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revision 1.8 by adcroft, Wed Jul 1 22:49:29 1998 UTC revision 1.251 by afe, Mon Jan 26 19:44:46 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 modfied mdsio_writefield.F to handle non-global files under exch2
7    o update AIM Cubed-Sphere exp (aim.5l_cs):
8      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
9    o update AIM Equatorial Channel exp:
10      use standard aim_v23 pkg and change the SST fields to be more realistic.
11    o globalFile now works with exch2
12    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
13      mon_vort3.F to make exch2 friendly with >1 tile per cube
14      face
15    o limit timeave output for hi-res integrations
16    
17    checkpoint52i_post
18    o removed CPP_EEOPTIONS.h from verification/*/code
19    o updated the tiling for global_ocean_pressure
20    checkpoint52i_pre
21    
22    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
23      the old pkg/aim).
24    
25    checkpoint52h_pre
26    o shortened offending lines in exch2_send_rx?.template
27    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
28    o genmake2: add build & execute test for NetCDF code
29    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
30      old grid files, moved CPP_EEMACROS.h to pkg/exch2
31    o added useSingleCPUIO flag to monitor.F and mon_out.F
32    o added temporary hack for sea-ice dynamics on the cube:
33      metric terms are ignored and it is assumed that
34      there is no sea-ice on cube faces 1, 2, 4, and 5.
35    
36    checkpoint52f_post
37    o added exch2 cube routines to pkg/exch2
38    o modified hs94.cs-32x32x5 to use it
39    o added new grid files to hs94.cs-32x32x5
40    checkpoint52f_pre
41    
42    checkpoint52e_post
43    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
44      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
45    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
46      to work with implicit vertical advection and AB ;
47    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
48    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
49     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
50    checkpoint52e_pre
51    
52    o fix bug in impldiff when Nr=1 or Nr=2.
53    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
54    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
55    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
56      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
57    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
58    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
59    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
60    
61    checkpoint52d_post
62    o re-tiled many expts to allow comparison in multi-processor mode
63      - updated output accordingly
64      - changed hs94.128x64x5 to use intial T from file rather than use the
65        random number generator
66    o add infrastructure in model routines for fizhi and gridalt packages
67    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
68    o changes to permit hi-res, cubed-sphere, configuration
69      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
70      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
71      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
72        of surface winds for the cube
73      (A verification experiment, based on global_ocean.cs32x15, but with
74       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
75       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
76       complete with example surface forcing files and matlab scripts to look
77       at the output and compare it with that of global_ocean.cs32x15.)
78    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
79       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
80       to conform to the common rule.
81    o check-in the first version of the coupler + interfaces for multi-components
82       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
83       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
84       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
85       - ocean and atmos. share the same horizontal grid (no interpolation).
86       - exchanges between component and coupler is done in forward_step
87    o new verification experiment, cpl_aim+ocn:
88       coupled ocean - AIM atmosphere on cs32 grid.
89    
90    checkpoint52d_pre
91    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
92    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
93    
94    checkpoint52c_post
95    o Fixing OPTIONS files for use of exf:
96      - ALLOW_ECCO not needed
97      - ECCO_CPPOPTIONS.h should not be included from
98        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
99        as has been the case in the past
100      - All cal/exf related options are currently set in
101        single header file. Should remain so until we
102        agree on a consistent new policy.
103    o Removed all CPP options for cal package.
104      cal has no more CPP options.
105    o modified STOREs in GAD_ADVECTION
106    o corrected key comp. for passkey
107    
108    checkpoint52b_post
109    o new version: "thsice" of thermodynamic sea-ice pkg:
110     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
111     - modify fluxes but do not change theta directly;
112     - light cleaning of bulk_force pkg (still needed with thsice).
113     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
114       + output_thsice.txt to test thsice & bulk_force pkgs.
115    o put back grid & coriolis monitor output.
116    checkpoint52b_pre
117    
118    o call "do_the_model_io" at the beginning (=> dump initial state)
119    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
120    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
121      (need info on NUMBER_OF_PTRACERS)
122    o missing PTRACERS headers in some routines
123    o default tamc.h in pkg/autodiff supposed to crash
124      to ensure proper customization
125    
126    checkpoint52a_post
127    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
128      - moved surfaceTendencyTice from pkg/seaice to main code
129      - subroutine FREEZE_SURFACE now limits only surface temperature
130        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
131        => new output.txt for global_ocean.cs32x15 & global_with_exf
132      - keep the old version of FREEZE for backward compatibility;
133        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
134      - corresponding modifs for TAF directives
135    o added surface flux output variables to TIMEAVE_STATVARS
136    o time-averaged output for pkg/ptracers
137    o fix problem with ECCO-related divided adjoint
138      snapshot file was missing some ad-variables,
139      but no warning issued by TAF
140    
141    checkpoint52a_pre
142    o some bug fixes for #undef REAL4_IS_SLOW
143    
144    checkpoint52 = ecco_c52_e35
145    o after testing adjoints of checkpoint51u_post
146    
147    checkpoint51u_post
148    o this is the post-merge tag of the ecco-branch
149      (needs another clean checkout and re-testing)
150    o various natl_box_adjoint configs and results
151      but no input fields
152    o obcs adjoint not yet merged!
153    o adding ECCO global 1x1 and 2x2 degree configs
154    o updated/extended some store directives for seaice
155    o pkg/ecco now containes ecco-specific part of cost function
156    o top level routines the_main_loop, forward_step
157      supersede those in model/src/
158      previous input data.cost now in data.ecco
159      (new namelist ecco_cost_nml)
160    o in ctrl/ cleaned some cross-dependencies and updated CPP options
161    
162    checkpoint51t_post
163    o this is the pre-merge tag of the ecco-branch
164    
165    checkpoint51s_post
166    o cleanup: removed various obsolete #define-s
167    o pkg/grdchk
168      - renamed 'ph-grd 3' to 'grad-res'
169      - merged from ecco-branch
170        (remaining bug fixes for obcs gradient checks)
171      - additional high-precision output for testreport
172        (grep for 'precision_grdchk_result')
173    
174    checkpoint51r_post
175    o cleaned up or removed CPP_OPTIONS.h files
176    o updated results for some of the tests to reflect the new
177      optfiles (-ieee: -O0 instead of -O3)
178    
179    checkpoint51q_post
180    o cd_code:
181      - moved cd_scheme.F -> cd_code_scheme.F
182      - separate read_checkpoint from cd_code_ini_vars.F
183      - separated cd_code part from write_checkpoint
184      - updated AD_SOURCE, generated .flow
185      - added CD_CODE_VARS.h to the_main_loop
186      - Moving cd_code specific store dir.s to pkg/cd_code
187    o ctrl package totally restructured
188      - pack/unpack now optional and decoupled from
189        xx_/adxx_ I/O
190      - ctrl_pack/unpack cleaned
191        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
192      - confined inclusion of AD_CONFIG.h to where necessary.
193    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
194    
195    checkpoint51p_post
196    o create initial cd_code package
197      - WARNING: the initialization of fields within packages
198        is broken because INI_FIELDS (where READ_CHECKPOINT is
199        called) is called *before* PACKAGES_INIT_VARIABLES.
