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revision 1.1 by cnh, Tue May 26 14:38:05 1998 UTC revision 1.235 by jmc, Wed Jan 7 22:26:05 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    checkpoint52e_post
7    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
8      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
9    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
10      to work with implicit vertical advection and AB ;
11    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
12    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
13     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
14    checkpoint52e_pre
15    
16    o fix bug in impldiff when Nr=1 or Nr=2.
17    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
18    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
19    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
20      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
21    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
22    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
23    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
24    
25    checkpoint52d_post
26    o re-tiled many expts to allow comparison in multi-processor mode
27      - updated output accordingly
28      - changed hs94.128x64x5 to use intial T from file rather than use the
29        random number generator
30    o add infrastructure in model routines for fizhi and gridalt packages
31    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
32    o changes to permit hi-res, cubed-sphere, configuration
33      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
34      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
35      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
36        of surface winds for the cube
37      (A verification experiment, based on global_ocean.cs32x15, but with
38       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
39       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
40       complete with example surface forcing files and matlab scripts to look
41       at the output and compare it with that of global_ocean.cs32x15.)
42    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
43       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
44       to conform to the common rule.
45    o check-in the first version of the coupler + interfaces for multi-components
46       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
47       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
48       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
49       - ocean and atmos. share the same horizontal grid (no interpolation).
50       - exchanges between component and coupler is done in forward_step
51    o new verification experiment, cpl_aim+ocn:
52       coupled ocean - AIM atmosphere on cs32 grid.
53    
54    checkpoint52d_pre
55    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
56    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
57    
58    checkpoint52c_post
59    o Fixing OPTIONS files for use of exf:
60      - ALLOW_ECCO not needed
61      - ECCO_CPPOPTIONS.h should not be included from
62        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
63        as has been the case in the past
64      - All cal/exf related options are currently set in
65        single header file. Should remain so until we
66        agree on a consistent new policy.
67    o Removed all CPP options for cal package.
68      cal has no more CPP options.
69    o modified STOREs in GAD_ADVECTION
70    o corrected key comp. for passkey
71    
72    checkpoint52b_post
73    o new version: "thsice" of thermodynamic sea-ice pkg:
74     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
75     - modify fluxes but do not change theta directly;
76     - light cleaning of bulk_force pkg (still needed with thsice).
77     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
78       + output_thsice.txt to test thsice & bulk_force pkgs.
79    o put back grid & coriolis monitor output.
80    checkpoint52b_pre
81    
82    o call "do_the_model_io" at the beginning (=> dump initial state)
83    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
84    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
85      (need info on NUMBER_OF_PTRACERS)
86    o missing PTRACERS headers in some routines
87    o default tamc.h in pkg/autodiff supposed to crash
88      to ensure proper customization
89    
90    checkpoint52a_post
91    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
92      - moved surfaceTendencyTice from pkg/seaice to main code
93      - subroutine FREEZE_SURFACE now limits only surface temperature
94        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
95        => new output.txt for global_ocean.cs32x15 & global_with_exf
96      - keep the old version of FREEZE for backward compatibility;
97        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
98      - corresponding modifs for TAF directives
99    o added surface flux output variables to TIMEAVE_STATVARS
100    o time-averaged output for pkg/ptracers
101    o fix problem with ECCO-related divided adjoint
102      snapshot file was missing some ad-variables,
103      but no warning issued by TAF
104    
105    checkpoint52a_pre
106    o some bug fixes for #undef REAL4_IS_SLOW
107    
108    checkpoint52 = ecco_c52_e35
109    o after testing adjoints of checkpoint51u_post
110    
111    checkpoint51u_post
112    o this is the post-merge tag of the ecco-branch
113      (needs another clean checkout and re-testing)
114    o various natl_box_adjoint configs and results
115      but no input fields
116    o obcs adjoint not yet merged!
117    o adding ECCO global 1x1 and 2x2 degree configs
118    o updated/extended some store directives for seaice
119    o pkg/ecco now containes ecco-specific part of cost function
120    o top level routines the_main_loop, forward_step
121      supersede those in model/src/
122      previous input data.cost now in data.ecco
123      (new namelist ecco_cost_nml)
124    o in ctrl/ cleaned some cross-dependencies and updated CPP options
125    
126    checkpoint51t_post
127    o this is the pre-merge tag of the ecco-branch
128    
129    checkpoint51s_post
130    o cleanup: removed various obsolete #define-s
131    o pkg/grdchk
132      - renamed 'ph-grd 3' to 'grad-res'
133      - merged from ecco-branch
134        (remaining bug fixes for obcs gradient checks)
135      - additional high-precision output for testreport
136        (grep for 'precision_grdchk_result')
137    
138    checkpoint51r_post
139    o cleaned up or removed CPP_OPTIONS.h files
140    o updated results for some of the tests to reflect the new
141      optfiles (-ieee: -O0 instead of -O3)
142    
143    checkpoint51q_post
144    o cd_code:
145      - moved cd_scheme.F -> cd_code_scheme.F
146      - separate read_checkpoint from cd_code_ini_vars.F
147      - separated cd_code part from write_checkpoint
148      - updated AD_SOURCE, generated .flow
149      - added CD_CODE_VARS.h to the_main_loop
150      - Moving cd_code specific store dir.s to pkg/cd_code
151    o ctrl package totally restructured
152      - pack/unpack now optional and decoupled from
153        xx_/adxx_ I/O
154      - ctrl_pack/unpack cleaned
155        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
156      - confined inclusion of AD_CONFIG.h to where necessary.
157    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
158    
159    checkpoint51p_post
160    o create initial cd_code package
161      - WARNING: the initialization of fields within packages
162        is broken because INI_FIELDS (where READ_CHECKPOINT is
163        called) is called *before* PACKAGES_INIT_VARIABLES.
164        This seems to be backwards since
165        1) its important to initially zero the entire field including
166           the "halo" region
167        2) zeroing needs to be done *before* reading pickup info
168           and the pickup call might or might not happen in any
169           particular run
170      - this needs an overhaul for R2
171    o cleanup verification/*/code/GMREDI_OPTIONS.h
172    o cleanup testreport
173    
174    checkpoint51o_post
175    o bringing AD-related verif's up to date with genmake2
176      - carbon/
177      - global_ocean.90x40x15/
178      - hs.94.1x64x5/
179      - (front_relax/ )
180    o (more) consistent directory structure for AD-related verif.'s
181    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
182    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
183    o bug fix in find_alpha.F for MDJWF:
184      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
185        change rho -> rho-rhoConst
186      - replace call find_rho to find_rhonum
187    o initialisation of rFlx extended to full array (required by TAF)
188      and shifted to thermodynamics
189    o removed PTRACERS.h in ptracers routine
190    o added surfacetendencyPtr to S/R parameter list pracers_forcing
191    o Correcting initialisations for fVerU, fVerV.
