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revision 1.7 by adcroft, Mon Jun 22 16:24:50 1998 UTC revision 1.247 by afe, Thu Jan 22 17:17:19 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
7      mon_vort3.F to make exch2 friendly with >1 tile per cube
8      face
9    
10    checkpoint52i_post
11    o removed CPP_EEOPTIONS.h from verification/*/code
12    o updated the tiling for global_ocean_pressure
13    checkpoint52i_pre
14    
15    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
16      the old pkg/aim).
17    
18    checkpoint52h_pre
19    o shortened offending lines in exch2_send_rx?.template
20    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
21    o genmake2: add build & execute test for NetCDF code
22    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
23      old grid files, moved CPP_EEMACROS.h to pkg/exch2
24    o added useSingleCPUIO flag to monitor.F and mon_out.F
25    o added temporary hack for sea-ice dynamics on the cube:
26      metric terms are ignored and it is assumed that
27      there is no sea-ice on cube faces 1, 2, 4, and 5.
28    
29    checkpoint52f_post
30    o added exch2 cube routines to pkg/exch2
31    o modified hs94.cs-32x32x5 to use it
32    o added new grid files to hs94.cs-32x32x5
33    checkpoint52f_pre
34    
35    checkpoint52e_post
36    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
37      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
38    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
39      to work with implicit vertical advection and AB ;
40    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
41    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
42     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
43    checkpoint52e_pre
44    
45    o fix bug in impldiff when Nr=1 or Nr=2.
46    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
47    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
48    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
49      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
50    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
51    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
52    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
53    
54    checkpoint52d_post
55    o re-tiled many expts to allow comparison in multi-processor mode
56      - updated output accordingly
57      - changed hs94.128x64x5 to use intial T from file rather than use the
58        random number generator
59    o add infrastructure in model routines for fizhi and gridalt packages
60    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
61    o changes to permit hi-res, cubed-sphere, configuration
62      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
63      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
64      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
65        of surface winds for the cube
66      (A verification experiment, based on global_ocean.cs32x15, but with
67       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
68       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
69       complete with example surface forcing files and matlab scripts to look
70       at the output and compare it with that of global_ocean.cs32x15.)
71    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
72       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
73       to conform to the common rule.
74    o check-in the first version of the coupler + interfaces for multi-components
75       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
76       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
77       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
78       - ocean and atmos. share the same horizontal grid (no interpolation).
79       - exchanges between component and coupler is done in forward_step
80    o new verification experiment, cpl_aim+ocn:
81       coupled ocean - AIM atmosphere on cs32 grid.
82    
83    checkpoint52d_pre
84    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
85    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
86    
87    checkpoint52c_post
88    o Fixing OPTIONS files for use of exf:
89      - ALLOW_ECCO not needed
90      - ECCO_CPPOPTIONS.h should not be included from
91        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
92        as has been the case in the past
93      - All cal/exf related options are currently set in
94        single header file. Should remain so until we
95        agree on a consistent new policy.
96    o Removed all CPP options for cal package.
97      cal has no more CPP options.
98    o modified STOREs in GAD_ADVECTION
99    o corrected key comp. for passkey
100    
101    checkpoint52b_post
102    o new version: "thsice" of thermodynamic sea-ice pkg:
103     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
104     - modify fluxes but do not change theta directly;
105     - light cleaning of bulk_force pkg (still needed with thsice).
106     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
107       + output_thsice.txt to test thsice & bulk_force pkgs.
108    o put back grid & coriolis monitor output.
109    checkpoint52b_pre
110    
111    o call "do_the_model_io" at the beginning (=> dump initial state)
112    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
113    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
114      (need info on NUMBER_OF_PTRACERS)
115    o missing PTRACERS headers in some routines
116    o default tamc.h in pkg/autodiff supposed to crash
117      to ensure proper customization
118    
119    checkpoint52a_post
120    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
121      - moved surfaceTendencyTice from pkg/seaice to main code
122      - subroutine FREEZE_SURFACE now limits only surface temperature
123        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
124        => new output.txt for global_ocean.cs32x15 & global_with_exf
125      - keep the old version of FREEZE for backward compatibility;
126        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
127      - corresponding modifs for TAF directives
128    o added surface flux output variables to TIMEAVE_STATVARS
129    o time-averaged output for pkg/ptracers
130    o fix problem with ECCO-related divided adjoint
131      snapshot file was missing some ad-variables,
132      but no warning issued by TAF
133    
134    checkpoint52a_pre
135    o some bug fixes for #undef REAL4_IS_SLOW
136    
137    checkpoint52 = ecco_c52_e35
138    o after testing adjoints of checkpoint51u_post
139    
140    checkpoint51u_post
141    o this is the post-merge tag of the ecco-branch
142      (needs another clean checkout and re-testing)
143    o various natl_box_adjoint configs and results
144      but no input fields
145    o obcs adjoint not yet merged!
146    o adding ECCO global 1x1 and 2x2 degree configs
147    o updated/extended some store directives for seaice
148    o pkg/ecco now containes ecco-specific part of cost function
149    o top level routines the_main_loop, forward_step
150      supersede those in model/src/
151      previous input data.cost now in data.ecco
152      (new namelist ecco_cost_nml)
153    o in ctrl/ cleaned some cross-dependencies and updated CPP options
154    
155    checkpoint51t_post
156    o this is the pre-merge tag of the ecco-branch
157    
158    checkpoint51s_post
159    o cleanup: removed various obsolete #define-s
160    o pkg/grdchk
161      - renamed 'ph-grd 3' to 'grad-res'
162      - merged from ecco-branch
163        (remaining bug fixes for obcs gradient checks)
164      - additional high-precision output for testreport
165        (grep for 'precision_grdchk_result')
166    
167    checkpoint51r_post
168    o cleaned up or removed CPP_OPTIONS.h files
169    o updated results for some of the tests to reflect the new
170      optfiles (-ieee: -O0 instead of -O3)
171    
172    checkpoint51q_post
173    o cd_code:
174      - moved cd_scheme.F -> cd_code_scheme.F
175      - separate read_checkpoint from cd_code_ini_vars.F
176      - separated cd_code part from write_checkpoint
177      - updated AD_SOURCE, generated .flow
178      - added CD_CODE_VARS.h to the_main_loop
179      - Moving cd_code specific store dir.s to pkg/cd_code
180    o ctrl package totally restructured
181      - pack/unpack now optional and decoupled from
182        xx_/adxx_ I/O
183      - ctrl_pack/unpack cleaned
184        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
185      - confined inclusion of AD_CONFIG.h to where necessary.
186    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
187    
188    checkpoint51p_post
189    o create initial cd_code package
190      - WARNING: the initialization of fields within packages
191        is broken because INI_FIELDS (where READ_CHECKPOINT is
192        called) is called *before* PACKAGES_INIT_VARIABLES.
