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revision 1.128 by heimbach, Thu Feb 6 22:43:09 2003 UTC revision 1.291 by dimitri, Wed May 12 18:45:44 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint53a_post
7    o restore TAMC compatiility for exf_constants.h
8      (no usage of _d in .h)
9    o Additional storing in KPP in an attempt to fix
10      TAMC problem with adjoint of KPP code.
11      (no success...)
12      Identical code works fine with TAF.
13    o Fixed verification/natl_box_adjoint experiments.
14      Initial conditions for Experiments 4 and 5 are now
15      set to "SEAICE_initialHEFF=0", which is more reasonable,
16      and hence gives results closer to that of Experiment 2.
17      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
18    
19    checkpoint53
20    o stable checkpoint with up to date adjoint
21      TLM tests only run for 1st grdchk at the moment. Its unclear if
22      this is a code problem or a problem with resetting code for g_
23      variables that is being autogenerated wrong.
24      Otherwise:
25       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
26       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
27         are both still in chaos following their security messes.
28    
29    checkpoint52n_post
30    o various build (mostly genmake2) changes including:
31      - ability to build/run more easily within Cygwin and MacOS X
32      - more complicated Makefiles with a stronger dependence on Gnu Make
33    o pkg/seaice modifications
34      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
35        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
36        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
37      - changed proxy for geostrophic velocity and updated
38        verification/lab_sea/results/* accordingly
39      - removed ADI dynamic solver from pkg/seaice
40      - replaced all occurrences of 1/CSTICE or 1/CSUICE
41        they caused a segmentation fault under certain circumstances
42      - removed unused field WATR
43    o bug fix in exf-package:
44      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
45         now reflect that.
46    o small fixes in the cal-package:
47      - set reference date to first of January for the 'model'-calendar
48      - failing of cal_CheckDate in cal_FullDate now actually results in a
49        warning
50    o small modifications in exf-package to increase flexibility:
51      - change climtempfreeze from a constant to a runtime parameter that
52        is specified in data.exf_clim (default = -1.9)
53      - introduce runtime parameter windstressmax (default = 2.0) that is
54        specified in data.exf
55    o fix in pkg/thsice:
56      - update Evap (Tsf changes) to be consistent with Latent heat flux
57      - maintain snow precipitation unchanged (even if Tsf >=0).
58     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
59    
60    checkpoint52m_post
61    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
62      this does not change any of the results, because myIter=0 in swfrac always
63      lead to jwtype=2 (the default anyway), but the call makes little sense
64      as a default
65    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
66    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
67      atmospheric model (AIM) to use it ; add a "slab ocean" component.
68    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
69    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
70    o extending useSingleCpuIO option to work with new exch2 I/O format
71      - old-style, missing-tile I/O is still accessible by defining CPP
72        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
73    o monitor package can write to NetCDF files and/or STDOUT
74    o fix re-definition bug in MNC_GRID_INIT_ALL()
75    o doc/api_reference added
76      - a framework for building an API Reference Manual using all
77        the "protex" comments embedded in the code
78      - see pkg/generic_advdiff, pkg/mnc for examples
79    o MNC:
80      - make myThid the last argument for all subroutines
81      - new default for the grid files: NO halos
82      - add useMNC and other run-time flags
83      - separate per-file-group handling of the unlimited dimension
84      - early initialization of MNC w/ flags read at the eeboot stage
85        and lookup tables set in initialize_fixed
86      - write all MNC output to a freshly-created directory
87    o thermodynamics sea-ice (thsice) is now tested with testreport.
88    o test exp. advect_cs: use the standard cs32 grid ; update output.
89    o Added functionality to grdchk:
90      pick global i,j,k position (or nearest wet) where to perform check.
91    
92    checkpoint52l_post
93    o new land formulation:
94      a) use ground enthalpy as prognostic variable to ensure exact
95         energy conservation.
96      b) account for water temperature and for latent heat of freezing
97         in all processes (rain, run-off, ground storage)
98      c) compute surface and ground temperature implicitly.
99    o aim_v23 modification for new land model:
100      a) Treat separately land / ocean / sea-ice surface fluxes
101         to allow implicit computation of land & sea-ice surface temp.
102      b) add snow precipitation.
