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revision 1.1391 by mlosch, Wed Mar 9 16:18:06 2011 UTC revision 1.1527 by jmc, Sun Nov 6 20:09:10 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/ctrl/ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.  checkpoint63e (2011/11/06)
8    o pkg/seaice adjoint of LSR:
9      - substantially rework STORE dirs.
10      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
11        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
12        and only perform SOLV_MAX_FIXED adjoint iters.
13        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
14        always goes to same record, meaning that the last forward field will be
15        the one used in the adjoint - an approximation.
16      - now produces non-zero LSR-related gradients, and acceptable gradients for
17        An's zonal (x-z) test case (to be checked in)
18      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
19        (but these are screwed up by the thermodynamics in the first place);
20        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
21        output_adm.txt also reflects changes to seaice_lsr
22      - global_ocean.cs32x15:
23        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
24          (output_adm.seaice.txt was updated)
25        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
26          (output_adm.seaice_dynmix.txt)
27    o test-exp. exp4+stevens:
28      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
29    o pkg/seaice (lsr solver):
30      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
31        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
32      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
33      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
34        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
35      - compute (with new S/R) and print initial (+ free-driff sol. if available)
36        and final residual of linearised system.
37    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
38      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
39    o pkg/obcs: Stevens BCs (still only for east and west)
40      - fix Stevens BCs by using intermediate velocities of previous
41        time step as "baroclinic" contribution rather velocity of one grid cell
42        inside the boundaries; more consistent but makes the entire treatment
43        more complicated, requires new pickup files and two new S/Rs:
44        obcs_copy_uv_n and obcs_save_uv_n
45        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
46        (undefined by default)
47      - silently move computation of some grid factors into separate loops to
48        save some recomputations
49      - add a hack for non-linear free surface
50      - add a verification experiment to exp4 that tests this code
51    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
52    
53    checkpoint63d (2011/10/25)
54    o pkg/obcs + seaice-dynamics:
55      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
56        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
57        values (consistent with an implicit method).
58      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
59        return to older implementation (same results as before); note that none of
60        the "experimental" OBCS_SEAICE options are implemented in the new version.
61      - switch test exp. seaice_obcs to use new version (update output).
62    o pkg/seaice:
63      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
64      - add parenthesis in Water-Ice drag calculations (evp & lsr);
65      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
66        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
67      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
68        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
69    o pkg/layers:
70      - Include potential density as new coordinate (Thanks to David Munday)
71    o pkg/dic:
72      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
73        carbonate computation/output to CALC_PCO2_APPROX
74    o pkg/generic_advdiff
75      - make TAF generate code that vectorizes:
76        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
77    o model/src:
78      - improve vectorization also for adjoint code of
79        solve_tridiagonal and solve_pentadiagonal. As this requires up to
80        5 new 3D-fields, this code is only turned on for the combination of
81        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
82        for singular matrix check (only for TARGET_NEC_SX).
83      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
84        ALLOW_AUTODIFF. This flag now needs to be set outside of
85        solve_tri/pentadiagonal.F
86    o pkg/exf:
87      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
88        optional namelist EXF_NML_OBCS).
89      - add many debug-print (to trace down where pkg/cal error msg comes from)
90    o pkg/mom_vecinv/mom_vi_hdissip.F
91      - rearrange loops so that vectorization is improved and in particular
92        the adjoint routine vectorizes. The code is a little longer now, but I
93        think easier to read.
94        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
95    o pkg/seaice:
96      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
97    o pkg/exch2:
98      - alternative code (without tile x tile matrix) for cumulated (global) sum;
99        used as default; keep using matrix version in adjustment.cs-32x32x1.
100    o tools/build_options:
101      - after merging some MPI and/or multi-threads specific optfiles so that
102        the modified default optfile support both built (using genmake2 -mpi
103        for the MPI built, using genmake2 -omp for OpenMP built),
104        move now obsolete optfiles to tools/build_options/unsupported/
105       (add copy of email sent to support list in doc/optfiles_changes.txt)
106    
107    checkpoint63c (2011/09/28)
108    o pkg/ebm:
109      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
110        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
111    o pkg/seaice (SItracer pickup)
112    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
113      To be done:
114      - thorough testing of missing fields in S/R seaice_read_pickup
115      - thorough matching between generic tracers and specific fields used
116        (e.g. volume-weighted age, area-weighted age, salinity, ...)