193        This seems to be backwards since
194        1) its important to initially zero the entire field including
195           the "halo" region
196        2) zeroing needs to be done *before* reading pickup info
197           and the pickup call might or might not happen in any
198           particular run
199      - this needs an overhaul for R2
200    o cleanup verification/*/code/GMREDI_OPTIONS.h
201    o cleanup testreport
202    
203    checkpoint51o_post
204    o bringing AD-related verif's up to date with genmake2
205      - carbon/
206      - global_ocean.90x40x15/
207      - hs.94.1x64x5/
208      - (front_relax/ )
209    o (more) consistent directory structure for AD-related verif.'s
210    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
211    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
212    o bug fix in find_alpha.F for MDJWF:
213      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
214        change rho -> rho-rhoConst
215      - replace call find_rho to find_rhonum
216    o initialisation of rFlx extended to full array (required by TAF)
217      and shifted to thermodynamics
218    o removed PTRACERS.h in ptracers routine
219    o added surfacetendencyPtr to S/R parameter list pracers_forcing
220    o Correcting initialisations for fVerU, fVerV.
221    o helping TAF to recognize dependency on kUp for
222      fVerU, fVerV
223    o Replacing delZ by delR in pkg/ctrl/
224    checkpoint51o_pre
225    
226    o undid all of cp51 pending some cleanups and discussion
227    o added the [#include "AD_CONFIG.h"] statement to all files that need
228       it for adjoint/tl #defines
229     o re-worked the build logic in genmake2 to support AD_CONFIG.h
230     o removed tools/genmake since it no longer works
231    
232    checkpoint51n_post
233    o modifications to make FREEZE flux visible to pkg/kpp
234      - moved surfaceTendencyTice from pkg/seaice to main code
235      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
236      - subroutine FREEZE now limits only surface temperature
237        (this means new output.txt for global_ocean.90x40x15,
238         global_ocean.cs32x15, and global_with_exf)
239    o added surface flux output variables to TIMEAVE_STATVARS
240    
241    checkpoint51n_pre
242    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
243    o added [#include "AD_CONFIG.h"] to all files that use the following
244      defines:
245      - ALLOW_ADJOINT_RUN
246      - ALLOW_TANGENTLINEAR_RUN
247      - ALLOW_ECCO_OPTIMIZATION
248    
249    checkpoint51m_post
250    o incorporating changes to get TAMC/TAF working in genmake2
251      - added new TAMC/TAF targets to the Makefile
252      - various cleanups related to package handling
253      - these changes should have no impact on the forward model
254    
255    checkpoint51l_post
256    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
257     - faster algorithm for cal_addtime.F
258     - higher precision arithmetic, where needed
259     - pkg/exf *startdate variables changed from calendar date to
260       model integration time
261    
262    checkpoint51l_pre
263    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
264    o enable to apply restoring on S & T only in a latitude band.
265    o update output (external_forcing_surf modif. change truncation errors)
266       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
267    
268    checkpoint51k_post
269    o change default to: useNHMTerms=.FALSE.
270     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
271       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
272     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
273        exp1, ideal_2D_oce
274     - change data file of oceanic exp (leave the results unchanged for now)
275       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
276    o set gravitySign automatically according to the vertical coordinate used
277      (and change sign: back to "logical" value: +1 when R increases downward)
278    o added an include barrier to the default CPP_OPTIONS.h and
279      removed the #include "PACKAGES_CONFIG.h" from it
280    o fix a bug in mom_fluxform (from chk51j_post)
281    
282    checkpoint51j_post
283    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
284    o adjusted some flow directives (dynamics, thermodynamics)
285    o added cubed-sphere case to test cost function
286    o heckpoint_lev?_directives.h now include
287      pkg-specific directives, whenever those are enabled.
288    o Moving pkg-specific flow directives to corresponding pkg
289      Moving pkg-specific differentiation list to corresponding pkg
290      Moving pkg-specific checkpoint-lev storing to corresponding pkg
291      ---> conventions are
292           - pkg_ad.flow
293           - pkg_ad_diff.list
294           - pkg_ad_check_lev?_dir.h
295    
296    checkpoint51i_post
297    o merge of the branch-genmake2
298      - knowingly breaks the older genmake
299      - automatic generation of all ALLOW_${PKG_NAME} defines
300      - new testreport supersedes older testscript
301    o large number of package inclusion and header cleanups
302    checkpoint51i_pre
303    
304    o new output for adjoin of global ocean vector invariant
305    o fix for checkpoint of thermodynamic seaice and bulk_force
306    o Steph gchem various cleanups
307    
308    checkpoint 51h_pre
309    o fixed some single quotes
310    o modify gchem pkg to be more versatile
311    o modifications to clean up dic pkg
312    o add pkg/cfc
313    
314    checkpoint51g_post
315    o provide links for ARPACK and ADM*TLM
316    o start removing verification/vero/
317    o update AD-related stuff
318      (in particular some IF-statements in model/src/ routines)
319    o adding to verification/global_ocean.90x40x15/ adjoint of
320      vector invariant setup
321    
322    checkpoint51f_post
323    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
324    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
325      of tracer Green's fucntions for ocean inversion project.
326    
327    checkpoint51f_pre
328    o Added on-the-fly spatial interpolation capability
329        "USE_EXF_INTERPOLATION" to pkg/exf.
330      - This is a temporary Cartesian-grid hack until
331        the super-duper ESMF coupler becomes available.
332      - See verification/global_with_exf/README for usage example.
333      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
334        flags and modified pkg/seaice accordingly.
335    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
336        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
337        non-local transport term.
338    
339    checkpoint51e_post
340    o pkg/mom_vecinv:
341      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
342      - add time-ave diagnostic of vorticity advection.
343    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
344    o atmospheric geopotential: - include water vapor effect;
345                                - use p^kappa in p* scaling.
346    o land pkg: read initial state from files.
347    o AIM : add stratospheric drag in the upper level
348    
349    checkpoint51d_post
350    o change function ILNBLNK (=> last non-blank char.) to return zero
351      (instead of the string length) when the string. char is empty
352    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
353    o modif's to restore TAMC compatibility
354      - avoid "_d" constructs in PARAMETER declarations
355      - avoid interrupting lines by comment lines
356    o Use cluster local disks for purely local I/O
357      vs. globally visible disks needed for ctrl stuff
358      (merged from ecco-branch)
359      - new active_file_loc... and mdsio_..._loc routines
360      - affected packages: autodiff, ctrl, grdchk, mdsio
361    
362    checkpoint51c_post
363    o introducing integer flag debugLevel
364      - debLevZero: suppress all output
365      - debLevA: standard
366      - debLevB: equivalent to current debugMode=.TRUE.
367    o introducing pathname variable mdsioLocalDir for mdsio
368      that can be specified at runtime
369      (relevant for cluster I/O to local disk)
370    `
371    >>>checkpoint51b_post
372    adjoint of ptracers
373    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
374    o extended state in checkpoint_lev?, etc.
375    o alternative ctrl/cost with tr1 or ptracer
376    o new comlev1_bibj_ptracers
377    o new ptracers.flow
378    o made ptracers_forcing same as external_forcing_s
379    o added verification for adjoint with ptracers
380      - adm. grdchk fail so far
381      - tlm. grdchk OK
382      - checked tapelev/comlev recomputations: OK
383    <<<checkpoint51b_pre
384    
385    checkpoint51a_post
386    o added code for biogeochemistry package
387      - new pkgs: dic, gchem
388      - new subroutine in ptracers
389    o modify code for biogeo packages
390      - in model/src and pkg/ptracers
391    
392    checkpoint51
393    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
394      - autodiff, ctrl, exf, grdchk, seaice
395      kept separate packages
396      - cost, ecco, obcs
397    o updating verification/internal_wave, verification/lab_sea
398      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
399    
400    checkpoint50i_post
401    o Preparing next differentiable checkpoint and sync
402      of MAIN vs. ecco-branch
403      - 1st step: this one is differentiable
404      - 2nd step: next(! not this) checkpoint will have updated packages
405                  from ecco-branch)
406    
407    checkpoint50h_post
408    o new package "land": provide surface BC for AIM.
