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revision 1.1425 by mlosch, Mon May 9 08:56:59 2011 UTC revision 1.1528 by mlosch, Mon Nov 7 09:21:02 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/ctrl:  o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
8      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
9      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
10      does not even come with an F77 compiler anymore, this should not be
11      a limitation
12    
13    checkpoint63e (2011/11/06)
14    o pkg/seaice adjoint of LSR:
15      - substantially rework STORE dirs.
16      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
17        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
18        and only perform SOLV_MAX_FIXED adjoint iters.
19        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
20        always goes to same record, meaning that the last forward field will be
21        the one used in the adjoint - an approximation.
22      - now produces non-zero LSR-related gradients, and acceptable gradients for
23        An's zonal (x-z) test case (to be checked in)
24      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
25        (but these are screwed up by the thermodynamics in the first place);
26        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
27        output_adm.txt also reflects changes to seaice_lsr
28      - global_ocean.cs32x15:
29        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
30          (output_adm.seaice.txt was updated)
31        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
32          (output_adm.seaice_dynmix.txt)
33    o test-exp. exp4+stevens:
34      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
35    o pkg/seaice (lsr solver):
36      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
37        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
38      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
39      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
40        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
41      - compute (with new S/R) and print initial (+ free-driff sol. if available)
42        and final residual of linearised system.
43    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
44      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
45    o pkg/obcs: Stevens BCs (still only for east and west)
46      - fix Stevens BCs by using intermediate velocities of previous
47        time step as "baroclinic" contribution rather velocity of one grid cell
48        inside the boundaries; more consistent but makes the entire treatment
49        more complicated, requires new pickup files and two new S/Rs:
50        obcs_copy_uv_n and obcs_save_uv_n
51        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
52        (undefined by default)
53      - silently move computation of some grid factors into separate loops to
54        save some recomputations
55      - add a hack for non-linear free surface
56      - add a verification experiment to exp4 that tests this code
57    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
58    
59    checkpoint63d (2011/10/25)
60    o pkg/obcs + seaice-dynamics:
61      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
62        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
63        values (consistent with an implicit method).
64      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
65        return to older implementation (same results as before); note that none of
66        the "experimental" OBCS_SEAICE options are implemented in the new version.
67      - switch test exp. seaice_obcs to use new version (update output).
68    o pkg/seaice:
69      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
70      - add parenthesis in Water-Ice drag calculations (evp & lsr);
71      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
72        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
73      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
74        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
75    o pkg/layers:
76      - Include potential density as new coordinate (Thanks to David Munday)
77    o pkg/dic:
78      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
79        carbonate computation/output to CALC_PCO2_APPROX
80    o pkg/generic_advdiff
81      - make TAF generate code that vectorizes:
82        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
83    o model/src:
84      - improve vectorization also for adjoint code of
85        solve_tridiagonal and solve_pentadiagonal. As this requires up to
86        5 new 3D-fields, this code is only turned on for the combination of
87        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
88        for singular matrix check (only for TARGET_NEC_SX).
89      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
90        ALLOW_AUTODIFF. This flag now needs to be set outside of
91        solve_tri/pentadiagonal.F
92    o pkg/exf:
93      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
94        optional namelist EXF_NML_OBCS).
95      - add many debug-print (to trace down where pkg/cal error msg comes from)
96    o pkg/mom_vecinv/mom_vi_hdissip.F
97      - rearrange loops so that vectorization is improved and in particular
98        the adjoint routine vectorizes. The code is a little longer now, but I
99        think easier to read.
100        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
101    o pkg/seaice:
102      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
103    o pkg/exch2:
104      - alternative code (without tile x tile matrix) for cumulated (global) sum;
105        used as default; keep using matrix version in adjustment.cs-32x32x1.
106    o tools/build_options:
107      - after merging some MPI and/or multi-threads specific optfiles so that
108        the modified default optfile support both built (using genmake2 -mpi
109        for the MPI built, using genmake2 -omp for OpenMP built),
110        move now obsolete optfiles to tools/build_options/unsupported/
111       (add copy of email sent to support list in doc/optfiles_changes.txt)
112    
113    checkpoint63c (2011/09/28)
114    o pkg/ebm:
115      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
116        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
117    o pkg/seaice (SItracer pickup)
118    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
119      To be done:
120      - thorough testing of missing fields in S/R seaice_read_pickup
121      - thorough matching between generic tracers and specific fields used
122        (e.g. volume-weighted age, area-weighted age, salinity, ...)
