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revision 1.1217 by jmc, Fri Jan 15 00:59:33 2010 UTC revision 1.1506 by jmc, Tue Sep 27 23:52:10 2011 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/ebm:
8      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
9        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
10    o pkg/seaice (SItracer pickup)
11    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
12      To be done:
13      - thorough testing of missing fields in S/R seaice_read_pickup
14      - thorough matching between generic tracers and specific fields used
15        (e.g. volume-weighted age, area-weighted age, salinity, ...)
16    o pkg/grdchk:
17      - all procs calculate and print finite-difference gradient (for testreport)
18      - change description output used by testreport;
19      - AD testing: also compare and report Finite-difference gradient;
20        => update all output_adm*.txt
21    o test exp. global_ocean_ebm:
22      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
23        and turn on exactConserve; update (fwd) output.
24    o pkg/seaice (LSR):
25      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
26      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
27        * identical results with non-CS topology (but save up to half of EXCH calls)
28        * no much changes in cs-32 verification tests since no ice at face edges
29         (differences due to convergence criteria, since nb of iterations changed)
30        * expect some differences on lat-lon-cap grid.
31        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
32    o pkg/exch2:
33      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
34        many tiles); until alternative coding is added, just add a stop.
35    o pkg/kpp:
36      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
37        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
38    o optfiles:
39      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
40        into corresponding standard one, which now support different build:
41        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
42      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
43    o pkg/obcs (seaice):
44      - add missing EXCH for uIce,vIce after applying OBCS;
45      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
46        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
47        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
48      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
49      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
50        and eedata.mth for MPI and mutlti-threaded testing.
51    o pkg/flt:
52      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
53      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
54      - fix pickup and trajectories + profiles output with multi-threads;
55      - add parameter to select group of fields to write along trajectory and
56        profile (default unchanged);
57      - only call PORT_RAND* function when flt_noise <> 0;
58      - add multi-threaded test for verification exp. flt_example.
59    o eesupp/src:
60      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
61      - USE_OMP_THREADING: check that number of threads (from eedata) matches
62        actual number (from env.var. setting).
63    o pkg/ebm:
64      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
65      - add multi-threaded test for verification exp. global_ocean_ebm
66    
67    checkpoint63b (2011/08/29)
68    o pkg/ebm:
69      - fix sign of runoff;
70      - update directly forcing fields (Qnet,EmPmR) to use standard
71        external_forcing_surf.F (remove ebm_forcing_surf.F);
72      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
73      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
74        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
75      - update global_ocean_ebm parameters file data and update output (fwd+ad).
76    o verification/matrix_example:
77      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
78        MPI and mutlti-threaded testing.
79    o pkg/matrix:
80      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
81      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
82      - fix for multi-threaded (remove DATA statement);
83      - use standard DIFFERENT_MULTIPLE function;
84      - add MATRIX_OPTIONS.h
85    o verification/matrix_example:
86       To allow to split the domain in several tiles, change the domain size
87        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
88        Western side) of land points.
89    o (*_)write_pickup:
90      - fix few bugs in mypackage_read/write_pickup.F
91      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
92        array of length 1 (was caught by compiler syntax-check).
93    o pkg/diagnostics (velocity potential solver):
94      - fix initialisation of main diagonal matrix (for overlap values)
95    o tools/build_options:
96      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
97        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
98      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
99        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
100        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
101        and use "-devel" testreport option for standard testing on baudelaire.
102    o pkg/grdchk:
103      - Assume that all gradient-check position are within the same tile
104        corresponding to global indices (iGloTile,jGloTile) and that
105        positions (i,j indices or nbeg) are local to this tile;
106      - set tile local-indices and proc. number according to tile global-indices;
107      - remove grdchkwhichproc from namelist (retired param);
108      - send adjoint gradient to all procs so that all procs print it to STDOUT;
109      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
110    o adding package bbl (Bottom Boundary Layer)
111      description in MITgcm/pkg/bbl/bbl_description.tex
112      example/test experiment in MITgcm_contrib/bbl
113    o adjoint verifications
114      - changed 5 experiments to multi-tiles
115        * global_ocean.90x40x15
116        * obcs_ctrl
117        * offline_exf_seaice
118        * tutorial_dic_adjoffline
119        * tutorial_tracer_adjsens
120        changed reference output for those that crossed tile boundaries
121        (changed choices of gradient check positions)
122      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
123      - temporary bug fix in grdchk_loc.F for obcs
124    o genmake2 & testreport
125      - add target "obj" (just for OBJFILES files) to Makefile;
126      - add option to specify FEXTRAFLAGS on command line.
127    o pkg/mypackage:
128      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
129    
130    checkpoint63a (2011/08/02)
131    o pkg/diagnostics (velocity potential):
132      - fix velocity-potential calculation when using OBCS: balance net inflow
133        at each level (new S/R OBCS_DIAG_BALANCE).
134      - fix some of the problems with OBCS in stream-function calculation.
135    o pkg/exf/exf_readparms.F
136      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
137        EXF_NML_OBCS) more consistent, so that you need not have these lists
138        in data.exf when they are not used.
139    o optim/optim_readdata.F:
140      - add some output about obcs variables that might help debugging
141      - add a check about nvarlength
142    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
143    o pkg/diagnostics (velocity potential):
144      - fix mask for OBCS (still problems in stream-function with OBCS);
145      - add specific parameter (default = main code CG2D params) for solver;
146      - in case of poor convergence, use solution corresponding to lowest residual.
147    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
148      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
149      and should be avoided where possible.
150    o model/src (rStar):
151      - include r* effect on reference-state (PhiRef) in totPhiHyd
152        (so that it's really the potential anomaly at the cell center);
153        affect solution only if z* with full pressure in EOS.
154      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
155        update output (because of z* in totPhiHyd and viscA4 changes);
156      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
157        @ constant r) until interpolation at constant r is implemented.
158    o pkg/diagnostics
159      - fix RCENTER diagnostics in case cell center is not at interface middle
160    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
161      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
162      that THETA and SALT are "conservative temperature" and "absolute
163      salinity"
164    o pkg/ctrl
165      - fix computation of endrec in s/r ctrl_init_rec
166      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
167    o pkg/seaice/seaice_growth.F
168      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
169        remove then obsolete STORE directives
170      - fix STORE directives for tice and tices, so that only the
171        appropriate part of the fields are stored (and not the entire
172        field); update global_ocean.cs32x15.seaice AD output.
173      - cosmetic changes: adjust CPP flags and indentation for better
174        legibilty
175    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
176      Chris Wilson)
177    o pkg/gmredi:
178       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
179       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
180    
181    checkpoint63  (2011/07/11)
182    o pkg/exch2:
183     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
184     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
185       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
186       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
187    o pkg/diagnostics:
188     - deal with pairs of post-processed diags which are computed together; in
189       particular, re-order list of diags within 1 file to save 2nd computation.
190     - add S/R to compute velocity stream-function (called after velocity-potential
191       calculation) from divergence free transport -> new diagnostics "PsiVEL".
192     - add parameter to select grid-point location where PsiVEL == 0.
193    o eesupp/src:
194       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
195       (specific S/R needed with exch2 topology - for now, just print an error msg)
196    o pkg/shelfice
197     - Implement friction velocity-dependent transfer coefficients following
198       Holland and Jenkins, JPO, 1999
199       Original code by M. Losch with small modifs.
200       Enable with CPP option SHI_ALLOW_GAMMAFRICT
201       and runtime flag SHELFICEuseGammaFrict
202    o verification lab_sea & global_ocean.cs32x15:
203     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
204       does not miss some dependencies (but is slower) and also works with many files
205       (default makedepend limitation for AD built).