409    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
410    o AIM: use true log-P extrapolation for near surface temp (= as in
411        F.Molteni paper) ; update aim.5l_cs output.
412    o New variable in PARM03 for more flexible pickups
413    o somewhat cleaned package initialisation sequence for
414      ctrl/ cost/ ecco/ in packages_... routines
415    
416    checkpoint50g_post
417    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
418      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
419      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
420        made the default because of faster convergence than ADI
421    
422    checkpoint50f_post
423    o exf totally restructured
424      - replaced all exf_set_ routines by one generic exf_set_gen.F
425        and made sure it's still differentiable
426      - split exf_getffields.F into new exf_bulkformulae.F
427      - exf_inscal_/exf_outscal_ suffixes consistent with field names
428      - updated adjoint/makefile and relevant verif. accordingly
429    
430    checkpoint50f_pre
431     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
432          + change Evap over land. (update aim.5l_cs output)
433     o added missing .cvsignores and made uniform across expts
434     o changed configuration of tidal_basin_2d expt
435     o added pkg/debug functions for tracing code in fatal crashes
436     o tidied pkg/monitor to use MONITOR_OPTIONS.h
437     o new fn in pkg/monitor to stop model if solution grows too big
438     o removed lots of single quotes from comments
439    
440    checkpoint50e_post
441    o make KPP work with PTRACERS
442     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
443       nearly a copy of kpp_transport_s
444     - there is no analogue to SurfaceTendencyS, so I have to use
445       gPtr(of the surface layer) instead
446    o add a new platform SunFire+mpi (SunFire 15000) to genmake
447    checkpoint50e_pre
448    
449    checkpoint50d_post
450    o change kpp output from multiple-record state files to single-record state
451      files analogous to write_state.F
452    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
453      analogous to the cg2d-related output.
454    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
455      so that writing to internal file fn (with length 512) fails.
456    checkpoint50d_pre
457    
458    checkpoint50c_post
459    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
460    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
461    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
462    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
463    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
464    
465    checkpoint50c_pre
466    Merging from release1_p13:
467    o bug fix for pkg/seaice dynamic solver
468    o Added SEAICE_initialHEFF to pkg/seaice
469    
470    checkpoint50b_post
471    o store u*,v* in gU,V instead of in guNm1,gvNm1
472    o in order to put the momForcing out of the Adams-Bashforth:
473      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
474      to timestep.F
475    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
476    o re-generate output for highly sensitive test-exp:
477       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
478    
479    checkpoint50b_pre
480    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
481    o corrected CPP option mismatch in exf_Bulk... functions for case
482      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
483    
484    checkpoint50a_post
485    o Bug fix for merging between c50 and KPP.
486      ikey was passed from thermodynamics to kpp_calc via
487      common block rather than being recomputed in kpp_calc,
488      in contradiction with new key itdkey.
489      New key ikppkey created, and tamc.h headers updated.
490    
491    checkpoint50
492    - 2nd step of merge with ecco-branch:
493      merge changes in ecco-branch back into main trunk
494    - bug fix in find_alpha
495    - more storing in gmredi_calc_tensor.F, kpp_routines.F
496    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
497    - merged some sliced AD support routines
498    
499    checkpoint49
500    merged from ecco-branch:
501    o exf:
502      - Enable initialisation of forcing fields to constant
503        (runtime) values.
504      - in exf_getffields.F
505        Reduce i-/j-loop to interior domain, discarding overlaps.
506        That also fixes wrong TAF-key computations for key_1, key_2
507        with bulf formulae.
508      - exf_init.F modify #ifdef for exf_init_evap
509      - exf_getffieldrec.F, ctrl_getrec.F
510        The following INT-usages are not safe:
511          fldsecs  = int(fldsecs/fldperiod)*fldperiod
512          fldcount = int(fldsecs/fldperiod) + 1
513        and were modified.
514    o autodiff: checkpoint_lev...
515      - updated storing for bulk formulae (some arrays were missing)
516      - added state for seaice package
517      - synchronized with main branch
518    o DIVA:
519      Modif.s in
520      - the_main_loop.F
521      - the_model_main.F
522      and added cost_final_restore.F cost_final_store.F
523      o With these changes, it is possible to fully separate
524        the first forward run to compute the cost function (mdthe_main_loop)
525        and adjoint runs over individual DIVA intervals (adthe_main_loop)
526        into separate model executions.
527        This enables better tuning of DIVA to given queue sizes.
528      o Loss of cost function value in consecutive DIVA runs is
529        fixed by storing to 'costfinal' file.
530      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
531        beginning/end of adjoint integration is accounted for.
532      The current changes apply to TAF-1.4.26.
533      TAF has one remaining bug, requiring one manual change
534      (see MITgcm manual).
535    o cal: synchronized between MAIN and ecco-branch
536    
537    checkpoint48i_post
538    o Changes to restore differentiability of code w.r.t. previous tag
539      (mostly adding new routines to make list and replacing
540      pressure by totPhiHyd).
541    o Updated and merged grdchk package
542      - has both ADM and TLM checks
543      - works for single- and multi-proc.
544      - output cleaned
545      - worked successfully for parallel DIVA
546    o genmake:
547      - Adding -platform=SP4
548      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
549    o Modif. for DIVA:
550      ctrl_unpack should not be called in intermediate DIVA interval.
551      (similar thing would apply for active files such as
552      tbar, sbar, psbar, which should not be reinitialised;
553      only relevant for ecco-branch)
554    
555    checkpoint48h_post
556    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
557    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
558    o Added SEAICE_initialHEFF to pkg/seaice
559    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
560    
561    checkpoint48g_post
562    --- EOS:
563    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
564      store total Potential in totPhyHyd for diagnostics & EOS.
565    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
566    --- Pressure/geopotential gradient:
567    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
568    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
569      ( changes results of global_ocean_pressure )
570    o NLFS + z-coord.: add eta*Rho' contribution.
571    o accurate phiHyd when using interface-W at the middle between 2 centers
572     ( changes results of ideal_2D_oce )
573    o includes r* 2nd term in potential gradient.
574    
575    checkpoint48f_post
576    Merging from release1_p12:
577    o Modifications for using pkg/exf with pkg/seaice
578      - improved description of the various forcing configurations
579      - added basic radiation bulk formulae to pkg/exf
580      - units/sign fix for evap computation in exf_getffields.F
581      - updated verification/global_with_exf/results/output.txt
582    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
583      (SBO) core products, including oceanic mass, center-of-mass,
584      angular, and bottom pressure (see pkg/sbo/README.sbo).
585    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
586      to avoid negative values in shallow regions.
587      - updated verification/natl_box/results/output.txt
588      - updated verification/lab_sea/results/output.txt
589    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
590    o Added useSingleCpuIO option (see PARAMS.h).
591    o Updated useSingleCpuIO option in mdsio_writefield.F to
592      work with multi-field files, e.g., for single-file pickup.