103    checkpoint52l_pre
104    
105    o fix problem (when 1 tile is empty) in min/max monitor.
106    o fix bug in timeAve (u,vZetatave in common block)
107    o no restoring terms under ice for pkg/seaice
108    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
109    o bug fix for pkg/seaice pickups
110    o change MNC call locations and add coordinate attributes
111    o mask vorticity at the corner ; affects global_ocean.cs output
112    o fix ini_curvilinear_grid ; test CS experiments with mpi
113    o aim.5l_cs: modify sea-ice fraction input file ; update output
114    o exf: Adding simple range check routine for exf fields after read
115    
116    checkpoint52k_post
117    o removed top-level directory "diags"
118      - we migrated these functions to pkg/timeave a long time ago
119    o fixed bug introduced in pkg/monitor
120    o accuracy ctrlprec = 32 insuffient for gradient checks using
121      averaged fields (I/O via cost_averages)
122      -> use ctrl.h in active_file*.F to control I/O precision.
123    o paramter list of CALL ADTHE_MAIN_LOOP
124    o added initial do_the_model_io to ecco
125    o set all ...Freq to zero after cost_final
126      taveFreq, dumpFreq, pChkptFreq
127    o MAIN and ECCO differentiability restored
128    
129    checkpoint52j_post
130    o fix nchklev in tamc.h for global_ocean...
131    o Bringing flow and store directives up-to-date
132    o Really weird thing!
133      call do_the_model_io from the_main_loop with parameters
134      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
135      TAF places a faulty re-call of initialise_varia
136      after cost_final call which should not be there!
137    checkpoint52j_pre
138    
139    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
140      error messages
141    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
142    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
143      debug output
144    o modfied mdsio_writefield.F to handle non-global files under exch2
145    o update AIM Cubed-Sphere exp (aim.5l_cs):
146      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
147    o update AIM Equatorial Channel exp:
148      use standard aim_v23 pkg and change the SST fields to be more realistic.
149    o globalFile now works with exch2
150    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
151      mon_vort3.F to make exch2 friendly with >1 tile per cube face
152    o limit timeave output for hi-res integrations
153    
154    checkpoint52i_post
155    o removed CPP_EEOPTIONS.h from verification/*/code
156    o updated the tiling for global_ocean_pressure
157    checkpoint52i_pre
158    
159    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
160      the old pkg/aim).
161    
162    checkpoint52h_pre
163    o shortened offending lines in exch2_send_rx?.template
164    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
165    o genmake2: add build & execute test for NetCDF code
166    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
167      old grid files, moved CPP_EEMACROS.h to pkg/exch2
168    o added useSingleCPUIO flag to monitor.F and mon_out.F
169    o added temporary hack for sea-ice dynamics on the cube:
170      metric terms are ignored and it is assumed that
171      there is no sea-ice on cube faces 1, 2, 4, and 5.
172    
173    checkpoint52f_post
174    o added exch2 cube routines to pkg/exch2
175    o modified hs94.cs-32x32x5 to use it
176    o added new grid files to hs94.cs-32x32x5
177    checkpoint52f_pre
178    
179    checkpoint52e_post
180    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
181      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
182    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
183      to work with implicit vertical advection and AB ;
184    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
185    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
186     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
187    checkpoint52e_pre
188    
189    o fix bug in impldiff when Nr=1 or Nr=2.
190    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
191    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
192    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
193      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
194    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
195    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
196    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
197    
198    checkpoint52d_post
199    o re-tiled many expts to allow comparison in multi-processor mode
200      - updated output accordingly
201      - changed hs94.128x64x5 to use intial T from file rather than use the
202        random number generator
203    o add infrastructure in model routines for fizhi and gridalt packages
204    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
205    o changes to permit hi-res, cubed-sphere, configuration
206      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
207      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
208      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
209        of surface winds for the cube
210      (A verification experiment, based on global_ocean.cs32x15, but with
211       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
212       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
213       complete with example surface forcing files and matlab scripts to look
214       at the output and compare it with that of global_ocean.cs32x15.)
215    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
216       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
217       to conform to the common rule.
218    o check-in the first version of the coupler + interfaces for multi-components
219       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
220       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
221       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
222       - ocean and atmos. share the same horizontal grid (no interpolation).
