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revision 1.4 by cnh, Mon Jun 8 22:38:51 1998 UTC revision 1.85 by heimbach, Mon Sep 16 18:23:22 2002 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint46f_post
7    o Enable tangent linear (forward mode) gradient checks:
8      - extended active file handling to g_... files
9      - added TANGENT_SIMULATION to theSimulationMode
10      - extended grdchk package accordingly
11    o added tangent linear setup in verification/carbon/code_ftl
12    o added adjoint setup in verification/front_relax/code_ad
13    
14    checkpoint46e_post
15    o Added new equation of state -> MDJWF
16      - EOS of McDougall et al., 2002, JAOT, submitted
17      - caveat: the equation of state is only valid for a smaller (more
18        realistic?) range of values than JMD95P/Z and UNESCO
19      - added masks to the calculation of pressure in store_pressure
20      - added more check values for density in check_eos (ini_eos.F), some of
21        the old check values are out of the range of the MDJWF-eos, so don't
22        expect perfect matches for those
23    checkpoint46e_pre
24    
25    checkpoint46d_post
26    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
27      'OCEANICP', also initialised field pressure correctly in ini_eos in the
28      case of pressure coordinates. eosType='JMD95Z' in
29      combination with buoyancyRelation='OCEANICP' now causes an error.
30    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
31      in find_alpha/beta.
32    checkpoint46d_pre
33    
34    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
35      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
36    
37    checkpoint46c_post
38    o Changes necessary for ocean in p-coordinates
39     -  Added new buoyancy relation = 'OCEANICP'
40     -  Added new parameters = gravitySign (this used to be contained inside
41        the factor dRdZ which I added when we first switched to R coordinates).
42     X GM/Redi is not compatible (yet)
43     X bottom drag and no-slip need to be debugged.
44    checkpoint46c_pre
45    
46    checkpoint46b_post
47    o Added new equation of state -> JMD95Z and JMD95P
48      - EOS of Jackett and McDougall, 1995, JAOT
49      - moved all EOS parameters into EOS.h
50      - new routines ini_eos.F, store_pressure.F
51    o Added UNESCO EOS, but not recommended because it requires
52      in-situ temperature (see JMD95)
53    o Modified formatting for knudsen2.f in utils/knudsen2 and added
54      unesco.f to be used with POLY3
55    checkpoint46b_pre
56    
57    checkpoint46a_post
58    o Added (atmospheric) pressure loading
59      - new field in FFIELDS.h, etc...
60      - new cpp flag ATMOSPHERIC_LOADING
61    o Changed hFacC to _hFacC in calc_phi_hyd.F
62    o Added SHORTWAVE_HEATING to some files for consistency
63    checkpoint46a_pre
64    
65    checkpoint46
66    further merges from release1_p5
67    o new ctrl package
68      - adopted from ECCO environment to enable optimization
69      - added Eliassen Palm fluxes to controls
70    o added Eliassen Palm flux controls to gradient check package
71    o cost package
72      - Compatible with new ctrl package
73      - added Eliassen Palm cost hooks
74      - modif's of existing cost functions
75    o Adjoint-related bug fixes in kpp:
76      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
77      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
78    o autodiff package
79      - flow directives:
80        + new for S/R do_the_model_io
81        + enhanced for S/R checkpoint
82        + new gmredi.flow
83      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
84        disable adcommon.h/g_common.h by default.
85      - fixed problem for adjoint of global_max
86    o modified verification/carbon/
87    o New setup for adjoint of global_ocean
88    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
89    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
90    o incorporated hooks for sponge layer code (external_forcing.F)
91    
92    checkpoint45d_post
93    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
94    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
95      (affects plume_on_slope "cg2d" output)
96    o add new parameter deltaTfreesurf for free-surface time stepping
97    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
98    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
99    o change phiMin in exp1 (to agree with documentation)
100    o add new flags:
101     - T,S forcing inside/outside Adams-Bashforth
102     - turn off temp,salt advection and/or forcing
103     - for each tracer, define internal flag for multiDimAdvection & A-B
104    o monitor: change definition of KE to check conservation of Energy
105    
106    checkpoint45c_post
107    o Removed f90 comments ("!")
