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revision 1.41 by heimbach, Fri Jul 13 18:08:14 2001 UTC revision 1.317 by jmc, Thu Jul 1 21:46:48 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o prepare splitting of thermodynamics: store convect.counter in common block
7    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
8      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
9    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
10    o new parameter "nShapS": allow to treat differently S from T (nShapT)
11    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
12    
13    checkpoint53f_post
14    o modifications that affect AIM experiment results (update output.txt):
15      - no advection of S at top interface Nr (pkg/generic_advdiff)
16      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
17    o AIM pkg:
18      - include stability function into surf.Flux derivative relative to Tsurf
19      - calculate clear-sky radiation & surface temp. change (for diagnostics)
20    
21    checkpoint53e_post
22    o merged cylindrical coord configuration
23    o added rotating_tank experiment
24    checkpoint53e_pre
25    
26    checkpoint53d_post
27    o faulks upgraded: re-generate output.txt that have changed:
28       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
29    o Added Bryan and Lewis, 1979, vertical diffusivity profile
30    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
31    o added Sadourny discretization of Coriolis
32      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
33      - re-enabled use of omega3 (useAbsVorticity)
34    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
35      vector-invariant equations
36      - note: does *NOT* yet use same variable visc. for no-slip BC's.
37    o recoded the lateral boundary conditions for non-hydrostatic w, this time
38      hopefully without new bugs
39      - still to do: biharmonic friction for non-hydrostatic w
40    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
41    o regenerated output for global_ocean_ebm (using -ieee)
42    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
43      of mom_common/
44      - simple re-arrangement of instructions within computing loop
45    checkpoint53d_pre
46    
47    checkpoint53c_post
48    o new version of coupler for AIM+thSIce and Ocean models
49     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
50     - land: change Evaporation of snow
51     - aim with thSIce: fix bug in snow-precip.
52    o changes to calc_gw.F
53     - bug fix for w^2 term near the bottom boundary
54     - (hopefully) improve the lateral slip boundary condtions for use with
55        partial/looped cells
56      - because the bug fix changes two verification experiments anyway (exp5
57        and plume on slope), change the lateral boundary condition from half slip
58        to the value of no_slip_sides
59    o ebm package wasnt quite up to the parallel task. Fixed that.
60    o Adjoint of EBM package + verification
61      * TLM OK
62      * ADM not sufficient accuracy yet (needs further testing)
63    
64    checkpoint53b_post
65    o Commiting new energy balance model to repository
66      * package is pkg/ebm
67      * verif. is verification/global_ocean_ebm
68      * references are in ebm_driver.F
69    C      * X. Wang, P. Stone and J. Marotzke, 1999:
70    C        Global thermohaline circulation. Part I:
71    C        Sensitivity to atmospheric moisture transport.
72    C        J. Climate 12(1), 71-82
73    C      * X. Wang, P. Stone and J. Marotzke, 1999:
74    C        Global thermohaline circulation. Part II:
75    C        Sensitivity with interactive transport.
76    C        J. Climate 12(1), 83-91
77    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
78    C        Destabilization of the thermohaline circulation
79    C        by atmospheric eddy transports.
80    C        J. Climate 7(12), 1870-1882
81    o Will need long integration testing.
82    checkpoint53b_pre
83    
84    o created pkg/mom_common in preparation for variable viscosity code
85    o renamed and split ini_mnc_io
86    o pkg/land: only liquid water can diffuse or run-off
87    o AIM using land: soil wetness availability account for snow
88    o added printMapIncludesZeros to EEPARMS namelist
89    
90    checkpoint53a_post
91    o restore TAMC compatiility for exf_constants.h
92      (no usage of _d in .h)
93    o Additional storing in KPP in an attempt to fix
94      TAMC problem with adjoint of KPP code.
95      (no success...)
96      Identical code works fine with TAF.
97    o Fixed verification/natl_box_adjoint experiments.
98      Initial conditions for Experiments 4 and 5 are now
99      set to "SEAICE_initialHEFF=0", which is more reasonable,
100      and hence gives results closer to that of Experiment 2.
101      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
102    
103    checkpoint53
104    o stable checkpoint with up to date adjoint
105      TLM tests only run for 1st grdchk at the moment. Its unclear if
106      this is a code problem or a problem with resetting code for g_
107      variables that is being autogenerated wrong.
108      Otherwise:
109       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
110       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
111         are both still in chaos following their security messes.
112    
113    checkpoint52n_post
114    o various build (mostly genmake2) changes including:
115      - ability to build/run more easily within Cygwin and MacOS X
116      - more complicated Makefiles with a stronger dependence on Gnu Make
117    o pkg/seaice modifications
118      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
119        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
120        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
121      - changed proxy for geostrophic velocity and updated
122        verification/lab_sea/results/* accordingly
123      - removed ADI dynamic solver from pkg/seaice
124      - replaced all occurrences of 1/CSTICE or 1/CSUICE
125        they caused a segmentation fault under certain circumstances
126      - removed unused field WATR
127    o bug fix in exf-package:
128      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
129         now reflect that.
130    o small fixes in the cal-package:
131      - set reference date to first of January for the 'model'-calendar
132      - failing of cal_CheckDate in cal_FullDate now actually results in a
133        warning
134    o small modifications in exf-package to increase flexibility:
135      - change climtempfreeze from a constant to a runtime parameter that
136        is specified in data.exf_clim (default = -1.9)
137      - introduce runtime parameter windstressmax (default = 2.0) that is
138        specified in data.exf
139    o fix in pkg/thsice:
140      - update Evap (Tsf changes) to be consistent with Latent heat flux
141      - maintain snow precipitation unchanged (even if Tsf >=0).
142     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
143    
144    checkpoint52m_post
145    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
146      this does not change any of the results, because myIter=0 in swfrac always
147      lead to jwtype=2 (the default anyway), but the call makes little sense
148      as a default
149    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
150    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
151      atmospheric model (AIM) to use it ; add a "slab ocean" component.
152    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
153    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
154    o extending useSingleCpuIO option to work with new exch2 I/O format
155      - old-style, missing-tile I/O is still accessible by defining CPP
156        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
157    o monitor package can write to NetCDF files and/or STDOUT
158    o fix re-definition bug in MNC_GRID_INIT_ALL()
159    o doc/api_reference added
160      - a framework for building an API Reference Manual using all
161        the "protex" comments embedded in the code
162      - see pkg/generic_advdiff, pkg/mnc for examples
163    o MNC:
164      - make myThid the last argument for all subroutines
165      - new default for the grid files: NO halos
166      - add useMNC and other run-time flags
167      - separate per-file-group handling of the unlimited dimension
168      - early initialization of MNC w/ flags read at the eeboot stage
169        and lookup tables set in initialize_fixed
170      - write all MNC output to a freshly-created directory
171    o thermodynamics sea-ice (thsice) is now tested with testreport.
172    o test exp. advect_cs: use the standard cs32 grid ; update output.
173    o Added functionality to grdchk:
174      pick global i,j,k position (or nearest wet) where to perform check.
175    
176    checkpoint52l_post
177    o new land formulation:
178      a) use ground enthalpy as prognostic variable to ensure exact
179         energy conservation.
180      b) account for water temperature and for latent heat of freezing
181         in all processes (rain, run-off, ground storage)
182      c) compute surface and ground temperature implicitly.