206     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
207    o pkg/diagnostics:
208     - add run-time parameter "useMissingValue" (def=False) to fill land-point
209        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
210       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
211     - Extend the use of "missing_value" setting from data.diagnostics for the case
212       of counter-diagnostics (where fraction-weight is zero). This applies both to
213       MNC and MDS output files.
214    o pkg/seaice/seaice_growth.F:
215      - add 'a priori' cap of latent heat flux based on actual mass considerations
216        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
217        non-legacy seaice_solve4temp.
218      - add diagnostic of the residual sublimation freshwater flux (the freshwater
219        flux taken from the ocean if the total actual latent heat fluxes exceed
220        the maximum)
221      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
222       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
223      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
224       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
225      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
226      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
227    o verification 1D_ocean_ice_column:
228       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
229       update results
230    o pkg/diagnostics:
231     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
232       which are not filled-up but computed from other diags ; In this case, the mate
233       diag points to the primary (filled-up) diag to used for post processing.
234     - Update Velocity-potential computation using post-processed diag framework.
235     ==> Change the ordering of fields and time-periods in MDS output file
236       when using periodic averaging: now writes one time record with the full set
237       of fields for this time period, then the next time reccord (it used to be
238       one field with the full set of time records then the next field).
239         Note: this is now similar to NetCDF (MNC) output file. <==
240    
241    checkpoint62z (2011/06/21)
242    o adjoint monitor:
243     - Add adjoint monitor output for packages exf, seaice
244       and update relevant testreport output
245    o pkg/seaice:
246     - re-order diags inits so that they appear in order in available_diagnostics.log
247     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
248       area/heff/hsnow preceeding thermodynamic growth/melt.
249     - modified diag: SIdA; output actual effect, as the description states.
250     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
251     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
252       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
253        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
254     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
255     - added diagnostics for seaice generic tracers (SItr*).
256     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
257     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
258     I. Fenty: 18-Jun-2011:
259     Minor changes to seaice package:
260     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
261        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
262       - Differentiated "regularization variables" from "floor variables"
263        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
264        * hiceMin became SEAICE_hice_reg (old hiceMin)
265          (with _reg meaning regularization variable)
266       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
267        so as to ensure energy conservation when going between phases
268      - A22 was not used anywhere
269     2) Changed regularization procedure for heffActual and hsnowActual to ensure
270        well-boundedness and smooth adjoint in seaice_growth.F
271     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
272        because the old regularization always set heffActual >= 0.05 cm
273     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
274        on AREA when HEFF > 0.
275      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
276        requiring that DISABLE_AREA_FLOOR *not* be defined
277     Affected verifications:
278      - 1D_ocean_ice_column (output.txt output_adm.txt)
279      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
280    o pkg/diagnostics:
281      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
282      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
283        (was _RL, now integer) with option = 0 to retrieve all levels.
284      - add pieces of code to compute velocity potential at each level (new diagnostics
285        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
286        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
287      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
288        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
289        and in diagnostics_fract_fill.F (do not need a valid pointer for the
290        diagnostics counter-mate); check that definition of counter-diagnostic
291        includes a valid counter-mate (in diagnostics_set_levels.F).
292    o model/src (rStar):
293      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
294        affect solution only if z* with full pressure in EOS;
295        update output of test-exp global_ocean.90x40x15.
296    o pkg/seaice:
297      - introduce siEps=1e-5 parameter
298      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
299      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
300      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
301        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
302        as well as ice cover age and ridging index (attached to AREA).
303        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
304        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
305        Up to SItrMaxNum=3 tracers can be used simultaneously.
306    o pkg/salt_plume:
307      -introduce SPsalFRAC run time parameter that sets the fraction of the
308       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
309       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
310    o model debug options:
311      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
312        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
313      - Refine debug-msg printing selection (3 new levels):
314        debugMode  : controls printing of debug messages (sequence of S/R calls).
315        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
316         debLevZero =  0 ; /* level of disabled aux. msg printing */
317         debLevA =  1 ; /* level of minimum  aux. msg printing */
318         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
319         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
320         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
321         debLevE =  5 ; /* level of extensive debug printing */
322        New debugLevel default: with default debugMode value (=F),
323          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
324          and if debugMode=T, default debugLevel = 4 (debLevD).
325        Relation with previous settings:
326         debLevB (=2) corresponds to former debLevA (=1)
327         debLevD (=4) corresponds to former debLevB (=2)
328        Note:
329         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
330         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
331            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
332      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
333        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
334    o pkg/obcs:
335      - change OBCSfixTopo default from True to False (should not change the results);
336        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
337    o pkg/thsice:
338      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
339        2nd layer seaice sublimation (unlikely to happen)
340      - use Interior mask for OBCS in thsice_advection.F (similar to what is
341        done in gad_advection & seaice_advection).
342    o adjoint:
343      bug fix spotted by Gael Forget:
344      seaice_advection and thsice_advection still had
345      legacy CPP options to avoid CS corner updates for adjoint
346    o pkg/seaice:
347      => Change some of the defaults (2011/05/29):
348         - change SEAICEuseFluxForm default (from False to True)
349         - change DIFF1 default (from 0.004 m/s to 0. m/s)
350         And print warnings if DIFF1 is not set in data.seaice and centered
351          avection scheme is used without any diffusion.
352      also:
353      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
354      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
355      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
356        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
357        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
358      update results of test exp.:
359         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
360             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
361             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
362         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
363         seaice_obcs: output (SEAICEuseFluxForm=T)
364      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
365          for standard fwd & AD lab_sea tests (to keep the same output).
366    o pkg/seaice/seaice_growth.F:
367      - use Ian Fenty's capping formulas for actual ice
368      thickness thoughout EVOLUTION branch.
369      - put treatment pathological case #2) in CPP brackets
370      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
371      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
372    o pkg/seaice:
373      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
374      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
375      also pass fac as a param, which can be 1. (to update the tendency
376      field) or the time step (to update the field itself).
377      - seaice_advdiff.F: for multidim, call seaice_diffusion with
378      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
379      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
380      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
381      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
382    o pkg/seaice:
383      diffusion with centered advection scheme (diffus.F & advect.F):
384      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
385        to just compute the laplacian of input-field.
386      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
387      - fix flux-form version in diffus.F to conserve tracer.
388      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
389       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
390    
391    checkpoint62y (2011/05/26)
392    o pkg/seaice:
393     - seaice_growth.F : in EVOLUTION branch, always include
394       a_QSWbyATM_cover in qnet (as it should be).
395     - verification/global_ocean.cs32x15 : update results accordingly
396       (output.seaice.txt output_adm.seaice.txt).
397    o pkg/seaice + obcs:
398     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
399       equivalent of assuming no tracer gradient outside the OB region.
400       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
401     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
402       after changes above);
403     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
404       only at OB location (instead of over a band of OLx width).
405    o pkg/seaice:
406     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
407       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
408    o pkg/obcs:
409      - split header file "OBCS.h" into 4 separated files:
410        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
411       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
412         (contain no conditional statement which depends on OBCS options).
413      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
414        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
415    o ctrl, cost, grdchk & autodiff pkgs:
416      - make options file more standard (like other {PKG}_OPTIONS.h file but
417        with AD_CONFIG.h); clean-up some of the included header files.
418    o pkg/obcs:
419      - do not mask tracer when applying OB (tracer == 0 could generate problems)
420      - apply tracer OB values to tracer field only at OB location (instead of
421        over a band of OLx width)
422      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
423      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
424        obcs_apply_tloc.F & obcs_apply_sloc.F
425    o obcs in model/src:
426      - call OBCS_APPLY_W only if NonHydrostatic.
427      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
428      - reset dEtaHdt and wVel to zero outside OB interior region ;
429      - leave tracer unchanged outside OB interior region: This has no effect
430        on the solution but just to prevent unrealistic tracer value outside OB.
431      - zero out velocity outside OB interior region: This has no effect on
432        the solution but just to prevent unrealistic velocity outside OB.
433    o obcs and non-lin free-surf:
434       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
435       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
436       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
437       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
438       update results of test-exp. exp4(nlfs).