200        This seems to be backwards since
201        1) its important to initially zero the entire field including
202           the "halo" region
203        2) zeroing needs to be done *before* reading pickup info
204           and the pickup call might or might not happen in any
205           particular run
206      - this needs an overhaul for R2
207    o cleanup verification/*/code/GMREDI_OPTIONS.h
208    o cleanup testreport
209    
210    checkpoint51o_post
211    o bringing AD-related verif's up to date with genmake2
212      - carbon/
213      - global_ocean.90x40x15/
214      - hs.94.1x64x5/
215      - (front_relax/ )
216    o (more) consistent directory structure for AD-related verif.'s
217    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
218    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
219    o bug fix in find_alpha.F for MDJWF:
220      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
221        change rho -> rho-rhoConst
222      - replace call find_rho to find_rhonum
223    o initialisation of rFlx extended to full array (required by TAF)
224      and shifted to thermodynamics
225    o removed PTRACERS.h in ptracers routine
226    o added surfacetendencyPtr to S/R parameter list pracers_forcing
227    o Correcting initialisations for fVerU, fVerV.
228    o helping TAF to recognize dependency on kUp for
229      fVerU, fVerV
230    o Replacing delZ by delR in pkg/ctrl/
231    checkpoint51o_pre
232    
233    o undid all of cp51 pending some cleanups and discussion
234    o added the [#include "AD_CONFIG.h"] statement to all files that need
235       it for adjoint/tl #defines
236     o re-worked the build logic in genmake2 to support AD_CONFIG.h
237     o removed tools/genmake since it no longer works
238    
239    checkpoint51n_post
240    o modifications to make FREEZE flux visible to pkg/kpp
241      - moved surfaceTendencyTice from pkg/seaice to main code
242      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
243      - subroutine FREEZE now limits only surface temperature
244        (this means new output.txt for global_ocean.90x40x15,
245         global_ocean.cs32x15, and global_with_exf)
246    o added surface flux output variables to TIMEAVE_STATVARS
247    
248    checkpoint51n_pre
249    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
250    o added [#include "AD_CONFIG.h"] to all files that use the following
251      defines:
252      - ALLOW_ADJOINT_RUN
253      - ALLOW_TANGENTLINEAR_RUN
254      - ALLOW_ECCO_OPTIMIZATION
255    
256    checkpoint51m_post
257    o incorporating changes to get TAMC/TAF working in genmake2
258      - added new TAMC/TAF targets to the Makefile
259      - various cleanups related to package handling
260      - these changes should have no impact on the forward model
261    
262    checkpoint51l_post
263    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
264     - faster algorithm for cal_addtime.F
265     - higher precision arithmetic, where needed
266     - pkg/exf *startdate variables changed from calendar date to
267       model integration time
268    
269    checkpoint51l_pre
270    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
271    o enable to apply restoring on S & T only in a latitude band.
272    o update output (external_forcing_surf modif. change truncation errors)
273       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
274    
275    checkpoint51k_post
276    o change default to: useNHMTerms=.FALSE.
277     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
278       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
279     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
280        exp1, ideal_2D_oce
281     - change data file of oceanic exp (leave the results unchanged for now)
282       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
283    o set gravitySign automatically according to the vertical coordinate used
284      (and change sign: back to "logical" value: +1 when R increases downward)
285    o added an include barrier to the default CPP_OPTIONS.h and
286      removed the #include "PACKAGES_CONFIG.h" from it
287    o fix a bug in mom_fluxform (from chk51j_post)
288    
289    checkpoint51j_post
290    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
291    o adjusted some flow directives (dynamics, thermodynamics)
292    o added cubed-sphere case to test cost function
293    o heckpoint_lev?_directives.h now include
294      pkg-specific directives, whenever those are enabled.
295    o Moving pkg-specific flow directives to corresponding pkg
296      Moving pkg-specific differentiation list to corresponding pkg
297      Moving pkg-specific checkpoint-lev storing to corresponding pkg
298      ---> conventions are
299           - pkg_ad.flow
300           - pkg_ad_diff.list
301           - pkg_ad_check_lev?_dir.h
302    
303    checkpoint51i_post
304    o merge of the branch-genmake2
305      - knowingly breaks the older genmake
306      - automatic generation of all ALLOW_${PKG_NAME} defines
307      - new testreport supersedes older testscript
308    o large number of package inclusion and header cleanups
309    checkpoint51i_pre
310    
311    o new output for adjoin of global ocean vector invariant
312    o fix for checkpoint of thermodynamic seaice and bulk_force
313    o Steph gchem various cleanups
314    
315    checkpoint 51h_pre
316    o fixed some single quotes
317    o modify gchem pkg to be more versatile
318    o modifications to clean up dic pkg
319    o add pkg/cfc
320    
321    checkpoint51g_post
322    o provide links for ARPACK and ADM*TLM
323    o start removing verification/vero/
324    o update AD-related stuff
325      (in particular some IF-statements in model/src/ routines)
326    o adding to verification/global_ocean.90x40x15/ adjoint of
327      vector invariant setup
328    
329    checkpoint51f_post
330    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
331    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
332      of tracer Green's fucntions for ocean inversion project.
333    
334    checkpoint51f_pre
335    o Added on-the-fly spatial interpolation capability
336        "USE_EXF_INTERPOLATION" to pkg/exf.
337      - This is a temporary Cartesian-grid hack until
338        the super-duper ESMF coupler becomes available.
339      - See verification/global_with_exf/README for usage example.
340      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
341        flags and modified pkg/seaice accordingly.
342    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
343        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
344        non-local transport term.
345    
346    checkpoint51e_post
347    o pkg/mom_vecinv:
348      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
349      - add time-ave diagnostic of vorticity advection.
350    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
351    o atmospheric geopotential: - include water vapor effect;
352                                - use p^kappa in p* scaling.
353    o land pkg: read initial state from files.
354    o AIM : add stratospheric drag in the upper level
355    
356    checkpoint51d_post
357    o change function ILNBLNK (=> last non-blank char.) to return zero
358      (instead of the string length) when the string. char is empty
359    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
360    o modif's to restore TAMC compatibility
361      - avoid "_d" constructs in PARAMETER declarations
362      - avoid interrupting lines by comment lines
363    o Use cluster local disks for purely local I/O
364      vs. globally visible disks needed for ctrl stuff
365      (merged from ecco-branch)
366      - new active_file_loc... and mdsio_..._loc routines
367      - affected packages: autodiff, ctrl, grdchk, mdsio
368    
369    checkpoint51c_post
370    o introducing integer flag debugLevel
371      - debLevZero: suppress all output
372      - debLevA: standard
373      - debLevB: equivalent to current debugMode=.TRUE.
374    o introducing pathname variable mdsioLocalDir for mdsio
375      that can be specified at runtime
376      (relevant for cluster I/O to local disk)
377    `
378    >>>checkpoint51b_post
379    adjoint of ptracers
380    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
381    o extended state in checkpoint_lev?, etc.