183    o aim_v23 modification for new land model:
184      a) Treat separately land / ocean / sea-ice surface fluxes
185         to allow implicit computation of land & sea-ice surface temp.
186      b) add snow precipitation.
187    checkpoint52l_pre
188    
189    o fix problem (when 1 tile is empty) in min/max monitor.
190    o fix bug in timeAve (u,vZetatave in common block)
191    o no restoring terms under ice for pkg/seaice
192    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
193    o bug fix for pkg/seaice pickups
194    o change MNC call locations and add coordinate attributes
195    o mask vorticity at the corner ; affects global_ocean.cs output
196    o fix ini_curvilinear_grid ; test CS experiments with mpi
197    o aim.5l_cs: modify sea-ice fraction input file ; update output
198    o exf: Adding simple range check routine for exf fields after read
199    
200    checkpoint52k_post
201    o removed top-level directory "diags"
202      - we migrated these functions to pkg/timeave a long time ago
203    o fixed bug introduced in pkg/monitor
204    o accuracy ctrlprec = 32 insuffient for gradient checks using
205      averaged fields (I/O via cost_averages)
206      -> use ctrl.h in active_file*.F to control I/O precision.
207    o paramter list of CALL ADTHE_MAIN_LOOP
208    o added initial do_the_model_io to ecco
209    o set all ...Freq to zero after cost_final
210      taveFreq, dumpFreq, pChkptFreq
211    o MAIN and ECCO differentiability restored
212    
213    checkpoint52j_post
214    o fix nchklev in tamc.h for global_ocean...
215    o Bringing flow and store directives up-to-date
216    o Really weird thing!
217      call do_the_model_io from the_main_loop with parameters
218      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
219      TAF places a faulty re-call of initialise_varia
220      after cost_final call which should not be there!
221    checkpoint52j_pre
222    
223    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
224      error messages
225    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
226    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
227      debug output
228    o modfied mdsio_writefield.F to handle non-global files under exch2
229    o update AIM Cubed-Sphere exp (aim.5l_cs):
230      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
231    o update AIM Equatorial Channel exp:
232      use standard aim_v23 pkg and change the SST fields to be more realistic.
233    o globalFile now works with exch2
234    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
235      mon_vort3.F to make exch2 friendly with >1 tile per cube face
236    o limit timeave output for hi-res integrations
237    
238    checkpoint52i_post
239    o removed CPP_EEOPTIONS.h from verification/*/code
240    o updated the tiling for global_ocean_pressure
241    checkpoint52i_pre
242    
243    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
244      the old pkg/aim).
245    
246    checkpoint52h_pre
247    o shortened offending lines in exch2_send_rx?.template
248    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
249    o genmake2: add build & execute test for NetCDF code
250    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
251      old grid files, moved CPP_EEMACROS.h to pkg/exch2
252    o added useSingleCPUIO flag to monitor.F and mon_out.F
253    o added temporary hack for sea-ice dynamics on the cube:
254      metric terms are ignored and it is assumed that
255      there is no sea-ice on cube faces 1, 2, 4, and 5.
256    
257    checkpoint52f_post
258    o added exch2 cube routines to pkg/exch2
259    o modified hs94.cs-32x32x5 to use it
260    o added new grid files to hs94.cs-32x32x5
261    checkpoint52f_pre
262    
263    checkpoint52e_post
264    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
265      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
266    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
267      to work with implicit vertical advection and AB ;
268    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
269    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
270     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
271    checkpoint52e_pre
272    
273    o fix bug in impldiff when Nr=1 or Nr=2.
274    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
275    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
276    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
277      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
278    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
279    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
280    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
281    
282    checkpoint52d_post
283    o re-tiled many expts to allow comparison in multi-processor mode
284      - updated output accordingly
285      - changed hs94.128x64x5 to use intial T from file rather than use the
286        random number generator
287    o add infrastructure in model routines for fizhi and gridalt packages
288    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
289    o changes to permit hi-res, cubed-sphere, configuration
290      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
291      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
292      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
293        of surface winds for the cube
294      (A verification experiment, based on global_ocean.cs32x15, but with
295       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
296       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
297       complete with example surface forcing files and matlab scripts to look
298       at the output and compare it with that of global_ocean.cs32x15.)
299    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
300       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
301       to conform to the common rule.
302    o check-in the first version of the coupler + interfaces for multi-components
303       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
304       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
305       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
306       - ocean and atmos. share the same horizontal grid (no interpolation).
307       - exchanges between component and coupler is done in forward_step
308    o new verification experiment, cpl_aim+ocn:
309       coupled ocean - AIM atmosphere on cs32 grid.
310    
311    checkpoint52d_pre
312    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
313    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
314    
315    checkpoint52c_post
316    o Fixing OPTIONS files for use of exf:
317      - ALLOW_ECCO not needed
318      - ECCO_CPPOPTIONS.h should not be included from
319        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
320        as has been the case in the past
321      - All cal/exf related options are currently set in
322        single header file. Should remain so until we
323        agree on a consistent new policy.
324    o Removed all CPP options for cal package.
325      cal has no more CPP options.
326    o modified STOREs in GAD_ADVECTION
327    o corrected key comp. for passkey
328    
329    checkpoint52b_post
330    o new version: "thsice" of thermodynamic sea-ice pkg:
331     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
332     - modify fluxes but do not change theta directly;
333     - light cleaning of bulk_force pkg (still needed with thsice).
334     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
335       + output_thsice.txt to test thsice & bulk_force pkgs.
336    o put back grid & coriolis monitor output.
337    checkpoint52b_pre
338    
339    o call "do_the_model_io" at the beginning (=> dump initial state)
340    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
341    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
342      (need info on NUMBER_OF_PTRACERS)
343    o missing PTRACERS headers in some routines
344    o default tamc.h in pkg/autodiff supposed to crash
345      to ensure proper customization
346    
347    checkpoint52a_post
348    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
349      - moved surfaceTendencyTice from pkg/seaice to main code
350      - subroutine FREEZE_SURFACE now limits only surface temperature
351        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
352        => new output.txt for global_ocean.cs32x15 & global_with_exf
353      - keep the old version of FREEZE for backward compatibility;
354        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
355      - corresponding modifs for TAF directives
356    o added surface flux output variables to TIMEAVE_STATVARS
357    o time-averaged output for pkg/ptracers
358    o fix problem with ECCO-related divided adjoint
359      snapshot file was missing some ad-variables,
360      but no warning issued by TAF
361    
362    checkpoint52a_pre
363    o some bug fixes for #undef REAL4_IS_SLOW
364    
365    checkpoint52 = ecco_c52_e35
366    o after testing adjoints of checkpoint51u_post
367    
368    checkpoint51u_post
369    o this is the post-merge tag of the ecco-branch
370      (needs another clean checkout and re-testing)
371    o various natl_box_adjoint configs and results
372      but no input fields
373    o obcs adjoint not yet merged!