223       - exchanges between component and coupler is done in forward_step
224    o new verification experiment, cpl_aim+ocn:
225       coupled ocean - AIM atmosphere on cs32 grid.
226    
227    checkpoint52d_pre
228    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
229    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
230    
231    checkpoint52c_post
232    o Fixing OPTIONS files for use of exf:
233      - ALLOW_ECCO not needed
234      - ECCO_CPPOPTIONS.h should not be included from
235        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
236        as has been the case in the past
237      - All cal/exf related options are currently set in
238        single header file. Should remain so until we
239        agree on a consistent new policy.
240    o Removed all CPP options for cal package.
241      cal has no more CPP options.
242    o modified STOREs in GAD_ADVECTION
243    o corrected key comp. for passkey
244    
245    checkpoint52b_post
246    o new version: "thsice" of thermodynamic sea-ice pkg:
247     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
248     - modify fluxes but do not change theta directly;
249     - light cleaning of bulk_force pkg (still needed with thsice).
250     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
251       + output_thsice.txt to test thsice & bulk_force pkgs.
252    o put back grid & coriolis monitor output.
253    checkpoint52b_pre
254    
255    o call "do_the_model_io" at the beginning (=> dump initial state)
256    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
257    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
258      (need info on NUMBER_OF_PTRACERS)
259    o missing PTRACERS headers in some routines
260    o default tamc.h in pkg/autodiff supposed to crash
261      to ensure proper customization
262    
263    checkpoint52a_post
264    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
265      - moved surfaceTendencyTice from pkg/seaice to main code
266      - subroutine FREEZE_SURFACE now limits only surface temperature
267        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
268        => new output.txt for global_ocean.cs32x15 & global_with_exf
269      - keep the old version of FREEZE for backward compatibility;
270        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
271      - corresponding modifs for TAF directives
272    o added surface flux output variables to TIMEAVE_STATVARS
273    o time-averaged output for pkg/ptracers
274    o fix problem with ECCO-related divided adjoint
275      snapshot file was missing some ad-variables,
276      but no warning issued by TAF
277    
278    checkpoint52a_pre
279    o some bug fixes for #undef REAL4_IS_SLOW
280    
281    checkpoint52 = ecco_c52_e35
282    o after testing adjoints of checkpoint51u_post
283    
284    checkpoint51u_post
285    o this is the post-merge tag of the ecco-branch
286      (needs another clean checkout and re-testing)
287    o various natl_box_adjoint configs and results
288      but no input fields
289    o obcs adjoint not yet merged!
290    o adding ECCO global 1x1 and 2x2 degree configs
291    o updated/extended some store directives for seaice
292    o pkg/ecco now containes ecco-specific part of cost function
293    o top level routines the_main_loop, forward_step
294      supersede those in model/src/
295      previous input data.cost now in data.ecco
296      (new namelist ecco_cost_nml)
297    o in ctrl/ cleaned some cross-dependencies and updated CPP options
298    
299    checkpoint51t_post
300    o this is the pre-merge tag of the ecco-branch
301    
302    checkpoint51s_post
303    o cleanup: removed various obsolete #define-s
304    o pkg/grdchk
305      - renamed 'ph-grd 3' to 'grad-res'
306      - merged from ecco-branch
307        (remaining bug fixes for obcs gradient checks)
308      - additional high-precision output for testreport
309        (grep for 'precision_grdchk_result')
310    
311    checkpoint51r_post
312    o cleaned up or removed CPP_OPTIONS.h files
313    o updated results for some of the tests to reflect the new
314      optfiles (-ieee: -O0 instead of -O3)
315    
316    checkpoint51q_post
317    o cd_code:
318      - moved cd_scheme.F -> cd_code_scheme.F
319      - separate read_checkpoint from cd_code_ini_vars.F
320      - separated cd_code part from write_checkpoint
321      - updated AD_SOURCE, generated .flow
322      - added CD_CODE_VARS.h to the_main_loop
323      - Moving cd_code specific store dir.s to pkg/cd_code
324    o ctrl package totally restructured
325      - pack/unpack now optional and decoupled from
326        xx_/adxx_ I/O
327      - ctrl_pack/unpack cleaned
328        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
329      - confined inclusion of AD_CONFIG.h to where necessary.