382    o alternative ctrl/cost with tr1 or ptracer
383    o new comlev1_bibj_ptracers
384    o new ptracers.flow
385    o made ptracers_forcing same as external_forcing_s
386    o added verification for adjoint with ptracers
387      - adm. grdchk fail so far
388      - tlm. grdchk OK
389      - checked tapelev/comlev recomputations: OK
390    <<<checkpoint51b_pre
391    
392    checkpoint51a_post
393    o added code for biogeochemistry package
394      - new pkgs: dic, gchem
395      - new subroutine in ptracers
396    o modify code for biogeo packages
397      - in model/src and pkg/ptracers
398    
399    checkpoint51
400    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
401      - autodiff, ctrl, exf, grdchk, seaice
402      kept separate packages
403      - cost, ecco, obcs
404    o updating verification/internal_wave, verification/lab_sea
405      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
406    
407    checkpoint50i_post
408    o Preparing next differentiable checkpoint and sync
409      of MAIN vs. ecco-branch
410      - 1st step: this one is differentiable
411      - 2nd step: next(! not this) checkpoint will have updated packages
412                  from ecco-branch)
413    
414    checkpoint50h_post
415    o new package "land": provide surface BC for AIM.
416    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
417    o AIM: use true log-P extrapolation for near surface temp (= as in
418        F.Molteni paper) ; update aim.5l_cs output.
419    o New variable in PARM03 for more flexible pickups
420    o somewhat cleaned package initialisation sequence for
421      ctrl/ cost/ ecco/ in packages_... routines
422    
423    checkpoint50g_post
424    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
425      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
426      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
427        made the default because of faster convergence than ADI
428    
429    checkpoint50f_post
430    o exf totally restructured
431      - replaced all exf_set_ routines by one generic exf_set_gen.F
432        and made sure it's still differentiable
433      - split exf_getffields.F into new exf_bulkformulae.F
434      - exf_inscal_/exf_outscal_ suffixes consistent with field names
435      - updated adjoint/makefile and relevant verif. accordingly
436    
437    checkpoint50f_pre
438     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
439          + change Evap over land. (update aim.5l_cs output)
440     o added missing .cvsignores and made uniform across expts
441     o changed configuration of tidal_basin_2d expt
442     o added pkg/debug functions for tracing code in fatal crashes
443     o tidied pkg/monitor to use MONITOR_OPTIONS.h
444     o new fn in pkg/monitor to stop model if solution grows too big
445     o removed lots of single quotes from comments
446    
447    checkpoint50e_post
448    o make KPP work with PTRACERS
449     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
450       nearly a copy of kpp_transport_s
451     - there is no analogue to SurfaceTendencyS, so I have to use
452       gPtr(of the surface layer) instead
453    o add a new platform SunFire+mpi (SunFire 15000) to genmake
454    checkpoint50e_pre
455    
456    checkpoint50d_post
457    o change kpp output from multiple-record state files to single-record state
458      files analogous to write_state.F
459    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
460      analogous to the cg2d-related output.
461    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
462      so that writing to internal file fn (with length 512) fails.
463    checkpoint50d_pre
464    
465    checkpoint50c_post
466    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
467    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
468    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
469    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
470    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
471    
472    checkpoint50c_pre
473    Merging from release1_p13:
474    o bug fix for pkg/seaice dynamic solver
475    o Added SEAICE_initialHEFF to pkg/seaice
476    
477    checkpoint50b_post
478    o store u*,v* in gU,V instead of in guNm1,gvNm1
479    o in order to put the momForcing out of the Adams-Bashforth:
480      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
481      to timestep.F
482    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
483    o re-generate output for highly sensitive test-exp:
484       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
485    
486    checkpoint50b_pre
487    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
488    o corrected CPP option mismatch in exf_Bulk... functions for case
489      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
490    
491    checkpoint50a_post
492    o Bug fix for merging between c50 and KPP.
493      ikey was passed from thermodynamics to kpp_calc via
494      common block rather than being recomputed in kpp_calc,
495      in contradiction with new key itdkey.
496      New key ikppkey created, and tamc.h headers updated.
497    
498    checkpoint50
499    - 2nd step of merge with ecco-branch:
500      merge changes in ecco-branch back into main trunk
501    - bug fix in find_alpha
502    - more storing in gmredi_calc_tensor.F, kpp_routines.F
503    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
504    - merged some sliced AD support routines
505    
506    checkpoint49
507    merged from ecco-branch:
508    o exf:
509      - Enable initialisation of forcing fields to constant
510        (runtime) values.
511      - in exf_getffields.F
512        Reduce i-/j-loop to interior domain, discarding overlaps.
513        That also fixes wrong TAF-key computations for key_1, key_2
514        with bulf formulae.
515      - exf_init.F modify #ifdef for exf_init_evap
516      - exf_getffieldrec.F, ctrl_getrec.F
517        The following INT-usages are not safe:
518          fldsecs  = int(fldsecs/fldperiod)*fldperiod
519          fldcount = int(fldsecs/fldperiod) + 1
520        and were modified.
521    o autodiff: checkpoint_lev...
522      - updated storing for bulk formulae (some arrays were missing)
523      - added state for seaice package
524      - synchronized with main branch
525    o DIVA:
526      Modif.s in
527      - the_main_loop.F
528      - the_model_main.F
529      and added cost_final_restore.F cost_final_store.F
530      o With these changes, it is possible to fully separate
531        the first forward run to compute the cost function (mdthe_main_loop)
532        and adjoint runs over individual DIVA intervals (adthe_main_loop)
533        into separate model executions.
534        This enables better tuning of DIVA to given queue sizes.
535      o Loss of cost function value in consecutive DIVA runs is
536        fixed by storing to 'costfinal' file.
537      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
538        beginning/end of adjoint integration is accounted for.
539      The current changes apply to TAF-1.4.26.
540      TAF has one remaining bug, requiring one manual change
541      (see MITgcm manual).
542    o cal: synchronized between MAIN and ecco-branch
543    
544    checkpoint48i_post
545    o Changes to restore differentiability of code w.r.t. previous tag
546      (mostly adding new routines to make list and replacing
547      pressure by totPhiHyd).
548    o Updated and merged grdchk package
549      - has both ADM and TLM checks
550      - works for single- and multi-proc.
551      - output cleaned
552      - worked successfully for parallel DIVA
553    o genmake:
554      - Adding -platform=SP4
555      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
556    o Modif. for DIVA:
557      ctrl_unpack should not be called in intermediate DIVA interval.
558      (similar thing would apply for active files such as
559      tbar, sbar, psbar, which should not be reinitialised;
560      only relevant for ecco-branch)
561    
562    checkpoint48h_post
563    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
564    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
565    o Added SEAICE_initialHEFF to pkg/seaice
566    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
567    
568    checkpoint48g_post
569    --- EOS:
570    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
571      store total Potential in totPhyHyd for diagnostics & EOS.
572    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
573    --- Pressure/geopotential gradient:
574    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
575    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
576      ( changes results of global_ocean_pressure )
577    o NLFS + z-coord.: add eta*Rho' contribution.
578    o accurate phiHyd when using interface-W at the middle between 2 centers
579     ( changes results of ideal_2D_oce )
580    o includes r* 2nd term in potential gradient.
581    
582    checkpoint48f_post
583    Merging from release1_p12:
584    o Modifications for using pkg/exf with pkg/seaice
585      - improved description of the various forcing configurations
586      - added basic radiation bulk formulae to pkg/exf
587      - units/sign fix for evap computation in exf_getffields.F
588      - updated verification/global_with_exf/results/output.txt
589    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
590      (SBO) core products, including oceanic mass, center-of-mass,
591      angular, and bottom pressure (see pkg/sbo/README.sbo).
592    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
593      to avoid negative values in shallow regions.
594      - updated verification/natl_box/results/output.txt
595      - updated verification/lab_sea/results/output.txt
596    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
597    o Added useSingleCpuIO option (see PARAMS.h).