374    o adding ECCO global 1x1 and 2x2 degree configs
375    o updated/extended some store directives for seaice
376    o pkg/ecco now containes ecco-specific part of cost function
377    o top level routines the_main_loop, forward_step
378      supersede those in model/src/
379      previous input data.cost now in data.ecco
380      (new namelist ecco_cost_nml)
381    o in ctrl/ cleaned some cross-dependencies and updated CPP options
382    
383    checkpoint51t_post
384    o this is the pre-merge tag of the ecco-branch
385    
386    checkpoint51s_post
387    o cleanup: removed various obsolete #define-s
388    o pkg/grdchk
389      - renamed 'ph-grd 3' to 'grad-res'
390      - merged from ecco-branch
391        (remaining bug fixes for obcs gradient checks)
392      - additional high-precision output for testreport
393        (grep for 'precision_grdchk_result')
394    
395    checkpoint51r_post
396    o cleaned up or removed CPP_OPTIONS.h files
397    o updated results for some of the tests to reflect the new
398      optfiles (-ieee: -O0 instead of -O3)
399    
400    checkpoint51q_post
401    o cd_code:
402      - moved cd_scheme.F -> cd_code_scheme.F
403      - separate read_checkpoint from cd_code_ini_vars.F
404      - separated cd_code part from write_checkpoint
405      - updated AD_SOURCE, generated .flow
406      - added CD_CODE_VARS.h to the_main_loop
407      - Moving cd_code specific store dir.s to pkg/cd_code
408    o ctrl package totally restructured
409      - pack/unpack now optional and decoupled from
410        xx_/adxx_ I/O
411      - ctrl_pack/unpack cleaned
412        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
413      - confined inclusion of AD_CONFIG.h to where necessary.
414    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
415    
416    checkpoint51p_post
417    o create initial cd_code package
418      - WARNING: the initialization of fields within packages
419        is broken because INI_FIELDS (where READ_CHECKPOINT is
420        called) is called *before* PACKAGES_INIT_VARIABLES.
421        This seems to be backwards since
422        1) its important to initially zero the entire field including
423           the "halo" region
424        2) zeroing needs to be done *before* reading pickup info
425           and the pickup call might or might not happen in any
426           particular run
427      - this needs an overhaul for R2
428    o cleanup verification/*/code/GMREDI_OPTIONS.h
429    o cleanup testreport
430    
431    checkpoint51o_post
432    o bringing AD-related verif's up to date with genmake2
433      - carbon/
434      - global_ocean.90x40x15/
435      - hs.94.1x64x5/
436      - (front_relax/ )
437    o (more) consistent directory structure for AD-related verif.'s
438    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
439    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
440    o bug fix in find_alpha.F for MDJWF:
441      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
442        change rho -> rho-rhoConst
443      - replace call find_rho to find_rhonum
444    o initialisation of rFlx extended to full array (required by TAF)
445      and shifted to thermodynamics
446    o removed PTRACERS.h in ptracers routine
447    o added surfacetendencyPtr to S/R parameter list pracers_forcing
448    o Correcting initialisations for fVerU, fVerV.
449    o helping TAF to recognize dependency on kUp for
450      fVerU, fVerV
451    o Replacing delZ by delR in pkg/ctrl/
452    checkpoint51o_pre
453    
454    o undid all of cp51 pending some cleanups and discussion
455    o added the [#include "AD_CONFIG.h"] statement to all files that need
456       it for adjoint/tl #defines
457     o re-worked the build logic in genmake2 to support AD_CONFIG.h
458     o removed tools/genmake since it no longer works
459    
460    checkpoint51n_post
461    o modifications to make FREEZE flux visible to pkg/kpp
462      - moved surfaceTendencyTice from pkg/seaice to main code
463      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
464      - subroutine FREEZE now limits only surface temperature
465        (this means new output.txt for global_ocean.90x40x15,
466         global_ocean.cs32x15, and global_with_exf)
467    o added surface flux output variables to TIMEAVE_STATVARS
468    
469    checkpoint51n_pre
470    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
471    o added [#include "AD_CONFIG.h"] to all files that use the following
472      defines:
473      - ALLOW_ADJOINT_RUN
474      - ALLOW_TANGENTLINEAR_RUN
475      - ALLOW_ECCO_OPTIMIZATION
476    
477    checkpoint51m_post
478    o incorporating changes to get TAMC/TAF working in genmake2
479      - added new TAMC/TAF targets to the Makefile
480      - various cleanups related to package handling
481      - these changes should have no impact on the forward model
482    
483    checkpoint51l_post
484    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
485     - faster algorithm for cal_addtime.F
486     - higher precision arithmetic, where needed
487     - pkg/exf *startdate variables changed from calendar date to
488       model integration time
489    
490    checkpoint51l_pre
491    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
492    o enable to apply restoring on S & T only in a latitude band.
493    o update output (external_forcing_surf modif. change truncation errors)
494       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
495    
496    checkpoint51k_post
497    o change default to: useNHMTerms=.FALSE.
498     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
499       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
500     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
501        exp1, ideal_2D_oce
502     - change data file of oceanic exp (leave the results unchanged for now)
503       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
504    o set gravitySign automatically according to the vertical coordinate used
505      (and change sign: back to "logical" value: +1 when R increases downward)
506    o added an include barrier to the default CPP_OPTIONS.h and
507      removed the #include "PACKAGES_CONFIG.h" from it
508    o fix a bug in mom_fluxform (from chk51j_post)
509    
510    checkpoint51j_post
511    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
512    o adjusted some flow directives (dynamics, thermodynamics)
513    o added cubed-sphere case to test cost function
514    o heckpoint_lev?_directives.h now include
515      pkg-specific directives, whenever those are enabled.
516    o Moving pkg-specific flow directives to corresponding pkg
517      Moving pkg-specific differentiation list to corresponding pkg
518      Moving pkg-specific checkpoint-lev storing to corresponding pkg
519      ---> conventions are
520           - pkg_ad.flow
521           - pkg_ad_diff.list
522           - pkg_ad_check_lev?_dir.h
523    
524    checkpoint51i_post
525    o merge of the branch-genmake2
526      - knowingly breaks the older genmake
527      - automatic generation of all ALLOW_${PKG_NAME} defines
528      - new testreport supersedes older testscript
529    o large number of package inclusion and header cleanups
530    checkpoint51i_pre
531    
532    o new output for adjoin of global ocean vector invariant
533    o fix for checkpoint of thermodynamic seaice and bulk_force
534    o Steph gchem various cleanups
535    
536    checkpoint 51h_pre
537    o fixed some single quotes
538    o modify gchem pkg to be more versatile
539    o modifications to clean up dic pkg
540    o add pkg/cfc
541    
542    checkpoint51g_post
543    o provide links for ARPACK and ADM*TLM
544    o start removing verification/vero/
545    o update AD-related stuff
546      (in particular some IF-statements in model/src/ routines)
547    o adding to verification/global_ocean.90x40x15/ adjoint of
548      vector invariant setup
549    
550    checkpoint51f_post
551    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
552    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
553      of tracer Green's fucntions for ocean inversion project.
554    
555    checkpoint51f_pre
556    o Added on-the-fly spatial interpolation capability
557        "USE_EXF_INTERPOLATION" to pkg/exf.
558      - This is a temporary Cartesian-grid hack until
559        the super-duper ESMF coupler becomes available.
560      - See verification/global_with_exf/README for usage example.
561      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
562        flags and modified pkg/seaice accordingly.
563    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
564        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
565        non-local transport term.
566    
567    checkpoint51e_post
568    o pkg/mom_vecinv:
569      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
570      - add time-ave diagnostic of vorticity advection.