439    o exp4 (nlfs) test-exp:
440       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
441       with NonLin-FreeSurf); update output.nlfs.txt
442    o obcs and 2d/3d solver norm:
443       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
444       and outside OB interior region (will allow to place OB further inside the
445       domain). Depending on the domain, can affects cg2d-Norm (previous
446       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
447       and cg3d-Norm (previous Norm was computed before canceling OB terms),
448       e.g. in tutorial_plume_on_slope.
449      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
450    o pkg rbcs:
451      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
452      - add capability to apply relaxation to horizontal velocity uVel & vVel.
453    o pkg/grdchk: add gradient check for control variable xx_shifwflx
454    o pkg/shelfice/shelfice_init_fixed.F
455      fix CPP-flag combinations
456    o pkg/seaice: Merge iceage code of Pierre Rampal
457      * update/change/correct ice age calculations
458      * add age updates for pathological cases
459      Probably needs more testing...
460    
461    checkpoint62x (2011/05/13)
462    o pkg/mom_vecinv:
463       high-order vorticity scheme: use interior masks (maskInW & S)
464       to zero-out (outside OB) gradient of vorticity.
465    o verification exp.:
466       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
467       hs94.128x64x5 and seaice_obcs ; update results.
468    o pkg/obcs:
469      fix bug in OBeta for YZ sections in obcs_exf_load.F
470    o pkg/ctrl, pkg/shelfice, and optim:
471      - add new control variable xx_shifwflx (fresh water flux underneath ice
472        shelves). This is almost as tedious as obcs-ctrl, because the
473        variables needs its own mask.
474      - add a cost function term that penalizes the deviation of xx_shifwflx
475        from the first guess (zero) in analogy to other control variables
476    o pkg/shelfice:
477      - start basic adjoint
478    o pkg/ctrl:
479      - remove extra 2D field "for good measure" when initializing in
480        ctrl_set_globfld_[xy/xz/yz].F
481      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
482      - improve error messages in ctrl_set_unpack_*
483    o OBC implementation in momentum:
484       use interior masks (maskInC,W & S) in momentum S/R:
485       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
486       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
487       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
488       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
489       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
490        (and also with Leith/Smagorinsky harmonic-viscosity).
491       Update output of experiment dome and exp4 (+nlfs).
492    o exp4 test-exp:
493      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
494        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
495        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
496        time-varying OB at Western-side for wVel (NonHyd); update output.
497      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
498        and biharmonic-viscosity ; also use prescribed time varying OB.
499    o pkg/obcs:
500      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
501    o model/src:
502      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
503      - initialise startTime & nIter0 with unlikely values: allows to set one
504        from the other without ambiguity.
505    o seaice_obcs test-exp.:
506      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
507    o pkg/obcs:
508      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
509        no longer needed with maskInC,W,S in pkg/generic_advdiff.
510    o pkg/seaice:
511      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
512        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
513      - fixed bug in the initialization of sea ice salinity variable HSALT
514        in seaice_init_varia.F  (removed dependence on ICE2WATR)
515    o fizhi-cs test exp.:
516       switch reference output convention for these 2 non-standard test-exp,
517        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
518          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
519       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
520    o model/inc:
521      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
522        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
523    o pkg/seaice:
524      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
525    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
526      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
527        and initial HSALT
528    
529    checkpoint62w (2011/04/26)
530    o pkg/mom_fluxform:
531      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
532      - use parameter "sideDragFactor" in no-slip BC side-drag part.
533      - update output of exp. global_ocean.90x40x15
534    o pkg/mom_vecinv:
535      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
536    o update seaice exp.:
537      use more consistent parameter values (remove "backward compatability only":
538       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
539      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
540       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
541    o update test-exp global_ocean.90x40x15:
542      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
543      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
544      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
545      o turn on zStar & viscA4 in standard set-up (dir input/)
546        and update output files: output.txt & output.dwnslp.txt
547    o new AD-test experiment: obcs_ctrl
548      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
549    o pkg/dic:
550      fix two bugs in handling water vapour pressure in carbonate chemistry
551      and air-sea fluxes. Found by Val Bennington and Galen McKinley
552      (add DIC Option = WATERVAP_BUG to recover old results)
553      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
554    o adding allowInteriorFreezing option to check for water below freezing point
555      at depth and bring the negative heat anomaly to the surface level
556    o pkgs _fields_load:
557      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
558      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
559        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
560        rbcs to get interpolation weights and time reccord number.
561      - fix multi-threading in aim_fields_load.F
562      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
563    o external_fields_load:
564      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
565       interpolation weights) to use in a periodic time-series ; do not divide by
566       time-step to convert to integer:
567       - this fixes case where externForcingPeriod is not multiple of time-step
568          (Thanks to Christopher L. Wolfe)
569       - this fixes case where externForcingPeriod is an odd multiple of time-step
570         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
571      store index of time-record which is currently loaded:
572       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
573       - needed for the adjoint but not yet used because of extensive recomputations;
574         (to be fixed soon)
575    
576    checkpoint62v (2011/04/02)
577    o verification/1D_ocean_ice_column added to test Ian Fenty's
578      pkg/seaice_growth.F modifications for improving sea ice code differentiability
579    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
580      (new velocity statistics after changing maskInW & maskInS definition)
581    o pkg/generic_advdiff with OBCS:
582      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
583      equivalent to assumption of no tracer gradient outside the OB region.
584      This will affect the results if using obcs+biharmonic diffusion.
585      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
586    o pkg/obcs:
587      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
588      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
589      in Interior region. No impact on solution but affects Velocity monitor stats.
590    o pkg/ptracers (adjoint)
591      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
592      tape file for each tracer
593    o model/inc/src and pkg/autodiff: add parameters that allow to turn
594      of parts of the adjoint code at run time. For now, there are only
595      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
596      parameters are set in data.pkg.
597      This is the lazy coward's version of doing this, but still useful for
598      debugging. In order to do it right, everything needs to be moved to
599      pkg/autodiff.
600    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
601      the end; this fixes the adjoint balancing code for open boundaries.
602    o pkg/ctrl:
603      - change behavior of xx_${varname}period to be analogous to exf-conventions:
604        xx_${varname}period =   0.,  means time-independent control part
605        xx_${varname}period = -12., means one-year-periodic monthly control part
606      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
607        clean up ctrl_init a little, remove unused variables
608      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
609      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
610    
611    checkpoint62u (2011/03/15)
612    o model/src:
613      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
614        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
615      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
616        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
617    o pkg/ctrl/obcs/ecco:
618      - remove obsolete, unused, and partially broken code:
619        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
620        ALLOW_CTRL_OBCS_BALANCE
621      - put a stop statement into ecco/cost_obcsvol.F, but also add
622        cost_obcsvol to ecco_ad_diff.list
623    o pkg/ecco: fix counting cost function contributions for obcs (code
624      by Matt M.) and diffkr for diagnostics
625    o pkg/ecco, pkg/ctrl, pkg/grdchk:
626      add cost penalty terms for initial uvel, vvel, eta controls
627      and I/O for prior error files
628    o pkg/mdsio:
629       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
630       (new argument) to check for tiled file in mdsioLocalDir : this fix the
631       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
632    o pkg/ctrl:
633     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
634       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
635       unused and superfluous variables
636     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
637    o pkg/ecco
638     - enable adjoint of Stevens OB
639    o pkg/ctrl/ecco/grdchk:
640      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
641        Fortunately, we do not have any tests for the numerous cpp-flagged
642        option of "obcs as control parameters" so we will never know
643        if this is an improvement (but at least now things compile).
644      - remove an obsolete initialization from ecco_cost_init_barfiles.F
645      - fix some problems within never used ifdefs to make the code compile
646    o pkg/obcs:
647     - Refine Interior mask definition to work with more complex OB (e.g.