330    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
331    
332    checkpoint51p_post
333    o create initial cd_code package
334      - WARNING: the initialization of fields within packages
335        is broken because INI_FIELDS (where READ_CHECKPOINT is
336        called) is called *before* PACKAGES_INIT_VARIABLES.
337        This seems to be backwards since
338        1) its important to initially zero the entire field including
339           the "halo" region
340        2) zeroing needs to be done *before* reading pickup info
341           and the pickup call might or might not happen in any
342           particular run
343      - this needs an overhaul for R2
344    o cleanup verification/*/code/GMREDI_OPTIONS.h
345    o cleanup testreport
346    
347    checkpoint51o_post
348    o bringing AD-related verif's up to date with genmake2
349      - carbon/
350      - global_ocean.90x40x15/
351      - hs.94.1x64x5/
352      - (front_relax/ )
353    o (more) consistent directory structure for AD-related verif.'s
354    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
355    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
356    o bug fix in find_alpha.F for MDJWF:
357      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
358        change rho -> rho-rhoConst
359      - replace call find_rho to find_rhonum
360    o initialisation of rFlx extended to full array (required by TAF)
361      and shifted to thermodynamics
362    o removed PTRACERS.h in ptracers routine
363    o added surfacetendencyPtr to S/R parameter list pracers_forcing
364    o Correcting initialisations for fVerU, fVerV.
365    o helping TAF to recognize dependency on kUp for
366      fVerU, fVerV
367    o Replacing delZ by delR in pkg/ctrl/
368    checkpoint51o_pre
369    
370    o undid all of cp51 pending some cleanups and discussion
371    o added the [#include "AD_CONFIG.h"] statement to all files that need
372       it for adjoint/tl #defines
373     o re-worked the build logic in genmake2 to support AD_CONFIG.h
374     o removed tools/genmake since it no longer works
375    
376    checkpoint51n_post
377    o modifications to make FREEZE flux visible to pkg/kpp
378      - moved surfaceTendencyTice from pkg/seaice to main code
379      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
380      - subroutine FREEZE now limits only surface temperature
381        (this means new output.txt for global_ocean.90x40x15,
382         global_ocean.cs32x15, and global_with_exf)
383    o added surface flux output variables to TIMEAVE_STATVARS
384    
385    checkpoint51n_pre
386    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
387    o added [#include "AD_CONFIG.h"] to all files that use the following
388      defines:
389      - ALLOW_ADJOINT_RUN
390      - ALLOW_TANGENTLINEAR_RUN
391      - ALLOW_ECCO_OPTIMIZATION
392    
393    checkpoint51m_post
394    o incorporating changes to get TAMC/TAF working in genmake2
395      - added new TAMC/TAF targets to the Makefile
396      - various cleanups related to package handling
397      - these changes should have no impact on the forward model
398    
399    checkpoint51l_post
400    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
401     - faster algorithm for cal_addtime.F
402     - higher precision arithmetic, where needed
403     - pkg/exf *startdate variables changed from calendar date to
404       model integration time
405    
406    checkpoint51l_pre
407    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
408    o enable to apply restoring on S & T only in a latitude band.
409    o update output (external_forcing_surf modif. change truncation errors)
410       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
411    
412    checkpoint51k_post
413    o change default to: useNHMTerms=.FALSE.
414     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
415       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
416     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
417        exp1, ideal_2D_oce
418     - change data file of oceanic exp (leave the results unchanged for now)
419       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
420    o set gravitySign automatically according to the vertical coordinate used
421      (and change sign: back to "logical" value: +1 when R increases downward)
422    o added an include barrier to the default CPP_OPTIONS.h and
423      removed the #include "PACKAGES_CONFIG.h" from it
424    o fix a bug in mom_fluxform (from chk51j_post)
425    
426    checkpoint51j_post
427    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
428    o adjusted some flow directives (dynamics, thermodynamics)
429    o added cubed-sphere case to test cost function
430    o heckpoint_lev?_directives.h now include
431      pkg-specific directives, whenever those are enabled.