571    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
572    o atmospheric geopotential: - include water vapor effect;
573                                - use p^kappa in p* scaling.
574    o land pkg: read initial state from files.
575    o AIM : add stratospheric drag in the upper level
576    
577    checkpoint51d_post
578    o change function ILNBLNK (=> last non-blank char.) to return zero
579      (instead of the string length) when the string. char is empty
580    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
581    o modif's to restore TAMC compatibility
582      - avoid "_d" constructs in PARAMETER declarations
583      - avoid interrupting lines by comment lines
584    o Use cluster local disks for purely local I/O
585      vs. globally visible disks needed for ctrl stuff
586      (merged from ecco-branch)
587      - new active_file_loc... and mdsio_..._loc routines
588      - affected packages: autodiff, ctrl, grdchk, mdsio
589    
590    checkpoint51c_post
591    o introducing integer flag debugLevel
592      - debLevZero: suppress all output
593      - debLevA: standard
594      - debLevB: equivalent to current debugMode=.TRUE.
595    o introducing pathname variable mdsioLocalDir for mdsio
596      that can be specified at runtime
597      (relevant for cluster I/O to local disk)
598    `
599    >>>checkpoint51b_post
600    adjoint of ptracers
601    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
602    o extended state in checkpoint_lev?, etc.
603    o alternative ctrl/cost with tr1 or ptracer
604    o new comlev1_bibj_ptracers
605    o new ptracers.flow
606    o made ptracers_forcing same as external_forcing_s
607    o added verification for adjoint with ptracers
608      - adm. grdchk fail so far
609      - tlm. grdchk OK
610      - checked tapelev/comlev recomputations: OK
611    <<<checkpoint51b_pre
612    
613    checkpoint51a_post
614    o added code for biogeochemistry package
615      - new pkgs: dic, gchem
616      - new subroutine in ptracers
617    o modify code for biogeo packages
618      - in model/src and pkg/ptracers
619    
620    checkpoint51
621    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
622      - autodiff, ctrl, exf, grdchk, seaice
623      kept separate packages
624      - cost, ecco, obcs
625    o updating verification/internal_wave, verification/lab_sea
626      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
627    
628    checkpoint50i_post
629    o Preparing next differentiable checkpoint and sync
630      of MAIN vs. ecco-branch
631      - 1st step: this one is differentiable
632      - 2nd step: next(! not this) checkpoint will have updated packages
633                  from ecco-branch)
634    
635    checkpoint50h_post
636    o new package "land": provide surface BC for AIM.
637    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
638    o AIM: use true log-P extrapolation for near surface temp (= as in
639        F.Molteni paper) ; update aim.5l_cs output.
640    o New variable in PARM03 for more flexible pickups
641    o somewhat cleaned package initialisation sequence for
642      ctrl/ cost/ ecco/ in packages_... routines
643    
644    checkpoint50g_post
645    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
646      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
647      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
648        made the default because of faster convergence than ADI
649    
650    checkpoint50f_post
651    o exf totally restructured
652      - replaced all exf_set_ routines by one generic exf_set_gen.F
653        and made sure it's still differentiable
654      - split exf_getffields.F into new exf_bulkformulae.F
655      - exf_inscal_/exf_outscal_ suffixes consistent with field names
656      - updated adjoint/makefile and relevant verif. accordingly
657    
658    checkpoint50f_pre
659     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
660          + change Evap over land. (update aim.5l_cs output)
661     o added missing .cvsignores and made uniform across expts
662     o changed configuration of tidal_basin_2d expt
663     o added pkg/debug functions for tracing code in fatal crashes
664     o tidied pkg/monitor to use MONITOR_OPTIONS.h
665     o new fn in pkg/monitor to stop model if solution grows too big
666     o removed lots of single quotes from comments
667    
668    checkpoint50e_post
669    o make KPP work with PTRACERS
670     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
671       nearly a copy of kpp_transport_s
672     - there is no analogue to SurfaceTendencyS, so I have to use
673       gPtr(of the surface layer) instead
674    o add a new platform SunFire+mpi (SunFire 15000) to genmake
675    checkpoint50e_pre
676    
677    checkpoint50d_post
678    o change kpp output from multiple-record state files to single-record state
679      files analogous to write_state.F
680    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
681      analogous to the cg2d-related output.
682    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
683      so that writing to internal file fn (with length 512) fails.
684    checkpoint50d_pre
685    
686    checkpoint50c_post
687    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
688    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
689    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
690    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
691    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
692    
693    checkpoint50c_pre
694    Merging from release1_p13:
695    o bug fix for pkg/seaice dynamic solver
696    o Added SEAICE_initialHEFF to pkg/seaice
697    
698    checkpoint50b_post
699    o store u*,v* in gU,V instead of in guNm1,gvNm1
700    o in order to put the momForcing out of the Adams-Bashforth:
701      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
702      to timestep.F
703    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
704    o re-generate output for highly sensitive test-exp:
705       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
706    
707    checkpoint50b_pre
708    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
709    o corrected CPP option mismatch in exf_Bulk... functions for case
710      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
711    
712    checkpoint50a_post
713    o Bug fix for merging between c50 and KPP.
714      ikey was passed from thermodynamics to kpp_calc via
715      common block rather than being recomputed in kpp_calc,
716      in contradiction with new key itdkey.
717      New key ikppkey created, and tamc.h headers updated.
718    
719    checkpoint50
720    - 2nd step of merge with ecco-branch:
721      merge changes in ecco-branch back into main trunk
722    - bug fix in find_alpha
723    - more storing in gmredi_calc_tensor.F, kpp_routines.F
724    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
725    - merged some sliced AD support routines
726    
727    checkpoint49
728    merged from ecco-branch:
729    o exf:
730      - Enable initialisation of forcing fields to constant
731        (runtime) values.
732      - in exf_getffields.F
733        Reduce i-/j-loop to interior domain, discarding overlaps.
734        That also fixes wrong TAF-key computations for key_1, key_2
735        with bulf formulae.
736      - exf_init.F modify #ifdef for exf_init_evap
737      - exf_getffieldrec.F, ctrl_getrec.F
738        The following INT-usages are not safe:
739          fldsecs  = int(fldsecs/fldperiod)*fldperiod
740          fldcount = int(fldsecs/fldperiod) + 1
741        and were modified.
742    o autodiff: checkpoint_lev...
743      - updated storing for bulk formulae (some arrays were missing)
744      - added state for seaice package
745      - synchronized with main branch
746    o DIVA:
747      Modif.s in
748      - the_main_loop.F
749      - the_model_main.F
750      and added cost_final_restore.F cost_final_store.F
751      o With these changes, it is possible to fully separate
752        the first forward run to compute the cost function (mdthe_main_loop)
753        and adjoint runs over individual DIVA intervals (adthe_main_loop)
754        into separate model executions.
755        This enables better tuning of DIVA to given queue sizes.
756      o Loss of cost function value in consecutive DIVA runs is
757        fixed by storing to 'costfinal' file.
758      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
759        beginning/end of adjoint integration is accounted for.
760      The current changes apply to TAF-1.4.26.
761      TAF has one remaining bug, requiring one manual change
762      (see MITgcm manual).