117    o pkg/grdchk:
118      - all procs calculate and print finite-difference gradient (for testreport)
119      - change description output used by testreport;
120      - AD testing: also compare and report Finite-difference gradient;
121        => update all output_adm*.txt
122    o test exp. global_ocean_ebm:
123      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
124        and turn on exactConserve; update (fwd) output.
125    o pkg/seaice (LSR):
126      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
127      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
128        * identical results with non-CS topology (but save up to half of EXCH calls)
129        * no much changes in cs-32 verification tests since no ice at face edges
130         (differences due to convergence criteria, since nb of iterations changed)
131        * expect some differences on lat-lon-cap grid.
132        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
133    o pkg/exch2:
134      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
135        many tiles); until alternative coding is added, just add a stop.
136    o pkg/kpp:
137      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
138        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
139    o optfiles:
140      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
141        into corresponding standard one, which now support different build:
142        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
143      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
144    o pkg/obcs (seaice):
145      - add missing EXCH for uIce,vIce after applying OBCS;
146      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
147        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
148        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
149      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
150      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
151        and eedata.mth for MPI and mutlti-threaded testing.
152    o pkg/flt:
153      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
154      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
155      - fix pickup and trajectories + profiles output with multi-threads;
156      - add parameter to select group of fields to write along trajectory and
157        profile (default unchanged);
158      - only call PORT_RAND* function when flt_noise <> 0;
159      - add multi-threaded test for verification exp. flt_example.
160    o eesupp/src:
161      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
162      - USE_OMP_THREADING: check that number of threads (from eedata) matches
163        actual number (from env.var. setting).
164    o pkg/ebm:
165      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
166      - add multi-threaded test for verification exp. global_ocean_ebm
167    
168    checkpoint63b (2011/08/29)
169    o pkg/ebm:
170      - fix sign of runoff;
171      - update directly forcing fields (Qnet,EmPmR) to use standard
172        external_forcing_surf.F (remove ebm_forcing_surf.F);
173      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
174      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
175        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
176      - update global_ocean_ebm parameters file data and update output (fwd+ad).
177    o verification/matrix_example:
178      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
179        MPI and mutlti-threaded testing.
180    o pkg/matrix:
181      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
182      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
183      - fix for multi-threaded (remove DATA statement);
184      - use standard DIFFERENT_MULTIPLE function;
185      - add MATRIX_OPTIONS.h
186    o verification/matrix_example:
187       To allow to split the domain in several tiles, change the domain size
188        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
189        Western side) of land points.
190    o (*_)write_pickup:
191      - fix few bugs in mypackage_read/write_pickup.F
192      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
193        array of length 1 (was caught by compiler syntax-check).
194    o pkg/diagnostics (velocity potential solver):
195      - fix initialisation of main diagonal matrix (for overlap values)
196    o tools/build_options:
197      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
198        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
199      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
200        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
201        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
202        and use "-devel" testreport option for standard testing on baudelaire.
203    o pkg/grdchk:
204      - Assume that all gradient-check position are within the same tile
205        corresponding to global indices (iGloTile,jGloTile) and that
206        positions (i,j indices or nbeg) are local to this tile;
207      - set tile local-indices and proc. number according to tile global-indices;
208      - remove grdchkwhichproc from namelist (retired param);
209      - send adjoint gradient to all procs so that all procs print it to STDOUT;
210      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
211    o adding package bbl (Bottom Boundary Layer)
212      description in MITgcm/pkg/bbl/bbl_description.tex
213      example/test experiment in MITgcm_contrib/bbl
214    o adjoint verifications
215      - changed 5 experiments to multi-tiles
216        * global_ocean.90x40x15
217        * obcs_ctrl
218        * offline_exf_seaice
219        * tutorial_dic_adjoffline
220        * tutorial_tracer_adjsens
221        changed reference output for those that crossed tile boundaries
222        (changed choices of gradient check positions)
223      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
224      - temporary bug fix in grdchk_loc.F for obcs
225    o genmake2 & testreport
226      - add target "obj" (just for OBJFILES files) to Makefile;
227      - add option to specify FEXTRAFLAGS on command line.