192    o helping TAF to recognize dependency on kUp for
193      fVerU, fVerV
194    o Replacing delZ by delR in pkg/ctrl/
195    checkpoint51o_pre
196    
197    o undid all of cp51 pending some cleanups and discussion
198    o added the [#include "AD_CONFIG.h"] statement to all files that need
199       it for adjoint/tl #defines
200     o re-worked the build logic in genmake2 to support AD_CONFIG.h
201     o removed tools/genmake since it no longer works
202    
203    checkpoint51n_post
204    o modifications to make FREEZE flux visible to pkg/kpp
205      - moved surfaceTendencyTice from pkg/seaice to main code
206      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
207      - subroutine FREEZE now limits only surface temperature
208        (this means new output.txt for global_ocean.90x40x15,
209         global_ocean.cs32x15, and global_with_exf)
210    o added surface flux output variables to TIMEAVE_STATVARS
211    
212    checkpoint51n_pre
213    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
214    o added [#include "AD_CONFIG.h"] to all files that use the following
215      defines:
216      - ALLOW_ADJOINT_RUN
217      - ALLOW_TANGENTLINEAR_RUN
218      - ALLOW_ECCO_OPTIMIZATION
219    
220    checkpoint51m_post
221    o incorporating changes to get TAMC/TAF working in genmake2
222      - added new TAMC/TAF targets to the Makefile
223      - various cleanups related to package handling
224      - these changes should have no impact on the forward model
225    
226    checkpoint51l_post
227    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
228     - faster algorithm for cal_addtime.F
229     - higher precision arithmetic, where needed
230     - pkg/exf *startdate variables changed from calendar date to
231       model integration time
232    
233    checkpoint51l_pre
234    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
235    o enable to apply restoring on S & T only in a latitude band.
236    o update output (external_forcing_surf modif. change truncation errors)
237       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
238    
239    checkpoint51k_post
240    o change default to: useNHMTerms=.FALSE.
241     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
242       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
243     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
244        exp1, ideal_2D_oce
245     - change data file of oceanic exp (leave the results unchanged for now)
246       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
247    o set gravitySign automatically according to the vertical coordinate used
248      (and change sign: back to "logical" value: +1 when R increases downward)
249    o added an include barrier to the default CPP_OPTIONS.h and
250      removed the #include "PACKAGES_CONFIG.h" from it
251    o fix a bug in mom_fluxform (from chk51j_post)
252    
253    checkpoint51j_post
254    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
255    o adjusted some flow directives (dynamics, thermodynamics)
256    o added cubed-sphere case to test cost function
257    o heckpoint_lev?_directives.h now include
258      pkg-specific directives, whenever those are enabled.
259    o Moving pkg-specific flow directives to corresponding pkg
260      Moving pkg-specific differentiation list to corresponding pkg
261      Moving pkg-specific checkpoint-lev storing to corresponding pkg
262      ---> conventions are
263           - pkg_ad.flow
264           - pkg_ad_diff.list
265           - pkg_ad_check_lev?_dir.h
266    
267    checkpoint51i_post
268    o merge of the branch-genmake2
269      - knowingly breaks the older genmake
270      - automatic generation of all ALLOW_${PKG_NAME} defines
271      - new testreport supersedes older testscript
272    o large number of package inclusion and header cleanups
273    checkpoint51i_pre
274    
275    o new output for adjoin of global ocean vector invariant
276    o fix for checkpoint of thermodynamic seaice and bulk_force
277    o Steph gchem various cleanups
278    
279    checkpoint 51h_pre
280    o fixed some single quotes
281    o modify gchem pkg to be more versatile
282    o modifications to clean up dic pkg
283    o add pkg/cfc
284    
285    checkpoint51g_post
286    o provide links for ARPACK and ADM*TLM
287    o start removing verification/vero/
288    o update AD-related stuff
289      (in particular some IF-statements in model/src/ routines)
290    o adding to verification/global_ocean.90x40x15/ adjoint of
291      vector invariant setup
292    
293    checkpoint51f_post
294    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
295    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
296      of tracer Green's fucntions for ocean inversion project.
297    
298    checkpoint51f_pre
299    o Added on-the-fly spatial interpolation capability
300        "USE_EXF_INTERPOLATION" to pkg/exf.
301      - This is a temporary Cartesian-grid hack until
302        the super-duper ESMF coupler becomes available.
303      - See verification/global_with_exf/README for usage example.
304      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
305        flags and modified pkg/seaice accordingly.
306    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
307        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
308        non-local transport term.
309    
310    checkpoint51e_post
311    o pkg/mom_vecinv:
312      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
313      - add time-ave diagnostic of vorticity advection.
314    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
315    o atmospheric geopotential: - include water vapor effect;
316                                - use p^kappa in p* scaling.
317    o land pkg: read initial state from files.
318    o AIM : add stratospheric drag in the upper level
319    
320    checkpoint51d_post
321    o change function ILNBLNK (=> last non-blank char.) to return zero
322      (instead of the string length) when the string. char is empty
323    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
324    o modif's to restore TAMC compatibility
325      - avoid "_d" constructs in PARAMETER declarations
326      - avoid interrupting lines by comment lines
327    o Use cluster local disks for purely local I/O
328      vs. globally visible disks needed for ctrl stuff
329      (merged from ecco-branch)
330      - new active_file_loc... and mdsio_..._loc routines
331      - affected packages: autodiff, ctrl, grdchk, mdsio
332    
333    checkpoint51c_post
334    o introducing integer flag debugLevel
335      - debLevZero: suppress all output
336      - debLevA: standard
337      - debLevB: equivalent to current debugMode=.TRUE.
338    o introducing pathname variable mdsioLocalDir for mdsio
339      that can be specified at runtime
340      (relevant for cluster I/O to local disk)
341    `
342    >>>checkpoint51b_post
343    adjoint of ptracers
344    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
345    o extended state in checkpoint_lev?, etc.
346    o alternative ctrl/cost with tr1 or ptracer
347    o new comlev1_bibj_ptracers
348    o new ptracers.flow
349    o made ptracers_forcing same as external_forcing_s
350    o added verification for adjoint with ptracers
351      - adm. grdchk fail so far
352      - tlm. grdchk OK
353      - checked tapelev/comlev recomputations: OK
354    <<<checkpoint51b_pre
355    
356    checkpoint51a_post
357    o added code for biogeochemistry package
358      - new pkgs: dic, gchem
359      - new subroutine in ptracers
360    o modify code for biogeo packages
361      - in model/src and pkg/ptracers
362    
363    checkpoint51
364    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
365      - autodiff, ctrl, exf, grdchk, seaice
366      kept separate packages
367      - cost, ecco, obcs
368    o updating verification/internal_wave, verification/lab_sea
369      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
370    
371    checkpoint50i_post
372    o Preparing next differentiable checkpoint and sync
373      of MAIN vs. ecco-branch
374      - 1st step: this one is differentiable
375      - 2nd step: next(! not this) checkpoint will have updated packages
376                  from ecco-branch)
377    
378    checkpoint50h_post
379    o new package "land": provide surface BC for AIM.
380    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
381    o AIM: use true log-P extrapolation for near surface temp (= as in
382        F.Molteni paper) ; update aim.5l_cs output.
383    o New variable in PARM03 for more flexible pickups
384    o somewhat cleaned package initialisation sequence for
385      ctrl/ cost/ ecco/ in packages_... routines
386    
387    checkpoint50g_post
388    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
389      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
390      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
391        made the default because of faster convergence than ADI
392    
393    checkpoint50f_post
394    o exf totally restructured
395      - replaced all exf_set_ routines by one generic exf_set_gen.F
396        and made sure it's still differentiable
397      - split exf_getffields.F into new exf_bulkformulae.F
398      - exf_inscal_/exf_outscal_ suffixes consistent with field names
399      - updated adjoint/makefile and relevant verif. accordingly
400    
401    checkpoint50f_pre
402     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
403          + change Evap over land. (update aim.5l_cs output)
404     o added missing .cvsignores and made uniform across expts
405     o changed configuration of tidal_basin_2d expt
406     o added pkg/debug functions for tracing code in fatal crashes
407     o tidied pkg/monitor to use MONITOR_OPTIONS.h
408     o new fn in pkg/monitor to stop model if solution grows too big
409     o removed lots of single quotes from comments
410    
411    checkpoint50e_post
412    o make KPP work with PTRACERS
413     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
414       nearly a copy of kpp_transport_s
415     - there is no analogue to SurfaceTendencyS, so I have to use
416       gPtr(of the surface layer) instead
417    o add a new platform SunFire+mpi (SunFire 15000) to genmake
418    checkpoint50e_pre
419    
420    checkpoint50d_post
421    o change kpp output from multiple-record state files to single-record state
422      files analogous to write_state.F
423    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
424      analogous to the cg2d-related output.