593    o pkg/seaice:
594      - bug fix in growth.F: QNET for no shortwave case
595      - added HeffFile for specifying initial sea-ice thickness
596      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
597    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
598      kpp_transport_t.F, forward_step.F, and the_main_loop.F
599    o pkg/seaice:
600      - adjoint-friendly modifications
601      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
602    
603    checkpoint48e_post
604    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
605    o dynamics: change definition of computational domain & adapt mom_fluxform
606      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
607    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
608        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
609        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
610        global_ocean.90x40x15 global_with_exf global_ocean_pressure
611        inverted_barometer solid-body.cs-32x32x1
612      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
613    
614    checkpoint48d_post
615    o in preparation for r*:
616     a) use pre-computed gradient of hydrostatic potential:
617        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
618     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
619        => affects results of glob_oce_pressure (different truncation error)  
620      update output.txt of ideal_2D_oce & global_ocean_pressure
621    
622    checkpoint48d_pre
623    o in preparation for r*:
624      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
625      pass the 2 comp. of the grad. as arguments to momentum S/R.
626      but for the moment, only used if it does not change the results.
627    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
628    
629    checkpoint48c_post
630    Modifications in treatment of initial flux forcing controls
631    to avoid extra storing of flux fields.
632    
633    checkpoint48c_pre
634    o Added tidal_basin_2d experiment (currently 1D!)
635    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
636    
637    checkpoint48b_post
638    o r* coordinate added in #ifdef NONLIN_FRSURF block.
639     (modification to pressure gradient not yet implemented)
640    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
641      (for U & V) that are used for vertical advection of momentum.
642    
643    checkpoint48a_post
644    o In preparation for r*, use temp. array to compute vertical transport
645       in flux-form momentum pkg. => change results of few test-exp.
646      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
647                        lab_sea, natl_box & plume_on_slope
648    
649    checkpoint48
650    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
651    
652    checkpoint47j_post
653    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
654    o moved adexch from forward_step to addummy_in_stepping
655    o added exch in ctrl_map_...
656    o aveFreq.=0. at end of cost_final to avoid overwrite in
657      reverse checkpointing loop
658    o Yet more changes in gmredi:
659      * adgmredi_calc_tensor
660        avoiding all recomputation of gmredi_slope_limit
661      * adgmredi_x/y/rtransport
662        added flag for excessive storing to avoid recomp. of
663        u/v/rtans, dTdx/y/z
664        -> this is not really necessary and very memory-consuming
665      * adgmredi_slope_psi:
666        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
667      * gmredi_slope_limit
668        re-activated full calculation of taperfct for case 'ac02'
669    o updating verification/ adjoints of carbon, global_ocean.90x40x15
670    
671    checkpoint47i_post
672    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
673    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
674      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
675    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
676    o gmredi: fix few bugs.
677    
678    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
679    This will be a good checkpoint to plug into the ecco-branch.
680    o few modif.'s to get latest version adjointed
681      (mainly kick out code in ini_linear_phisurf)
682    o modif's to run adjoint with exactConserv
683    o case GM_BOLUS_ADVEC should be cleaned
684      S/R gmredi_slope_psi should be cleaned
685    o verification/carbon now has exactConserv=.TRUE.
686    
687    checkpoint47g_post
688    o time-average AIM output: becomes independent from statvars time-average
689      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
690    o After TAF bug fix:
691      Tested adjoint of gmredi package.
692      Tests were done with checkpoint47 rather than with latest
693      checkpoint47f_post since the latter is broken for the adjoint
694      verification/carbon/ contains both ADM and TLM gradient checks.
695    Here they are, before they get changed/lost/stolen.
696    Mostly modif.'s to fix numerical sensitivities.
697    Gradient checks OK for
698    - GM_taper_scheme:
699      * clipping
700      * ac02
701      * linear
702      * glw91
703      * dm95
704      * ldd97
705    - GMREDI_OPTIONS:
706      * GM_VISBECK_VARIABLE_K
707      * GM_NON_UNITY_DIAGONAL
708      * GM_EXTRA_DIAGONAL
709      * GM_BOLUS_ADVEC
710    in conjunction with data.gmredi parameters to be checked in
711    in a few minutes under verification/carbon/code/
712    
713    checkpoint47f_post
714    Merging from release1_p10:
715    o modifications for using pkg/exf with pkg/seaice
716      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
717        and SEAICE_EXTERNAL_FLUXES
718      - pkg/exf CPP options EXF_READ_EVAP and
719        EXF_NO_BULK_COMPUTATIONS
720      - usage examples are Experiments 8 and 9 in
721        verification/lab_sea/README
722      - verification/lab_sea default experiment now uses
723        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
724    
725    checkpoint47e_post
726    o created a tag prior to creating a branch
727    
728    checkpoint47d_post
729    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
730      at the bottom boundary had an erroneous half slip boundary condition
731    o added bottom drag and no slip boundary condition capabilities to
732      oceanic pressure coordinates code
733    o added new verification experiment global_ocean_pressure, this experiment is
734      also described in the tutorial section of the manual
735    checkpoint47d_pre
736    
737    checkpoint47c_post
738    o Added a verification experiment for a global cubed-sphere ocean run
739      -  verification/global_ocean.cubed32x32x30
740      -  uses pkg/therm_seaice and pkg/bulk_forcing
741    
742    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
743    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
744      when using P-coordinate; only implemented for atmospheric config.
745    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
746      NOTES: requires option NONLIN_FRSURF to be "#define".
747    o update advect_xz/results/output.txt (left from checkpoint44g_post)
748    
749    checkpoint47b_post
750    Merging from release1_p9:
751    o pkg/seaice
752      - removed GOTO's and added taf directives
753      - double precision constants to reduce the g77 (Linux)
754        to F77 (SGI) differences reported in release1_p8
755    o tools/genmake
756      - added SGI options
757    o verification/testscript
758      - updated to that of checkpoint47a_post
759    o verification/global_ocean.90x40x15/input/eedata
760      - modified for SGI f77 compatibility
761    o verification/lab_sea
762      - added description of sea-ice model
763      - added missing matlab routines
764      - added test of thermodynamics parallelization
765    
766    checkpoint47a_post
767    o new pkg: aim_v23
768     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
769       for now, keep the same surface forcing as before.
770     - Part-Cell implemented into AIM; check that Heat & Water are conserved
771     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
772     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
773    o add diagnostic of surface correction term in monitor output
774    
775    o bulk_force and therm_seaice
776    - Two packages:  bulk_force (Bulk forcing)
777      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
778    - Earlier integration from Stephaine Dutkiewicz
779      and Patrick Heimbach.
780    - Two ifdef statements for compile time,
781       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
782    
783    checkpoint47
784    differentiable version of checkpoint46n_post
785    o bug fix in quasihydrostaticterms
786    o * "clean" adjoint code (in terms of extensive recomputations)
787        can now be obtained for all GMREDI options (i.e. for
788        - GM_VISBECK_VARIABLE_K
789        - GM_NON_UNITY_DIAGONAL
790        - GM_EXTRA_DIAGONAL
791        - GM_BOLUS_ADVEC )
792      * However, wrong gradient check problem remains unsolved.
793      * New CPP options have been introduced for different
794        tapering schemes
795    o external_fields_load now part of differentiation list
796    o pressure needs multiple storing;
797      would be nice to have store_pressure at beginning or
798      end of forward_step, e.g. by having phiHyd global (5-dim.)
799      (NB: pressure is needed for certain cases in find_rho,
800      which is also invoked through convective_adjustment).