598    o Updated useSingleCpuIO option in mdsio_writefield.F to
599      work with multi-field files, e.g., for single-file pickup.
600    o pkg/seaice:
601      - bug fix in growth.F: QNET for no shortwave case
602      - added HeffFile for specifying initial sea-ice thickness
603      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
604    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
605      kpp_transport_t.F, forward_step.F, and the_main_loop.F
606    o pkg/seaice:
607      - adjoint-friendly modifications
608      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
609    
610    checkpoint48e_post
611    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
612    o dynamics: change definition of computational domain & adapt mom_fluxform
613      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
614    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
615        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
616        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
617        global_ocean.90x40x15 global_with_exf global_ocean_pressure
618        inverted_barometer solid-body.cs-32x32x1
619      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
620    
621    checkpoint48d_post
622    o in preparation for r*:
623     a) use pre-computed gradient of hydrostatic potential:
624        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
625     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
626        => affects results of glob_oce_pressure (different truncation error)  
627      update output.txt of ideal_2D_oce & global_ocean_pressure
628    
629    checkpoint48d_pre
630    o in preparation for r*:
631      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
632      pass the 2 comp. of the grad. as arguments to momentum S/R.
633      but for the moment, only used if it does not change the results.
634    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
635    
636    checkpoint48c_post
637    Modifications in treatment of initial flux forcing controls
638    to avoid extra storing of flux fields.
639    
640    checkpoint48c_pre
641    o Added tidal_basin_2d experiment (currently 1D!)
642    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
643    
644    checkpoint48b_post
645    o r* coordinate added in #ifdef NONLIN_FRSURF block.
646     (modification to pressure gradient not yet implemented)
647    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
648      (for U & V) that are used for vertical advection of momentum.
649    
650    checkpoint48a_post
651    o In preparation for r*, use temp. array to compute vertical transport
652       in flux-form momentum pkg. => change results of few test-exp.
653      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
654                        lab_sea, natl_box & plume_on_slope
655    
656    checkpoint48
657    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
658    
659    checkpoint47j_post
660    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
661    o moved adexch from forward_step to addummy_in_stepping
662    o added exch in ctrl_map_...
663    o aveFreq.=0. at end of cost_final to avoid overwrite in
664      reverse checkpointing loop
665    o Yet more changes in gmredi:
666      * adgmredi_calc_tensor
667        avoiding all recomputation of gmredi_slope_limit
668      * adgmredi_x/y/rtransport
669        added flag for excessive storing to avoid recomp. of
670        u/v/rtans, dTdx/y/z
671        -> this is not really necessary and very memory-consuming
672      * adgmredi_slope_psi:
673        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
674      * gmredi_slope_limit
675        re-activated full calculation of taperfct for case 'ac02'
676    o updating verification/ adjoints of carbon, global_ocean.90x40x15
677    
678    checkpoint47i_post
679    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
680    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
681      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
682    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
683    o gmredi: fix few bugs.
684    
685    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
686    This will be a good checkpoint to plug into the ecco-branch.
687    o few modif.'s to get latest version adjointed
688      (mainly kick out code in ini_linear_phisurf)
689    o modif's to run adjoint with exactConserv
690    o case GM_BOLUS_ADVEC should be cleaned
691      S/R gmredi_slope_psi should be cleaned
692    o verification/carbon now has exactConserv=.TRUE.
693    
694    checkpoint47g_post
695    o time-average AIM output: becomes independent from statvars time-average
696      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
697    o After TAF bug fix:
698      Tested adjoint of gmredi package.
699      Tests were done with checkpoint47 rather than with latest
700      checkpoint47f_post since the latter is broken for the adjoint
701      verification/carbon/ contains both ADM and TLM gradient checks.
702    Here they are, before they get changed/lost/stolen.
703    Mostly modif.'s to fix numerical sensitivities.
704    Gradient checks OK for
705    - GM_taper_scheme:
706      * clipping
707      * ac02
708      * linear
709      * glw91
710      * dm95
711      * ldd97
712    - GMREDI_OPTIONS:
713      * GM_VISBECK_VARIABLE_K
714      * GM_NON_UNITY_DIAGONAL
715      * GM_EXTRA_DIAGONAL
716      * GM_BOLUS_ADVEC
717    in conjunction with data.gmredi parameters to be checked in
718    in a few minutes under verification/carbon/code/
719    
720    checkpoint47f_post
721    Merging from release1_p10:
722    o modifications for using pkg/exf with pkg/seaice
723      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
724        and SEAICE_EXTERNAL_FLUXES
725      - pkg/exf CPP options EXF_READ_EVAP and
726        EXF_NO_BULK_COMPUTATIONS
727      - usage examples are Experiments 8 and 9 in
728        verification/lab_sea/README
729      - verification/lab_sea default experiment now uses
730        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
731    
732    checkpoint47e_post
733    o created a tag prior to creating a branch
734    
735    checkpoint47d_post
736    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
737      at the bottom boundary had an erroneous half slip boundary condition
738    o added bottom drag and no slip boundary condition capabilities to
739      oceanic pressure coordinates code
740    o added new verification experiment global_ocean_pressure, this experiment is
741      also described in the tutorial section of the manual
742    checkpoint47d_pre
743    
744    checkpoint47c_post
745    o Added a verification experiment for a global cubed-sphere ocean run
746      -  verification/global_ocean.cubed32x32x30
747      -  uses pkg/therm_seaice and pkg/bulk_forcing
748    
749    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
750    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
751      when using P-coordinate; only implemented for atmospheric config.
752    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
753      NOTES: requires option NONLIN_FRSURF to be "#define".
754    o update advect_xz/results/output.txt (left from checkpoint44g_post)
755    
756    checkpoint47b_post
757    Merging from release1_p9:
758    o pkg/seaice
759      - removed GOTO's and added taf directives
760      - double precision constants to reduce the g77 (Linux)
761        to F77 (SGI) differences reported in release1_p8
762    o tools/genmake
763      - added SGI options
764    o verification/testscript
765      - updated to that of checkpoint47a_post
766    o verification/global_ocean.90x40x15/input/eedata
767      - modified for SGI f77 compatibility
768    o verification/lab_sea
769      - added description of sea-ice model
770      - added missing matlab routines
771      - added test of thermodynamics parallelization
772    
773    checkpoint47a_post
774    o new pkg: aim_v23
775     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
776       for now, keep the same surface forcing as before.
777     - Part-Cell implemented into AIM; check that Heat & Water are conserved
778     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
779     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
780    o add diagnostic of surface correction term in monitor output
781    
782    o bulk_force and therm_seaice
783    - Two packages:  bulk_force (Bulk forcing)
784      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
785    - Earlier integration from Stephaine Dutkiewicz
786      and Patrick Heimbach.
787    - Two ifdef statements for compile time,
788       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
789    
790    checkpoint47
791    differentiable version of checkpoint46n_post
792    o bug fix in quasihydrostaticterms
793    o * "clean" adjoint code (in terms of extensive recomputations)
794        can now be obtained for all GMREDI options (i.e. for
795        - GM_VISBECK_VARIABLE_K
796        - GM_NON_UNITY_DIAGONAL
797        - GM_EXTRA_DIAGONAL
798        - GM_BOLUS_ADVEC )
799      * However, wrong gradient check problem remains unsolved.