425    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
426      so that writing to internal file fn (with length 512) fails.
427    checkpoint50d_pre
428    
429    checkpoint50c_post
430    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
431    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
432    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
433    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
434    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
435    
436    checkpoint50c_pre
437    Merging from release1_p13:
438    o bug fix for pkg/seaice dynamic solver
439    o Added SEAICE_initialHEFF to pkg/seaice
440    
441    checkpoint50b_post
442    o store u*,v* in gU,V instead of in guNm1,gvNm1
443    o in order to put the momForcing out of the Adams-Bashforth:
444      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
445      to timestep.F
446    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
447    o re-generate output for highly sensitive test-exp:
448       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
449    
450    checkpoint50b_pre
451    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
452    o corrected CPP option mismatch in exf_Bulk... functions for case
453      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
454    
455    checkpoint50a_post
456    o Bug fix for merging between c50 and KPP.
457      ikey was passed from thermodynamics to kpp_calc via
458      common block rather than being recomputed in kpp_calc,
459      in contradiction with new key itdkey.
460      New key ikppkey created, and tamc.h headers updated.
461    
462    checkpoint50
463    - 2nd step of merge with ecco-branch:
464      merge changes in ecco-branch back into main trunk
465    - bug fix in find_alpha
466    - more storing in gmredi_calc_tensor.F, kpp_routines.F
467    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
468    - merged some sliced AD support routines
469    
470    checkpoint49
471    merged from ecco-branch:
472    o exf:
473      - Enable initialisation of forcing fields to constant
474        (runtime) values.
475      - in exf_getffields.F
476        Reduce i-/j-loop to interior domain, discarding overlaps.
477        That also fixes wrong TAF-key computations for key_1, key_2
478        with bulf formulae.
479      - exf_init.F modify #ifdef for exf_init_evap
480      - exf_getffieldrec.F, ctrl_getrec.F
481        The following INT-usages are not safe:
482          fldsecs  = int(fldsecs/fldperiod)*fldperiod
483          fldcount = int(fldsecs/fldperiod) + 1
484        and were modified.
485    o autodiff: checkpoint_lev...
486      - updated storing for bulk formulae (some arrays were missing)
487      - added state for seaice package
488      - synchronized with main branch
489    o DIVA:
490      Modif.s in
491      - the_main_loop.F
492      - the_model_main.F
493      and added cost_final_restore.F cost_final_store.F
494      o With these changes, it is possible to fully separate
495        the first forward run to compute the cost function (mdthe_main_loop)
496        and adjoint runs over individual DIVA intervals (adthe_main_loop)
497        into separate model executions.
498        This enables better tuning of DIVA to given queue sizes.
499      o Loss of cost function value in consecutive DIVA runs is
500        fixed by storing to 'costfinal' file.
501      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
502        beginning/end of adjoint integration is accounted for.
503      The current changes apply to TAF-1.4.26.
504      TAF has one remaining bug, requiring one manual change
505      (see MITgcm manual).
506    o cal: synchronized between MAIN and ecco-branch
507    
508    checkpoint48i_post
509    o Changes to restore differentiability of code w.r.t. previous tag
510      (mostly adding new routines to make list and replacing
511      pressure by totPhiHyd).
512    o Updated and merged grdchk package
513      - has both ADM and TLM checks
514      - works for single- and multi-proc.
515      - output cleaned
516      - worked successfully for parallel DIVA
517    o genmake:
518      - Adding -platform=SP4
519      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
520    o Modif. for DIVA:
521      ctrl_unpack should not be called in intermediate DIVA interval.
522      (similar thing would apply for active files such as
523      tbar, sbar, psbar, which should not be reinitialised;
524      only relevant for ecco-branch)
525    
526    checkpoint48h_post
527    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
528    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
529    o Added SEAICE_initialHEFF to pkg/seaice
530    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
531    
532    checkpoint48g_post
533    --- EOS:
534    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
535      store total Potential in totPhyHyd for diagnostics & EOS.
536    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
537    --- Pressure/geopotential gradient:
538    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
539    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
540      ( changes results of global_ocean_pressure )
541    o NLFS + z-coord.: add eta*Rho' contribution.
542    o accurate phiHyd when using interface-W at the middle between 2 centers
543     ( changes results of ideal_2D_oce )
544    o includes r* 2nd term in potential gradient.
545    
546    checkpoint48f_post
547    Merging from release1_p12:
548    o Modifications for using pkg/exf with pkg/seaice
549      - improved description of the various forcing configurations
550      - added basic radiation bulk formulae to pkg/exf
551      - units/sign fix for evap computation in exf_getffields.F
552      - updated verification/global_with_exf/results/output.txt
553    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
554      (SBO) core products, including oceanic mass, center-of-mass,
555      angular, and bottom pressure (see pkg/sbo/README.sbo).
556    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
557      to avoid negative values in shallow regions.
558      - updated verification/natl_box/results/output.txt
559      - updated verification/lab_sea/results/output.txt
560    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
561    o Added useSingleCpuIO option (see PARAMS.h).
562    o Updated useSingleCpuIO option in mdsio_writefield.F to
563      work with multi-field files, e.g., for single-file pickup.
564    o pkg/seaice:
565      - bug fix in growth.F: QNET for no shortwave case
566      - added HeffFile for specifying initial sea-ice thickness
567      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
568    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
569      kpp_transport_t.F, forward_step.F, and the_main_loop.F
570    o pkg/seaice:
571      - adjoint-friendly modifications
572      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
573    
574    checkpoint48e_post
575    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
576    o dynamics: change definition of computational domain & adapt mom_fluxform
577      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
578    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
579        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
580        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
581        global_ocean.90x40x15 global_with_exf global_ocean_pressure
582        inverted_barometer solid-body.cs-32x32x1
583      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
584    
585    checkpoint48d_post
586    o in preparation for r*:
587     a) use pre-computed gradient of hydrostatic potential:
588        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
589     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
590        => affects results of glob_oce_pressure (different truncation error)  
591      update output.txt of ideal_2D_oce & global_ocean_pressure
592    
593    checkpoint48d_pre
594    o in preparation for r*:
595      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
596      pass the 2 comp. of the grad. as arguments to momentum S/R.
597      but for the moment, only used if it does not change the results.
598    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
599    
600    checkpoint48c_post
601    Modifications in treatment of initial flux forcing controls
602    to avoid extra storing of flux fields.
603    
604    checkpoint48c_pre
605    o Added tidal_basin_2d experiment (currently 1D!)
606    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
607    
608    checkpoint48b_post
609    o r* coordinate added in #ifdef NONLIN_FRSURF block.