763    o cal: synchronized between MAIN and ecco-branch
764    
765    checkpoint48i_post
766    o Changes to restore differentiability of code w.r.t. previous tag
767      (mostly adding new routines to make list and replacing
768      pressure by totPhiHyd).
769    o Updated and merged grdchk package
770      - has both ADM and TLM checks
771      - works for single- and multi-proc.
772      - output cleaned
773      - worked successfully for parallel DIVA
774    o genmake:
775      - Adding -platform=SP4
776      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
777    o Modif. for DIVA:
778      ctrl_unpack should not be called in intermediate DIVA interval.
779      (similar thing would apply for active files such as
780      tbar, sbar, psbar, which should not be reinitialised;
781      only relevant for ecco-branch)
782    
783    checkpoint48h_post
784    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
785    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
786    o Added SEAICE_initialHEFF to pkg/seaice
787    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
788    
789    checkpoint48g_post
790    --- EOS:
791    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
792      store total Potential in totPhyHyd for diagnostics & EOS.
793    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
794    --- Pressure/geopotential gradient:
795    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
796    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
797      ( changes results of global_ocean_pressure )
798    o NLFS + z-coord.: add eta*Rho' contribution.
799    o accurate phiHyd when using interface-W at the middle between 2 centers
800     ( changes results of ideal_2D_oce )
801    o includes r* 2nd term in potential gradient.
802    
803    checkpoint48f_post
804    Merging from release1_p12:
805    o Modifications for using pkg/exf with pkg/seaice
806      - improved description of the various forcing configurations
807      - added basic radiation bulk formulae to pkg/exf
808      - units/sign fix for evap computation in exf_getffields.F
809      - updated verification/global_with_exf/results/output.txt
810    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
811      (SBO) core products, including oceanic mass, center-of-mass,
812      angular, and bottom pressure (see pkg/sbo/README.sbo).
813    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
814      to avoid negative values in shallow regions.
815      - updated verification/natl_box/results/output.txt
816      - updated verification/lab_sea/results/output.txt
817    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
818    o Added useSingleCpuIO option (see PARAMS.h).
819    o Updated useSingleCpuIO option in mdsio_writefield.F to
820      work with multi-field files, e.g., for single-file pickup.
821    o pkg/seaice:
822      - bug fix in growth.F: QNET for no shortwave case
823      - added HeffFile for specifying initial sea-ice thickness
824      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
825    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
826      kpp_transport_t.F, forward_step.F, and the_main_loop.F
827    o pkg/seaice:
828      - adjoint-friendly modifications
829      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
830    
831    checkpoint48e_post
832    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
833    o dynamics: change definition of computational domain & adapt mom_fluxform
834      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
835    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
836        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
837        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
838        global_ocean.90x40x15 global_with_exf global_ocean_pressure
839        inverted_barometer solid-body.cs-32x32x1
840      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
841    
842    checkpoint48d_post
843    o in preparation for r*:
844     a) use pre-computed gradient of hydrostatic potential:
845        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
846     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
847        => affects results of glob_oce_pressure (different truncation error)  
848      update output.txt of ideal_2D_oce & global_ocean_pressure
849    
850    checkpoint48d_pre
851    o in preparation for r*:
852      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
853      pass the 2 comp. of the grad. as arguments to momentum S/R.
854      but for the moment, only used if it does not change the results.
855    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
856    
857    checkpoint48c_post
858    Modifications in treatment of initial flux forcing controls
859    to avoid extra storing of flux fields.
860    
861    checkpoint48c_pre
862    o Added tidal_basin_2d experiment (currently 1D!)
863    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
864    
865    checkpoint48b_post
866    o r* coordinate added in #ifdef NONLIN_FRSURF block.
867     (modification to pressure gradient not yet implemented)
868    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
869      (for U & V) that are used for vertical advection of momentum.
870    
871    checkpoint48a_post
872    o In preparation for r*, use temp. array to compute vertical transport
873       in flux-form momentum pkg. => change results of few test-exp.
874      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
875                        lab_sea, natl_box & plume_on_slope
876    
877    checkpoint48
878    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
879    
880    checkpoint47j_post
881    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
882    o moved adexch from forward_step to addummy_in_stepping
883    o added exch in ctrl_map_...
884    o aveFreq.=0. at end of cost_final to avoid overwrite in
885      reverse checkpointing loop
886    o Yet more changes in gmredi:
887      * adgmredi_calc_tensor
888        avoiding all recomputation of gmredi_slope_limit
889      * adgmredi_x/y/rtransport
890        added flag for excessive storing to avoid recomp. of
891        u/v/rtans, dTdx/y/z
892        -> this is not really necessary and very memory-consuming
893      * adgmredi_slope_psi:
894        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
895      * gmredi_slope_limit
896        re-activated full calculation of taperfct for case 'ac02'
897    o updating verification/ adjoints of carbon, global_ocean.90x40x15
898    
899    checkpoint47i_post
900    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
901    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
902      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
903    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
904    o gmredi: fix few bugs.
905    
906    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
907    This will be a good checkpoint to plug into the ecco-branch.
908    o few modif.'s to get latest version adjointed
909      (mainly kick out code in ini_linear_phisurf)
910    o modif's to run adjoint with exactConserv
911    o case GM_BOLUS_ADVEC should be cleaned
912      S/R gmredi_slope_psi should be cleaned
913    o verification/carbon now has exactConserv=.TRUE.
914    
915    checkpoint47g_post
916    o time-average AIM output: becomes independent from statvars time-average
917      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
918    o After TAF bug fix:
919      Tested adjoint of gmredi package.
920      Tests were done with checkpoint47 rather than with latest
921      checkpoint47f_post since the latter is broken for the adjoint
922      verification/carbon/ contains both ADM and TLM gradient checks.
923    Here they are, before they get changed/lost/stolen.
924    Mostly modif.'s to fix numerical sensitivities.
925    Gradient checks OK for
926    - GM_taper_scheme:
927      * clipping
928      * ac02
929      * linear
930      * glw91
931      * dm95
932      * ldd97
933    - GMREDI_OPTIONS:
934      * GM_VISBECK_VARIABLE_K
935      * GM_NON_UNITY_DIAGONAL
936      * GM_EXTRA_DIAGONAL
937      * GM_BOLUS_ADVEC
938    in conjunction with data.gmredi parameters to be checked in
939    in a few minutes under verification/carbon/code/
940    
941    checkpoint47f_post
942    Merging from release1_p10:
943    o modifications for using pkg/exf with pkg/seaice
944      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
945        and SEAICE_EXTERNAL_FLUXES
946      - pkg/exf CPP options EXF_READ_EVAP and
947        EXF_NO_BULK_COMPUTATIONS
948      - usage examples are Experiments 8 and 9 in
949        verification/lab_sea/README
950      - verification/lab_sea default experiment now uses
951        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
952    
953    checkpoint47e_post
954    o created a tag prior to creating a branch
955    
956    checkpoint47d_post
957    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
958      at the bottom boundary had an erroneous half slip boundary condition
959    o added bottom drag and no slip boundary condition capabilities to
960      oceanic pressure coordinates code
961    o added new verification experiment global_ocean_pressure, this experiment is
962      also described in the tutorial section of the manual
963    checkpoint47d_pre
964    
965    checkpoint47c_post
966    o Added a verification experiment for a global cubed-sphere ocean run
967      -  verification/global_ocean.cubed32x32x30
968      -  uses pkg/therm_seaice and pkg/bulk_forcing
969    
970    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
971    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
972      when using P-coordinate; only implemented for atmospheric config.