108    o Modified initialisations to enable exf package for MITgcm
109      (without invoking ECCO_PACKAGE).
110    o modifications to gradient check package (Martin Losch)
111      - enable centered differences
112      - modified format of standard output
113    
114    checkpoint45b_post
115    o cleaned exchange calls in cg2d
116    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
117    o included CPP option SINGLE_LAYER_MODE in thermodynamics
118      to configure barotropic setup (Martin Losch)
119    o moved some initialisations within bi,bj loop in dynamics
120      (TAF flow dependency)
121    o in initialise_varia, moved call packages_init_variables
122      before convective_adjustment_init
123      (corresponding adjustment of TAF tape initialisation).
124    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
125    
126    checkpoint45a_post
127    o compute Rho over the whole domain (extend iMin,jMin indices)
128    o specific exchange for X-slice domain (case Ny=1)
129    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
130    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
131    
132    checkpoint44h_post = checkpoint45
133    o Fix to restore differentiability:
134      place at which packages_init_variables is called in
135      initialise_varia is crucial for reverse control flow.
136    o modifications in GMRedi to enable stable adjoint
137      (corresponding modif's in thermodynamics, dynamics)
138    o added missing hook for sponge layer code in external_forcing
139    o modified test cost functions
140    o storing in gad_advection (plus removal of write(0,*)!
141    o missing headers TR1.h added in convective_adjustment routines
142    o errorMessageUnit set non-equal zero in eeboot
143      (conflict on some platforms, e.g. IBM SP3)
144    o modified carbon verif.
145    
146    checkpoint44h_pre
147    o vertical grid option: allow to put the Interface at the middle between
148      2 cell-centers ; replace delZ in pkg/kpp by drF.
149    o GM Advective form: Tracers are advected using the residual transport (=
150      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
151    
152    checkpoint44g_post
153    o fix surface correction term in multiDimAdvection (affects plume_on_slope
154      results) ; ifdef missing in thermodynamics.F
155    
156    checkpoint44f_pre,checkpoint44f_post
157    o added PTRACERS package
158      This allows an arbitrary number of passive tracers to be integrated
159      forward simultaneously with the dynamicaly model.
160      + Implemented so far:
161        - basic forward algorithm (time-stepping, advection, diffusion, convection)
162        - I/O and checkpointing
163        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
164      + Not implemented so far:
165        - KPP
166        - OBCS
167      + No specific example supplied (yet) but global_ocean.90x40x15 has the
168        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
169        line in data.pkg.
170      + This package is disabled by default since it increases storage.
171    
172    
173    o testscript: added -cleanup option
174    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
175                 b) enable to filter 2D fields.
176    
177    checkpoint44e_pre,post
178    o re-wrote convective adjustment to use pre-calculated weights
179      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
180      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
181      Original calls to convect() still in place.
182    
183    chkpt44d_pre,post
184    o added missing EXCLUDE_MONITOR flags
185    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
186      (incompatible typ in MIN/MAX expressions caused problems
187      on IBM SP3)
188    o in genmake added variable MAKEDEPEND
189      plus resetting for case SunOS
190    o added timer_stats.c routine for IBM SP3
191    o removed variables in dynamics
192    !!! I forgot to create tag chkpt44d_pre !!!
193    !!! But chkpt44d_pre = chkpt44c_post    !!!
194    
195    o real fresh water flux implemented with non-linear free-surface.