610     (modification to pressure gradient not yet implemented)
611    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
612      (for U & V) that are used for vertical advection of momentum.
613    
614    checkpoint48a_post
615    o In preparation for r*, use temp. array to compute vertical transport
616       in flux-form momentum pkg. => change results of few test-exp.
617      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
618                        lab_sea, natl_box & plume_on_slope
619    
620    checkpoint48
621    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
622    
623    checkpoint47j_post
624    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
625    o moved adexch from forward_step to addummy_in_stepping
626    o added exch in ctrl_map_...
627    o aveFreq.=0. at end of cost_final to avoid overwrite in
628      reverse checkpointing loop
629    o Yet more changes in gmredi:
630      * adgmredi_calc_tensor
631        avoiding all recomputation of gmredi_slope_limit
632      * adgmredi_x/y/rtransport
633        added flag for excessive storing to avoid recomp. of
634        u/v/rtans, dTdx/y/z
635        -> this is not really necessary and very memory-consuming
636      * adgmredi_slope_psi:
637        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
638      * gmredi_slope_limit
639        re-activated full calculation of taperfct for case 'ac02'
640    o updating verification/ adjoints of carbon, global_ocean.90x40x15
641    
642    checkpoint47i_post
643    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
644    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
645      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
646    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
647    o gmredi: fix few bugs.
648    
649    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
650    This will be a good checkpoint to plug into the ecco-branch.
651    o few modif.'s to get latest version adjointed
652      (mainly kick out code in ini_linear_phisurf)
653    o modif's to run adjoint with exactConserv
654    o case GM_BOLUS_ADVEC should be cleaned
655      S/R gmredi_slope_psi should be cleaned
656    o verification/carbon now has exactConserv=.TRUE.
657    
658    checkpoint47g_post
659    o time-average AIM output: becomes independent from statvars time-average
660      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
661    o After TAF bug fix:
662      Tested adjoint of gmredi package.
663      Tests were done with checkpoint47 rather than with latest
664      checkpoint47f_post since the latter is broken for the adjoint
665      verification/carbon/ contains both ADM and TLM gradient checks.
666    Here they are, before they get changed/lost/stolen.
667    Mostly modif.'s to fix numerical sensitivities.
668    Gradient checks OK for
669    - GM_taper_scheme:
670      * clipping
671      * ac02
672      * linear
673      * glw91
674      * dm95
675      * ldd97
676    - GMREDI_OPTIONS:
677      * GM_VISBECK_VARIABLE_K
678      * GM_NON_UNITY_DIAGONAL
679      * GM_EXTRA_DIAGONAL
680      * GM_BOLUS_ADVEC
681    in conjunction with data.gmredi parameters to be checked in
682    in a few minutes under verification/carbon/code/
683    
684    checkpoint47f_post
685    Merging from release1_p10:
686    o modifications for using pkg/exf with pkg/seaice
687      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
688        and SEAICE_EXTERNAL_FLUXES
689      - pkg/exf CPP options EXF_READ_EVAP and
690        EXF_NO_BULK_COMPUTATIONS
691      - usage examples are Experiments 8 and 9 in
692        verification/lab_sea/README
693      - verification/lab_sea default experiment now uses
694        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
695    
696    checkpoint47e_post
697    o created a tag prior to creating a branch
698    
699    checkpoint47d_post
700    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
701      at the bottom boundary had an erroneous half slip boundary condition
702    o added bottom drag and no slip boundary condition capabilities to
703      oceanic pressure coordinates code
704    o added new verification experiment global_ocean_pressure, this experiment is
705      also described in the tutorial section of the manual
706    checkpoint47d_pre
707    
708    checkpoint47c_post
709    o Added a verification experiment for a global cubed-sphere ocean run
710      -  verification/global_ocean.cubed32x32x30
711      -  uses pkg/therm_seaice and pkg/bulk_forcing
712    
713    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
714    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
715      when using P-coordinate; only implemented for atmospheric config.
716    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
717      NOTES: requires option NONLIN_FRSURF to be "#define".
718    o update advect_xz/results/output.txt (left from checkpoint44g_post)
719    
720    checkpoint47b_post
721    Merging from release1_p9:
722    o pkg/seaice
723      - removed GOTO's and added taf directives
724      - double precision constants to reduce the g77 (Linux)
725        to F77 (SGI) differences reported in release1_p8
726    o tools/genmake
727      - added SGI options
728    o verification/testscript
729      - updated to that of checkpoint47a_post
730    o verification/global_ocean.90x40x15/input/eedata
731      - modified for SGI f77 compatibility
732    o verification/lab_sea
733      - added description of sea-ice model
734      - added missing matlab routines
735      - added test of thermodynamics parallelization
736    
737    checkpoint47a_post
738    o new pkg: aim_v23
739     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
740       for now, keep the same surface forcing as before.
741     - Part-Cell implemented into AIM; check that Heat & Water are conserved
742     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
743     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
744    o add diagnostic of surface correction term in monitor output
745    
746    o bulk_force and therm_seaice
747    - Two packages:  bulk_force (Bulk forcing)
748      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
749    - Earlier integration from Stephaine Dutkiewicz
750      and Patrick Heimbach.
751    - Two ifdef statements for compile time,
752       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
753    
754    checkpoint47
755    differentiable version of checkpoint46n_post
756    o bug fix in quasihydrostaticterms
757    o * "clean" adjoint code (in terms of extensive recomputations)
758        can now be obtained for all GMREDI options (i.e. for
759        - GM_VISBECK_VARIABLE_K
760        - GM_NON_UNITY_DIAGONAL
761        - GM_EXTRA_DIAGONAL
762        - GM_BOLUS_ADVEC )
763      * However, wrong gradient check problem remains unsolved.
764      * New CPP options have been introduced for different
765        tapering schemes
766    o external_fields_load now part of differentiation list
767    o pressure needs multiple storing;
768      would be nice to have store_pressure at beginning or
769      end of forward_step, e.g. by having phiHyd global (5-dim.)
770      (NB: pressure is needed for certain cases in find_rho,
771      which is also invoked through convective_adjustment).
772    o recomputations in find_rho for cases
773     'JMD95'/'UNESCO' or 'MDJWF' are OK.
774    o #define ATMOSPHERIC_LOADING should be differentiable
775    o ini_forcing shifted to begining of initialise_varia
776    o Incorporating QNVS line search routines into MITgcm
777      (this is separate code, and therefore not under pkg)
778      lsopt/, optim/
779    o Updated verification/carbon/
780      - #define GM_VISBECK_VARIABLE_K
781      - GM_taper_scheme    = 'ldd97'    
782    
783    checkpoint46n_post
784    Merging from release1_p8:
785    o verification/natl_box:
786      updating new external_fields_load routine
787    o New package: pkg/seaice
788      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
789      The sea-ice code is based on Hibler (1979-1980).
790      Two sea-ice dynamic solvers, ADI and LSR, are included.
791      In addition to computing prognostic sea-ice variables and diagnosing
792      the forcing/external data fields that drive the ocean model,
793      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
794      The implied surface heat flux is then stored in variable
795      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
796      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
797      non-local transport term.  Because this call precedes model
798      thermodynamics, temperature under sea-ice may not be "exactly" at
799      the freezing point by the time theta is dumped or time-averaged.
