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revision 1.121 by heimbach, Tue Jan 21 19:44:45 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
774    Modifications in treatment of initial flux forcing controls
775    to avoid extra storing of flux fields.
776    
777    checkpoint48c_pre
778    o Added tidal_basin_2d experiment (currently 1D!)
779    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
780    
781    checkpoint48b_post
782    o r* coordinate added in #ifdef NONLIN_FRSURF block.
783     (modification to pressure gradient not yet implemented)
784    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
785      (for U & V) that are used for vertical advection of momentum.
786    
787    checkpoint48a_post
788    o In preparation for r*, use temp. array to compute vertical transport
789       in flux-form momentum pkg. => change results of few test-exp.
790      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
791                        lab_sea, natl_box & plume_on_slope
792    
793    checkpoint48
794    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
795    
796  checkpoint47j_post  checkpoint47j_post
797  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
798  o moved adexch from forward_step to addummy_in_stepping  o moved adexch from forward_step to addummy_in_stepping

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