648       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
649       read in Interior mask from file. Check if Interior mask is consistent
650       with OB list of indices.
651    o pkg/seaice
652     - beginning code for a seaice tracer package,
653       but currently only used for seaice age: SEAICE_AGE
654       SEAICE_num = 4
655       iTracer = 1: area-weighted ice age
656               = 2: volume-weighted ice age
657               = 3, 4: template for one-year vs. multi-year ice
658       data.seaice has new namelist SEAICE_PARM03 for arrays related to
659       SEAICE_num
660    
661    checkpoint62t (2011/03/05)
662    o pkg/obcs:
663     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
664       then normal component. This ensures that the normal component is set
665       correctly even when it conficts with tangential setting from an other OB.
666       Affects results of test-experiment seaice_obcs: update the output.txt
667    o pkg/obcs:
668     - add code to monitor statistics of dynamical fields at OB.
669     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
670       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
671       - change default: balance the Net inflow through all OB (instead of balancing
672         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
673     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
674       to match Nortern OB inflow (OBCS_balanceFacN=0).
675    o pkg/seaice:
676     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
677    o pkg/seaice (seaice_growth v 1.113):
678     - reverting seaice_growth to v 1.111 in order to have code with exact bit
679       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
680       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
681       runtime flag SEAICEareaFormula is kept but is inactive
682    o model/src:
683     - add new param to scale curvilinear grid distance and area when using
684       a different sphere radius from the grid-files.
685     - test/check multi-threads EXCH applied to local variable (cg2d_x)
686    o adjoint:
687     - enable adjoint of Stevens OB
688     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
689       (a bit delicate because of potentially modified adj. common block structure;
690       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
691    
692    checkpoint62s (2011/02/15)
693    o pkg/seaice (seaice_growth v 1.112):
694     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
695       computing the ice cover tendency from effective thickness tendencies. Include
696       Ian Fenty's formula.
697     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
698       SEAICEareaFormula.
699     - simplify notations for the various d_HEFF/d_AREA terms.
700    o pkg/gmredi:
701     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
702       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
703       add a verification test-run (front_relax.bvp) to test GM_useBVP.
704    o pkg/seaice (seaice_growth v 1.111):
705     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
706     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
707       also melt ice.
708    o pkg/seaice:
709     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
710     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
711    o pkg/cheapaml:
712     - from Nico Wienders: New version of this package.
713    o pkg/flt:
714     - add CPP options to prevent floats to re-enter the opposite side of
715       a periodic domain (default: keep periodicity)
716    o pkg/gmredi:
717     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
718       (needed for multi-dim advection).
719     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
720    o model/src:
721     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
722    o tutorial_tracer_adjsens
723     - extend to NLFS and replace maskC by hFacC
724       (change reference output accordingly)
725    
726    checkpoint62r (2011/01/24)
727    o testreport:
728     - add option -deloutp (-do) to remove output file after successful run
729     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
730       extract exact list of procs from this file ; adjust COMMAND by
731       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
732    o pkg/ecco: replace old ineffective way of penalizing deviations from
733      first guess (of obcs) with code by Matt Mazloff
734    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
735      exf/cal
736      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
737        and handle case of obcs?period == 0
738        Not affected by these changes: There is still an inconsistency in
739        the computation of start/endrec for the obcs variables for ALLOW_CAL
740        defined (see comment by Menemenlis, 7-Mar-2003)
741      - make S/R ctrl_get_gen_rec return something meaningful even if
742        ALLOW_CAL is not defined
743      - ctrl_getobcs?: simplify code so that it does not need to use
744                       S/R exf_swapfields
745    o testreport:
746       allow to test MPI with different number of processors for each experiment:
747       create file "SIZE.h.mpi" in each build dir.
748       Note: update of "-command" argument not yet implemented.
749    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
750      alleviate the need for additional 3D tapes when using
751      the non-inear free surface in the adjoint. This is done
752      by adding an 'update' of hfacc etc. to their current
753      value at the beginning of forward_step.F.
754    o pkg/seaice
755      seaice_lsr: move stress-divergence computations out of outer pseudo-
756      timestepping loop
757    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
758      up, so that the calls of the ctrl_* subroutines are really at the end
759      of the routine.
760    o pkg/gmredi:
761      allow to specify a 2-D horizontal map and a 1-D vertical profil
762      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
763    o pkg/seaice:
764      move lsr iterations from seaice_dynsolver to seaice_lsr.
765    o pkg/seaice:
766      reduce memory footprint of seaice mutldim advection tapes,
767      by using a 2D tape independent of the generic_advdiff ones,
768      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
769    
770    checkpoint62q (2010/12/29)
771    o model/src:
772      - check horizontal grid-spacing for unset or zero/negative values.
773      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
774    o pkg/flt:
775      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
776      - precision of input and output files set according to readBinaryPrec
777        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
778      - initial float position from tiled file was not converted to index space
779        (looks like a bug): fixed to make it similar to initial pos. global file.
780    o global_ocean.cs32x15:
781       change SIZE.h of AD set-up to get same tiling as with MPI.
782       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
783    o model/src:
784       add flag to control printing of domain fields (bathymetry, hFac ...) in
785       ini_mask_etc (call to plot_fieds_xy*).
786    o pkg/thsice:
787       if useEXF, some forcing fields are not valid in overlap: fixed by computing
788       over the interior only + apply EXCH at the end (like with SEAICE advection).
789    o pkg/mdsio:
790      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
791        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
792      - change barrier call for safe multi-threads access to 3-D shared buffer.
793      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
794      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
795        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
796    o pkg/flt:
797      - add fourth-order Runge-Kutta integration
798      - add basic exch2 support (only 1 facet supported so far!)
799    o pkg/mdsio+rw:
800      new S/R to read local (or tile independent) vector (read counterpart of
801       mds_writevec_loc, and front-end write_glvec_rl/rs).
802    o global_ocean.cs32x15: additional input_ad.seaice experiment
803        that uses pkg/seaice rather than pkg/thsice.
804        (using multidim advection for seaice)
805    o towards more F95 syntax for array specification in namelist:
806      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
807        of all verification experiments.
808           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
809          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
810      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
811    o global_ocean.cs32x15: additional input.seaice experiment
812        that uses pkg/seaice rather than pkg/thsice.
813    
814    checkpoint62p (2010/12/17)
815    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
816        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
817    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
818        allow for use of multim. advection in seaice adjoint.
819    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
820      - first attempt to close budgets by taking into account the freshwater
821        flux implied by the sublimation of snow and ice. So far only the
822        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
823        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
824    o eesupp/src:
825      new S/R with new option (NML_EXTENDED_F77) to change array specification
826      from F95 standard to commonly accepted extended F77 form.
827      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
828      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
829      for less tolerant f77 compiler (e.g., pgf77, g77).
830    o globalFiles:
831      commented out in parameter file "data" since it's not safe with MPI
832      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
833      in this case); no longer commented out in restart test (tst_2+2).
834    o add adTapeDir to specify a special directory where adjoint tapes are
835      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
836      and cannot be used together with mdsioLocalDir.
837    o nesting pkgs:
838      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
839      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
840      - add parameter files + utils dir + output from short run on beagle.
841    o pkg/seaice:
842        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
843    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
844      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
845    
846    checkpoint62o (2010/11/25)
847    o pkg/exf:
848      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
849    o pkg/seaice:
850      - seaice_ocean_stress: split a loop for better vectorization of the
851        adjoint code
852      - seaice_growth.F: fix bug in conservation of freshwater connected to
853        capping of heff, put contribution into d_HEFFbyNEG
854      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
855        by something more sensible (parameters that are what their name implies)
856      - change some defaults, so that by default exf-parameters are used for
857        things like rhoAir, cpAir,latent/sensible heat parameters, in order
858        to reproduce the old results, many data.seaice now contain funny values
859        for cpAir and latent heat of sublimation
860    o packages_readparms.F: move exf_readparms up in line so that
861        exf-parameters are visible for other packages (e.g. seaice)
862    o debugMode & debugLevel=2:
863      - differentiate between debugMode & debugLevel=2:
864        debugMode: controls printing of debug messages (sequence of S/R calls).