800      N.B.: fairly large differences in accuracy occur across
801            different platforms/compilers; comparison between
802            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
803            generated output gives:
804       T           S           U           V
805      C D M    c        m  s        m  s        m  s        m  s
806      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
807      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
808      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
809    
810      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
811    o GAD:
812      - generated new common blocks to account for call of
813        same gad routines with differing traceridentities
814        (needed to modify tracerIdentity indices in GAD.h)
815      - generated separate common blocks for case useCubedSphereExchange
816        (Department of Futurology)
817      - parameter lists to gmredi_?transport: added tracerIdentity
818      - added new key indices to tamc.h
819    o external_fields_load:
820      - added this routine to TAF list
821      - needed to make some common blocks global and additional storing
822        along the same lines as exf package (checkpoint_lev?_directives.h)
823    o exf:
824      updated external forcing package
825      - bug fixes carried over from ecco-branch
826        (missing OBCS_OPTIONS.h in two routines)
827      - enable easy to use "no forcing".
828      - added exf I/O for atmospheric loading
829      - added exf I/O for runoff data
830      - transfered scaling between exf <-> MITgcm to exf namelist
831    o Adding new verification experiment global_with_exf.
832      This verification experiment is almost identical to the
833      global_ocean.90x40x15 experiment, except that it uses
834      the exf (and cal) package instead of the
835      external_fields_load routine (cf README file).
836    
837    checkpoint46m_post
838    o modified testscript to return -- when there are no lines of "%MON" output
839    o added new flag "quasiHydrostatic" for QH mode
840      and new routine quasihydrostaticterms()
841    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
842      New routine: mom_u_coriolis_nh()
843    o fixed sign of non-hydrostatic metric terms in u and v equations.
844      Depend on correct sign of gravitySign.
845    o added work.pc* to .cvsignore in aim directories using ifc
846    o introduced flag for controllin non-hydrostatic metric terms
847    o removed gravitySign from PARM04
848    o switched to g77/ifc from pgf77 in aim experiments
849    
850    checkpoint46l_post
851    o made convective adjustment work with pressure coordinates:
852     - changed the direction of k-loop in convective_adjustment.F for the
853       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
854     - adjusted the reference pressure k-index in convective_adjustment.F
855     - adjusted the convection condition in convect.F (in analogy to
856       calc_ivdc.F)
857     - convective_adjustment no longer computes anything on the halos
858     - removed the warnings about negative salinity from find_rho.F and
859       find_alpha.F; instead the new routine look_for_neg_salinity, called
860       at the beginning of find_rho, find_alpha, and find_beta, does a
861       check of the entire slice, if CPP-option
862       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
863    checkpoint46l_pre
864    
865    checkpoint46k_post
866    o fixed the verification/global_ocean.90x40x15 experiment:
867     - new bathymetry (the world according to A., JMC, and M.)
868     - new initial fields and forcing fields (*.bin files)
869     - new POLY3.COEFFS (for the next release one should switch to a full
870       equation of state: JMD95P or MDJWF)
871     - fixed several errors and redundancies in the data file
872     - experiment uses looped cells
873     - added matlab directory with diagnostic scripts for plotting of output
874    
875    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
876     - read AIM physics parameters from a file (data.aimphys)
877     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
878    
879    checkpoint46j_post
880    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
881    o move wVel computation at the end of the time step, in S/R integr_continuity
882    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
883    o update timeave pkg for wVel diagnostic.
884    checkpoint46j_pre
885    
886    checkpoint46i_post
887    o Clean up AIM package (and keep the results unchanged):
888      include CPP_OPTION and use IMPLICT NONE in all routines ;
889      declare all the variables _RL ; use _d 0 for all numerical constants.
890      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
891    
892    checkpoint46h_post
893    o cleaned up the use of rhoNil and rhoConst.
894      - rhoNil should only appear in the LINEAR equation of state, everywhere
895        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
896        and the dynamical equations are all divided by rhoConst
897    o introduced new parameter rhoConstFresh, a reference density of fresh
898      water, to remove the fresh water flux's dependence on rhoNil. The default
899      value is 999.8 kg/m^3
900    o cleanup up external_forcing.F and external_forcing_surf.F
901      - can now be used by both OCEANIC and OCEANICP
902    checkpoint46h_pre
903    
904     Added code to convert surface volume flux (fresh water) into
905     a mass flux when using P coordinates in the ocean (OCEANICP).
906     Note: It assumes you have set rho0=rhoConst=density of fresh water.
907    
908    checkpoint46g_post
909    o Include a new diagnostic variable phiHydLow for the ocean model
910      - in z-coordinates, it is the bottom pressure anomaly
911      - in p-coordinates, it is the sea surface elevation
912      - in both cases, these variable have global drift, reflecting the mass
913        drift in z-coordinates and the volume drift in p-coordinates
914      - included time averaging for phiHydLow, be aware of the drift!
915    o depth-dependent computation of Bo_surf for pressure coordinates
916      in the ocean (buoyancyRelation='OCEANICP')
917      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
918        Theta, Salinity, and Pressure in the parameter list. This routine is
919        presently contained in find_rho.F. This routine does not give the
920        correct density for 'POLY3', which would be a z-dependent reference
921        density.
922    o cleaned up find_rho
923      - removed obsolete 'eqn' from the parameter list.
924    o added two new verification experiments: gop and goz
925      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
926    checkpoint46g_pre
927    
928    checkpoint46f_post
929    o Enable tangent linear (forward mode) gradient checks:
930      - extended active file handling to g_... files
931      - added TANGENT_SIMULATION to theSimulationMode
932      - extended grdchk package accordingly
933    o added tangent linear setup in verification/carbon/code_ftl
934    o added adjoint setup in verification/front_relax/code_ad
935    
936    checkpoint46e_post
937    o Added new equation of state -> MDJWF
938      - EOS of McDougall et al., 2002, JAOT, submitted
939      - caveat: the equation of state is only valid for a smaller (more
940        realistic?) range of values than JMD95P/Z and UNESCO
941      - added masks to the calculation of pressure in store_pressure
942      - added more check values for density in check_eos (ini_eos.F), some of
943        the old check values are out of the range of the MDJWF-eos, so don't
944        expect perfect matches for those
945    checkpoint46e_pre
946    
947    checkpoint46d_post
948    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
949      'OCEANICP', also initialised field pressure correctly in ini_eos in the
950      case of pressure coordinates. eosType='JMD95Z' in
951      combination with buoyancyRelation='OCEANICP' now causes an error.
952    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
953      in find_alpha/beta.
954    checkpoint46d_pre
955    
956    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
957      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
958    
959    checkpoint46c_post
960    o Changes necessary for ocean in p-coordinates
961     -  Added new buoyancy relation = 'OCEANICP'
962     -  Added new parameters = gravitySign (this used to be contained inside
963        the factor dRdZ which I added when we first switched to R coordinates).
964     X GM/Redi is not compatible (yet)
965     X bottom drag and no-slip need to be debugged.
966    checkpoint46c_pre
967    
968    checkpoint46b_post
969    o Added new equation of state -> JMD95Z and JMD95P
970      - EOS of Jackett and McDougall, 1995, JAOT
971      - moved all EOS parameters into EOS.h
972      - new routines ini_eos.F, store_pressure.F
973    o Added UNESCO EOS, but not recommended because it requires
974      in-situ temperature (see JMD95)
975    o Modified formatting for knudsen2.f in utils/knudsen2 and added
976      unesco.f to be used with POLY3
977    checkpoint46b_pre
978    
979    checkpoint46a_post
980    o Added (atmospheric) pressure loading
981      - new field in FFIELDS.h, etc...