800      * New CPP options have been introduced for different
801        tapering schemes
802    o external_fields_load now part of differentiation list
803    o pressure needs multiple storing;
804      would be nice to have store_pressure at beginning or
805      end of forward_step, e.g. by having phiHyd global (5-dim.)
806      (NB: pressure is needed for certain cases in find_rho,
807      which is also invoked through convective_adjustment).
808    o recomputations in find_rho for cases
809     'JMD95'/'UNESCO' or 'MDJWF' are OK.
810    o #define ATMOSPHERIC_LOADING should be differentiable
811    o ini_forcing shifted to begining of initialise_varia
812    o Incorporating QNVS line search routines into MITgcm
813      (this is separate code, and therefore not under pkg)
814      lsopt/, optim/
815    o Updated verification/carbon/
816      - #define GM_VISBECK_VARIABLE_K
817      - GM_taper_scheme    = 'ldd97'    
818    
819    checkpoint46n_post
820    Merging from release1_p8:
821    o verification/natl_box:
822      updating new external_fields_load routine
823    o New package: pkg/seaice
824      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
825      The sea-ice code is based on Hibler (1979-1980).
826      Two sea-ice dynamic solvers, ADI and LSR, are included.
827      In addition to computing prognostic sea-ice variables and diagnosing
828      the forcing/external data fields that drive the ocean model,
829      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
830      The implied surface heat flux is then stored in variable
831      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
832      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
833      non-local transport term.  Because this call precedes model
834      thermodynamics, temperature under sea-ice may not be "exactly" at
835      the freezing point by the time theta is dumped or time-averaged.
836      N.B.: fairly large differences in accuracy occur across
837            different platforms/compilers; comparison between
838            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
839            generated output gives:
840       T           S           U           V
841      C D M    c        m  s        m  s        m  s        m  s
842      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
843      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
844      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
845    
846      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
847    o GAD:
848      - generated new common blocks to account for call of
849        same gad routines with differing traceridentities
850        (needed to modify tracerIdentity indices in GAD.h)
851      - generated separate common blocks for case useCubedSphereExchange
852        (Department of Futurology)
853      - parameter lists to gmredi_?transport: added tracerIdentity
854      - added new key indices to tamc.h
855    o external_fields_load:
856      - added this routine to TAF list
857      - needed to make some common blocks global and additional storing
858        along the same lines as exf package (checkpoint_lev?_directives.h)
859    o exf:
860      updated external forcing package
861      - bug fixes carried over from ecco-branch
862        (missing OBCS_OPTIONS.h in two routines)
863      - enable easy to use "no forcing".
864      - added exf I/O for atmospheric loading
865      - added exf I/O for runoff data
866      - transfered scaling between exf <-> MITgcm to exf namelist
867    o Adding new verification experiment global_with_exf.
868      This verification experiment is almost identical to the
869      global_ocean.90x40x15 experiment, except that it uses
870      the exf (and cal) package instead of the
871      external_fields_load routine (cf README file).
872    
873    checkpoint46m_post
874    o modified testscript to return -- when there are no lines of "%MON" output
875    o added new flag "quasiHydrostatic" for QH mode
876      and new routine quasihydrostaticterms()
877    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
878      New routine: mom_u_coriolis_nh()
879    o fixed sign of non-hydrostatic metric terms in u and v equations.
880      Depend on correct sign of gravitySign.
881    o added work.pc* to .cvsignore in aim directories using ifc
882    o introduced flag for controllin non-hydrostatic metric terms
883    o removed gravitySign from PARM04
884    o switched to g77/ifc from pgf77 in aim experiments
885    
886    checkpoint46l_post
887    o made convective adjustment work with pressure coordinates:
888     - changed the direction of k-loop in convective_adjustment.F for the
889       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
890     - adjusted the reference pressure k-index in convective_adjustment.F
891     - adjusted the convection condition in convect.F (in analogy to
892       calc_ivdc.F)
893     - convective_adjustment no longer computes anything on the halos
894     - removed the warnings about negative salinity from find_rho.F and
895       find_alpha.F; instead the new routine look_for_neg_salinity, called
896       at the beginning of find_rho, find_alpha, and find_beta, does a
897       check of the entire slice, if CPP-option
898       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
899    checkpoint46l_pre
900    
901    checkpoint46k_post
902    o fixed the verification/global_ocean.90x40x15 experiment:
903     - new bathymetry (the world according to A., JMC, and M.)
904     - new initial fields and forcing fields (*.bin files)
905     - new POLY3.COEFFS (for the next release one should switch to a full
906       equation of state: JMD95P or MDJWF)
907     - fixed several errors and redundancies in the data file
908     - experiment uses looped cells
909     - added matlab directory with diagnostic scripts for plotting of output
910    
911    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
912     - read AIM physics parameters from a file (data.aimphys)
913     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
914    
915    checkpoint46j_post
916    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
917    o move wVel computation at the end of the time step, in S/R integr_continuity
918    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
919    o update timeave pkg for wVel diagnostic.
920    checkpoint46j_pre
921    
922    checkpoint46i_post
923    o Clean up AIM package (and keep the results unchanged):
924      include CPP_OPTION and use IMPLICT NONE in all routines ;
925      declare all the variables _RL ; use _d 0 for all numerical constants.
926      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
927    
928    checkpoint46h_post
929    o cleaned up the use of rhoNil and rhoConst.
930      - rhoNil should only appear in the LINEAR equation of state, everywhere
931        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
932        and the dynamical equations are all divided by rhoConst
933    o introduced new parameter rhoConstFresh, a reference density of fresh
934      water, to remove the fresh water flux's dependence on rhoNil. The default
935      value is 999.8 kg/m^3
936    o cleanup up external_forcing.F and external_forcing_surf.F
937      - can now be used by both OCEANIC and OCEANICP
938    checkpoint46h_pre
939    
940     Added code to convert surface volume flux (fresh water) into
941     a mass flux when using P coordinates in the ocean (OCEANICP).
942     Note: It assumes you have set rho0=rhoConst=density of fresh water.
943    
944    checkpoint46g_post
945    o Include a new diagnostic variable phiHydLow for the ocean model
946      - in z-coordinates, it is the bottom pressure anomaly
947      - in p-coordinates, it is the sea surface elevation
948      - in both cases, these variable have global drift, reflecting the mass
949        drift in z-coordinates and the volume drift in p-coordinates
950      - included time averaging for phiHydLow, be aware of the drift!
951    o depth-dependent computation of Bo_surf for pressure coordinates
952      in the ocean (buoyancyRelation='OCEANICP')
953      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
954        Theta, Salinity, and Pressure in the parameter list. This routine is
955        presently contained in find_rho.F. This routine does not give the
956        correct density for 'POLY3', which would be a z-dependent reference
957        density.
958    o cleaned up find_rho
959      - removed obsolete 'eqn' from the parameter list.