196    
197    chkpt44c_pre,post
198    o few fix (mask in shap_s2, EmPmR in external_field_load,
199      USE_NATURAL_BCS in solve_for_P);
200    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
201    
202    checkpoint44b_pre/_post
203    o merge of relevant stuff from the ecco-branch:
204      - genmake: removed $S64 overwrite for case SunOS
205      - pkg/exf: update and corrections for field swapping and obcs
206      - pkg/ecco: parameter lists for the_model_main, the_main_loop
207                  harmonized between ECCO and MITgcm
208      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
209                      updated checkpointing_lev... lists for obcs
210      - model/src: minor changes in forward_step, plot_field
211                   added directive for divided adjoint in the_main_loop
212      - pkg/mdsio: added mdsio_gl_slice
213    
214    o check parameters & config (chkpt44a_pre,post)
215    o OBC and NonLin_FrSurf.
216    
217    checkpoint44
218    o fix bug in mom_vi_del2uv
219    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
220    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
221    o update AIM experiments (NCEP input files)
222    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
223    o added some stuff for AD
224    
225    checkpoint43
226    o added two new advection tests
227    o added global 4x4 degree ocean test
228    o added test of H&S94 with free surface on cube
229    o some final mods for gradient check, adjoint,...
230    
231    checkpoint42
232      Fixed AD-related problems:
233    o Store directives up-to-date with re-arranged Adams-Bashforth
234      (mainly thermodynamics.F)
235    o New store directives for multi-dim. advection schemes
236      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
237      * new common block and key passkey
238      (mainly gad_advection.F)
239    o Modified store directives for split of dynamics/thermodynamics
240      for the case ALLOW_KPP
241    o Cleaned argument list for timestep_tracer.F
242    
243    checkpoint41
244    o re-formatted/added comments in prologues of key subroutines
245      to work with protex
246    
247    checkpoint40
248    o moved calc_gs, calc_gt and calc_tr1 back to model/src
249    o added FLT (floats) package from Arne along with demo. experiment
250    o re-arranged Adams-Bashforth scheme for tracers to allow easier
251      implementation of forward-in-time forcing terms
252    o more mods for non-linear free-surface including new variable
253    o modified multi-dim method to work on cube
254    o bug fix in KPP (from DM)
255    
256    checkpoint40pre9
257    o added DST advection schemes
258    o fix MPI bug on SGI's
259    o modifications for non-linear free-surface
260    o fixed conditionals for fixed flow/passive tracer only mode
261    o added tension/strain form of stress tensor
262    o changes to commenting of arguments for TAF/TAMC
263    o added/updated many matlab scripts
264    o added multi-dimensional advection method for tracers
265      
266    checkpoint40pre8
267    o new package rw/
268      Added method for dumping intermediate local arrays:
269      mdsio_writetile - same as mdsio_writefield except works from inside
270                        bi,bj loop
271      mdsio_writelocal - same as mdsio_writetile except works for local
272                         arrays
273      write_local_r? - higher-level wrapper for mdsio_writelocal
274      Controlled by diagFreq. Defaults to zero (ie. no dumps)
275      Example given at end of mom_vecinv.F that dumps some local arrays.
276    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
277      control flux-form versus vector invariant code.
278      Switch is runtime flag vectorInvariantMomentum (defaults to false)
279      or genmake -DISABLE ...
280    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
281      (additional storing is now needed for case vecinv;
282      currently nothing implemented to switch this storing off
283      in case fluxform is used since no CPP flag available).
284    
285    checkpoint40pre7
286    o bug fix in dynamics.F
287      calc_viscosity called before k=1,Nr loop.
288    o added some #ifdef's ALLOW_PASSIVE_TRACER
289    o cleaned initialisations in ctrl_map_ini
290      related to TAF
291    
292    checkpoint40pre6
293    o split dynamics into thermodynamics & dynamics
294    o corresponding split of calc_diffusivity into
295      calc_diffusivity, calc_viscosity
296      (kpp_calc_diff, kpp_calc_visc).
297    o Added diffkr, kapgm to control variables
298    o bug fix in gmredi_slope_limit for ldd97
299    
300    checkpoint40pre5
301    o proper initialization of Adams-Bashforth time stepping
302      + uses forward step for very first step of model (iter=0)
303    o re-generated *all* output since almost all output is modified by this
304      change (sorry but we've been putting this one off for about 2 years)
305      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
306        *not* regenerated since they are already out of date and I don't
307        want to create the impression that they are suddenly working.