432    o Moving pkg-specific flow directives to corresponding pkg
433      Moving pkg-specific differentiation list to corresponding pkg
434      Moving pkg-specific checkpoint-lev storing to corresponding pkg
435      ---> conventions are
436           - pkg_ad.flow
437           - pkg_ad_diff.list
438           - pkg_ad_check_lev?_dir.h
439    
440    checkpoint51i_post
441    o merge of the branch-genmake2
442      - knowingly breaks the older genmake
443      - automatic generation of all ALLOW_${PKG_NAME} defines
444      - new testreport supersedes older testscript
445    o large number of package inclusion and header cleanups
446    checkpoint51i_pre
447    
448    o new output for adjoin of global ocean vector invariant
449    o fix for checkpoint of thermodynamic seaice and bulk_force
450    o Steph gchem various cleanups
451    
452    checkpoint 51h_pre
453    o fixed some single quotes
454    o modify gchem pkg to be more versatile
455    o modifications to clean up dic pkg
456    o add pkg/cfc
457    
458    checkpoint51g_post
459    o provide links for ARPACK and ADM*TLM
460    o start removing verification/vero/
461    o update AD-related stuff
462      (in particular some IF-statements in model/src/ routines)
463    o adding to verification/global_ocean.90x40x15/ adjoint of
464      vector invariant setup
465    
466    checkpoint51f_post
467    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
468    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
469      of tracer Green's fucntions for ocean inversion project.
470    
471    checkpoint51f_pre
472    o Added on-the-fly spatial interpolation capability
473        "USE_EXF_INTERPOLATION" to pkg/exf.
474      - This is a temporary Cartesian-grid hack until
475        the super-duper ESMF coupler becomes available.
476      - See verification/global_with_exf/README for usage example.
477      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
478        flags and modified pkg/seaice accordingly.
479    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
480        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
481        non-local transport term.
482    
483    checkpoint51e_post
484    o pkg/mom_vecinv:
485      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
486      - add time-ave diagnostic of vorticity advection.
487    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
488    o atmospheric geopotential: - include water vapor effect;
489                                - use p^kappa in p* scaling.
490    o land pkg: read initial state from files.
491    o AIM : add stratospheric drag in the upper level
492    
493    checkpoint51d_post
494    o change function ILNBLNK (=> last non-blank char.) to return zero
495      (instead of the string length) when the string. char is empty
496    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
497    o modif's to restore TAMC compatibility
498      - avoid "_d" constructs in PARAMETER declarations
499      - avoid interrupting lines by comment lines
500    o Use cluster local disks for purely local I/O
501      vs. globally visible disks needed for ctrl stuff
502      (merged from ecco-branch)
503      - new active_file_loc... and mdsio_..._loc routines
504      - affected packages: autodiff, ctrl, grdchk, mdsio
505    
506    checkpoint51c_post
507    o introducing integer flag debugLevel
508      - debLevZero: suppress all output
509      - debLevA: standard
510      - debLevB: equivalent to current debugMode=.TRUE.
511    o introducing pathname variable mdsioLocalDir for mdsio
512      that can be specified at runtime
513      (relevant for cluster I/O to local disk)
514    `
515    >>>checkpoint51b_post
516    adjoint of ptracers
517    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
518    o extended state in checkpoint_lev?, etc.
519    o alternative ctrl/cost with tr1 or ptracer
520    o new comlev1_bibj_ptracers
521    o new ptracers.flow
522    o made ptracers_forcing same as external_forcing_s
523    o added verification for adjoint with ptracers
524      - adm. grdchk fail so far
525      - tlm. grdchk OK
526      - checked tapelev/comlev recomputations: OK
527    <<<checkpoint51b_pre
528    
529    checkpoint51a_post
530    o added code for biogeochemistry package
531      - new pkgs: dic, gchem
532      - new subroutine in ptracers
533    o modify code for biogeo packages
534      - in model/src and pkg/ptracers
535    
536    checkpoint51
537    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
538      - autodiff, ctrl, exf, grdchk, seaice
539      kept separate packages
540      - cost, ecco, obcs
541    o updating verification/internal_wave, verification/lab_sea
542      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
543    
544    checkpoint50i_post
545    o Preparing next differentiable checkpoint and sync
546      of MAIN vs. ecco-branch
547      - 1st step: this one is differentiable
548      - 2nd step: next(! not this) checkpoint will have updated packages
549                  from ecco-branch)
550    
551    checkpoint50h_post
552    o new package "land": provide surface BC for AIM.