960    o added two new verification experiments: gop and goz
961      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
962    checkpoint46g_pre
963    
964    checkpoint46f_post
965    o Enable tangent linear (forward mode) gradient checks:
966      - extended active file handling to g_... files
967      - added TANGENT_SIMULATION to theSimulationMode
968      - extended grdchk package accordingly
969    o added tangent linear setup in verification/carbon/code_ftl
970    o added adjoint setup in verification/front_relax/code_ad
971    
972    checkpoint46e_post
973    o Added new equation of state -> MDJWF
974      - EOS of McDougall et al., 2002, JAOT, submitted
975      - caveat: the equation of state is only valid for a smaller (more
976        realistic?) range of values than JMD95P/Z and UNESCO
977      - added masks to the calculation of pressure in store_pressure
978      - added more check values for density in check_eos (ini_eos.F), some of
979        the old check values are out of the range of the MDJWF-eos, so don't
980        expect perfect matches for those
981    checkpoint46e_pre
982    
983    checkpoint46d_post
984    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
985      'OCEANICP', also initialised field pressure correctly in ini_eos in the
986      case of pressure coordinates. eosType='JMD95Z' in
987      combination with buoyancyRelation='OCEANICP' now causes an error.
988    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
989      in find_alpha/beta.
990    checkpoint46d_pre
991    
992    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
993      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
994    
995    checkpoint46c_post
996    o Changes necessary for ocean in p-coordinates
997     -  Added new buoyancy relation = 'OCEANICP'
998     -  Added new parameters = gravitySign (this used to be contained inside
999        the factor dRdZ which I added when we first switched to R coordinates).
1000     X GM/Redi is not compatible (yet)
1001     X bottom drag and no-slip need to be debugged.
1002    checkpoint46c_pre
1003    
1004    checkpoint46b_post
1005    o Added new equation of state -> JMD95Z and JMD95P
1006      - EOS of Jackett and McDougall, 1995, JAOT
1007      - moved all EOS parameters into EOS.h
1008      - new routines ini_eos.F, store_pressure.F
1009    o Added UNESCO EOS, but not recommended because it requires
1010      in-situ temperature (see JMD95)
1011    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1012      unesco.f to be used with POLY3
1013    checkpoint46b_pre
1014    
1015    checkpoint46a_post
1016    o Added (atmospheric) pressure loading
1017      - new field in FFIELDS.h, etc...
1018      - new cpp flag ATMOSPHERIC_LOADING
1019    o Changed hFacC to _hFacC in calc_phi_hyd.F
1020    o Added SHORTWAVE_HEATING to some files for consistency
1021    checkpoint46a_pre
1022    
1023    checkpoint46
1024    further merges from release1_p5
1025    o new ctrl package
1026      - adopted from ECCO environment to enable optimization
1027      - added Eliassen Palm fluxes to controls
1028    o added Eliassen Palm flux controls to gradient check package
1029    o cost package
1030      - Compatible with new ctrl package
1031      - added Eliassen Palm cost hooks
1032      - modif's of existing cost functions
1033    o Adjoint-related bug fixes in kpp:
1034      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1035      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1036    o autodiff package
1037      - flow directives:
1038        + new for S/R do_the_model_io
1039        + enhanced for S/R checkpoint
1040        + new gmredi.flow
1041      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1042        disable adcommon.h/g_common.h by default.
1043      - fixed problem for adjoint of global_max
1044    o modified verification/carbon/
1045    o New setup for adjoint of global_ocean
1046    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1047    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1048    o incorporated hooks for sponge layer code (external_forcing.F)
1049    
1050    checkpoint45d_post
1051    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1052    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1053      (affects plume_on_slope "cg2d" output)
1054    o add new parameter deltaTfreesurf for free-surface time stepping
1055    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1056    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1057    o change phiMin in exp1 (to agree with documentation)
1058    o add new flags:
1059     - T,S forcing inside/outside Adams-Bashforth
1060     - turn off temp,salt advection and/or forcing
1061     - for each tracer, define internal flag for multiDimAdvection & A-B
1062    o monitor: change definition of KE to check conservation of Energy
1063    
1064    checkpoint45c_post
1065    o Removed f90 comments ("!")
1066    o Modified initialisations to enable exf package for MITgcm
1067      (without invoking ECCO_PACKAGE).
1068    o modifications to gradient check package (Martin Losch)
1069      - enable centered differences
1070      - modified format of standard output
1071    
1072    checkpoint45b_post
1073    o cleaned exchange calls in cg2d
1074    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1075    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1076      to configure barotropic setup (Martin Losch)
1077    o moved some initialisations within bi,bj loop in dynamics
1078      (TAF flow dependency)
1079    o in initialise_varia, moved call packages_init_variables
1080      before convective_adjustment_init
1081      (corresponding adjustment of TAF tape initialisation).
1082    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1083    
1084    checkpoint45a_post
1085    o compute Rho over the whole domain (extend iMin,jMin indices)
1086    o specific exchange for X-slice domain (case Ny=1)
1087    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1088    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1089    
1090    checkpoint44h_post = checkpoint45
1091    o Fix to restore differentiability:
1092      place at which packages_init_variables is called in
1093      initialise_varia is crucial for reverse control flow.
1094    o modifications in GMRedi to enable stable adjoint
1095      (corresponding modif's in thermodynamics, dynamics)
1096    o added missing hook for sponge layer code in external_forcing
1097    o modified test cost functions
1098    o storing in gad_advection (plus removal of write(0,*)!
1099    o missing headers TR1.h added in convective_adjustment routines
1100    o errorMessageUnit set non-equal zero in eeboot
1101      (conflict on some platforms, e.g. IBM SP3)
1102    o modified carbon verif.
1103    
1104    checkpoint44h_pre
1105    o vertical grid option: allow to put the Interface at the middle between
1106      2 cell-centers ; replace delZ in pkg/kpp by drF.
1107    o GM Advective form: Tracers are advected using the residual transport (=
1108      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1109    
1110    checkpoint44g_post
1111    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1112      results) ; ifdef missing in thermodynamics.F
1113    
1114    checkpoint44f_pre,checkpoint44f_post
1115    o added PTRACERS package
1116      This allows an arbitrary number of passive tracers to be integrated
1117      forward simultaneously with the dynamicaly model.
1118      + Implemented so far:
1119        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1120        - I/O and checkpointing
1121        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1122      + Not implemented so far:
1123        - KPP
1124        - OBCS
1125      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1126        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1127        line in data.pkg.
1128      + This package is disabled by default since it increases storage.
1129    
1130    
1131    o testscript: added -cleanup option
1132    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1133                 b) enable to filter 2D fields.
1134    
1135    checkpoint44e_pre,post
1136    o re-wrote convective adjustment to use pre-calculated weights
1137      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1138      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1139      Original calls to convect() still in place.
1140    
1141    chkpt44d_pre,post
1142    o added missing EXCLUDE_MONITOR flags
1143    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1144      (incompatible typ in MIN/MAX expressions caused problems
1145      on IBM SP3)
1146    o in genmake added variable MAKEDEPEND
1147      plus resetting for case SunOS
1148    o added timer_stats.c routine for IBM SP3
1149    o removed variables in dynamics
1150    !!! I forgot to create tag chkpt44d_pre !!!
1151    !!! But chkpt44d_pre = chkpt44c_post    !!!
1152    
1153    o real fresh water flux implemented with non-linear free-surface.
1154    
1155    chkpt44c_pre,post
1156    o few fix (mask in shap_s2, EmPmR in external_field_load,
1157      USE_NATURAL_BCS in solve_for_P);
1158    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1159    
1160    checkpoint44b_pre/_post
1161    o merge of relevant stuff from the ecco-branch:
1162      - genmake: removed $S64 overwrite for case SunOS
1163      - pkg/exf: update and corrections for field swapping and obcs
1164      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1165                  harmonized between ECCO and MITgcm
1166      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1167                      updated checkpointing_lev... lists for obcs
1168      - model/src: minor changes in forward_step, plot_field
1169                   added directive for divided adjoint in the_main_loop
1170      - pkg/mdsio: added mdsio_gl_slice
1171    
1172    o check parameters & config (chkpt44a_pre,post)
1173    o OBC and NonLin_FrSurf.