308    o removed KAP stuff for DEC's
309    o modified/added many .cvsignore files in */code and */input
310    o added new expt "solid-body.cs-32x32x1"
311      + this uses an alternative form of ini_curvilinear_grid.F which
312        is not necessarily any better than the current one...
313    
314    checkpoint40pre4
315    o added re-initialisations of utrans,vtrans,rtrans in
316      calc_common_factors which are crucial for TAF.
317    o extended iMin,jMin range for calc_common_factors,
318      calc_diffusivity
319    o added option ALLOW_PASSIVE_TRACER
320    o a few minor updates and fixes
321    
322    checkpoint40pre3
323    o created calc_gtr1.F for gad package
324    o split the_main_loop and re-introduced forward_step
325    o some recomputations of nIter0 for TAMC
326    
327    checkpoint40pre2
328    o Updated to latest branch of AJA, JMC
329    o Added gradient check package
330    o Added routines for passive tracer handling
331    o Added carbon sequestration sensitivity experiment
332    
333    checkpoint39
334     o Modifications and fixes to support TAMC
335       (mainly missing or wrong directives)
336     o Corrected common blocks when fooling TAMC to produce adjoint I/O
337       in addummy_in_stepping
338     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
339     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
340     o Included following packages:
341       cal: calendar
342       exf: external forcing
343       ecco: essential routines to control use of cal, exf
344             (NB: this is not the full ECCO environment)
345     o disabled some packages by default in genmake
346    
347    checkpoint38
348     o see notes_c37_adj.txt
349     o corrected wrong layer index in external_forcing_t
350     o replaced the_main_loop/forward_step by the_main_loop
351     o removed forceoutput from write_state
352       (replaced criteria for initial/final state)
353     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
354    
355    checkpoint37
356     o mdsio.F routine split and packaged in pkg/mdsio
357       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
358        used unless genmake -disable=mdsio)
359     o allow a more precise surface-geopotential gradient for the atmosphere
360       taking into account the change in space of Alpha (=1/rho) at the surface.
361     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
362       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
363     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
364       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
365       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
366     o Time-Average diagnostics defined as a pseudo package "timeave".
367     o pickup files : old pickup (before c35) did not work with new code (c35
368       and after) unless activating 2 commented lines in initialise-varia.
369     o Non-Hydrostatic pickup file Pb fixed.
370     o bug with Rigid-lid version (since c35) fixed.  
371    
372    checkpoint36
373     o implement Crank-Nickelson barotropic time-stepping
374     o recover Time-Average diagnostics
375     o fix Pb in checkpoint (PR#19)
376     o AIM become a standard package ; clean unused CPP_kees
377    
378    checkpoint35
379     o subtantial rewrite of dynamics.f
380     o allows staggered time-stepping
381     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
382     o added bottom drag (linear + quadratic)
383    
384    checkpoint34
385     o Modified exchange routines for correct reverse simulation.
386     o Added verification output to comply with bug fix in impldiff.F
387       as of c33 (exp2, natl_box).
388     o Corrected store directives in dynamics.F
389     o Corrected array boundaries in impldiff.F
390     o Corrected array dimensions in gmredi.
391       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
392     o Added routine GLOBAL_SUM_INT to global_sum.F
393     o Added mdsio_gl.F for ECCO purposes.
394    
395    checkpoint33
396     o Fixed bug in lower BC in impldiff.F
397     o Fixed confusion about units of forcing arrays in FFIELDS.h
398       namely Fu,Fv,Qnet,Qsw,EmPmR:
399       - Removed verification/natl_box/code/external_fields_scale.F
400         (did not differ from that in model/src)
401       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
402         (see FFIELDS.h for description)
403       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
404         kpp_calc.F and kpp_transport_t.F
405       - Removed model/src/external_fields_scale.F and calls to it
406       - verification/natl_box uses flux data with "atmospheric" sign so
407         a special version of external_fields_load.F is used to
408         change the data as it's read in. This way, the arrays
409         have the right units and signs at all times tha a user could
410         possibly use them.