801    o recomputations in find_rho for cases
802     'JMD95'/'UNESCO' or 'MDJWF' are OK.
803    o #define ATMOSPHERIC_LOADING should be differentiable
804    o ini_forcing shifted to begining of initialise_varia
805    o Incorporating QNVS line search routines into MITgcm
806      (this is separate code, and therefore not under pkg)
807      lsopt/, optim/
808    o Updated verification/carbon/
809      - #define GM_VISBECK_VARIABLE_K
810      - GM_taper_scheme    = 'ldd97'    
811    
812    checkpoint46n_post
813    Merging from release1_p8:
814    o verification/natl_box:
815      updating new external_fields_load routine
816    o New package: pkg/seaice
817      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
818      The sea-ice code is based on Hibler (1979-1980).
819      Two sea-ice dynamic solvers, ADI and LSR, are included.
820      In addition to computing prognostic sea-ice variables and diagnosing
821      the forcing/external data fields that drive the ocean model,
822      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
823      The implied surface heat flux is then stored in variable
824      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
825      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
826      non-local transport term.  Because this call precedes model
827      thermodynamics, temperature under sea-ice may not be "exactly" at
828      the freezing point by the time theta is dumped or time-averaged.
829      N.B.: fairly large differences in accuracy occur across
830            different platforms/compilers; comparison between
831            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
832            generated output gives:
833       T           S           U           V
834      C D M    c        m  s        m  s        m  s        m  s
835      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
836      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
837      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
838    
839      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
840    o GAD:
841      - generated new common blocks to account for call of
842        same gad routines with differing traceridentities
843        (needed to modify tracerIdentity indices in GAD.h)
844      - generated separate common blocks for case useCubedSphereExchange
845        (Department of Futurology)
846      - parameter lists to gmredi_?transport: added tracerIdentity
847      - added new key indices to tamc.h
848    o external_fields_load:
849      - added this routine to TAF list
850      - needed to make some common blocks global and additional storing
851        along the same lines as exf package (checkpoint_lev?_directives.h)
852    o exf:
853      updated external forcing package
854      - bug fixes carried over from ecco-branch
855        (missing OBCS_OPTIONS.h in two routines)
856      - enable easy to use "no forcing".
857      - added exf I/O for atmospheric loading
858      - added exf I/O for runoff data
859      - transfered scaling between exf <-> MITgcm to exf namelist
860    o Adding new verification experiment global_with_exf.
861      This verification experiment is almost identical to the
862      global_ocean.90x40x15 experiment, except that it uses
863      the exf (and cal) package instead of the
864      external_fields_load routine (cf README file).
865    
866    checkpoint46m_post
867    o modified testscript to return -- when there are no lines of "%MON" output
868    o added new flag "quasiHydrostatic" for QH mode
869      and new routine quasihydrostaticterms()
870    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
871      New routine: mom_u_coriolis_nh()
872    o fixed sign of non-hydrostatic metric terms in u and v equations.
873      Depend on correct sign of gravitySign.
874    o added work.pc* to .cvsignore in aim directories using ifc
875    o introduced flag for controllin non-hydrostatic metric terms
876    o removed gravitySign from PARM04
877    o switched to g77/ifc from pgf77 in aim experiments
878    
879    checkpoint46l_post
880    o made convective adjustment work with pressure coordinates:
881     - changed the direction of k-loop in convective_adjustment.F for the
882       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
883     - adjusted the reference pressure k-index in convective_adjustment.F
884     - adjusted the convection condition in convect.F (in analogy to
885       calc_ivdc.F)
886     - convective_adjustment no longer computes anything on the halos
887     - removed the warnings about negative salinity from find_rho.F and
888       find_alpha.F; instead the new routine look_for_neg_salinity, called
889       at the beginning of find_rho, find_alpha, and find_beta, does a
890       check of the entire slice, if CPP-option
891       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
892    checkpoint46l_pre
893    
894    checkpoint46k_post
895    o fixed the verification/global_ocean.90x40x15 experiment:
896     - new bathymetry (the world according to A., JMC, and M.)
897     - new initial fields and forcing fields (*.bin files)
898     - new POLY3.COEFFS (for the next release one should switch to a full
899       equation of state: JMD95P or MDJWF)
900     - fixed several errors and redundancies in the data file
901     - experiment uses looped cells
902     - added matlab directory with diagnostic scripts for plotting of output
903    
904    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
905     - read AIM physics parameters from a file (data.aimphys)
906     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
907    
908    checkpoint46j_post
909    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
910    o move wVel computation at the end of the time step, in S/R integr_continuity
911    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
912    o update timeave pkg for wVel diagnostic.
913    checkpoint46j_pre
914    
915    checkpoint46i_post
916    o Clean up AIM package (and keep the results unchanged):
917      include CPP_OPTION and use IMPLICT NONE in all routines ;
918      declare all the variables _RL ; use _d 0 for all numerical constants.
919      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
920    
921    checkpoint46h_post
922    o cleaned up the use of rhoNil and rhoConst.
923      - rhoNil should only appear in the LINEAR equation of state, everywhere
924        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
925        and the dynamical equations are all divided by rhoConst
926    o introduced new parameter rhoConstFresh, a reference density of fresh
927      water, to remove the fresh water flux's dependence on rhoNil. The default
928      value is 999.8 kg/m^3
929    o cleanup up external_forcing.F and external_forcing_surf.F
930      - can now be used by both OCEANIC and OCEANICP
931    checkpoint46h_pre
932    
933     Added code to convert surface volume flux (fresh water) into
934     a mass flux when using P coordinates in the ocean (OCEANICP).
935     Note: It assumes you have set rho0=rhoConst=density of fresh water.
936    
937    checkpoint46g_post
938    o Include a new diagnostic variable phiHydLow for the ocean model
939      - in z-coordinates, it is the bottom pressure anomaly
940      - in p-coordinates, it is the sea surface elevation
941      - in both cases, these variable have global drift, reflecting the mass
942        drift in z-coordinates and the volume drift in p-coordinates
943      - included time averaging for phiHydLow, be aware of the drift!
944    o depth-dependent computation of Bo_surf for pressure coordinates
945      in the ocean (buoyancyRelation='OCEANICP')
946      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
947        Theta, Salinity, and Pressure in the parameter list. This routine is
948        presently contained in find_rho.F. This routine does not give the
949        correct density for 'POLY3', which would be a z-dependent reference
950        density.
951    o cleaned up find_rho
952      - removed obsolete 'eqn' from the parameter list.
953    o added two new verification experiments: gop and goz
954      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
955    checkpoint46g_pre
956    
957    checkpoint46f_post
958    o Enable tangent linear (forward mode) gradient checks:
959      - extended active file handling to g_... files
960      - added TANGENT_SIMULATION to theSimulationMode
961      - extended grdchk package accordingly
962    o added tangent linear setup in verification/carbon/code_ftl
963    o added adjoint setup in verification/front_relax/code_ad
964    
965    checkpoint46e_post
966    o Added new equation of state -> MDJWF
967      - EOS of McDougall et al., 2002, JAOT, submitted
968      - caveat: the equation of state is only valid for a smaller (more
969        realistic?) range of values than JMD95P/Z and UNESCO
970      - added masks to the calculation of pressure in store_pressure
971      - added more check values for density in check_eos (ini_eos.F), some of
972        the old check values are out of the range of the MDJWF-eos, so don't
973        expect perfect matches for those
974    checkpoint46e_pre
975    
976    checkpoint46d_post
977    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
978      'OCEANICP', also initialised field pressure correctly in ini_eos in the
979      case of pressure coordinates. eosType='JMD95Z' in
980      combination with buoyancyRelation='OCEANICP' now causes an error.