553    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
554    o AIM: use true log-P extrapolation for near surface temp (= as in
555        F.Molteni paper) ; update aim.5l_cs output.
556    o New variable in PARM03 for more flexible pickups
557    o somewhat cleaned package initialisation sequence for
558      ctrl/ cost/ ecco/ in packages_... routines
559    
560    checkpoint50g_post
561    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
562      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
563      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
564        made the default because of faster convergence than ADI
565    
566    checkpoint50f_post
567    o exf totally restructured
568      - replaced all exf_set_ routines by one generic exf_set_gen.F
569        and made sure it's still differentiable
570      - split exf_getffields.F into new exf_bulkformulae.F
571      - exf_inscal_/exf_outscal_ suffixes consistent with field names
572      - updated adjoint/makefile and relevant verif. accordingly
573    
574    checkpoint50f_pre
575     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
576          + change Evap over land. (update aim.5l_cs output)
577     o added missing .cvsignores and made uniform across expts
578     o changed configuration of tidal_basin_2d expt
579     o added pkg/debug functions for tracing code in fatal crashes
580     o tidied pkg/monitor to use MONITOR_OPTIONS.h
581     o new fn in pkg/monitor to stop model if solution grows too big
582     o removed lots of single quotes from comments
583    
584    checkpoint50e_post
585    o make KPP work with PTRACERS
586     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
587       nearly a copy of kpp_transport_s
588     - there is no analogue to SurfaceTendencyS, so I have to use
589       gPtr(of the surface layer) instead
590    o add a new platform SunFire+mpi (SunFire 15000) to genmake
591    checkpoint50e_pre
592    
593    checkpoint50d_post
594    o change kpp output from multiple-record state files to single-record state
595      files analogous to write_state.F
596    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
597      analogous to the cg2d-related output.
598    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
599      so that writing to internal file fn (with length 512) fails.
600    checkpoint50d_pre
601    
602    checkpoint50c_post
603    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
604    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
605    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
606    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
607    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
608    
609    checkpoint50c_pre
610    Merging from release1_p13:
611    o bug fix for pkg/seaice dynamic solver
612    o Added SEAICE_initialHEFF to pkg/seaice
613    
614    checkpoint50b_post
615    o store u*,v* in gU,V instead of in guNm1,gvNm1
616    o in order to put the momForcing out of the Adams-Bashforth:
617      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
618      to timestep.F
619    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
620    o re-generate output for highly sensitive test-exp:
621       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
622    
623    checkpoint50b_pre
624    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
625    o corrected CPP option mismatch in exf_Bulk... functions for case
626      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
627    
628    checkpoint50a_post
629    o Bug fix for merging between c50 and KPP.
630      ikey was passed from thermodynamics to kpp_calc via
631      common block rather than being recomputed in kpp_calc,
632      in contradiction with new key itdkey.
633      New key ikppkey created, and tamc.h headers updated.
634    
635    checkpoint50
636    - 2nd step of merge with ecco-branch:
637      merge changes in ecco-branch back into main trunk
638    - bug fix in find_alpha
639    - more storing in gmredi_calc_tensor.F, kpp_routines.F
640    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
641    - merged some sliced AD support routines
642    
643    checkpoint49
644    merged from ecco-branch:
645    o exf:
646      - Enable initialisation of forcing fields to constant
647        (runtime) values.
648      - in exf_getffields.F
649        Reduce i-/j-loop to interior domain, discarding overlaps.
650        That also fixes wrong TAF-key computations for key_1, key_2
651        with bulf formulae.
652      - exf_init.F modify #ifdef for exf_init_evap
653      - exf_getffieldrec.F, ctrl_getrec.F
654        The following INT-usages are not safe:
655          fldsecs  = int(fldsecs/fldperiod)*fldperiod
656          fldcount = int(fldsecs/fldperiod) + 1
657        and were modified.
658    o autodiff: checkpoint_lev...