982      - new cpp flag ATMOSPHERIC_LOADING
983    o Changed hFacC to _hFacC in calc_phi_hyd.F
984    o Added SHORTWAVE_HEATING to some files for consistency
985    checkpoint46a_pre
986    
987    checkpoint46
988    further merges from release1_p5
989    o new ctrl package
990      - adopted from ECCO environment to enable optimization
991      - added Eliassen Palm fluxes to controls
992    o added Eliassen Palm flux controls to gradient check package
993    o cost package
994      - Compatible with new ctrl package
995      - added Eliassen Palm cost hooks
996      - modif's of existing cost functions
997    o Adjoint-related bug fixes in kpp:
998      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
999      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1000    o autodiff package
1001      - flow directives:
1002        + new for S/R do_the_model_io
1003        + enhanced for S/R checkpoint
1004        + new gmredi.flow
1005      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1006        disable adcommon.h/g_common.h by default.
1007      - fixed problem for adjoint of global_max
1008    o modified verification/carbon/
1009    o New setup for adjoint of global_ocean
1010    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1011    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1012    o incorporated hooks for sponge layer code (external_forcing.F)
1013    
1014    checkpoint45d_post
1015    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1016    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1017      (affects plume_on_slope "cg2d" output)
1018    o add new parameter deltaTfreesurf for free-surface time stepping
1019    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1020    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1021    o change phiMin in exp1 (to agree with documentation)
1022    o add new flags:
1023     - T,S forcing inside/outside Adams-Bashforth
1024     - turn off temp,salt advection and/or forcing
1025     - for each tracer, define internal flag for multiDimAdvection & A-B
1026    o monitor: change definition of KE to check conservation of Energy
1027    
1028    checkpoint45c_post
1029    o Removed f90 comments ("!")
1030    o Modified initialisations to enable exf package for MITgcm
1031      (without invoking ECCO_PACKAGE).
1032    o modifications to gradient check package (Martin Losch)
1033      - enable centered differences
1034      - modified format of standard output
1035    
1036    checkpoint45b_post
1037    o cleaned exchange calls in cg2d
1038    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1039    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1040      to configure barotropic setup (Martin Losch)
1041    o moved some initialisations within bi,bj loop in dynamics
1042      (TAF flow dependency)
1043    o in initialise_varia, moved call packages_init_variables
1044      before convective_adjustment_init
1045      (corresponding adjustment of TAF tape initialisation).
1046    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1047    
1048    checkpoint45a_post
1049    o compute Rho over the whole domain (extend iMin,jMin indices)
1050    o specific exchange for X-slice domain (case Ny=1)
1051    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1052    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1053    
1054    checkpoint44h_post = checkpoint45
1055    o Fix to restore differentiability:
1056      place at which packages_init_variables is called in
1057      initialise_varia is crucial for reverse control flow.
1058    o modifications in GMRedi to enable stable adjoint
1059      (corresponding modif's in thermodynamics, dynamics)
1060    o added missing hook for sponge layer code in external_forcing
1061    o modified test cost functions
1062    o storing in gad_advection (plus removal of write(0,*)!
1063    o missing headers TR1.h added in convective_adjustment routines
1064    o errorMessageUnit set non-equal zero in eeboot
1065      (conflict on some platforms, e.g. IBM SP3)
1066    o modified carbon verif.
1067    
1068    checkpoint44h_pre
1069    o vertical grid option: allow to put the Interface at the middle between
1070      2 cell-centers ; replace delZ in pkg/kpp by drF.
1071    o GM Advective form: Tracers are advected using the residual transport (=
1072      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1073    
1074    checkpoint44g_post
1075    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1076      results) ; ifdef missing in thermodynamics.F
1077    
1078    checkpoint44f_pre,checkpoint44f_post
1079    o added PTRACERS package
1080      This allows an arbitrary number of passive tracers to be integrated
1081      forward simultaneously with the dynamicaly model.
1082      + Implemented so far:
1083        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1084        - I/O and checkpointing
1085        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1086      + Not implemented so far:
1087        - KPP
1088        - OBCS
1089      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1090        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1091        line in data.pkg.
1092      + This package is disabled by default since it increases storage.
1093    
1094    
1095    o testscript: added -cleanup option
1096    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1097                 b) enable to filter 2D fields.
1098    
1099    checkpoint44e_pre,post
1100    o re-wrote convective adjustment to use pre-calculated weights
1101      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1102      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1103      Original calls to convect() still in place.
1104    
1105    chkpt44d_pre,post
1106    o added missing EXCLUDE_MONITOR flags
1107    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1108      (incompatible typ in MIN/MAX expressions caused problems
1109      on IBM SP3)
1110    o in genmake added variable MAKEDEPEND
1111      plus resetting for case SunOS
1112    o added timer_stats.c routine for IBM SP3
1113    o removed variables in dynamics
1114    !!! I forgot to create tag chkpt44d_pre !!!
1115    !!! But chkpt44d_pre = chkpt44c_post    !!!
1116    
1117    o real fresh water flux implemented with non-linear free-surface.
1118    
1119    chkpt44c_pre,post
1120    o few fix (mask in shap_s2, EmPmR in external_field_load,
1121      USE_NATURAL_BCS in solve_for_P);
1122    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1123    
1124    checkpoint44b_pre/_post
1125    o merge of relevant stuff from the ecco-branch:
1126      - genmake: removed $S64 overwrite for case SunOS
1127      - pkg/exf: update and corrections for field swapping and obcs
1128      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1129                  harmonized between ECCO and MITgcm
1130      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1131                      updated checkpointing_lev... lists for obcs
1132      - model/src: minor changes in forward_step, plot_field
1133                   added directive for divided adjoint in the_main_loop
1134      - pkg/mdsio: added mdsio_gl_slice
1135    
1136    o check parameters & config (chkpt44a_pre,post)
1137    o OBC and NonLin_FrSurf.
1138    
1139    checkpoint44
1140    o fix bug in mom_vi_del2uv
1141    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1142    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1143    o update AIM experiments (NCEP input files)
1144    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1145    o added some stuff for AD
1146    
1147    checkpoint43
1148    o added two new advection tests
1149    o added global 4x4 degree ocean test
1150    o added test of H&S94 with free surface on cube
1151    o some final mods for gradient check, adjoint,...
1152    
1153    checkpoint42
1154      Fixed AD-related problems:
1155    o Store directives up-to-date with re-arranged Adams-Bashforth
1156      (mainly thermodynamics.F)
1157    o New store directives for multi-dim. advection schemes
1158      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1159      * new common block and key passkey
1160      (mainly gad_advection.F)
1161    o Modified store directives for split of dynamics/thermodynamics
1162      for the case ALLOW_KPP
1163    o Cleaned argument list for timestep_tracer.F
1164    
1165    checkpoint41
1166    o re-formatted/added comments in prologues of key subroutines
1167      to work with protex
1168    
1169    checkpoint40
1170    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1171    o added FLT (floats) package from Arne along with demo. experiment
1172    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1173      implementation of forward-in-time forcing terms
1174    o more mods for non-linear free-surface including new variable
1175    o modified multi-dim method to work on cube
1176    o bug fix in KPP (from DM)
1177    
1178    checkpoint40pre9
1179    o added DST advection schemes
1180    o fix MPI bug on SGI's
1181    o modifications for non-linear free-surface
1182    o fixed conditionals for fixed flow/passive tracer only mode
1183    o added tension/strain form of stress tensor
1184    o changes to commenting of arguments for TAF/TAMC
1185    o added/updated many matlab scripts
1186    o added multi-dimensional advection method for tracers
1187      
1188    checkpoint40pre8
1189    o new package rw/
1190      Added method for dumping intermediate local arrays:
1191      mdsio_writetile - same as mdsio_writefield except works from inside
1192                        bi,bj loop
1193      mdsio_writelocal - same as mdsio_writetile except works for local
1194                         arrays
1195      write_local_r? - higher-level wrapper for mdsio_writelocal
1196      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1197      Example given at end of mom_vecinv.F that dumps some local arrays.