973    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
974      NOTES: requires option NONLIN_FRSURF to be "#define".
975    o update advect_xz/results/output.txt (left from checkpoint44g_post)
976    
977    checkpoint47b_post
978    Merging from release1_p9:
979    o pkg/seaice
980      - removed GOTO's and added taf directives
981      - double precision constants to reduce the g77 (Linux)
982        to F77 (SGI) differences reported in release1_p8
983    o tools/genmake
984      - added SGI options
985    o verification/testscript
986      - updated to that of checkpoint47a_post
987    o verification/global_ocean.90x40x15/input/eedata
988      - modified for SGI f77 compatibility
989    o verification/lab_sea
990      - added description of sea-ice model
991      - added missing matlab routines
992      - added test of thermodynamics parallelization
993    
994    checkpoint47a_post
995    o new pkg: aim_v23
996     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
997       for now, keep the same surface forcing as before.
998     - Part-Cell implemented into AIM; check that Heat & Water are conserved
999     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1000     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1001    o add diagnostic of surface correction term in monitor output
1002    
1003    o bulk_force and therm_seaice
1004    - Two packages:  bulk_force (Bulk forcing)
1005      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1006    - Earlier integration from Stephaine Dutkiewicz
1007      and Patrick Heimbach.
1008    - Two ifdef statements for compile time,
1009       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1010    
1011    checkpoint47
1012    differentiable version of checkpoint46n_post
1013    o bug fix in quasihydrostaticterms
1014    o * "clean" adjoint code (in terms of extensive recomputations)
1015        can now be obtained for all GMREDI options (i.e. for
1016        - GM_VISBECK_VARIABLE_K
1017        - GM_NON_UNITY_DIAGONAL
1018        - GM_EXTRA_DIAGONAL
1019        - GM_BOLUS_ADVEC )
1020      * However, wrong gradient check problem remains unsolved.
1021      * New CPP options have been introduced for different
1022        tapering schemes
1023    o external_fields_load now part of differentiation list
1024    o pressure needs multiple storing;
1025      would be nice to have store_pressure at beginning or
1026      end of forward_step, e.g. by having phiHyd global (5-dim.)
1027      (NB: pressure is needed for certain cases in find_rho,
1028      which is also invoked through convective_adjustment).
1029    o recomputations in find_rho for cases
1030     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1031    o #define ATMOSPHERIC_LOADING should be differentiable
1032    o ini_forcing shifted to begining of initialise_varia
1033    o Incorporating QNVS line search routines into MITgcm
1034      (this is separate code, and therefore not under pkg)
1035      lsopt/, optim/
1036    o Updated verification/carbon/
1037      - #define GM_VISBECK_VARIABLE_K
1038      - GM_taper_scheme    = 'ldd97'    
1039    
1040    checkpoint46n_post
1041    Merging from release1_p8:
1042    o verification/natl_box:
1043      updating new external_fields_load routine
1044    o New package: pkg/seaice
1045      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1046      The sea-ice code is based on Hibler (1979-1980).
1047      Two sea-ice dynamic solvers, ADI and LSR, are included.
1048      In addition to computing prognostic sea-ice variables and diagnosing
1049      the forcing/external data fields that drive the ocean model,
1050      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1051      The implied surface heat flux is then stored in variable
1052      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1053      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1054      non-local transport term.  Because this call precedes model
1055      thermodynamics, temperature under sea-ice may not be "exactly" at
1056      the freezing point by the time theta is dumped or time-averaged.
1057      N.B.: fairly large differences in accuracy occur across
1058            different platforms/compilers; comparison between
1059            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1060            generated output gives:
1061       T           S           U           V
1062      C D M    c        m  s        m  s        m  s        m  s
1063      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1064      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1065      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1066    
1067      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1068    o GAD:
1069      - generated new common blocks to account for call of
1070        same gad routines with differing traceridentities
1071        (needed to modify tracerIdentity indices in GAD.h)
1072      - generated separate common blocks for case useCubedSphereExchange
1073        (Department of Futurology)
1074      - parameter lists to gmredi_?transport: added tracerIdentity
1075      - added new key indices to tamc.h
1076    o external_fields_load:
1077      - added this routine to TAF list
1078      - needed to make some common blocks global and additional storing
1079        along the same lines as exf package (checkpoint_lev?_directives.h)
1080    o exf:
1081      updated external forcing package
1082      - bug fixes carried over from ecco-branch
1083        (missing OBCS_OPTIONS.h in two routines)
1084      - enable easy to use "no forcing".
1085      - added exf I/O for atmospheric loading
1086      - added exf I/O for runoff data
1087      - transfered scaling between exf <-> MITgcm to exf namelist
1088    o Adding new verification experiment global_with_exf.
1089      This verification experiment is almost identical to the
1090      global_ocean.90x40x15 experiment, except that it uses
1091      the exf (and cal) package instead of the
1092      external_fields_load routine (cf README file).
1093    
1094    checkpoint46m_post
1095    o modified testscript to return -- when there are no lines of "%MON" output
1096    o added new flag "quasiHydrostatic" for QH mode
1097      and new routine quasihydrostaticterms()
1098    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1099      New routine: mom_u_coriolis_nh()
1100    o fixed sign of non-hydrostatic metric terms in u and v equations.
1101      Depend on correct sign of gravitySign.
1102    o added work.pc* to .cvsignore in aim directories using ifc
1103    o introduced flag for controllin non-hydrostatic metric terms
1104    o removed gravitySign from PARM04
1105    o switched to g77/ifc from pgf77 in aim experiments
1106    
1107    checkpoint46l_post
1108    o made convective adjustment work with pressure coordinates:
1109     - changed the direction of k-loop in convective_adjustment.F for the
1110       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1111     - adjusted the reference pressure k-index in convective_adjustment.F
1112     - adjusted the convection condition in convect.F (in analogy to
1113       calc_ivdc.F)
1114     - convective_adjustment no longer computes anything on the halos
1115     - removed the warnings about negative salinity from find_rho.F and
1116       find_alpha.F; instead the new routine look_for_neg_salinity, called
1117       at the beginning of find_rho, find_alpha, and find_beta, does a
1118       check of the entire slice, if CPP-option
1119       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1120    checkpoint46l_pre
1121    
1122    checkpoint46k_post
1123    o fixed the verification/global_ocean.90x40x15 experiment:
1124     - new bathymetry (the world according to A., JMC, and M.)
1125     - new initial fields and forcing fields (*.bin files)
1126     - new POLY3.COEFFS (for the next release one should switch to a full
1127       equation of state: JMD95P or MDJWF)
1128     - fixed several errors and redundancies in the data file
1129     - experiment uses looped cells
1130     - added matlab directory with diagnostic scripts for plotting of output
1131    
1132    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1133     - read AIM physics parameters from a file (data.aimphys)
1134     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1135    
1136    checkpoint46j_post
1137    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1138    o move wVel computation at the end of the time step, in S/R integr_continuity
1139    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1140    o update timeave pkg for wVel diagnostic.
1141    checkpoint46j_pre
1142    
1143    checkpoint46i_post
1144    o Clean up AIM package (and keep the results unchanged):
1145      include CPP_OPTION and use IMPLICT NONE in all routines ;
1146      declare all the variables _RL ; use _d 0 for all numerical constants.