981    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
982      in find_alpha/beta.
983    checkpoint46d_pre
984    
985    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
986      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
987    
988    checkpoint46c_post
989    o Changes necessary for ocean in p-coordinates
990     -  Added new buoyancy relation = 'OCEANICP'
991     -  Added new parameters = gravitySign (this used to be contained inside
992        the factor dRdZ which I added when we first switched to R coordinates).
993     X GM/Redi is not compatible (yet)
994     X bottom drag and no-slip need to be debugged.
995    checkpoint46c_pre
996    
997    checkpoint46b_post
998    o Added new equation of state -> JMD95Z and JMD95P
999      - EOS of Jackett and McDougall, 1995, JAOT
1000      - moved all EOS parameters into EOS.h
1001      - new routines ini_eos.F, store_pressure.F
1002    o Added UNESCO EOS, but not recommended because it requires
1003      in-situ temperature (see JMD95)
1004    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1005      unesco.f to be used with POLY3
1006    checkpoint46b_pre
1007    
1008    checkpoint46a_post
1009    o Added (atmospheric) pressure loading
1010      - new field in FFIELDS.h, etc...
1011      - new cpp flag ATMOSPHERIC_LOADING
1012    o Changed hFacC to _hFacC in calc_phi_hyd.F
1013    o Added SHORTWAVE_HEATING to some files for consistency
1014    checkpoint46a_pre
1015    
1016    checkpoint46
1017    further merges from release1_p5
1018    o new ctrl package
1019      - adopted from ECCO environment to enable optimization
1020      - added Eliassen Palm fluxes to controls
1021    o added Eliassen Palm flux controls to gradient check package
1022    o cost package
1023      - Compatible with new ctrl package
1024      - added Eliassen Palm cost hooks
1025      - modif's of existing cost functions
1026    o Adjoint-related bug fixes in kpp:
1027      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1028      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1029    o autodiff package
1030      - flow directives:
1031        + new for S/R do_the_model_io
1032        + enhanced for S/R checkpoint
1033        + new gmredi.flow
1034      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1035        disable adcommon.h/g_common.h by default.
1036      - fixed problem for adjoint of global_max
1037    o modified verification/carbon/
1038    o New setup for adjoint of global_ocean
1039    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1040    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1041    o incorporated hooks for sponge layer code (external_forcing.F)
1042    
1043    checkpoint45d_post
1044    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1045    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1046      (affects plume_on_slope "cg2d" output)
1047    o add new parameter deltaTfreesurf for free-surface time stepping
1048    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1049    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1050    o change phiMin in exp1 (to agree with documentation)
1051    o add new flags:
1052     - T,S forcing inside/outside Adams-Bashforth
1053     - turn off temp,salt advection and/or forcing
1054     - for each tracer, define internal flag for multiDimAdvection & A-B
1055    o monitor: change definition of KE to check conservation of Energy
1056    
1057    checkpoint45c_post
1058    o Removed f90 comments ("!")
1059    o Modified initialisations to enable exf package for MITgcm
1060      (without invoking ECCO_PACKAGE).
1061    o modifications to gradient check package (Martin Losch)
1062      - enable centered differences
1063      - modified format of standard output
1064    
1065    checkpoint45b_post
1066    o cleaned exchange calls in cg2d
1067    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1068    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1069      to configure barotropic setup (Martin Losch)
1070    o moved some initialisations within bi,bj loop in dynamics
1071      (TAF flow dependency)
1072    o in initialise_varia, moved call packages_init_variables
1073      before convective_adjustment_init
1074      (corresponding adjustment of TAF tape initialisation).
1075    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1076    
1077    checkpoint45a_post
1078    o compute Rho over the whole domain (extend iMin,jMin indices)
1079    o specific exchange for X-slice domain (case Ny=1)
1080    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1081    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1082    
1083    checkpoint44h_post = checkpoint45
1084    o Fix to restore differentiability:
1085      place at which packages_init_variables is called in
1086      initialise_varia is crucial for reverse control flow.
1087    o modifications in GMRedi to enable stable adjoint
1088      (corresponding modif's in thermodynamics, dynamics)
1089    o added missing hook for sponge layer code in external_forcing
1090    o modified test cost functions
1091    o storing in gad_advection (plus removal of write(0,*)!
1092    o missing headers TR1.h added in convective_adjustment routines
1093    o errorMessageUnit set non-equal zero in eeboot
1094      (conflict on some platforms, e.g. IBM SP3)
1095    o modified carbon verif.
1096    
1097    checkpoint44h_pre
1098    o vertical grid option: allow to put the Interface at the middle between
1099      2 cell-centers ; replace delZ in pkg/kpp by drF.
1100    o GM Advective form: Tracers are advected using the residual transport (=
1101      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1102    
1103    checkpoint44g_post
1104    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1105      results) ; ifdef missing in thermodynamics.F
1106    
1107    checkpoint44f_pre,checkpoint44f_post
1108    o added PTRACERS package
1109      This allows an arbitrary number of passive tracers to be integrated
1110      forward simultaneously with the dynamicaly model.
1111      + Implemented so far:
1112        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1113        - I/O and checkpointing
1114        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1115      + Not implemented so far:
1116        - KPP
1117        - OBCS
1118      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1119        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1120        line in data.pkg.
1121      + This package is disabled by default since it increases storage.
1122    
1123    
1124    o testscript: added -cleanup option
1125    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1126                 b) enable to filter 2D fields.
1127    
1128    checkpoint44e_pre,post
1129    o re-wrote convective adjustment to use pre-calculated weights
1130      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1131      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1132      Original calls to convect() still in place.
1133    
1134    chkpt44d_pre,post
1135    o added missing EXCLUDE_MONITOR flags
1136    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1137      (incompatible typ in MIN/MAX expressions caused problems
1138      on IBM SP3)
1139    o in genmake added variable MAKEDEPEND
1140      plus resetting for case SunOS
1141    o added timer_stats.c routine for IBM SP3
1142    o removed variables in dynamics
1143    !!! I forgot to create tag chkpt44d_pre !!!
1144    !!! But chkpt44d_pre = chkpt44c_post    !!!
1145    
1146    o real fresh water flux implemented with non-linear free-surface.
1147    
1148    chkpt44c_pre,post
1149    o few fix (mask in shap_s2, EmPmR in external_field_load,
1150      USE_NATURAL_BCS in solve_for_P);
1151    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1152    
1153    checkpoint44b_pre/_post
1154    o merge of relevant stuff from the ecco-branch:
1155      - genmake: removed $S64 overwrite for case SunOS
1156      - pkg/exf: update and corrections for field swapping and obcs
1157      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1158                  harmonized between ECCO and MITgcm
1159      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1160                      updated checkpointing_lev... lists for obcs
1161      - model/src: minor changes in forward_step, plot_field
1162                   added directive for divided adjoint in the_main_loop
1163      - pkg/mdsio: added mdsio_gl_slice
1164    
1165    o check parameters & config (chkpt44a_pre,post)
1166    o OBC and NonLin_FrSurf.