1174    
1175    checkpoint44
1176    o fix bug in mom_vi_del2uv
1177    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1178    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1179    o update AIM experiments (NCEP input files)
1180    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1181    o added some stuff for AD
1182    
1183    checkpoint43
1184    o added two new advection tests
1185    o added global 4x4 degree ocean test
1186    o added test of H&S94 with free surface on cube
1187    o some final mods for gradient check, adjoint,...
1188    
1189    checkpoint42
1190      Fixed AD-related problems:
1191    o Store directives up-to-date with re-arranged Adams-Bashforth
1192      (mainly thermodynamics.F)
1193    o New store directives for multi-dim. advection schemes
1194      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1195      * new common block and key passkey
1196      (mainly gad_advection.F)
1197    o Modified store directives for split of dynamics/thermodynamics
1198      for the case ALLOW_KPP
1199    o Cleaned argument list for timestep_tracer.F
1200    
1201    checkpoint41
1202    o re-formatted/added comments in prologues of key subroutines
1203      to work with protex
1204    
1205    checkpoint40
1206    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1207    o added FLT (floats) package from Arne along with demo. experiment
1208    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1209      implementation of forward-in-time forcing terms
1210    o more mods for non-linear free-surface including new variable
1211    o modified multi-dim method to work on cube
1212    o bug fix in KPP (from DM)
1213    
1214    checkpoint40pre9
1215    o added DST advection schemes
1216    o fix MPI bug on SGI's
1217    o modifications for non-linear free-surface
1218    o fixed conditionals for fixed flow/passive tracer only mode
1219    o added tension/strain form of stress tensor
1220    o changes to commenting of arguments for TAF/TAMC
1221    o added/updated many matlab scripts
1222    o added multi-dimensional advection method for tracers
1223      
1224    checkpoint40pre8
1225    o new package rw/
1226      Added method for dumping intermediate local arrays:
1227      mdsio_writetile - same as mdsio_writefield except works from inside
1228                        bi,bj loop
1229      mdsio_writelocal - same as mdsio_writetile except works for local
1230                         arrays
1231      write_local_r? - higher-level wrapper for mdsio_writelocal
1232      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1233      Example given at end of mom_vecinv.F that dumps some local arrays.
1234    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1235      control flux-form versus vector invariant code.
1236      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1237      or genmake -DISABLE ...
1238    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1239      (additional storing is now needed for case vecinv;
1240      currently nothing implemented to switch this storing off
1241      in case fluxform is used since no CPP flag available).
1242    
1243    checkpoint40pre7
1244    o bug fix in dynamics.F
1245      calc_viscosity called before k=1,Nr loop.
1246    o added some #ifdef's ALLOW_PASSIVE_TRACER
1247    o cleaned initialisations in ctrl_map_ini
1248      related to TAF
1249    
1250    checkpoint40pre6
1251    o split dynamics into thermodynamics & dynamics
1252    o corresponding split of calc_diffusivity into
1253      calc_diffusivity, calc_viscosity
1254      (kpp_calc_diff, kpp_calc_visc).
1255    o Added diffkr, kapgm to control variables
1256    o bug fix in gmredi_slope_limit for ldd97
1257    
1258    checkpoint40pre5
1259    o proper initialization of Adams-Bashforth time stepping
1260      + uses forward step for very first step of model (iter=0)
1261    o re-generated *all* output since almost all output is modified by this
1262      change (sorry but we've been putting this one off for about 2 years)
1263      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1264        *not* regenerated since they are already out of date and I don't
1265        want to create the impression that they are suddenly working.
1266    o removed KAP stuff for DEC's
1267    o modified/added many .cvsignore files in */code and */input
1268    o added new expt "solid-body.cs-32x32x1"
1269      + this uses an alternative form of ini_curvilinear_grid.F which
1270        is not necessarily any better than the current one...
1271    
1272    checkpoint40pre4
1273    o added re-initialisations of utrans,vtrans,rtrans in
1274      calc_common_factors which are crucial for TAF.
1275    o extended iMin,jMin range for calc_common_factors,
1276      calc_diffusivity
1277    o added option ALLOW_PASSIVE_TRACER
1278    o a few minor updates and fixes
1279    
1280    checkpoint40pre3
1281    o created calc_gtr1.F for gad package
1282    o split the_main_loop and re-introduced forward_step
1283    o some recomputations of nIter0 for TAMC
1284    
1285    checkpoint40pre2
1286    o Updated to latest branch of AJA, JMC
1287    o Added gradient check package
1288    o Added routines for passive tracer handling
1289    o Added carbon sequestration sensitivity experiment
1290    
1291    checkpoint39
1292     o Modifications and fixes to support TAMC
1293       (mainly missing or wrong directives)
1294     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1295       in addummy_in_stepping
1296     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1297     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1298     o Included following packages:
1299       cal: calendar
1300       exf: external forcing
1301       ecco: essential routines to control use of cal, exf
1302             (NB: this is not the full ECCO environment)
1303     o disabled some packages by default in genmake
1304    
1305    checkpoint38
1306     o see notes_c37_adj.txt
1307     o corrected wrong layer index in external_forcing_t
1308     o replaced the_main_loop/forward_step by the_main_loop
1309     o removed forceoutput from write_state
1310       (replaced criteria for initial/final state)
1311     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1312    
1313    checkpoint37
1314     o mdsio.F routine split and packaged in pkg/mdsio
1315       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1316        used unless genmake -disable=mdsio)
1317     o allow a more precise surface-geopotential gradient for the atmosphere
1318       taking into account the change in space of Alpha (=1/rho) at the surface.
1319     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1320       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1321     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1322       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1323       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1324     o Time-Average diagnostics defined as a pseudo package "timeave".
1325     o pickup files : old pickup (before c35) did not work with new code (c35
1326       and after) unless activating 2 commented lines in initialise-varia.
1327     o Non-Hydrostatic pickup file Pb fixed.
1328     o bug with Rigid-lid version (since c35) fixed.  
1329    
1330    checkpoint36
1331     o implement Crank-Nickelson barotropic time-stepping
1332     o recover Time-Average diagnostics
1333     o fix Pb in checkpoint (PR#19)
1334     o AIM become a standard package ; clean unused CPP_kees
1335    
1336    checkpoint35
1337     o subtantial rewrite of dynamics.f
1338     o allows staggered time-stepping
1339     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1340     o added bottom drag (linear + quadratic)
1341    
1342    checkpoint34
1343     o Modified exchange routines for correct reverse simulation.
1344     o Added verification output to comply with bug fix in impldiff.F
1345       as of c33 (exp2, natl_box).
1346     o Corrected store directives in dynamics.F
1347     o Corrected array boundaries in impldiff.F
1348     o Corrected array dimensions in gmredi.
1349       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1350     o Added routine GLOBAL_SUM_INT to global_sum.F
1351     o Added mdsio_gl.F for ECCO purposes.