1147      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1148    
1149    checkpoint46h_post
1150    o cleaned up the use of rhoNil and rhoConst.
1151      - rhoNil should only appear in the LINEAR equation of state, everywhere
1152        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1153        and the dynamical equations are all divided by rhoConst
1154    o introduced new parameter rhoConstFresh, a reference density of fresh
1155      water, to remove the fresh water flux's dependence on rhoNil. The default
1156      value is 999.8 kg/m^3
1157    o cleanup up external_forcing.F and external_forcing_surf.F
1158      - can now be used by both OCEANIC and OCEANICP
1159    checkpoint46h_pre
1160    
1161     Added code to convert surface volume flux (fresh water) into
1162     a mass flux when using P coordinates in the ocean (OCEANICP).
1163     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1164    
1165    checkpoint46g_post
1166    o Include a new diagnostic variable phiHydLow for the ocean model
1167      - in z-coordinates, it is the bottom pressure anomaly
1168      - in p-coordinates, it is the sea surface elevation
1169      - in both cases, these variable have global drift, reflecting the mass
1170        drift in z-coordinates and the volume drift in p-coordinates
1171      - included time averaging for phiHydLow, be aware of the drift!
1172    o depth-dependent computation of Bo_surf for pressure coordinates
1173      in the ocean (buoyancyRelation='OCEANICP')
1174      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1175        Theta, Salinity, and Pressure in the parameter list. This routine is
1176        presently contained in find_rho.F. This routine does not give the
1177        correct density for 'POLY3', which would be a z-dependent reference
1178        density.
1179    o cleaned up find_rho
1180      - removed obsolete 'eqn' from the parameter list.
1181    o added two new verification experiments: gop and goz
1182      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1183    checkpoint46g_pre
1184    
1185    checkpoint46f_post
1186    o Enable tangent linear (forward mode) gradient checks:
1187      - extended active file handling to g_... files
1188      - added TANGENT_SIMULATION to theSimulationMode
1189      - extended grdchk package accordingly
1190    o added tangent linear setup in verification/carbon/code_ftl
1191    o added adjoint setup in verification/front_relax/code_ad
1192    
1193    checkpoint46e_post
1194    o Added new equation of state -> MDJWF
1195      - EOS of McDougall et al., 2002, JAOT, submitted
1196      - caveat: the equation of state is only valid for a smaller (more
1197        realistic?) range of values than JMD95P/Z and UNESCO
1198      - added masks to the calculation of pressure in store_pressure
1199      - added more check values for density in check_eos (ini_eos.F), some of
1200        the old check values are out of the range of the MDJWF-eos, so don't
1201        expect perfect matches for those
1202    checkpoint46e_pre
1203    
1204    checkpoint46d_post
1205    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1206      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1207      case of pressure coordinates. eosType='JMD95Z' in
1208      combination with buoyancyRelation='OCEANICP' now causes an error.
1209    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1210      in find_alpha/beta.
1211    checkpoint46d_pre
1212    
1213    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1214      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1215    
1216    checkpoint46c_post
1217    o Changes necessary for ocean in p-coordinates
1218     -  Added new buoyancy relation = 'OCEANICP'
1219     -  Added new parameters = gravitySign (this used to be contained inside
1220        the factor dRdZ which I added when we first switched to R coordinates).
1221     X GM/Redi is not compatible (yet)
1222     X bottom drag and no-slip need to be debugged.
1223    checkpoint46c_pre
1224    
1225    checkpoint46b_post
1226    o Added new equation of state -> JMD95Z and JMD95P
1227      - EOS of Jackett and McDougall, 1995, JAOT
1228      - moved all EOS parameters into EOS.h
1229      - new routines ini_eos.F, store_pressure.F
1230    o Added UNESCO EOS, but not recommended because it requires
1231      in-situ temperature (see JMD95)
1232    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1233      unesco.f to be used with POLY3
1234    checkpoint46b_pre
1235    
1236    checkpoint46a_post
1237    o Added (atmospheric) pressure loading
1238      - new field in FFIELDS.h, etc...
1239      - new cpp flag ATMOSPHERIC_LOADING
1240    o Changed hFacC to _hFacC in calc_phi_hyd.F
1241    o Added SHORTWAVE_HEATING to some files for consistency
1242    checkpoint46a_pre
1243    
1244    checkpoint46
1245    further merges from release1_p5
1246    o new ctrl package
1247      - adopted from ECCO environment to enable optimization
1248      - added Eliassen Palm fluxes to controls
1249    o added Eliassen Palm flux controls to gradient check package
1250    o cost package
1251      - Compatible with new ctrl package
1252      - added Eliassen Palm cost hooks
1253      - modif's of existing cost functions
1254    o Adjoint-related bug fixes in kpp:
1255      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1256      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1257    o autodiff package
1258      - flow directives:
1259        + new for S/R do_the_model_io
1260        + enhanced for S/R checkpoint
1261        + new gmredi.flow
1262      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1263        disable adcommon.h/g_common.h by default.
1264      - fixed problem for adjoint of global_max
1265    o modified verification/carbon/
1266    o New setup for adjoint of global_ocean
1267    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1268    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1269    o incorporated hooks for sponge layer code (external_forcing.F)
1270    
1271    checkpoint45d_post
1272    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1273    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1274      (affects plume_on_slope "cg2d" output)
1275    o add new parameter deltaTfreesurf for free-surface time stepping
1276    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1277    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1278    o change phiMin in exp1 (to agree with documentation)
1279    o add new flags:
1280     - T,S forcing inside/outside Adams-Bashforth
1281     - turn off temp,salt advection and/or forcing
1282     - for each tracer, define internal flag for multiDimAdvection & A-B
1283    o monitor: change definition of KE to check conservation of Energy
1284    
1285    checkpoint45c_post
1286    o Removed f90 comments ("!")
1287    o Modified initialisations to enable exf package for MITgcm
1288      (without invoking ECCO_PACKAGE).
1289    o modifications to gradient check package (Martin Losch)
1290      - enable centered differences
1291      - modified format of standard output
1292    
1293    checkpoint45b_post
1294    o cleaned exchange calls in cg2d
1295    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1296    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1297      to configure barotropic setup (Martin Losch)
1298    o moved some initialisations within bi,bj loop in dynamics
1299      (TAF flow dependency)
1300    o in initialise_varia, moved call packages_init_variables
1301      before convective_adjustment_init
1302      (corresponding adjustment of TAF tape initialisation).
1303    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1304    
1305    checkpoint45a_post
1306    o compute Rho over the whole domain (extend iMin,jMin indices)
1307    o specific exchange for X-slice domain (case Ny=1)
1308    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1309    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1310    
1311    checkpoint44h_post = checkpoint45
1312    o Fix to restore differentiability:
1313      place at which packages_init_variables is called in
1314      initialise_varia is crucial for reverse control flow.
1315    o modifications in GMRedi to enable stable adjoint
1316      (corresponding modif's in thermodynamics, dynamics)
1317    o added missing hook for sponge layer code in external_forcing
1318    o modified test cost functions
1319    o storing in gad_advection (plus removal of write(0,*)!