228    o pkg/mypackage:
229      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
230    
231    checkpoint63a (2011/08/02)
232    o pkg/diagnostics (velocity potential):
233      - fix velocity-potential calculation when using OBCS: balance net inflow
234        at each level (new S/R OBCS_DIAG_BALANCE).
235      - fix some of the problems with OBCS in stream-function calculation.
236    o pkg/exf/exf_readparms.F
237      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
238        EXF_NML_OBCS) more consistent, so that you need not have these lists
239        in data.exf when they are not used.
240    o optim/optim_readdata.F:
241      - add some output about obcs variables that might help debugging
242      - add a check about nvarlength
243    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
244    o pkg/diagnostics (velocity potential):
245      - fix mask for OBCS (still problems in stream-function with OBCS);
246      - add specific parameter (default = main code CG2D params) for solver;
247      - in case of poor convergence, use solution corresponding to lowest residual.
248    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
249      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
250      and should be avoided where possible.
251    o model/src (rStar):
252      - include r* effect on reference-state (PhiRef) in totPhiHyd
253        (so that it's really the potential anomaly at the cell center);
254        affect solution only if z* with full pressure in EOS.
255      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
256        update output (because of z* in totPhiHyd and viscA4 changes);
257      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
258        @ constant r) until interpolation at constant r is implemented.
259    o pkg/diagnostics
260      - fix RCENTER diagnostics in case cell center is not at interface middle
261    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
262      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
263      that THETA and SALT are "conservative temperature" and "absolute
264      salinity"
265    o pkg/ctrl
266      - fix computation of endrec in s/r ctrl_init_rec
267      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
268    o pkg/seaice/seaice_growth.F
269      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
270        remove then obsolete STORE directives
271      - fix STORE directives for tice and tices, so that only the
272        appropriate part of the fields are stored (and not the entire
273        field); update global_ocean.cs32x15.seaice AD output.
274      - cosmetic changes: adjust CPP flags and indentation for better
275        legibilty
276    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
277      Chris Wilson)
278    o pkg/gmredi:
279       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
280       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
281    
282    checkpoint63  (2011/07/11)
283    o pkg/exch2:
284     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
285     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
286       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
287       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
288    o pkg/diagnostics:
289     - deal with pairs of post-processed diags which are computed together; in
290       particular, re-order list of diags within 1 file to save 2nd computation.
291     - add S/R to compute velocity stream-function (called after velocity-potential
292       calculation) from divergence free transport -> new diagnostics "PsiVEL".
293     - add parameter to select grid-point location where PsiVEL == 0.
294    o eesupp/src:
295       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
296       (specific S/R needed with exch2 topology - for now, just print an error msg)
297    o pkg/shelfice
298     - Implement friction velocity-dependent transfer coefficients following
299       Holland and Jenkins, JPO, 1999
300       Original code by M. Losch with small modifs.
301       Enable with CPP option SHI_ALLOW_GAMMAFRICT
302       and runtime flag SHELFICEuseGammaFrict
303    o verification lab_sea & global_ocean.cs32x15:
304     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
305       does not miss some dependencies (but is slower) and also works with many files
306       (default makedepend limitation for AD built).
307     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
308    o pkg/diagnostics:
309     - add run-time parameter "useMissingValue" (def=False) to fill land-point
310        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
311       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
312     - Extend the use of "missing_value" setting from data.diagnostics for the case
313       of counter-diagnostics (where fraction-weight is zero). This applies both to
314       MNC and MDS output files.
315    o pkg/seaice/seaice_growth.F:
316      - add 'a priori' cap of latent heat flux based on actual mass considerations
317        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
318        non-legacy seaice_solve4temp.