123    o pkg/grdchk:
124      - all procs calculate and print finite-difference gradient (for testreport)
125      - change description output used by testreport;
126      - AD testing: also compare and report Finite-difference gradient;
127        => update all output_adm*.txt
128    o test exp. global_ocean_ebm:
129      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
130        and turn on exactConserve; update (fwd) output.
131    o pkg/seaice (LSR):
132      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
133      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
134        * identical results with non-CS topology (but save up to half of EXCH calls)
135        * no much changes in cs-32 verification tests since no ice at face edges
136         (differences due to convergence criteria, since nb of iterations changed)
137        * expect some differences on lat-lon-cap grid.
138        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
139    o pkg/exch2:
140      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
141        many tiles); until alternative coding is added, just add a stop.
142    o pkg/kpp:
143      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
144        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
145    o optfiles:
146      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
147        into corresponding standard one, which now support different build:
148        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
149      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
150    o pkg/obcs (seaice):
151      - add missing EXCH for uIce,vIce after applying OBCS;
152      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
153        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
154        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
155      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
156      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
157        and eedata.mth for MPI and mutlti-threaded testing.
158    o pkg/flt:
159      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
160      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
161      - fix pickup and trajectories + profiles output with multi-threads;
162      - add parameter to select group of fields to write along trajectory and
163        profile (default unchanged);
164      - only call PORT_RAND* function when flt_noise <> 0;
165      - add multi-threaded test for verification exp. flt_example.
166    o eesupp/src:
167      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
168      - USE_OMP_THREADING: check that number of threads (from eedata) matches
169        actual number (from env.var. setting).
170    o pkg/ebm:
171      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
172      - add multi-threaded test for verification exp. global_ocean_ebm
173    
174    checkpoint63b (2011/08/29)
175    o pkg/ebm:
176      - fix sign of runoff;
177      - update directly forcing fields (Qnet,EmPmR) to use standard
178        external_forcing_surf.F (remove ebm_forcing_surf.F);
179      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
180      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
181        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
182      - update global_ocean_ebm parameters file data and update output (fwd+ad).
183    o verification/matrix_example:
184      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
185        MPI and mutlti-threaded testing.
186    o pkg/matrix:
187      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
188      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
189      - fix for multi-threaded (remove DATA statement);
190      - use standard DIFFERENT_MULTIPLE function;
191      - add MATRIX_OPTIONS.h
192    o verification/matrix_example:
193       To allow to split the domain in several tiles, change the domain size
194        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
195        Western side) of land points.
196    o (*_)write_pickup:
197      - fix few bugs in mypackage_read/write_pickup.F
198      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
199        array of length 1 (was caught by compiler syntax-check).
200    o pkg/diagnostics (velocity potential solver):
201      - fix initialisation of main diagonal matrix (for overlap values)
202    o tools/build_options:
203      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
204        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
205      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
206        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
207        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
208        and use "-devel" testreport option for standard testing on baudelaire.
209    o pkg/grdchk:
210      - Assume that all gradient-check position are within the same tile
211        corresponding to global indices (iGloTile,jGloTile) and that
212        positions (i,j indices or nbeg) are local to this tile;
213      - set tile local-indices and proc. number according to tile global-indices;
214      - remove grdchkwhichproc from namelist (retired param);
215      - send adjoint gradient to all procs so that all procs print it to STDOUT;
216      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
217    o adding package bbl (Bottom Boundary Layer)
218      description in MITgcm/pkg/bbl/bbl_description.tex
219      example/test experiment in MITgcm_contrib/bbl
220    o adjoint verifications
221      - changed 5 experiments to multi-tiles
222        * global_ocean.90x40x15
223        * obcs_ctrl
224        * offline_exf_seaice
225        * tutorial_dic_adjoffline
226        * tutorial_tracer_adjsens
227        changed reference output for those that crossed tile boundaries
228        (changed choices of gradient check positions)
229      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
230      - temporary bug fix in grdchk_loc.F for obcs
231    o genmake2 & testreport
232      - add target "obj" (just for OBJFILES files) to Makefile;
233      - add option to specify FEXTRAFLAGS on command line.
234    o pkg/mypackage:
235      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
236    
237    checkpoint63a (2011/08/02)
238    o pkg/diagnostics (velocity potential):
239      - fix velocity-potential calculation when using OBCS: balance net inflow
240        at each level (new S/R OBCS_DIAG_BALANCE).