1198    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1199      control flux-form versus vector invariant code.
1200      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1201      or genmake -DISABLE ...
1202    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1203      (additional storing is now needed for case vecinv;
1204      currently nothing implemented to switch this storing off
1205      in case fluxform is used since no CPP flag available).
1206    
1207    checkpoint40pre7
1208    o bug fix in dynamics.F
1209      calc_viscosity called before k=1,Nr loop.
1210    o added some #ifdef's ALLOW_PASSIVE_TRACER
1211    o cleaned initialisations in ctrl_map_ini
1212      related to TAF
1213    
1214    checkpoint40pre6
1215    o split dynamics into thermodynamics & dynamics
1216    o corresponding split of calc_diffusivity into
1217      calc_diffusivity, calc_viscosity
1218      (kpp_calc_diff, kpp_calc_visc).
1219    o Added diffkr, kapgm to control variables
1220    o bug fix in gmredi_slope_limit for ldd97
1221    
1222    checkpoint40pre5
1223    o proper initialization of Adams-Bashforth time stepping
1224      + uses forward step for very first step of model (iter=0)
1225    o re-generated *all* output since almost all output is modified by this
1226      change (sorry but we've been putting this one off for about 2 years)
1227      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1228        *not* regenerated since they are already out of date and I don't
1229        want to create the impression that they are suddenly working.
1230    o removed KAP stuff for DEC's
1231    o modified/added many .cvsignore files in */code and */input
1232    o added new expt "solid-body.cs-32x32x1"
1233      + this uses an alternative form of ini_curvilinear_grid.F which
1234        is not necessarily any better than the current one...
1235    
1236    checkpoint40pre4
1237    o added re-initialisations of utrans,vtrans,rtrans in
1238      calc_common_factors which are crucial for TAF.
1239    o extended iMin,jMin range for calc_common_factors,
1240      calc_diffusivity
1241    o added option ALLOW_PASSIVE_TRACER
1242    o a few minor updates and fixes
1243    
1244    checkpoint40pre3
1245    o created calc_gtr1.F for gad package
1246    o split the_main_loop and re-introduced forward_step
1247    o some recomputations of nIter0 for TAMC
1248    
1249    checkpoint40pre2
1250    o Updated to latest branch of AJA, JMC
1251    o Added gradient check package
1252    o Added routines for passive tracer handling
1253    o Added carbon sequestration sensitivity experiment
1254    
1255    checkpoint39
1256     o Modifications and fixes to support TAMC
1257       (mainly missing or wrong directives)
1258     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1259       in addummy_in_stepping
1260     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1261     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1262     o Included following packages:
1263       cal: calendar
1264       exf: external forcing
1265       ecco: essential routines to control use of cal, exf
1266             (NB: this is not the full ECCO environment)
1267     o disabled some packages by default in genmake
1268    
1269    checkpoint38
1270     o see notes_c37_adj.txt
1271     o corrected wrong layer index in external_forcing_t
1272     o replaced the_main_loop/forward_step by the_main_loop
1273     o removed forceoutput from write_state
1274       (replaced criteria for initial/final state)
1275     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1276    
1277    checkpoint37
1278     o mdsio.F routine split and packaged in pkg/mdsio
1279       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1280        used unless genmake -disable=mdsio)
1281     o allow a more precise surface-geopotential gradient for the atmosphere
1282       taking into account the change in space of Alpha (=1/rho) at the surface.
1283     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1284       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1285     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1286       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1287       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1288     o Time-Average diagnostics defined as a pseudo package "timeave".
1289     o pickup files : old pickup (before c35) did not work with new code (c35
1290       and after) unless activating 2 commented lines in initialise-varia.
1291     o Non-Hydrostatic pickup file Pb fixed.
1292     o bug with Rigid-lid version (since c35) fixed.  
1293    
1294    checkpoint36
1295     o implement Crank-Nickelson barotropic time-stepping
1296     o recover Time-Average diagnostics
1297     o fix Pb in checkpoint (PR#19)
1298     o AIM become a standard package ; clean unused CPP_kees
1299    
1300    checkpoint35
1301     o subtantial rewrite of dynamics.f
1302     o allows staggered time-stepping
1303     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1304     o added bottom drag (linear + quadratic)
1305    
1306    checkpoint34
1307     o Modified exchange routines for correct reverse simulation.
1308     o Added verification output to comply with bug fix in impldiff.F
1309       as of c33 (exp2, natl_box).
1310     o Corrected store directives in dynamics.F
1311     o Corrected array boundaries in impldiff.F
1312     o Corrected array dimensions in gmredi.
1313       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1314     o Added routine GLOBAL_SUM_INT to global_sum.F
1315     o Added mdsio_gl.F for ECCO purposes.
1316    
1317    checkpoint33
1318     o Fixed bug in lower BC in impldiff.F
1319     o Fixed confusion about units of forcing arrays in FFIELDS.h
1320       namely Fu,Fv,Qnet,Qsw,EmPmR:
1321       - Removed verification/natl_box/code/external_fields_scale.F
1322         (did not differ from that in model/src)
1323       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1324         (see FFIELDS.h for description)
1325       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1326         kpp_calc.F and kpp_transport_t.F
1327       - Removed model/src/external_fields_scale.F and calls to it
1328       - verification/natl_box uses flux data with "atmospheric" sign so
1329         a special version of external_fields_load.F is used to
1330         change the data as it's read in. This way, the arrays
1331         have the right units and signs at all times tha a user could
1332         possibly use them.
1333     o Corrected genmake to delete a temporary file during configuration
1334    
1335    checkpoint32
1336     o Scaling of forcing fields moved from external_forcing.F to
1337       external_fields_scale.F, called directly after loading fields.
1338     o Surface relaxation terms added to surface tendency fields in
1339       extra subroutine.
1340     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1341       fields.
1342     o Changes in GMRedi to comply with packaging structure.
1343     o Modifications and bug fixes in KPP package.
1344     o Verification experiment for KPP added (verification/nat_box/)
1345    
1346    checkpoint31
1347     o Packages interface brought in line with defined standard
1348       -> new routines packages_...F
1349       -> changes in initialise_fixed.F, initialise_varia.F
1350       -> enables initialisation interface for ECCO package
1351     o Rescaling of external forcing fields immediately after read
1352       (removed from external_forcing.F)
1353       -> new: surface_fields_scale.F
1354       -> affects ini_foorcing.F, external_fields_load.F
1355     o Computation of surface tendencies before tendency updates.
1356       -> new: external_forcing_surf.F
1357     o Change of variable names useGMRedi, useKPP, useECCO
1358     o Further changes in dynamics.F, impldiff.F for TAMC
1359     o Tested for experiments 0, 2, 4.