319      - add diagnostic of the residual sublimation freshwater flux (the freshwater
320        flux taken from the ocean if the total actual latent heat fluxes exceed
321        the maximum)
322      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
323       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
324      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
325       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
326      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
327      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
328    o verification 1D_ocean_ice_column:
329       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
330       update results
331    o pkg/diagnostics:
332     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
333       which are not filled-up but computed from other diags ; In this case, the mate
334       diag points to the primary (filled-up) diag to used for post processing.
335     - Update Velocity-potential computation using post-processed diag framework.
336     ==> Change the ordering of fields and time-periods in MDS output file
337       when using periodic averaging: now writes one time record with the full set
338       of fields for this time period, then the next time reccord (it used to be
339       one field with the full set of time records then the next field).
340         Note: this is now similar to NetCDF (MNC) output file. <==
341    
342    checkpoint62z (2011/06/21)
343    o adjoint monitor:
344     - Add adjoint monitor output for packages exf, seaice
345       and update relevant testreport output
346    o pkg/seaice:
347     - re-order diags inits so that they appear in order in available_diagnostics.log
348     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
349       area/heff/hsnow preceeding thermodynamic growth/melt.
350     - modified diag: SIdA; output actual effect, as the description states.
351     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
352     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
353       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
354        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
355     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
356     - added diagnostics for seaice generic tracers (SItr*).
357     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
358     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
359     I. Fenty: 18-Jun-2011:
360     Minor changes to seaice package:
361     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
362        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
363       - Differentiated "regularization variables" from "floor variables"
364        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
365        * hiceMin became SEAICE_hice_reg (old hiceMin)
366          (with _reg meaning regularization variable)
367       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
368        so as to ensure energy conservation when going between phases
369      - A22 was not used anywhere
370     2) Changed regularization procedure for heffActual and hsnowActual to ensure
371        well-boundedness and smooth adjoint in seaice_growth.F
372     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
373        because the old regularization always set heffActual >= 0.05 cm
374     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
375        on AREA when HEFF > 0.
376      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
377        requiring that DISABLE_AREA_FLOOR *not* be defined
378     Affected verifications:
379      - 1D_ocean_ice_column (output.txt output_adm.txt)
380      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
381    o pkg/diagnostics:
382      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
383      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
384        (was _RL, now integer) with option = 0 to retrieve all levels.
385      - add pieces of code to compute velocity potential at each level (new diagnostics
386        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
387        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
388      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
389        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
390        and in diagnostics_fract_fill.F (do not need a valid pointer for the
391        diagnostics counter-mate); check that definition of counter-diagnostic
392        includes a valid counter-mate (in diagnostics_set_levels.F).
393    o model/src (rStar):
394      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
395        affect solution only if z* with full pressure in EOS;
396        update output of test-exp global_ocean.90x40x15.
397    o pkg/seaice:
398      - introduce siEps=1e-5 parameter
399      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
400      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
401      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
402        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
403        as well as ice cover age and ridging index (attached to AREA).
404        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
405        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
406        Up to SItrMaxNum=3 tracers can be used simultaneously.
407    o pkg/salt_plume:
408      -introduce SPsalFRAC run time parameter that sets the fraction of the
409       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
410       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
411    o model debug options:
412      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
413        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
414      - Refine debug-msg printing selection (3 new levels):
415        debugMode  : controls printing of debug messages (sequence of S/R calls).
416        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
417         debLevZero =  0 ; /* level of disabled aux. msg printing */
418         debLevA =  1 ; /* level of minimum  aux. msg printing */
419         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
420         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
421         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
422         debLevE =  5 ; /* level of extensive debug printing */
423        New debugLevel default: with default debugMode value (=F),
424          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
425          and if debugMode=T, default debugLevel = 4 (debLevD).
426        Relation with previous settings:
427         debLevB (=2) corresponds to former debLevA (=1)
428         debLevD (=4) corresponds to former debLevB (=2)
429        Note:
430         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
431         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
432            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
433      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
434        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
435    o pkg/obcs:
436      - change OBCSfixTopo default from True to False (should not change the results);
437        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
438    o pkg/thsice:
439      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
440        2nd layer seaice sublimation (unlikely to happen)
441      - use Interior mask for OBCS in thsice_advection.F (similar to what is
442        done in gad_advection & seaice_advection).