241      - fix some of the problems with OBCS in stream-function calculation.
242    o pkg/exf/exf_readparms.F
243      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
244        EXF_NML_OBCS) more consistent, so that you need not have these lists
245        in data.exf when they are not used.
246    o optim/optim_readdata.F:
247      - add some output about obcs variables that might help debugging
248      - add a check about nvarlength
249    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
250    o pkg/diagnostics (velocity potential):
251      - fix mask for OBCS (still problems in stream-function with OBCS);
252      - add specific parameter (default = main code CG2D params) for solver;
253      - in case of poor convergence, use solution corresponding to lowest residual.
254    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
255      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
256      and should be avoided where possible.
257    o model/src (rStar):
258      - include r* effect on reference-state (PhiRef) in totPhiHyd
259        (so that it's really the potential anomaly at the cell center);
260        affect solution only if z* with full pressure in EOS.
261      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
262        update output (because of z* in totPhiHyd and viscA4 changes);
263      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
264        @ constant r) until interpolation at constant r is implemented.
265    o pkg/diagnostics
266      - fix RCENTER diagnostics in case cell center is not at interface middle
267    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
268      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
269      that THETA and SALT are "conservative temperature" and "absolute
270      salinity"
271    o pkg/ctrl
272      - fix computation of endrec in s/r ctrl_init_rec
273      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
274    o pkg/seaice/seaice_growth.F
275      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
276        remove then obsolete STORE directives
277      - fix STORE directives for tice and tices, so that only the
278        appropriate part of the fields are stored (and not the entire
279        field); update global_ocean.cs32x15.seaice AD output.
280      - cosmetic changes: adjust CPP flags and indentation for better
281        legibilty
282    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
283      Chris Wilson)
284    o pkg/gmredi:
285       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
286       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
287    
288    checkpoint63  (2011/07/11)
289    o pkg/exch2:
290     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
291     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
292       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
293       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
294    o pkg/diagnostics:
295     - deal with pairs of post-processed diags which are computed together; in
296       particular, re-order list of diags within 1 file to save 2nd computation.
297     - add S/R to compute velocity stream-function (called after velocity-potential
298       calculation) from divergence free transport -> new diagnostics "PsiVEL".
299     - add parameter to select grid-point location where PsiVEL == 0.
300    o eesupp/src:
301       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
302       (specific S/R needed with exch2 topology - for now, just print an error msg)
303    o pkg/shelfice
304     - Implement friction velocity-dependent transfer coefficients following
305       Holland and Jenkins, JPO, 1999
306       Original code by M. Losch with small modifs.
307       Enable with CPP option SHI_ALLOW_GAMMAFRICT
308       and runtime flag SHELFICEuseGammaFrict
309    o verification lab_sea & global_ocean.cs32x15:
310     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
311       does not miss some dependencies (but is slower) and also works with many files
312       (default makedepend limitation for AD built).
313     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
314    o pkg/diagnostics:
315     - add run-time parameter "useMissingValue" (def=False) to fill land-point
316        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
317       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
318     - Extend the use of "missing_value" setting from data.diagnostics for the case
319       of counter-diagnostics (where fraction-weight is zero). This applies both to
320       MNC and MDS output files.
321    o pkg/seaice/seaice_growth.F:
322      - add 'a priori' cap of latent heat flux based on actual mass considerations
323        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
324        non-legacy seaice_solve4temp.
325      - add diagnostic of the residual sublimation freshwater flux (the freshwater
326        flux taken from the ocean if the total actual latent heat fluxes exceed
327        the maximum)
328      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
329       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
330      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
331       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
332      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
333      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
334    o verification 1D_ocean_ice_column:
335       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
336       update results
337    o pkg/diagnostics:
338     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
339       which are not filled-up but computed from other diags ; In this case, the mate
340       diag points to the primary (filled-up) diag to used for post processing.
341     - Update Velocity-potential computation using post-processed diag framework.
342     ==> Change the ordering of fields and time-periods in MDS output file
343       when using periodic averaging: now writes one time record with the full set
344       of fields for this time period, then the next time reccord (it used to be
345       one field with the full set of time records then the next field).