1352    
1353    checkpoint33
1354     o Fixed bug in lower BC in impldiff.F
1355     o Fixed confusion about units of forcing arrays in FFIELDS.h
1356       namely Fu,Fv,Qnet,Qsw,EmPmR:
1357       - Removed verification/natl_box/code/external_fields_scale.F
1358         (did not differ from that in model/src)
1359       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1360         (see FFIELDS.h for description)
1361       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1362         kpp_calc.F and kpp_transport_t.F
1363       - Removed model/src/external_fields_scale.F and calls to it
1364       - verification/natl_box uses flux data with "atmospheric" sign so
1365         a special version of external_fields_load.F is used to
1366         change the data as it's read in. This way, the arrays
1367         have the right units and signs at all times tha a user could
1368         possibly use them.
1369     o Corrected genmake to delete a temporary file during configuration
1370    
1371    checkpoint32
1372     o Scaling of forcing fields moved from external_forcing.F to
1373       external_fields_scale.F, called directly after loading fields.
1374     o Surface relaxation terms added to surface tendency fields in
1375       extra subroutine.
1376     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1377       fields.
1378     o Changes in GMRedi to comply with packaging structure.
1379     o Modifications and bug fixes in KPP package.
1380     o Verification experiment for KPP added (verification/nat_box/)
1381    
1382    checkpoint31
1383     o Packages interface brought in line with defined standard
1384       -> new routines packages_...F
1385       -> changes in initialise_fixed.F, initialise_varia.F
1386       -> enables initialisation interface for ECCO package
1387     o Rescaling of external forcing fields immediately after read
1388       (removed from external_forcing.F)
1389       -> new: surface_fields_scale.F
1390       -> affects ini_foorcing.F, external_fields_load.F
1391     o Computation of surface tendencies before tendency updates.
1392       -> new: external_forcing_surf.F
1393     o Change of variable names useGMRedi, useKPP, useECCO
1394     o Further changes in dynamics.F, impldiff.F for TAMC
1395     o Tested for experiments 0, 2, 4.
1396       - not yet tested for GMRedi.
1397       - not yet tested for KPP.
1398    
1399    checkpoint30
1400     o Updates for OBCs
1401     o New experiment for test OBCs (internal_wave)
1402     o New output.txt in verification/exp4/results/
1403     o Updates for KPP: calculation of viscosity corrected, new variables
1404       kpp_dumpFreq and kpp_taveFreq
1405     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1406       and entry for T90 in genmake
1407    
1408    checkpoint29
1409     o packaged KPP and GM/Redi
1410    
1411    checkpoint28
1412     o Corrected initialization of hFacMin for difference vertical coordinates
1413     o Modified calculation of partial cell thickness to more robust algorithm
1414     o config_summary.F: replaced write_1D_... by write_0D_...
1415       read_write.F: added subroutines write_0D_...
1416     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1417       included some initialisations required for TAMC.
1418     o routine calc_isoslopes: modified sqrt computation to make it
1419       differentiable for zero argument.
1420     o routines dynamics, impldiff:
1421       included store directives and tape key computations required for TAMC.
1422     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1423    
1424    checkpoint27
1425     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1426       formulation works properly with variable resolution.
1427     o restructured the calling tree between the_model_main() and dynamics()
1428     o split initialise() into initialise_fixed() and initialise_varia()
1429     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1430       in new routine ini_psurf()
1431    
1432    checkpoint26
1433     o moved some #ifdef in optional routines to encompass everything
1434       except the argument declarations. This was using up some memory.
1435     o fixed macros like _ADT to work with both versions of Linux cpp
1436     o cleaned up some unused and uninitialized variables
1437       (helps when debugging with strict compile options)
1438     o split up CPP_EEOPTIONS.h into options and macros
1439       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1440     o patch for 2 processor JAM mode
1441    
1442    checkpoint25
1443     o updates for OBCs and NH
1444     o dramatically reduced memory usage
1445     o added "JAM" routines for use on Artic network
1446     o parameterization of convection by implicit vertical diffusion
1447     o added a diagnostic of convective index
1448     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1449       (this is was partly for OBCs and NH but also in anticipation of
1450        an explicit free-surface option)
1451     o initial state input files for U and V
1452    
1453    checkpoint24
1454     o Removed some spurious "REAL"s
1455     o Updated KPP to latest version from JPL
1456     o Added a COS(latitude) in horizontal viscosity
1457    
1458    checkpoint23
1459     o Added del^4 diffusion for salt and temperature
1460     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1461    
1462    checkpoint22
1463     o Made many small changes: implicit none, format(i5), etc...
1464     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1465    
1466    checkpoint21
1467     o Introduced new I/O package that supports direct-access records (mdsio.F)
1468     o Split-up mid-level I/O routines
1469     o Updated input data for experiments 0,1,2,4 and 5
1470     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1471    
1472    checkpoint20
1473     o Tidied up open-boundaries some more
1474     o Added non-hydrostatic code
1475     o Fixed some input data
1476     o Modified MPI start-up to work in "coupled" context.
1477    
1478    checkpoint19
1479     o Tidied up directory structure for verification experiments.
1480     o Added new code for open boundaries.
1481     o Corrected advective terms near boundaries.
1482     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1483     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1484     o Split default parameters out of ini_parms.F into set_defaults.F.
1485    
1486    checkpoint18
1487     o Further changes for optional code generation with
1488       CPP - ugh!
1489    
1490    checkpoint17
1491     o Beginning to incorporating modularity
1492       for supporting atmos. and ocean configs.
1493     o Small changes for TAMC complinace
1494     o New ultra simple test case. Barotropic box
1495       configuration "exp0".
1496    
1497    checkpoint16
1498     o Minor changes to exchange routines to support
1499       accumulation in reverse mode. Adjoint of an
1500       assignment is an addition.
1501     o Changes to support compilation by TAMC (LR(1)
1502       syntax) and by g77 under Linux ( 72 character
1503       limit ).
1504    
1505    checkpoint15
1506     Rewrote exchange routines to allow
1507     o General tile <-> tile connectivity.
1508     o TAMC reverse mode flag ( is this really needed? )
1509     o Variable width overlap and exchange region widths.
1510     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1511       shmput/shmget, VIA, SYSV shmem and every other cool
1512       communication method.
1513    
1514    checkpoint14
1515     Consistent isomorphism chages made. These allow dynamical core
1516     to support both pressure and meters as a vertical coordinate.
1517    
1518    checkpoint13
1519     Release which corrects global_max problem and a couple
1520     of KGM time-averaging diagnostic errors. Also contains
1521     a double-gyre experiment setup as well as the baseline
1522     4 degree global template. The double gyre template is
1523     organised to allow it to be applied automatically to
1524     the baseline configuration.
1525    
1526    branch-point-rdot
1527     A few tidy-ups have been made bt the real point of this
1528     check-point (excuse the pun) is to allow a branch to be
1529     made for the purposes of adding the rDot alterations.
1530     I don't want to commit the rDot to the main-trunk until
1531     we've actually tested it...
1532    
1533    checkpoint12
1534     Tidy up and added generic genmake script (formerly
1535     configure script).
1536     Released to testers.
1537    
1538    checkpoint11
1539     Re-arranged initialise() and introduced ini_vertical_grid()
1540     and ini_masks_etc().
1541    
1542  checkpoint10  checkpoint10
1543   Introduced the configure script.   Introduced the configure script.
1544   Separated out the diags package.   Separated out the diags package.

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