411     o Corrected genmake to delete a temporary file during configuration
412    
413    checkpoint32
414     o Scaling of forcing fields moved from external_forcing.F to
415       external_fields_scale.F, called directly after loading fields.
416     o Surface relaxation terms added to surface tendency fields in
417       extra subroutine.
418     o impldiff.F changed to avoid storing by TAMC of huge intermediate
419       fields.
420     o Changes in GMRedi to comply with packaging structure.
421     o Modifications and bug fixes in KPP package.
422     o Verification experiment for KPP added (verification/nat_box/)
423    
424    checkpoint31
425     o Packages interface brought in line with defined standard
426       -> new routines packages_...F
427       -> changes in initialise_fixed.F, initialise_varia.F
428       -> enables initialisation interface for ECCO package
429     o Rescaling of external forcing fields immediately after read
430       (removed from external_forcing.F)
431       -> new: surface_fields_scale.F
432       -> affects ini_foorcing.F, external_fields_load.F
433     o Computation of surface tendencies before tendency updates.
434       -> new: external_forcing_surf.F
435     o Change of variable names useGMRedi, useKPP, useECCO
436     o Further changes in dynamics.F, impldiff.F for TAMC
437     o Tested for experiments 0, 2, 4.
438       - not yet tested for GMRedi.
439       - not yet tested for KPP.
440    
441    checkpoint30
442     o Updates for OBCs
443     o New experiment for test OBCs (internal_wave)
444     o New output.txt in verification/exp4/results/
445     o Updates for KPP: calculation of viscosity corrected, new variables
446       kpp_dumpFreq and kpp_taveFreq
447     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
448       and entry for T90 in genmake
449    
450    checkpoint29
451     o packaged KPP and GM/Redi
452    
453    checkpoint28
454     o Corrected initialization of hFacMin for difference vertical coordinates
455     o Modified calculation of partial cell thickness to more robust algorithm
456     o config_summary.F: replaced write_1D_... by write_0D_...
457       read_write.F: added subroutines write_0D_...
458     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
459       included some initialisations required for TAMC.
460     o routine calc_isoslopes: modified sqrt computation to make it
461       differentiable for zero argument.
462     o routines dynamics, impldiff:
463       included store directives and tape key computations required for TAMC.
464     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
465    
466    checkpoint27
467     o fixed calc_isoslopes() to so that cancellation of terms in tensor
468       formulation works properly with variable resolution.
469     o restructured the calling tree between the_model_main() and dynamics()
470     o split initialise() into initialise_fixed() and initialise_varia()
471     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
472       in new routine ini_psurf()
473    
474    checkpoint26
475     o moved some #ifdef in optional routines to encompass everything
476       except the argument declarations. This was using up some memory.
477     o fixed macros like _ADT to work with both versions of Linux cpp
478     o cleaned up some unused and uninitialized variables
479       (helps when debugging with strict compile options)
480     o split up CPP_EEOPTIONS.h into options and macros
481       (macros are now in eesupp/inc/CPP_EEMACROS.h)
482     o patch for 2 processor JAM mode
483    
484    checkpoint25
485     o updates for OBCs and NH
486     o dramatically reduced memory usage
487     o added "JAM" routines for use on Artic network
488     o parameterization of convection by implicit vertical diffusion
489     o added a diagnostic of convective index
490     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
491       (this is was partly for OBCs and NH but also in anticipation of
492        an explicit free-surface option)
493     o initial state input files for U and V
494    
495    checkpoint24
496     o Removed some spurious "REAL"s
497     o Updated KPP to latest version from JPL
498     o Added a COS(latitude) in horizontal viscosity
499    
500    checkpoint23
501     o Added del^4 diffusion for salt and temperature
502     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
503    
504    checkpoint22
505     o Made many small changes: implicit none, format(i5), etc...