346         Note: this is now similar to NetCDF (MNC) output file. <==
347    
348    checkpoint62z (2011/06/21)
349    o adjoint monitor:
350     - Add adjoint monitor output for packages exf, seaice
351       and update relevant testreport output
352    o pkg/seaice:
353     - re-order diags inits so that they appear in order in available_diagnostics.log
354     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
355       area/heff/hsnow preceeding thermodynamic growth/melt.
356     - modified diag: SIdA; output actual effect, as the description states.
357     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
358     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
359       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
360        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
361     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
362     - added diagnostics for seaice generic tracers (SItr*).
363     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
364     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
365     I. Fenty: 18-Jun-2011:
366     Minor changes to seaice package:
367     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
368        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
369       - Differentiated "regularization variables" from "floor variables"
370        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
371        * hiceMin became SEAICE_hice_reg (old hiceMin)
372          (with _reg meaning regularization variable)
373       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
374        so as to ensure energy conservation when going between phases
375      - A22 was not used anywhere
376     2) Changed regularization procedure for heffActual and hsnowActual to ensure
377        well-boundedness and smooth adjoint in seaice_growth.F
378     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
379        because the old regularization always set heffActual >= 0.05 cm
380     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
381        on AREA when HEFF > 0.
382      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
383        requiring that DISABLE_AREA_FLOOR *not* be defined
384     Affected verifications:
385      - 1D_ocean_ice_column (output.txt output_adm.txt)
386      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
387    o pkg/diagnostics:
388      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
389      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
390        (was _RL, now integer) with option = 0 to retrieve all levels.
391      - add pieces of code to compute velocity potential at each level (new diagnostics
392        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
393        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
394      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
395        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
396        and in diagnostics_fract_fill.F (do not need a valid pointer for the
397        diagnostics counter-mate); check that definition of counter-diagnostic
398        includes a valid counter-mate (in diagnostics_set_levels.F).
399    o model/src (rStar):
400      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
401        affect solution only if z* with full pressure in EOS;
402        update output of test-exp global_ocean.90x40x15.
403    o pkg/seaice:
404      - introduce siEps=1e-5 parameter
405      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
406      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
407      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
408        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
409        as well as ice cover age and ridging index (attached to AREA).
410        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
411        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
412        Up to SItrMaxNum=3 tracers can be used simultaneously.
413    o pkg/salt_plume:
414      -introduce SPsalFRAC run time parameter that sets the fraction of the
415       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
416       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
417    o model debug options:
418      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
419        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
420      - Refine debug-msg printing selection (3 new levels):
421        debugMode  : controls printing of debug messages (sequence of S/R calls).
422        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
423         debLevZero =  0 ; /* level of disabled aux. msg printing */
424         debLevA =  1 ; /* level of minimum  aux. msg printing */
425         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
426         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
427         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
428         debLevE =  5 ; /* level of extensive debug printing */
429        New debugLevel default: with default debugMode value (=F),
430          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
431          and if debugMode=T, default debugLevel = 4 (debLevD).
432        Relation with previous settings:
433         debLevB (=2) corresponds to former debLevA (=1)
434         debLevD (=4) corresponds to former debLevB (=2)
435        Note:
436         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
437         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
438            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
439      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
440        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
441    o pkg/obcs:
442      - change OBCSfixTopo default from True to False (should not change the results);
443        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
444    o pkg/thsice:
445      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
446        2nd layer seaice sublimation (unlikely to happen)
447      - use Interior mask for OBCS in thsice_advection.F (similar to what is
448        done in gad_advection & seaice_advection).
449    o adjoint:
450      bug fix spotted by Gael Forget:
451      seaice_advection and thsice_advection still had
452      legacy CPP options to avoid CS corner updates for adjoint
453    o pkg/seaice:
454      => Change some of the defaults (2011/05/29):
455         - change SEAICEuseFluxForm default (from False to True)
456         - change DIFF1 default (from 0.004 m/s to 0. m/s)
457         And print warnings if DIFF1 is not set in data.seaice and centered
458          avection scheme is used without any diffusion.
459      also:
460      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
461      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
462      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
463        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
464        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
465      update results of test exp.:
466         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
467             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
468             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
469         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
470         seaice_obcs: output (SEAICEuseFluxForm=T)
471      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
472          for standard fwd & AD lab_sea tests (to keep the same output).
473    o pkg/seaice/seaice_growth.F:
474      - use Ian Fenty's capping formulas for actual ice
475      thickness thoughout EVOLUTION branch.
