added to surface tendency fields in
1406       extra subroutine.
1407     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1408       fields.
1409     o Changes in GMRedi to comply with packaging structure.
1410     o Modifications and bug fixes in KPP package.
1411     o Verification experiment for KPP added (verification/nat_box/)
1412    
1413    checkpoint31
1414     o Packages interface brought in line with defined standard
1415       -> new routines packages_...F
1416       -> changes in initialise_fixed.F, initialise_varia.F
1417       -> enables initialisation interface for ECCO package
1418     o Rescaling of external forcing fields immediately after read
1419       (removed from external_forcing.F)
1420       -> new: surface_fields_scale.F
1421       -> affects ini_foorcing.F, external_fields_load.F
1422     o Computation of surface tendencies before tendency updates.
1423       -> new: external_forcing_surf.F
1424     o Change of variable names useGMRedi, useKPP, useECCO
1425     o Further changes in dynamics.F, impldiff.F for TAMC
1426     o Tested for experiments 0, 2, 4.
1427       - not yet tested for GMRedi.
1428       - not yet tested for KPP.
1429    
1430    checkpoint30
1431     o Updates for OBCs
1432     o New experiment for test OBCs (internal_wave)
1433     o New output.txt in verification/exp4/results/
1434     o Updates for KPP: calculation of viscosity corrected, new variables
1435       kpp_dumpFreq and kpp_taveFreq
1436     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1437       and entry for T90 in genmake
1438    
1439    checkpoint29
1440     o packaged KPP and GM/Redi
1441    
1442    checkpoint28
1443     o Corrected initialization of hFacMin for difference vertical coordinates
1444     o Modified calculation of partial cell thickness to more robust algorithm
1445     o config_summary.F: replaced write_1D_... by write_0D_...
1446       read_write.F: added subroutines write_0D_...
1447     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1448       included some initialisations required for TAMC.
1449     o routine calc_isoslopes: modified sqrt computation to make it
1450       differentiable for zero argument.
1451     o routines dynamics, impldiff:
1452       included store directives and tape key computations required for TAMC.
1453     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1454    
1455    checkpoint27
1456     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1457       formulation works properly with variable resolution.
1458     o restructured the calling tree between the_model_main() and dynamics()
1459     o split initialise() into initialise_fixed() and initialise_varia()
1460     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1461       in new routine ini_psurf()
1462    
1463    checkpoint26
1464     o moved some #ifdef in optional routines to encompass everything
1465       except the argument declarations. This was using up some memory.
1466     o fixed macros like _ADT to work with both versions of Linux cpp
1467     o cleaned up some unused and uninitialized variables
1468       (helps when debugging with strict compile options)
1469     o split up CPP_EEOPTIONS.h into options and macros
1470       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1471     o patch for 2 processor JAM mode
1472    
1473    checkpoint25
1474     o updates for OBCs and NH
1475     o dramatically reduced memory usage
1476     o added "JAM" routines for use on Artic network
1477     o parameterization of convection by implicit vertical diffusion
1478     o added a diagnostic of convective index
1479     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1480       (this is was partly for OBCs and NH but also in anticipation of
1481        an explicit free-surface option)
1482     o initial state input files for U and V
1483    
1484    checkpoint24
1485     o Removed some spurious "REAL"s
1486     o Updated KPP to latest version from JPL
1487     o Added a COS(latitude) in horizontal viscosity
1488    
1489    checkpoint23
1490     o Added del^4 diffusion for salt and temperature
1491     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1492    
1493    checkpoint22
1494     o Made many small changes: implicit none, format(i5), etc...
1495     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1496    
1497    checkpoint21
1498     o Introduced new I/O package that supports direct-access records (mdsio.F)
1499     o Split-up mid-level I/O routines
1500     o Updated input data for experiments 0,1,2,4 and 5
1501     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1502    
1503    checkpoint20
1504     o Tidied up open-boundaries some more
1505     o Added non-hydrostatic code
1506     o Fixed some input data
1507     o Modified MPI start-up to work in "coupled" context.
1508    
1509    checkpoint19
1510     o Tidied up directory structure for verification experiments.
1511     o Added new code for open boundaries.
1512     o Corrected advective terms near boundaries.
1513     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1514     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1515     o Split default parameters out of ini_parms.F into set_defaults.F.
1516    
1517    checkpoint18
1518     o Further changes for optional code generation with
1519       CPP - ugh!
1520    
1521    checkpoint17
1522     o Beginning to incorporating modularity
1523       for supporting atmos. and ocean configs.
1524     o Small changes for TAMC complinace
1525     o New ultra simple test case. Barotropic box
1526       configuration "exp0".
1527    
1528    checkpoint16
1529     o Minor changes to exchange routines to support
1530       accumulation in reverse mode. Adjoint of an
1531       assignment is an addition.
1532     o Changes to support compilation by TAMC (LR(1)
1533       syntax) and by g77 under Linux ( 72 character
1534       limit ).
1535    
1536    checkpoint15
1537     Rewrote exchange routines to allow
1538     o General tile <-> tile connectivity.
1539     o TAMC reverse mode flag ( is this really needed? )
1540     o Variable width overlap and exchange region widths.
1541     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1542       shmput/shmget, VIA, SYSV shmem and every other cool
1543       communication method.
1544    
1545    checkpoint14
1546     Consistent isomorphism chages made. These allow dynamical core
1547     to support both pressure and meters as a vertical coordinate.
1548    
1549    checkpoint13
1550     Release which corrects global_max problem and a couple
1551     of KGM time-averaging diagnostic errors. Also contains
1552     a double-gyre experiment setup as well as the baseline
1553     4 degree global template. The double gyre template is
1554     organised to allow it to be applied automatically to
1555     the baseline configuration.
1556    
1557    branch-point-rdot
1558     A few tidy-ups have been made bt the real point of this
1559     check-point (excuse the pun) is to allow a branch to be
1560     made for the purposes of adding the rDot alterations.
1561     I don't want to commit the rDot to the main-trunk until
1562     we've actually tested it...
1563    
1564    checkpoint12
1565     Tidy up and added generic genmake script (formerly
1566     configure script).
1567     Released to testers.
1568    
1569    checkpoint11
1570     Re-arranged initialise() and introduced ini_vertical_grid()
1571     and ini_masks_etc().
1572    
1573    checkpoint10
1574     Introduced the configure script.
1575     Separated out the diags package.
1576     Added template for writing time-averages of tile/intermediate quantities.
1577     Updated SIZE.h in exp2 and made the data big-endian.
1578    
1579  checkpoint9  checkpoint9
1580   MPI fix. Filename changes (meta/data). salbin*y stuff.   MPI fix. Filename changes (meta/data). salbin*y stuff.
1581   General tidy-up.   General tidy-up.

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