1167    
1168    checkpoint44
1169    o fix bug in mom_vi_del2uv
1170    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1171    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1172    o update AIM experiments (NCEP input files)
1173    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1174    o added some stuff for AD
1175    
1176    checkpoint43
1177    o added two new advection tests
1178    o added global 4x4 degree ocean test
1179    o added test of H&S94 with free surface on cube
1180    o some final mods for gradient check, adjoint,...
1181    
1182    checkpoint42
1183      Fixed AD-related problems:
1184    o Store directives up-to-date with re-arranged Adams-Bashforth
1185      (mainly thermodynamics.F)
1186    o New store directives for multi-dim. advection schemes
1187      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1188      * new common block and key passkey
1189      (mainly gad_advection.F)
1190    o Modified store directives for split of dynamics/thermodynamics
1191      for the case ALLOW_KPP
1192    o Cleaned argument list for timestep_tracer.F
1193    
1194    checkpoint41
1195    o re-formatted/added comments in prologues of key subroutines
1196      to work with protex
1197    
1198    checkpoint40
1199    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1200    o added FLT (floats) package from Arne along with demo. experiment
1201    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1202      implementation of forward-in-time forcing terms
1203    o more mods for non-linear free-surface including new variable
1204    o modified multi-dim method to work on cube
1205    o bug fix in KPP (from DM)
1206    
1207    checkpoint40pre9
1208    o added DST advection schemes
1209    o fix MPI bug on SGI's
1210    o modifications for non-linear free-surface
1211    o fixed conditionals for fixed flow/passive tracer only mode
1212    o added tension/strain form of stress tensor
1213    o changes to commenting of arguments for TAF/TAMC
1214    o added/updated many matlab scripts
1215    o added multi-dimensional advection method for tracers
1216      
1217    checkpoint40pre8
1218    o new package rw/
1219      Added method for dumping intermediate local arrays:
1220      mdsio_writetile - same as mdsio_writefield except works from inside
1221                        bi,bj loop
1222      mdsio_writelocal - same as mdsio_writetile except works for local
1223                         arrays
1224      write_local_r? - higher-level wrapper for mdsio_writelocal
1225      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1226      Example given at end of mom_vecinv.F that dumps some local arrays.
1227    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1228      control flux-form versus vector invariant code.
1229      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1230      or genmake -DISABLE ...
1231    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1232      (additional storing is now needed for case vecinv;
1233      currently nothing implemented to switch this storing off
1234      in case fluxform is used since no CPP flag available).
1235    
1236    checkpoint40pre7
1237    o bug fix in dynamics.F
1238      calc_viscosity called before k=1,Nr loop.
1239    o added some #ifdef's ALLOW_PASSIVE_TRACER
1240    o cleaned initialisations in ctrl_map_ini
1241      related to TAF
1242    
1243    checkpoint40pre6
1244    o split dynamics into thermodynamics & dynamics
1245    o corresponding split of calc_diffusivity into
1246      calc_diffusivity, calc_viscosity
1247      (kpp_calc_diff, kpp_calc_visc).
1248    o Added diffkr, kapgm to control variables
1249    o bug fix in gmredi_slope_limit for ldd97
1250    
1251    checkpoint40pre5
1252    o proper initialization of Adams-Bashforth time stepping
1253      + uses forward step for very first step of model (iter=0)
1254    o re-generated *all* output since almost all output is modified by this
1255      change (sorry but we've been putting this one off for about 2 years)
1256      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1257        *not* regenerated since they are already out of date and I don't
1258        want to create the impression that they are suddenly working.
1259    o removed KAP stuff for DEC's
1260    o modified/added many .cvsignore files in */code and */input
1261    o added new expt "solid-body.cs-32x32x1"
1262      + this uses an alternative form of ini_curvilinear_grid.F which
1263        is not necessarily any better than the current one...
1264    
1265    checkpoint40pre4
1266    o added re-initialisations of utrans,vtrans,rtrans in
1267      calc_common_factors which are crucial for TAF.
1268    o extended iMin,jMin range for calc_common_factors,
1269      calc_diffusivity
1270    o added option ALLOW_PASSIVE_TRACER
1271    o a few minor updates and fixes
1272    
1273    checkpoint40pre3
1274    o created calc_gtr1.F for gad package
1275    o split the_main_loop and re-introduced forward_step
1276    o some recomputations of nIter0 for TAMC
1277    
1278    checkpoint40pre2
1279    o Updated to latest branch of AJA, JMC
1280    o Added gradient check package
1281    o Added routines for passive tracer handling
1282    o Added carbon sequestration sensitivity experiment
1283    
1284    checkpoint39
1285     o Modifications and fixes to support TAMC
1286       (mainly missing or wrong directives)
1287     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1288       in addummy_in_stepping
1289     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1290     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1291     o Included following packages:
1292       cal: calendar
1293       exf: external forcing
1294       ecco: essential routines to control use of cal, exf
1295             (NB: this is not the full ECCO environment)
1296     o disabled some packages by default in genmake
1297    
1298    checkpoint38
1299     o see notes_c37_adj.txt
1300     o corrected wrong layer index in external_forcing_t
1301     o replaced the_main_loop/forward_step by the_main_loop
1302     o removed forceoutput from write_state
1303       (replaced criteria for initial/final state)
1304     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1305    
1306    checkpoint37
1307     o mdsio.F routine split and packaged in pkg/mdsio
1308       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1309        used unless genmake -disable=mdsio)
1310     o allow a more precise surface-geopotential gradient for the atmosphere
1311       taking into account the change in space of Alpha (=1/rho) at the surface.
1312     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1313       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1314     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1315       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1316       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1317     o Time-Average diagnostics defined as a pseudo package "timeave".
1318     o pickup files : old pickup (before c35) did not work with new code (c35
1319       and after) unless activating 2 commented lines in initialise-varia.
1320     o Non-Hydrostatic pickup file Pb fixed.
1321     o bug with Rigid-lid version (since c35) fixed.  
1322    
1323    checkpoint36
1324     o implement Crank-Nickelson barotropic time-stepping
1325     o recover Time-Average diagnostics
1326     o fix Pb in checkpoint (PR#19)
1327     o AIM become a standard package ; clean unused CPP_kees
1328    
1329    checkpoint35
1330     o subtantial rewrite of dynamics.f
1331     o allows staggered time-stepping
1332     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1333     o added bottom drag (linear + quadratic)
1334    
1335    checkpoint34
1336     o Modified exchange routines for correct reverse simulation.
1337     o Added verification output to comply with bug fix in impldiff.F
1338       as of c33 (exp2, natl_box).
1339     o Corrected store directives in dynamics.F
1340     o Corrected array boundaries in impldiff.F
1341     o Corrected array dimensions in gmredi.
1342       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1343     o Added routine GLOBAL_SUM_INT to global_sum.F
1344     o Added mdsio_gl.F for ECCO purposes.
1345    
1346    checkpoint33
1347     o Fixed bug in lower BC in impldiff.F
1348     o Fixed confusion about units of forcing arrays in FFIELDS.h
1349       namely Fu,Fv,Qnet,Qsw,EmPmR:
1350       - Removed verification/natl_box/code/external_fields_scale.F
1351         (did not differ from that in model/src)
1352       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1353         (see FFIELDS.h for description)
1354       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1355         kpp_calc.F and kpp_transport_t.F
1356       - Removed model/src/external_fields_scale.F and calls to it
1357       - verification/natl_box uses flux data with "atmospheric" sign so
1358         a special version of external_fields_load.F is used to
1359         change the data as it's read in. This way, the arrays
1360         have the right units and signs at all times tha a user could
1361         possibly use them.