865        debugLevel: controls printing of algorithm intermediate results and stats.
866      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
867        => allows to print debug-stats without all sequence of call messages.
868      - switch control of debug print from debugLevel to debugMode in many S/R.
869    o pkg/obcs (obcs-sponge):
870        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
871        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
872    o pkg/generic_advdiff:
873      - record overlap minimum size for each advection scheme;
874      - refine criteria on overlap minimum size;
875      - check and stop (in gad_check) if overlap size is too small.
876    o pkg/obcs:
877      - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
878        once, in ptracers_implicit.F)
879      - with seaice: remove test on empty file name in obcs_apply_seaice (always
880        apply OB values when tile has OB)
881    o model/src, coriolis setting:
882      - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
883        useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
884        files (selectCoriMap=3) with any grid.
885      - add parameter "fPrime" for constant second Coriolis coeff (default=0).
886    o pkg/seaice/seaice_growth.F:
887        a few cosmetic changes that reduce the number of lines of code
888    o pkg/obcs: add boundary conditions following Stevens (1990)
889      - the code follows old MOM/NAOSIM code
890      - so far it is only implemented for the eastern and western boundaries
891        and NOT for pTracers
892    o pkg/rbcs:
893      - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
894        beginning of the first rbcs forcing period.
895      - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
896        offline package, i.e., one file per time, labeled by iteration number;
897        deltaTrbcs sets the timestep with which the data was generated;
898        rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
899      - rbcsForcingCycle=0 makes forcing non-cyclic.
900      - make arithmetic safe for negative times and odd forcing periods.
901    
902    checkpoint62n (2010/11/09)
903    o pkg/seaice:
904        fix masking in free-drift S/R ; update results of exp. lab_sea.fd
905    o pkg/obcs:
906       New S/R to copy tracer value from the OB location to narrow band region
907        (width = same as overlap) beyond the OB: preserve OB value (needed for
908        high-order scheme) which were overwritten by EXCH call if in overlap
909        region. Applied to theta, salt, ptracer and advected seaice variables.
910       With seaice: use maskInC in similar way as in gad_advection.F,
911        in seaice_advection.F and advect.F.
912       Update output of experiment seaice_obcs and change exp4 to test OBCS with
913        4th order Adv.Scheme. for pasive salt and ptracer.
914    o tools/genmake2:
915      - when looking for an optfile (not specified), only search for Fortran compiler
916        (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
917      - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
918        (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
919      - set default for CPP to "cpp -traditional -P" (was the case without specifying
920        an optfile, but otherwise default was just "cpp".
921      - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
922      - when "CC" is not set in the optfile, look for possible C compiler
923        (instead of just setting CC=cc)
924      - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
925        => add a ".F" to ".o" rule for source files with no "#include" (such as
926           port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
927      - move gfortran before g77 in list of possible Fortran compiler (consistent
928        with reference compiler switch from g77 to gfortran)
929    o pkg/seaice:
930      o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
931        seaice_check that stops the model, when the CPP flag is used.
932      o seaice_growth.F: make capping of ice volume conserving by returning the
933        capped ice as freshwater to EmPmR. This does not change the verification
934        experiments but will change runs where the capping is acutally active
935    o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
936      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
937         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
938         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
939    o tools/genmake2:
940      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
941      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
942      - clean previous genmake log files before anything else.
943      - change Makefile to remove testreport log files (*.tr_log) and genmake log
944        files only with "CLEAN" target (instead of "Clean");
945    o pkg/generic_advdiff:
946      Change OBCS in multiDim advection (gad_advection.F):
947       Use maskInC to prevent intermediate update of tracer-field in OB regions,
948       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
949       which were applying future time-step OB values.
950      This way, all explicit calculations use current-time-step OB values
951       (simpler and more consistent).
952      Affects results when set-up uses time-varying OBC and multi-dim advection;
953       update output of experiment seaice_obcs.
954    o pkg/seaice:
955      move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
956       this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
957         SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
958      Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
959       but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
960       unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
961    o pkg aim (2010/10/26):
962      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
963        formulation with obliquity, eccentricity, ... as run-time parameters,
964      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
965        upward shortwave radition at the surface (all-sky and clear-sky).
966    o pkg/obcs:
967      - writing sections with globalFiles=T does not work: switch to tiled-files
968        when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
969      - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
970      - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
971    
972    checkpoint62m (2010/10/21)
973    o pkg/seaice: vectorize seaice_solve4temp.F
974      - move iterations loops outside of i/j-loops
975      - requires 2D arrays for TB and effConduct
976      - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
977        modified in this routine
978      - a little bit of clean up, adjusting indentation, etc.
979      - replaced a few TEN**a by exp(a*log(10.)) in new code for better
980        performance and '**TWO' by '**2' (because TWO is a float),
981        replaced ONE, ZERO
982    o eesupp/src:
983       fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
984    o pkg/seaice/seaice_growth.F
985      Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
986      merging process. The merged routine has two branches, and one activates the 'evolution'
987      branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
988      In summary, here is what the '10/10 revision' did consist of
989        part 1: seaice_growth.F revisions 1.71 to 1.75
990          - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
991            The emphasis here was on improving readability (e.g. by trying to use meaningful
992            variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
993        part 1.5:
994          - revising the lab_sea experiment to make it a more useful (i.e. stable
995            and representative of an actual model run). This was done by generating a
996            (winter) pickup to start from, switching back the main experiment dynamic
997            solver from evp to lsr, having one of the experiments use the free drift solution.
998        part 2: seaice_growth.F revisions 1.76 to 1.85
999          - Sorting out hard-coded constants that prevented heat and fresh water conservation.
1000          - Sorting out the various fields units and sign (set early on and reset at the end)
1001            to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
1002            fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
1003          - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
1004            and simplifying logical expressions to further improve readibility.
1005        part 3: seaice_growth.F revisions 1.86 to 1.89
1006          - Re-organize the blocks of code more logically.
1007          - Merging the '_if.F' pieces that add something new.
1008    o pkg/thsice:
1009      - vectorize thsice_solve4temp and thsice_get_exf.
1010        Problem: thsice_solve4temp has an unvectorizable statement that
1011        might also be problematic for TAF
1012      - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
1013        does not change the verifcation experiment, but will change all
1014        experiments that have this flag undefined (not tested in verification);
1015        a little reorganization to save a few 2D fields and recomputations
1016      - 1st step of revisiting thsice adjoint (major recomp. sorted out)
1017      - 2nd step:  fix some store dirs
1018        o seems to work somewhat, i.e. using ifort but not g77
1019        o likely cause are incomplete init. or recomputation
1020        o start verification/global_ocean.cs32x15/input_ad.thsice
1021    o pkg/obcs: add support for exch2
1022      - the position of the boundary and prescribed values are specified using
1023        a global domain with exch2 facets stacked
1024        - in x for N,S boundaries (like W2_mapIO=-1)
1025        - in y for E,W boundaries (so E,W boundaries do not overlap)
1026    o pkg/mdsio: add support for writing global sections with exch2
1027        file layout is as for obcs described above:
1028        - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
1029        - for y-z sections, facets are stacked in y
1030    o pkg/thsice:
1031       - change a few routines for better vectorization: thsice_albedo.F,
1032         thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
1033         not affected, but in particular the latter routine has changed
1034         dramatically (not necessarily easier to read now).
1035       - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
1036       iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
1037    o verification/lab_sea:
1038      - overhaul of the forward model experiments. The main motivation
1039        for this revision is that lab_sea has proven quite fragile (when
1040        changing the sea-ice code, and switching platforms) to a point
1041        when failures were very hard to attribute to specific code problems.