506     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
507    
508    checkpoint21
509     o Introduced new I/O package that supports direct-access records (mdsio.F)
510     o Split-up mid-level I/O routines
511     o Updated input data for experiments 0,1,2,4 and 5
512     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
513    
514    checkpoint20
515     o Tidied up open-boundaries some more
516     o Added non-hydrostatic code
517     o Fixed some input data
518     o Modified MPI start-up to work in "coupled" context.
519    
520    checkpoint19
521     o Tidied up directory structure for verification experiments.
522     o Added new code for open boundaries.
523     o Corrected advective terms near boundaries.
524     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
525     o Implemented free-slip/no-slip BCs and del^4 dissipation.
526     o Split default parameters out of ini_parms.F into set_defaults.F.
527    
528    checkpoint18
529     o Further changes for optional code generation with
530       CPP - ugh!
531    
532    checkpoint17
533     o Beginning to incorporating modularity
534       for supporting atmos. and ocean configs.
535     o Small changes for TAMC complinace
536     o New ultra simple test case. Barotropic box
537       configuration "exp0".
538    
539    checkpoint16
540     o Minor changes to exchange routines to support
541       accumulation in reverse mode. Adjoint of an
542       assignment is an addition.
543     o Changes to support compilation by TAMC (LR(1)
544       syntax) and by g77 under Linux ( 72 character
545       limit ).
546    
547    checkpoint15
548     Rewrote exchange routines to allow
549     o General tile <-> tile connectivity.
550     o TAMC reverse mode flag ( is this really needed? )
551     o Variable width overlap and exchange region widths.
552     o Hooks for sharing data via DMA, Arctic, Memory Channel,
553       shmput/shmget, VIA, SYSV shmem and every other cool
554       communication method.
555    
556    checkpoint14
557     Consistent isomorphism chages made. These allow dynamical core
558     to support both pressure and meters as a vertical coordinate.
559    
560    checkpoint13
561     Release which corrects global_max problem and a couple
562     of KGM time-averaging diagnostic errors. Also contains
563     a double-gyre experiment setup as well as the baseline
564     4 degree global template. The double gyre template is
565     organised to allow it to be applied automatically to
566     the baseline configuration.
567    
568    branch-point-rdot
569     A few tidy-ups have been made bt the real point of this
570     check-point (excuse the pun) is to allow a branch to be
571     made for the purposes of adding the rDot alterations.
572     I don't want to commit the rDot to the main-trunk until
573     we've actually tested it...
574    
575    checkpoint12
576     Tidy up and added generic genmake script (formerly
577     configure script).
578     Released to testers.
579    
580    checkpoint11
581     Re-arranged initialise() and introduced ini_vertical_grid()
582     and ini_masks_etc().
583    
584    checkpoint10
585     Introduced the configure script.
586     Separated out the diags package.
587     Added template for writing time-averages of tile/intermediate quantities.
588     Updated SIZE.h in exp2 and made the data big-endian.
589    
590    checkpoint9
591     MPI fix. Filename changes (meta/data). salbin*y stuff.
592     General tidy-up.
593     SST.bin SSS.bin added to verification/exp2
594    
595    checkpoint8
596     Inludes time-dependant forcing and time-averaging.
597     Works at 4x4 and 2.8125x2.8125 global
598    
599    checkpoint7-4degree-ref
600     Branch from checkpoint7. Released for application to
601     global modeling and general modeling - process studies, regional
602     model etc..
603     Configured for verification/exp2 - 4 degree global, two process.
604    
605    checkpoint7
606     Created by cnh
607     Simple 4 degree global simulation
608     configuration.
609     Includes climatological wind,
610     hydrography, bathymetry etc
611     Does not include Heat Flux and E-P
612    
613  checkpoint6  checkpoint6
614   Created by cnh   Created by cnh
615   merged checkpoint5 with CD and   merged checkpoint5 with CD and

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