659      - updated storing for bulk formulae (some arrays were missing)
660      - added state for seaice package
661      - synchronized with main branch
662    o DIVA:
663      Modif.s in
664      - the_main_loop.F
665      - the_model_main.F
666      and added cost_final_restore.F cost_final_store.F
667      o With these changes, it is possible to fully separate
668        the first forward run to compute the cost function (mdthe_main_loop)
669        and adjoint runs over individual DIVA intervals (adthe_main_loop)
670        into separate model executions.
671        This enables better tuning of DIVA to given queue sizes.
672      o Loss of cost function value in consecutive DIVA runs is
673        fixed by storing to 'costfinal' file.
674      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
675        beginning/end of adjoint integration is accounted for.
676      The current changes apply to TAF-1.4.26.
677      TAF has one remaining bug, requiring one manual change
678      (see MITgcm manual).
679    o cal: synchronized between MAIN and ecco-branch
680    
681    checkpoint48i_post
682    o Changes to restore differentiability of code w.r.t. previous tag
683      (mostly adding new routines to make list and replacing
684      pressure by totPhiHyd).
685    o Updated and merged grdchk package
686      - has both ADM and TLM checks
687      - works for single- and multi-proc.
688      - output cleaned
689      - worked successfully for parallel DIVA
690    o genmake:
691      - Adding -platform=SP4
692      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
693    o Modif. for DIVA:
694      ctrl_unpack should not be called in intermediate DIVA interval.
695      (similar thing would apply for active files such as
696      tbar, sbar, psbar, which should not be reinitialised;
697      only relevant for ecco-branch)
698    
699    checkpoint48h_post
700    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
701    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
702    o Added SEAICE_initialHEFF to pkg/seaice
703    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
704    
705    checkpoint48g_post
706    --- EOS:
707    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
708      store total Potential in totPhyHyd for diagnostics & EOS.
709    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
710    --- Pressure/geopotential gradient:
711    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
712    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
713      ( changes results of global_ocean_pressure )
714    o NLFS + z-coord.: add eta*Rho' contribution.
715    o accurate phiHyd when using interface-W at the middle between 2 centers
716     ( changes results of ideal_2D_oce )
717    o includes r* 2nd term in potential gradient.
718    
719    checkpoint48f_post
720    Merging from release1_p12:
721    o Modifications for using pkg/exf with pkg/seaice
722      - improved description of the various forcing configurations
723      - added basic radiation bulk formulae to pkg/exf
724      - units/sign fix for evap computation in exf_getffields.F
725      - updated verification/global_with_exf/results/output.txt
726    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
727      (SBO) core products, including oceanic mass, center-of-mass,
728      angular, and bottom pressure (see pkg/sbo/README.sbo).
729    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
730      to avoid negative values in shallow regions.
731      - updated verification/natl_box/results/output.txt
732      - updated verification/lab_sea/results/output.txt
733    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
734    o Added useSingleCpuIO option (see PARAMS.h).
735    o Updated useSingleCpuIO option in mdsio_writefield.F to
736      work with multi-field files, e.g., for single-file pickup.
737    o pkg/seaice:
738      - bug fix in growth.F: QNET for no shortwave case
739      - added HeffFile for specifying initial sea-ice thickness
740      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
741    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
742      kpp_transport_t.F, forward_step.F, and the_main_loop.F
743    o pkg/seaice:
744      - adjoint-friendly modifications
745      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
746    
747    checkpoint48e_post
748    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
749    o dynamics: change definition of computational domain & adapt mom_fluxform
750      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
751    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
752        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
753        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
754        global_ocean.90x40x15 global_with_exf global_ocean_pressure
755        inverted_barometer solid-body.cs-32x32x1
756      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
757    
758    checkpoint48d_post
759    o in preparation for r*:
760     a) use pre-computed gradient of hydrostatic potential:
761        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
762     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
763        => affects results of glob_oce_pressure (different truncation error)  
764      update output.txt of ideal_2D_oce & global_ocean_pressure
765    
766    checkpoint48d_pre
767    o in preparation for r*:
768      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
769      pass the 2 comp. of the grad. as arguments to momentum S/R.
770      but for the moment, only used if it does not change the results.
771    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
772    
773  checkpoint48c_post  checkpoint48c_post
774  Modifications in treatment of initial flux forcing controls  Modifications in treatment of initial flux forcing controls
775  to avoid extra storing of flux fields.  to avoid extra storing of flux fields.

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