1042      - the suspected reason for this fragility is noise amplification by evp so,
1043        to start with, we decided to replace evp with lsr in the main experiment.
1044      - the input.lsr experiment thus became obsolete and was removed.
1045      - it was replaced with the input.fd experiment that uses an
1046        analytical "free drift" solution as the ice velocity field.
1047      - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
1048        will hopefully allow us to discriminate problems due to dynamic solvers
1049        from problems due to the thermodynamic code. input.salt_plume (lsr) allows
1050        us to test additional options, along with the salt plume package.
1051      - Finally a pickup was generated (at the end of a one year run) to
1052        make the tests more representative of an actual model run. Previously
1053        the tests starting point was a 1m thickness of ice everywhere.
1054    o pkg/seaice:
1055      - introducing S\R seaice_freedrift.F that compute the
1056        analytical solution to an approximate ice momentum
1057        equation (i.e. the simple stress/coriolis balance).
1058      - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
1059        of the free drift velocity field, and enable its use.
1060        To actually use the free drift solution as the model ice
1061        velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
1062    o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
1063    
1064    checkpoint62l (2010/10/04)
1065    o pkg/seaice:
1066      -fix the USE_ORIGINAL_SBI version (for variable freezing point);
1067      -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
1068       version (with USE_ORIGINAL_SBI undef);
1069    o add hooks for new packages OASIS, the package will follow
1070      (hooks exclude the seaice pkg for now)
1071    o pkg/autodiff: ALLOW_AUTODIFF_WHTAPEIO
1072      Option to use mdsio_read_whalos.F/mdsio_write_whalos.F,
1073      rather than mdsio_readvector.F/mdsio_writevector.F, within
1074      adread_adwrite.F to read/write adjoint-related tapes to disk.
1075    o eesupp and pkg/mdsio: ALLOW_WHIO
1076      Option to write/read 2D fields to files including tiles halos.
1077      The main purpose is for adjoint related "tape I/O".
1078      The secondary purpose is for debugging phases.
1079      A word on those rather specifically intended purposes.
1080      The code was meant to be stripped down to the bare minimum.
1081      Typically, there is a unique and basic mapping to the global
1082      buffer (tile by tile, then proc by proc, then level by level), and
1083      byteswaps and meta-files are omitted. Indeed the (*_WH*) code is not
1084      meant to generate user friendly outputs of various shapes and forms.
1085      Rather it is intended, for the knowledgeabale developers,
1086      to be largely independent of the many mdsio options, to allow
1087      outputs of tiles+halos in debugging phases and in adjoint runs,
1088      and to allow some flexibility in tuning (adoint) I/O depending on each
1089      file system behavior. With regard to tuning, most of the potential knobs
1090      (to leave files open, to allocate the I/O indep. of usesinglecpuio,
1091      to specify directories, to specify the typical size of I/O calls, etc.)
1092      are not yet included, and will be added if they prove useful.
1093    o pkg/seaice:
1094       fix uninitialised arrays in USE_ORIGINAL_SBI version of seaice_solve4temp.F
1095    o pkg/seaice:
1096       new S/R seaice_solve4temp.F: this is the merged version of Ian Fenty
1097       code (seaice_budget_ice_if.F) which enable to recover old standard
1098       code (seaice_budget_ice.F) when option USE_ORIGINAL_SBI is defined.
1099       temporary: add "#define USE_ORIGINAL_SBI" at the top of seaice_solve4temp.F.
1100    o model/src (rStar):
1101       use simple average (not area weighted) of rStarFac at U,V point when using
1102       vectorInvariant and selectKEscheme=1,3 (consistent with mom. vertical advection)
1103       update output of exp. fizhi-cs-32x32x40 and fizhi-cs-aqualev20.
1104    
1105    checkpoint62k (2010/09/17)
1106    o adjoint
1107       * changed verification/global_ocean.cs32x15 ; adjoint now tests
1108         Adams-Bashforth 3 + NLFS + RSTAR
1109       * some more modifs required for ECCO-GODAE v4
1110    o pkg/seaice
1111       add SEAICE_AGE_VOL option to use volume instead of area for
1112       integrating SEAICE_AGE
1113    o model/src:
1114       first check-in of sigma & hybrid-sigma coordinate code ; also includes
1115       non-linear free-surface parts ; but pressure-gradient not yet coded.
1116    o pkg/ptracers:
1117       option for ptracer to convert Salt Relax into additional EmP.
1118        tested in exp. global_ocean.90x40x15.dwnslp (update output)
1119    
1120    checkpoint62j (2010/08/25)
1121    o pkg/ggl90:
1122       other minor changes: remove 3-D temp array gTKE (+ add argument myIter)
1123    o pkg/dic: car_flux.F, phos_flux.F
1124      - reduce number of exp-calls in order to improve performance
1125      - clean up a little (replace fields by their macros, etc., fix
1126        typo in CPP-flag)
1127    o pkg/ggl90: minor changes
1128      - GGL90diffKrS was removed --> always use GGL90diffKr
1129      - GGL90viscAr was removed --> replaced with GGL90viscArU, GGL90viscArV
1130      - hack of mxlMaxFlag=2 --> ensure mixing between first and second level
1131        (commented out for now)
1132      - change in max/min operations to ensure that smoothing is ok
1133      - smoothing of GGL90viscAr was moved to ggl90_calc.F (as done for GGL90diffKr)
1134      - always use diffKrNrT as background profile (i.e. never use diffKr field)
1135    o pkg/cfc: bug fix, AREA(i,j,1,bi,bj) -> AREA(i,j,bi,bj)
1136    o pkg/dic:
1137      - model/src/impldiff.F: if TARGET_NEC_SX, extend loop ranges for better
1138        vectorization
1139      - small bug fix in insol for the unlikely case of a cartesian grid
1140      - towards vectorizing the dic package: bio_export.F, car_flux.F, phos_flux.F
1141        + now vectorize, which also removes adjoint recomputations;
1142        + replace integer maksp1 by _RL maskp1
1143        + replace a**x by exp(x*log(a)) in phos_flux.F for speed
1144    
1145    checkpoint62i (2010/07/21)
1146    o pkg/flt:
1147      - with OBCS: stop floats which enter the OB region
1148    o model/src:
1149      - use tempVertAdvScheme & saltVertAdvScheme (instead of horizontal ones)
1150        for implicit vertical advection.
1151    o pkg/seaice:
1152     - account for melting in seaice age evolution.
1153     - remove double counting of seaice ridging effect on seaice age.
1154    
1155    checkpoint62h (2010/06/18)
1156    o pkg/exch2:
1157     - remove exch2_*xy_rx files: call was replaced with exch2_*3d_rx(myNz=1).
1158    o tools/genmake2
1159      - remove "-pdefault" option: redundant with the use of "packages.conf";
1160      - remove file pkg/pkg_default : set the default as a pkg group
1161        ("default_pkg_list") defined in pkg/pkg_groups;
1162      - fix for case pkg/pkg_depend is missing (was hanging before);
1163      - add option "-pgroups" to specify a different pkg_groups than the default.
1164    o verification/adjustment.cs-32x32x1:
1165       add a "minimal" set-up test (code_min & input_min) which only compiles
1166       eesupp/src and the 2 pkgs (exch2 & debug) which don't need model/src & inc.
1167    o tools/genmake2
1168      - extend pkg_depend rules to model & eesupp (e.g., if model depend on [pkg]))
1169      - fix details of checking for mnc & profile pkg when NetCDF is unavailable.
1170    o pkg/exf: merge exf_bulk_largeyeager04 into exf_bulkformulae because these
1171      files are nearly the same anyway.