1320    o missing headers TR1.h added in convective_adjustment routines
1321    o errorMessageUnit set non-equal zero in eeboot
1322      (conflict on some platforms, e.g. IBM SP3)
1323    o modified carbon verif.
1324    
1325    checkpoint44h_pre
1326    o vertical grid option: allow to put the Interface at the middle between
1327      2 cell-centers ; replace delZ in pkg/kpp by drF.
1328    o GM Advective form: Tracers are advected using the residual transport (=
1329      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1330    
1331    checkpoint44g_post
1332    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1333      results) ; ifdef missing in thermodynamics.F
1334    
1335    checkpoint44f_pre,checkpoint44f_post
1336    o added PTRACERS package
1337      This allows an arbitrary number of passive tracers to be integrated
1338      forward simultaneously with the dynamicaly model.
1339      + Implemented so far:
1340        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1341        - I/O and checkpointing
1342        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1343      + Not implemented so far:
1344        - KPP
1345        - OBCS
1346      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1347        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1348        line in data.pkg.
1349      + This package is disabled by default since it increases storage.
1350    
1351    
1352    o testscript: added -cleanup option
1353    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1354                 b) enable to filter 2D fields.
1355    
1356    checkpoint44e_pre,post
1357    o re-wrote convective adjustment to use pre-calculated weights
1358      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1359      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1360      Original calls to convect() still in place.
1361    
1362    chkpt44d_pre,post
1363    o added missing EXCLUDE_MONITOR flags
1364    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1365      (incompatible typ in MIN/MAX expressions caused problems
1366      on IBM SP3)
1367    o in genmake added variable MAKEDEPEND
1368      plus resetting for case SunOS
1369    o added timer_stats.c routine for IBM SP3
1370    o removed variables in dynamics
1371    !!! I forgot to create tag chkpt44d_pre !!!
1372    !!! But chkpt44d_pre = chkpt44c_post    !!!
1373    
1374    o real fresh water flux implemented with non-linear free-surface.
1375    
1376    chkpt44c_pre,post
1377    o few fix (mask in shap_s2, EmPmR in external_field_load,
1378      USE_NATURAL_BCS in solve_for_P);
1379    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1380    
1381    checkpoint44b_pre/_post
1382    o merge of relevant stuff from the ecco-branch:
1383      - genmake: removed $S64 overwrite for case SunOS
1384      - pkg/exf: update and corrections for field swapping and obcs
1385      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1386                  harmonized between ECCO and MITgcm
1387      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1388                      updated checkpointing_lev... lists for obcs
1389      - model/src: minor changes in forward_step, plot_field
1390                   added directive for divided adjoint in the_main_loop
1391      - pkg/mdsio: added mdsio_gl_slice
1392    
1393    o check parameters & config (chkpt44a_pre,post)
1394    o OBC and NonLin_FrSurf.
1395    
1396    checkpoint44
1397    o fix bug in mom_vi_del2uv
1398    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1399    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1400    o update AIM experiments (NCEP input files)
1401    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1402    o added some stuff for AD
1403    
1404    checkpoint43
1405    o added two new advection tests
1406    o added global 4x4 degree ocean test
1407    o added test of H&S94 with free surface on cube
1408    o some final mods for gradient check, adjoint,...
1409    
1410    checkpoint42
1411      Fixed AD-related problems:
1412    o Store directives up-to-date with re-arranged Adams-Bashforth
1413      (mainly thermodynamics.F)
1414    o New store directives for multi-dim. advection schemes
1415      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1416      * new common block and key passkey
1417      (mainly gad_advection.F)
1418    o Modified store directives for split of dynamics/thermodynamics
1419      for the case ALLOW_KPP
1420    o Cleaned argument list for timestep_tracer.F
1421    
1422    checkpoint41
1423    o re-formatted/added comments in prologues of key subroutines
1424      to work with protex
1425    
1426    checkpoint40
1427    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1428    o added FLT (floats) package from Arne along with demo. experiment
1429    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1430      implementation of forward-in-time forcing terms
1431    o more mods for non-linear free-surface including new variable
1432    o modified multi-dim method to work on cube
1433    o bug fix in KPP (from DM)
1434    
1435    checkpoint40pre9
1436    o added DST advection schemes
1437    o fix MPI bug on SGI's
1438    o modifications for non-linear free-surface
1439    o fixed conditionals for fixed flow/passive tracer only mode
1440    o added tension/strain form of stress tensor
1441    o changes to commenting of arguments for TAF/TAMC
1442    o added/updated many matlab scripts
1443    o added multi-dimensional advection method for tracers
1444      
1445    checkpoint40pre8
1446    o new package rw/
1447      Added method for dumping intermediate local arrays:
1448      mdsio_writetile - same as mdsio_writefield except works from inside
1449                        bi,bj loop
1450      mdsio_writelocal - same as mdsio_writetile except works for local
1451                         arrays
1452      write_local_r? - higher-level wrapper for mdsio_writelocal
1453      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1454      Example given at end of mom_vecinv.F that dumps some local arrays.
1455    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1456      control flux-form versus vector invariant code.
1457      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1458      or genmake -DISABLE ...
1459    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1460      (additional storing is now needed for case vecinv;
1461      currently nothing implemented to switch this storing off
1462      in case fluxform is used since no CPP flag available).
1463    
1464    checkpoint40pre7
1465    o bug fix in dynamics.F
1466      calc_viscosity called before k=1,Nr loop.
1467    o added some #ifdef's ALLOW_PASSIVE_TRACER
1468    o cleaned initialisations in ctrl_map_ini
1469      related to TAF
1470    
1471    checkpoint40pre6
1472    o split dynamics into thermodynamics & dynamics
1473    o corresponding split of calc_diffusivity into
1474      calc_diffusivity, calc_viscosity
1475      (kpp_calc_diff, kpp_calc_visc).
1476    o Added diffkr, kapgm to control variables
1477    o bug fix in gmredi_slope_limit for ldd97
1478    
1479    checkpoint40pre5
1480    o proper initialization of Adams-Bashforth time stepping
1481      + uses forward step for very first step of model (iter=0)
1482    o re-generated *all* output since almost all output is modified by this
1483      change (sorry but we've been putting this one off for about 2 years)
1484      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1485        *not* regenerated since they are already out of date and I don't
1486        want to create the impression that they are suddenly working.
1487    o removed KAP stuff for DEC's
1488    o modified/added many .cvsignore files in */code and */input
1489    o added new expt "solid-body.cs-32x32x1"
1490      + this uses an alternative form of ini_curvilinear_grid.F which
1491        is not necessarily any better than the current one...
1492    
1493    checkpoint40pre4
1494    o added re-initialisations of utrans,vtrans,rtrans in
1495      calc_common_factors which are crucial for TAF.
1496    o extended iMin,jMin range for calc_common_factors,
1497      calc_diffusivity
1498    o added option ALLOW_PASSIVE_TRACER
1499    o a few minor updates and fixes
1500    
1501    checkpoint40pre3
1502    o created calc_gtr1.F for gad package
1503    o split the_main_loop and re-introduced forward_step
1504    o some recomputations of nIter0 for TAMC
1505    
1506  checkpoint40pre2  checkpoint40pre2
1507  o Updated to latest branch of AJA, JMC  o Updated to latest branch of AJA, JMC
1508  o Added gradient check package  o Added gradient check package

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