1360       - not yet tested for GMRedi.
1361       - not yet tested for KPP.
1362    
1363    checkpoint30
1364     o Updates for OBCs
1365     o New experiment for test OBCs (internal_wave)
1366     o New output.txt in verification/exp4/results/
1367     o Updates for KPP: calculation of viscosity corrected, new variables
1368       kpp_dumpFreq and kpp_taveFreq
1369     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1370       and entry for T90 in genmake
1371    
1372    checkpoint29
1373     o packaged KPP and GM/Redi
1374    
1375    checkpoint28
1376     o Corrected initialization of hFacMin for difference vertical coordinates
1377     o Modified calculation of partial cell thickness to more robust algorithm
1378     o config_summary.F: replaced write_1D_... by write_0D_...
1379       read_write.F: added subroutines write_0D_...
1380     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1381       included some initialisations required for TAMC.
1382     o routine calc_isoslopes: modified sqrt computation to make it
1383       differentiable for zero argument.
1384     o routines dynamics, impldiff:
1385       included store directives and tape key computations required for TAMC.
1386     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1387    
1388    checkpoint27
1389     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1390       formulation works properly with variable resolution.
1391     o restructured the calling tree between the_model_main() and dynamics()
1392     o split initialise() into initialise_fixed() and initialise_varia()
1393     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1394       in new routine ini_psurf()
1395    
1396    checkpoint26
1397     o moved some #ifdef in optional routines to encompass everything
1398       except the argument declarations. This was using up some memory.
1399     o fixed macros like _ADT to work with both versions of Linux cpp
1400     o cleaned up some unused and uninitialized variables
1401       (helps when debugging with strict compile options)
1402     o split up CPP_EEOPTIONS.h into options and macros
1403       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1404     o patch for 2 processor JAM mode
1405    
1406    checkpoint25
1407     o updates for OBCs and NH
1408     o dramatically reduced memory usage
1409     o added "JAM" routines for use on Artic network
1410     o parameterization of convection by implicit vertical diffusion
1411     o added a diagnostic of convective index
1412     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1413       (this is was partly for OBCs and NH but also in anticipation of
1414        an explicit free-surface option)
1415     o initial state input files for U and V
1416    
1417    checkpoint24
1418     o Removed some spurious "REAL"s
1419     o Updated KPP to latest version from JPL
1420     o Added a COS(latitude) in horizontal viscosity
1421    
1422    checkpoint23
1423     o Added del^4 diffusion for salt and temperature
1424     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1425    
1426    checkpoint22
1427     o Made many small changes: implicit none, format(i5), etc...
1428     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1429    
1430    checkpoint21
1431     o Introduced new I/O package that supports direct-access records (mdsio.F)
1432     o Split-up mid-level I/O routines
1433     o Updated input data for experiments 0,1,2,4 and 5
1434     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1435    
1436    checkpoint20
1437     o Tidied up open-boundaries some more
1438     o Added non-hydrostatic code
1439     o Fixed some input data
1440     o Modified MPI start-up to work in "coupled" context.
1441    
1442    checkpoint19
1443     o Tidied up directory structure for verification experiments.
1444     o Added new code for open boundaries.
1445     o Corrected advective terms near boundaries.
1446     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1447     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1448     o Split default parameters out of ini_parms.F into set_defaults.F.
1449    
1450    checkpoint18
1451     o Further changes for optional code generation with
1452       CPP - ugh!
1453    
1454    checkpoint17
1455     o Beginning to incorporating modularity
1456       for supporting atmos. and ocean configs.
1457     o Small changes for TAMC complinace
1458     o New ultra simple test case. Barotropic box
1459       configuration "exp0".
1460    
1461    checkpoint16
1462     o Minor changes to exchange routines to support
1463       accumulation in reverse mode. Adjoint of an
1464       assignment is an addition.
1465     o Changes to support compilation by TAMC (LR(1)
1466       syntax) and by g77 under Linux ( 72 character
1467       limit ).
1468    
1469    checkpoint15
1470     Rewrote exchange routines to allow
1471     o General tile <-> tile connectivity.
1472     o TAMC reverse mode flag ( is this really needed? )
1473     o Variable width overlap and exchange region widths.
1474     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1475       shmput/shmget, VIA, SYSV shmem and every other cool
1476       communication method.
1477    
1478    checkpoint14
1479     Consistent isomorphism chages made. These allow dynamical core
1480     to support both pressure and meters as a vertical coordinate.
1481    
1482    checkpoint13
1483     Release which corrects global_max problem and a couple
1484     of KGM time-averaging diagnostic errors. Also contains
1485     a double-gyre experiment setup as well as the baseline
1486     4 degree global template. The double gyre template is
1487     organised to allow it to be applied automatically to
1488     the baseline configuration.
1489    
1490    branch-point-rdot
1491     A few tidy-ups have been made bt the real point of this
1492     check-point (excuse the pun) is to allow a branch to be
1493     made for the purposes of adding the rDot alterations.
1494     I don't want to commit the rDot to the main-trunk until
1495     we've actually tested it...
1496    
1497    checkpoint12
1498     Tidy up and added generic genmake script (formerly
1499     configure script).
1500     Released to testers.
1501    
1502    checkpoint11
1503     Re-arranged initialise() and introduced ini_vertical_grid()
1504     and ini_masks_etc().
1505    
1506    checkpoint10
1507     Introduced the configure script.
1508     Separated out the diags package.
1509     Added template for writing time-averages of tile/intermediate quantities.
1510     Updated SIZE.h in exp2 and made the data big-endian.
1511    
1512    checkpoint9
1513     MPI fix. Filename changes (meta/data). salbin*y stuff.
1514     General tidy-up.
1515     SST.bin SSS.bin added to verification/exp2
1516    
1517    checkpoint8
1518     Inludes time-dependant forcing and time-averaging.
1519     Works at 4x4 and 2.8125x2.8125 global
1520    
1521    checkpoint7-4degree-ref
1522     Branch from checkpoint7. Released for application to
1523     global modeling and general modeling - process studies, regional
1524     model etc..
1525     Configured for verification/exp2 - 4 degree global, two process.
1526    
1527    checkpoint7
1528     Created by cnh
1529     Simple 4 degree global simulation
1530     configuration.
1531     Includes climatological wind,
1532     hydrography, bathymetry etc
1533     Does not include Heat Flux and E-P
1534    
1535    checkpoint6
1536     Created by cnh
1537     merged checkpoint5 with CD and
1538     spherical polar code.
1539     Still some problems with GM Redi
1540     abd full topography.
1541    
1542    checkpoint5
1543     Created by AJA
1544     contains updates to GM Redi
1545     and reordered timestepping loop
1546     for Implicit Diffusion.
1547    
1548    checkpoint4
1549     Created by cnh
1550     Contains memory saving macros ( _rdxc etc..) for when
1551     grid variations are limited.
1552     Contains polynomial coeffs for EOS and knudsen program
1553     for generation.
1554    
1555  checkpoint3  checkpoint3
1556   Created by cnh   Created by cnh
1557   Added extra flags for runtime options   Added extra flags for runtime options
# Line 20  checkpoint1 Line 1570  checkpoint1
1570   Restructured kloop in dynamics.F   Restructured kloop in dynamics.F
1571   Added non-linear EOS   Added non-linear EOS
1572    
1573  baseline - Original checked in code  baseline
1574     Original checked in code
1575    

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