1172      Step 1: make exf_bulkformulae look like exf_bulk_largeyeager04:
1173       - redefinition of tau(i,i) (by a factor of ustar)
1174       - 1./exf(Const/T) -> exf(-Const/T) (big change in the results)
1175       - replace rhonil by rhoConstFresh in computation of evap (bug fix)
1176       - replace u/vstress=tau*rd*ws*cw by tau*rd*u/vwind (changes results)
1177       - replace
1178         rd(i,j)= rdn(i,j)/(exf_one - rdn(i,j)/karman*psimh )
1179         shn    = sh(i,j,bi,bj)*rd(i,j)/rdn(i,j)
1180         by
1181         shn    = sh(i,j,bi,bj)/(exf_one - rdn(i,j)/karman*psimh )
1182         (changes results)
1183       -> exf_bulkformulae v1.22,
1184          update verification experiments lab_sea, offline_exf_seaice, seaice_obcs
1185          (lab_sea: output.hb87.txt 1.11, output.lsr.txt 1.25, output.salt_plume.txt 1.13,
1186                    output.txt 1.63
1187           offline_exf_seaice: output.seaicetd.txt 1.7
1188           seaice_obcs: output.txt 1.10)
1189      Step 2: do the actual merge and remove exf_bulk_largeyeager04.F
1190       -> exf_bulkformulae v1.23,
1191          unfortunately requires updating lab_sea.salt_plume (6 matching digits),
1192          and global_ocean.cs32x15.icedyn (only 11 matching digits)
1193      Also update output_adm of exp. lab_sea (all 4) and offline_exf_seaice.
1194    o adjoint of exch-1:
1195     - pass high-level EXCH S/R through TAF (eesupp/src/exch_ad_diff.list)
1196       (note: was already like this when using EXCH-2) and remove flow dir
1197       and hand-written AD version of high-level EXCH S/R (pkg/autodiff);
1198     - provide flow-dir for low-level exch1 S/R (eesupp/src/exch1_ad.flow);
1199     - update pkg/exch2 diff list.
1200    
1201    checkpoint62g (2010/05/19)
1202    o eesupp/src (exch-1):
1203     - split exch_rx.F into Forward S/R (exch1_rx.F) and Adjoint S/R (exch1_rx_ad.F)
1204       and remove argument "simulationMode"; same thing for all exch_*rx_cube.F
1205       (renamed to exch1_*rx_cube.F).
1206     - change accordingly exch_*_rx.template and AD version in pkg/autodiff
1207       to call new exch1 S/R ; update Makefile and .cvsignore.
1208     - replace call to exch2_xy_rx S/R with exch2_*3d_rx(myNz=1) (will remove
1209       exch2_xy_rx later)
1210      Note: after updating your code, need to run "make clean" in eesupp/src
1211    o test experiment bottom_ctrl_5x5:
1212       new output_adm.txt with fewer grdchk & less monitor output.
1213    o model/src:
1214      remove the call to ini_cori in initialise_varia.F (just keep the usual one
1215       in initialise_fixed.F). More consistent with coriolis & horizontal grid
1216       beeing treated in the same way (ini_grid is not called a 2nd time).
1217    o pkg/exf:
1218      - rewrite exf_bulk_largeyeager04.F for better vectorization, changes
1219      global_ocean.cs32x15/input.icedyn (11 digits of agreement), updated
1220      - fix adjoint (used worked for ALLOW_ATM_WIND defined, works for this now)
1221      - cosmetic changes to exf_bulkformulae.F to make it look more like
1222        exf_bulk_largeyeager04.F
1223    o eesupp/src (exch-1):
1224      - Fix AD EXCH code for 2-D domain special cases (Nx=1 or Ny=1).
1225      - Separate buffer filling and MPI sending: allow EXCH-1 to work for local
1226        array (non-shared) when using MPI+MTH. Also reduces number of BARRIER
1227        (even without using MPI).
1228      - Message mode: move RecvAck setting (indicator of buffer being ready)
1229        from send_put to recv_get S/R (was useless before, but not sure if
1230        it's much more useful now);
1231      - Switch the order of sync: MPI-proc 1rst and then threads;
1232      - take out spin-waiting code (#undef EXCH_USE_SPINNING), use BARRIER instead.
1233      - fix AD code for communication mode ='get' (but not used).
1234    o model/src:
1235      initialise dPhiHydX,dPhiHydY inside calc_grad_phi_hyd.F (so that TAF does
1236      not drop it in S/R mddynamics, producing NaN in hs94.1x64x5 AD-test exp).
1237    o utils/matlab/rdmnc.m: adapt to be able to use the generic matlab netcdf API
1238    o pkg/ctrl: require a specific set of control variables and exf-flags for
1239      adjoint of seaice (stop in ctrl_check.F if conditions are not satisfied)
1240    o model/src:
1241     a) 1rst version of a new driver S/R to turn-off output freq and flags after the
1242       1rst forward sweep, to avoid over-writing output files during recomputations
1243       recomputations (& grdchk); called from cost_final.F (& ctrl_init_ctrlvar.F ?)
1244     b) 2nd version:
1245      - add specific pkg S/R for seaice & ptracers (called from S/R TURNOFF_MODEL_IO);
1246      - switch-off more output flags (exf_monFreq, chkPtFreq, dumpInitAndLast,
1247         writePickupAtEnd) + seaice & ptracers output;
1248      - do not switch off MNC flags (otherwise, won't get admonitor netcdf file)
1249    o model/src:
1250      - new S/R rotate_uv2en_rl (..._rs) that rotates vector fields.
1251    o pkg/exch2:
1252      - remove "simulationMode" from arg. list of S/R EXCH2_RX1,2_CUBE ;
1253      - add argument "signOption" to EXCH2_RX1_CUBE (will be needed for SM exch).
1254    o pkg/autodiff & exch2:
1255      process exch_uv_agrid_3d_rx.f & exch2_uv_agrid_3d_rx.f through TAF
1256      (for now, only if ALLOW_EXCH2 is defined).
1257    o pkg/autodiff:
1258      - include PACKAGES_CONFIG.h in exch*ad.flow & exch*ad.F
1259        (not supposed to be in CPP_OPTIONS.h) to get ALLOW_EXCH2 defined correctly.
1260       + clean-up comments (_RS is not always real*4)
1261      - fix bug in ADEXCH_UV_3D_RX (without EXCH2, was calling the forward exch S/R)
1262      - add a stop in ADEXCH_UV_AGRID_3D_RX if trying to use it with EXCH2:
1263        was calling a forward exch2, which is wrong ; used in SEAICE & EXF pkgs.
1264    o testreport (AD-tests):
1265      no longer link files from dir "../input" (1rst link files from
1266      "../input_ad.[xx]" if secondary test "xx" and then from "../input_ad")
1267    
1268    checkpoint62f (2010/04/29)
1269    o model/src/the_main_loop.F:
1270      adjust store directives for seaice evp and multicategory according to
1271      pkg/ecco/the_main_loop.F
1272    o adjoint:
1273      global_sum_ad was incomplete (noted many times by many people ;)
1274      nice description by Jean U. as follows:
1275      * allreduce(var) in global_sum.F can be interpreted as
1276        reduce(sum) followed by broadcast of sum.
1277      * The adjoint of that is
1278        sum(adjoint) followed by broadcast(summed adjoint value)
1279        or in other words, allreduce(sum, adjoint vars)
1280      We were missing the sum(adjoint)!
1281      Benign, except(!) for "global" scalars appearing in tile loops (bi,bj)
1282      (noted by J.M. Campin, e.g., in cost_ssh_mean, variable offset).
1283      The fix should produce 16-digit accuracy between
1284      single-CPU multi-tile (e.g. nSx=2, nPx=1) and
1285      multi-CPU single-tile (e.g. nSx=1, nPx-2)
1286      We'll probably change this yet again shortly
1287    o eesupp/src:
1288      - fix global_sum_r4 (wrong from previous modif in Jun 2009; ever used ?)
1289    o pkg/icefront
1290      - ALLOW_SUBGLACIAL_RUNOFF option adds capability for time-evolving
1291        specification of addmass array based on a 2D field, which is added
1292        at bottommost wet level at each horizontal location.