476      - put treatment pathological case #2) in CPP brackets
477      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
478      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
479    o pkg/seaice:
480      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
481      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
482      also pass fac as a param, which can be 1. (to update the tendency
483      field) or the time step (to update the field itself).
484      - seaice_advdiff.F: for multidim, call seaice_diffusion with
485      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
486      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
487      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
488      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
489    o pkg/seaice:
490      diffusion with centered advection scheme (diffus.F & advect.F):
491      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
492        to just compute the laplacian of input-field.
493      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
494      - fix flux-form version in diffus.F to conserve tracer.
495      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
496       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
497    
498    checkpoint62y (2011/05/26)
499    o pkg/seaice:
500     - seaice_growth.F : in EVOLUTION branch, always include
501       a_QSWbyATM_cover in qnet (as it should be).
502     - verification/global_ocean.cs32x15 : update results accordingly
503       (output.seaice.txt output_adm.seaice.txt).
504    o pkg/seaice + obcs:
505     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
506       equivalent of assuming no tracer gradient outside the OB region.
507       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
508     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
509       after changes above);
510     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
511       only at OB location (instead of over a band of OLx width).
512    o pkg/seaice:
513     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
514       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
515    o pkg/obcs:
516      - split header file "OBCS.h" into 4 separated files:
517        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
518       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
519         (contain no conditional statement which depends on OBCS options).
520      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
521        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
522    o ctrl, cost, grdchk & autodiff pkgs:
523      - make options file more standard (like other {PKG}_OPTIONS.h file but
524        with AD_CONFIG.h); clean-up some of the included header files.
525    o pkg/obcs:
526      - do not mask tracer when applying OB (tracer == 0 could generate problems)
527      - apply tracer OB values to tracer field only at OB location (instead of
528        over a band of OLx width)
529      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
530      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
531        obcs_apply_tloc.F & obcs_apply_sloc.F
532    o obcs in model/src:
533      - call OBCS_APPLY_W only if NonHydrostatic.
534      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
535      - reset dEtaHdt and wVel to zero outside OB interior region ;
536      - leave tracer unchanged outside OB interior region: This has no effect
537        on the solution but just to prevent unrealistic tracer value outside OB.
538      - zero out velocity outside OB interior region: This has no effect on
539        the solution but just to prevent unrealistic velocity outside OB.
540    o obcs and non-lin free-surf:
541       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
542       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
543       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
544       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
545       update results of test-exp. exp4(nlfs).
546    o exp4 (nlfs) test-exp:
547       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
548       with NonLin-FreeSurf); update output.nlfs.txt
549    o obcs and 2d/3d solver norm:
550       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
551       and outside OB interior region (will allow to place OB further inside the
552       domain). Depending on the domain, can affects cg2d-Norm (previous
553       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
554       and cg3d-Norm (previous Norm was computed before canceling OB terms),
555       e.g. in tutorial_plume_on_slope.
556      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
557    o pkg rbcs:
558      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
559      - add capability to apply relaxation to horizontal velocity uVel & vVel.
560    o pkg/grdchk: add gradient check for control variable xx_shifwflx
561    o pkg/shelfice/shelfice_init_fixed.F
562      fix CPP-flag combinations
563    o pkg/seaice: Merge iceage code of Pierre Rampal
564      * update/change/correct ice age calculations
565      * add age updates for pathological cases
566      Probably needs more testing...
567    
568    checkpoint62x (2011/05/13)
569    o pkg/mom_vecinv:
570       high-order vorticity scheme: use interior masks (maskInW & S)
571       to zero-out (outside OB) gradient of vorticity.
572    o verification exp.:
573       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
574       hs94.128x64x5 and seaice_obcs ; update results.
575    o pkg/obcs:
576      fix bug in OBeta for YZ sections in obcs_exf_load.F
577    o pkg/ctrl, pkg/shelfice, and optim:
578      - add new control variable xx_shifwflx (fresh water flux underneath ice
579        shelves). This is almost as tedious as obcs-ctrl, because the
580        variables needs its own mask.
581      - add a cost function term that penalizes the deviation of xx_shifwflx
582        from the first guess (zero) in analogy to other control variables
583    o pkg/shelfice:
584      - start basic adjoint
585    o pkg/ctrl:
586    - remove extra 2D field "for good measure" when initializing in    - remove extra 2D field "for good measure" when initializing in
587      ctrl_set_globfld_[xy/xz/yz].F      ctrl_set_globfld_[xy/xz/yz].F
588    - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec    - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec

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