1362     o Corrected genmake to delete a temporary file during configuration
1363    
1364    checkpoint32
1365     o Scaling of forcing fields moved from external_forcing.F to
1366       external_fields_scale.F, called directly after loading fields.
1367     o Surface relaxation terms added to surface tendency fields in
1368       extra subroutine.
1369     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1370       fields.
1371     o Changes in GMRedi to comply with packaging structure.
1372     o Modifications and bug fixes in KPP package.
1373     o Verification experiment for KPP added (verification/nat_box/)
1374    
1375    checkpoint31
1376     o Packages interface brought in line with defined standard
1377       -> new routines packages_...F
1378       -> changes in initialise_fixed.F, initialise_varia.F
1379       -> enables initialisation interface for ECCO package
1380     o Rescaling of external forcing fields immediately after read
1381       (removed from external_forcing.F)
1382       -> new: surface_fields_scale.F
1383       -> affects ini_foorcing.F, external_fields_load.F
1384     o Computation of surface tendencies before tendency updates.
1385       -> new: external_forcing_surf.F
1386     o Change of variable names useGMRedi, useKPP, useECCO
1387     o Further changes in dynamics.F, impldiff.F for TAMC
1388     o Tested for experiments 0, 2, 4.
1389       - not yet tested for GMRedi.
1390       - not yet tested for KPP.
1391    
1392    checkpoint30
1393     o Updates for OBCs
1394     o New experiment for test OBCs (internal_wave)
1395     o New output.txt in verification/exp4/results/
1396     o Updates for KPP: calculation of viscosity corrected, new variables
1397       kpp_dumpFreq and kpp_taveFreq
1398     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1399       and entry for T90 in genmake
1400    
1401    checkpoint29
1402     o packaged KPP and GM/Redi
1403    
1404    checkpoint28
1405     o Corrected initialization of hFacMin for difference vertical coordinates
1406     o Modified calculation of partial cell thickness to more robust algorithm
1407     o config_summary.F: replaced write_1D_... by write_0D_...
1408       read_write.F: added subroutines write_0D_...
1409     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1410       included some initialisations required for TAMC.
1411     o routine calc_isoslopes: modified sqrt computation to make it
1412       differentiable for zero argument.
1413     o routines dynamics, impldiff:
1414       included store directives and tape key computations required for TAMC.
1415     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1416    
1417    checkpoint27
1418     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1419       formulation works properly with variable resolution.
1420     o restructured the calling tree between the_model_main() and dynamics()
1421     o split initialise() into initialise_fixed() and initialise_varia()
1422     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1423       in new routine ini_psurf()
1424    
1425    checkpoint26
1426     o moved some #ifdef in optional routines to encompass everything
1427       except the argument declarations. This was using up some memory.
1428     o fixed macros like _ADT to work with both versions of Linux cpp
1429     o cleaned up some unused and uninitialized variables
1430       (helps when debugging with strict compile options)
1431     o split up CPP_EEOPTIONS.h into options and macros
1432       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1433     o patch for 2 processor JAM mode
1434    
1435    checkpoint25
1436     o updates for OBCs and NH
1437     o dramatically reduced memory usage
1438     o added "JAM" routines for use on Artic network
1439     o parameterization of convection by implicit vertical diffusion
1440     o added a diagnostic of convective index
1441     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1442       (this is was partly for OBCs and NH but also in anticipation of
1443        an explicit free-surface option)
1444     o initial state input files for U and V
1445    
1446    checkpoint24
1447     o Removed some spurious "REAL"s
1448     o Updated KPP to latest version from JPL
1449     o Added a COS(latitude) in horizontal viscosity
1450    
1451    checkpoint23
1452     o Added del^4 diffusion for salt and temperature
1453     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1454    
1455    checkpoint22
1456     o Made many small changes: implicit none, format(i5), etc...
1457     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1458    
1459    checkpoint21
1460     o Introduced new I/O package that supports direct-access records (mdsio.F)
1461     o Split-up mid-level I/O routines
1462     o Updated input data for experiments 0,1,2,4 and 5
1463     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1464    
1465    checkpoint20
1466     o Tidied up open-boundaries some more
1467     o Added non-hydrostatic code
1468     o Fixed some input data
1469     o Modified MPI start-up to work in "coupled" context.
1470    
1471    checkpoint19
1472     o Tidied up directory structure for verification experiments.
1473     o Added new code for open boundaries.
1474     o Corrected advective terms near boundaries.
1475     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1476     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1477     o Split default parameters out of ini_parms.F into set_defaults.F.
1478    
1479    checkpoint18
1480     o Further changes for optional code generation with
1481       CPP - ugh!
1482    
1483    checkpoint17
1484     o Beginning to incorporating modularity
1485       for supporting atmos. and ocean configs.
1486     o Small changes for TAMC complinace
1487     o New ultra simple test case. Barotropic box
1488       configuration "exp0".
1489    
1490    checkpoint16
1491     o Minor changes to exchange routines to support
1492       accumulation in reverse mode. Adjoint of an
1493       assignment is an addition.
1494     o Changes to support compilation by TAMC (LR(1)
1495       syntax) and by g77 under Linux ( 72 character
1496       limit ).
1497    
1498    checkpoint15
1499     Rewrote exchange routines to allow
1500     o General tile <-> tile connectivity.
1501     o TAMC reverse mode flag ( is this really needed? )
1502     o Variable width overlap and exchange region widths.
1503     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1504       shmput/shmget, VIA, SYSV shmem and every other cool
1505       communication method.
1506    
1507    checkpoint14
1508     Consistent isomorphism chages made. These allow dynamical core
1509     to support both pressure and meters as a vertical coordinate.
1510    
1511    checkpoint13
1512     Release which corrects global_max problem and a couple
1513     of KGM time-averaging diagnostic errors. Also contains
1514     a double-gyre experiment setup as well as the baseline
1515     4 degree global template. The double gyre template is
1516     organised to allow it to be applied automatically to
1517     the baseline configuration.
1518    
1519    branch-point-rdot
1520     A few tidy-ups have been made bt the real point of this
1521     check-point (excuse the pun) is to allow a branch to be
1522     made for the purposes of adding the rDot alterations.
1523     I don't want to commit the rDot to the main-trunk until
1524     we've actually tested it...
1525    
1526    checkpoint12
1527     Tidy up and added generic genmake script (formerly
1528     configure script).
1529     Released to testers.
1530    
1531    checkpoint11
1532     Re-arranged initialise() and introduced ini_vertical_grid()
1533     and ini_masks_etc().
1534    
1535    checkpoint10
1536     Introduced the configure script.
1537     Separated out the diags package.
1538     Added template for writing time-averages of tile/intermediate quantities.
1539     Updated SIZE.h in exp2 and made the data big-endian.
1540    
1541  checkpoint9  checkpoint9
1542   MPI fix. Filename changes (meta/data). salbin*y stuff.   MPI fix. Filename changes (meta/data). salbin*y stuff.
1543   General tidy-up.   General tidy-up.

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