1293    o model/src:
1294     horizontal grid initialisation (other than curvilinear): add code for Exch2 IO
1295     layout; (not always compatible with delX,delY setting; commented out for now).
1296    o pkg/exch2:
1297     change tile to processor setting (case nSy*nPy > 1): allows default model mapping
1298     (myX and myYGlobalLow) to be used for simple (1 facet, no blank tile) config.
1299    
1300    checkpoint62e (2010/04/15)
1301    o pkg/obcs:
1302      - fix wrong index in OBCS_SPONGE_V for Eastern-OB (reported by David Hebert).
1303    o pkg/dic:
1304      -fix bug in fe_chem.F for multi-tile (nSx*nSy > 1) set-up;
1305        (note: not presently tested in any forward verification exp.)
1306       update tutorial_global_oce_biogeo AD output file.
1307    o pkg/exf:
1308      - account for the variation of albedo as a function of zenith angle
1309        by defining ALLOW_ZENITHANGLE in EXF_OPTIONS.h
1310    o build_options:
1311     - rename "linux_ia64_ifort+mpi_ice_nas" to "linux_amd64_ifort+mpi_ice_nas"
1312    o pkg/dic:
1313      change DIC atmos-CO2 box (method 3, dic_int1=3) initialisation & restart:
1314      - use binary pickup file for restart;
1315      - initialise atmos-CO2 box from dic_pCO2 parameter;
1316      - fix multi-threaded.
1317    o pkg/rbcs:
1318     - clean-up RBCS code: add RBCS_OPTIONS.h file ; fix multi-threaded ;
1319       change (+ fix IO calls) type of array RBC_mask from _RL to _RS.
1320     - add RBCS to exp4 passive tracer 01 (rbcs was previously untested)
1321       and update output.txt
1322    o pkg/kpp:
1323     - add diagnostics for KPP non-local flux of Temp, Salinity and pTracers;
1324     - change diagnostic of KPP non-local term: output average of KPPghat*KPPdiffKzS
1325       (= ratio of KPP non-local (salt) flux relative to surface-flux) when
1326       using pkg/timeave & pkg/diagnostics (diag 'KPPghatK' replaces 'KPPghat ');
1327     - change pkg/offline to read-in average KPPghat*KPPdiffKzS from file
1328       KPP_ghatKFile (instead of the average of KPPghat from file KPP_ghatFile).
1329    o pkg/offline:
1330      fix bug in S/R OFFLINE_FIELDS_LOAD regarding surfaceForcing conversion factor
1331      (bug was added in version 1.10 on 2007-08-23).
1332    o pkg/offline:
1333      - no need to specify periodicExternalForcing, etc ... to use offline pack
1334      - offline input files no longer just single prec --> parameter offlineLoadPrec
1335    o verification/lab_sea:
1336      change AD test to multi-tile setup and update all 4 AD output.
1337      NOTE: while cost function values remain very similar,
1338      gradients are very different, although gradient checks are self-consistent
1339      Should try to get to the bottom of this (cost function summation order?)
1340    o pkg/dic:
1341      in carbon_chem.F, replace log10 (AUTODIFF) with explicit form to avoid
1342      a weakness of TAF that drops part of double precision in log10 derivative.
1343      <= changes removed since problem has been fixed in current TAF version 1.9.71
1344      update AD output of exp. tutorial_dic_adjoffline & tutorial_global_oce_biogeo.
1345    o pkg/ecco:
1346      add missing "_d 0" in cost_readers.F, cost_readtopex.F & cost_readtopexmean.F
1347      update all 4 lab_sea AD output.
1348    
1349    checkpoint62d (2010/03/22)
1350    o build_options:
1351      remove '-r8' (and '-i4') from linux_*pgf and linux_*ifort optfiles.
1352    o remove unbalanced quote (single or double) in commented line of source code
1353      (may cause some warning with some preprocessor/makedepend versions).
1354    o pkg/seaice:
1355      fix seaice_model.F for adjoint (gael) and update AD results of experiments
1356       lab_sea (std + evp + noseaicedyn) and offline_exf_seaice.
1357    o testreport:
1358      add option '-runonly' (short: '-ro') to just do the run part (without make).
1359    o eesupp: remove JAM communication code (obsolete).
1360    o add option to genmake2 & testreport to switch "_RS" type to "real*4"
1361      (if allowed in CPP_EEOPTIONS.h); update default CPP_EEOPTIONS.h and return
1362      to default CPP_EEOPTIONS.h for exp. inverted_barometer & solid-body.cs-32x32x1
1363      (update also the output).
1364    
1365    checkpoint62c (2010/03/02)
1366    o tools/build_options :
1367       move (some) old optfiles from build_options/ to build_options/unsupported/
1368    o model/src and pkg/exf
1369       surface relaxation -- separating data and data.exf options
1370       The point is to ensure that we specify the surface relaxation
1371       either in data or in data.exf (but not half and half) and to
1372       avoid an accidental relaxation to 0 (which happened if a time
1373       scale was specified but the file name was left empty)
1374    o model/src model/inc and pkg/mom_common
1375       ALLOW_3D_VISCAH/ALLOW_3D_VISCA4 => 3D specification of Viscosity
1376       => addition to the viscosity field as computed by others schemes
1377    o tools/build_options:
1378      - rename "_generic_mpi" -> "+mpi_generic" (like other "+mpi" optfile)
1379        but keep the former optfile for few weeks for smooth transition
1380    o pkg/ecco
1381      - allow user defined cost function contributions
1382         CPP: ALLOW_USERCOST_CONTRIBUTION
1383         USAGE: compute contributions in cost_usercost_all.F
1384      - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
1385          the two options are complementary.
1386    o pkg/smooth
1387      - migration from contrib to the main repository
1388    
1389    checkpoint62b (2010/01/26)
1390    o pkg/monitor:
1391      - change back mon_printstats_rl.F & mon_stats_rl.F and add a stop
1392        (in case someone forgot to update customized pieces of code)
1393    o nonHydrostatic:
1394      - add Non-hydrostatic free-surface form (selectNHfreeSurf=1)(not fully tested);
1395      - add a simple 2-D experiment (short_surf_wave) to test it.
1396    o pkg/icefront:
1397       adding the shell of, and the hooks to, a new package that
1398       will model melting and freezing of vertical glacier ice fronts
1399    o momentum:
1400      add diagnostics of momentum tendency from Hydrostatic pressure gradient
1401       (without surf.pressure term: would need a 2nd filling since implicit term).
1402    o add 3 "_d 0"s so that fizhi compiles with xlf on iblade, and replace
1403      two " &end" by " &" (in fizhi-cs-*) because S/R NML_SET_TERMINATOR
1404      cannot deal with the former
1405    o cleaning:
1406      - remove all (except OpenAD) old TLM output from results_ad dirs.
1407      - remove unused S/R (MDSWRITEMETA, DIAGNOSTICS_ADD2LIST, old DFILE IO S/R)
1408      - comment out maskH definition (replaced by maskInC)
1409    o pkg/monitor:
1410      - change mon_printstats_rl.F & mon_stats_rl.F (were similar to mon_writestats_rl
1411        & mon_calc_stats_rl) to be the RL equivalent of mon_printstats_rs & mon_stats_rs.
1412    
1413    checkpoint62a (2010/01/15)
1414    o model/src:
1415      - bottom pressure diagnostic: correct for r* (when nonlinFreeSurf >= 4)
1416  o pkg/diagnostics:  o pkg/diagnostics:
1417    - add optional level number diagnostics (i.e., level number to be define    - add optional level number diagnostics (i.e., level number to be define
1418      explictly with S/R DIAGNOSTICS_SETKLEV) with parser-code(10)="X".      explictly with S/R DIAGNOSTICS_SETKLEV) with parser-code(10)="X".

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