443    o adjoint:
444      bug fix spotted by Gael Forget:
445      seaice_advection and thsice_advection still had
446      legacy CPP options to avoid CS corner updates for adjoint
447    o pkg/seaice:
448      => Change some of the defaults (2011/05/29):
449         - change SEAICEuseFluxForm default (from False to True)
450         - change DIFF1 default (from 0.004 m/s to 0. m/s)
451         And print warnings if DIFF1 is not set in data.seaice and centered
452          avection scheme is used without any diffusion.
453      also:
454      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
455      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
456      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
457        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
458        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
459      update results of test exp.:
460         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
461             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
462             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
463         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
464         seaice_obcs: output (SEAICEuseFluxForm=T)
465      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
466          for standard fwd & AD lab_sea tests (to keep the same output).
467    o pkg/seaice/seaice_growth.F:
468      - use Ian Fenty's capping formulas for actual ice
469      thickness thoughout EVOLUTION branch.
470      - put treatment pathological case #2) in CPP brackets
471      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
472      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
473    o pkg/seaice:
474      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
475      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
476      also pass fac as a param, which can be 1. (to update the tendency
477      field) or the time step (to update the field itself).
478      - seaice_advdiff.F: for multidim, call seaice_diffusion with
479      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
480      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
481      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
482      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
483    o pkg/seaice:
484      diffusion with centered advection scheme (diffus.F & advect.F):
485      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
486        to just compute the laplacian of input-field.
487      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
488      - fix flux-form version in diffus.F to conserve tracer.
489      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
490       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
491    
492    checkpoint62y (2011/05/26)
493    o pkg/seaice:
494     - seaice_growth.F : in EVOLUTION branch, always include
495       a_QSWbyATM_cover in qnet (as it should be).
496     - verification/global_ocean.cs32x15 : update results accordingly
497       (output.seaice.txt output_adm.seaice.txt).
498    o pkg/seaice + obcs:
499     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
500       equivalent of assuming no tracer gradient outside the OB region.
501       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
502     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
503       after changes above);
504     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
505       only at OB location (instead of over a band of OLx width).
506    o pkg/seaice:
507     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
508       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
509    o pkg/obcs:
510      - split header file "OBCS.h" into 4 separated files:
511        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
512       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
513         (contain no conditional statement which depends on OBCS options).
514      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
515        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
516    o ctrl, cost, grdchk & autodiff pkgs:
517      - make options file more standard (like other {PKG}_OPTIONS.h file but
518        with AD_CONFIG.h); clean-up some of the included header files.
519    o pkg/obcs:
520      - do not mask tracer when applying OB (tracer == 0 could generate problems)
521      - apply tracer OB values to tracer field only at OB location (instead of
522        over a band of OLx width)
523      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
524      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
525        obcs_apply_tloc.F & obcs_apply_sloc.F
526    o obcs in model/src:
527      - call OBCS_APPLY_W only if NonHydrostatic.
528      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
529      - reset dEtaHdt and wVel to zero outside OB interior region ;
530      - leave tracer unchanged outside OB interior region: This has no effect
531        on the solution but just to prevent unrealistic tracer value outside OB.
532      - zero out velocity outside OB interior region: This has no effect on
533        the solution but just to prevent unrealistic velocity outside OB.
534    o obcs and non-lin free-surf:
535       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
536       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
537       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
538       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
539       update results of test-exp. exp4(nlfs).
540    o exp4 (nlfs) test-exp:
541       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
542       with NonLin-FreeSurf); update output.nlfs.txt
543    o obcs and 2d/3d solver norm:
544       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
545       and outside OB interior region (will allow to place OB further inside the
546       domain). Depending on the domain, can affects cg2d-Norm (previous
547       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
548       and cg3d-Norm (previous Norm was computed before canceling OB terms),
549       e.g. in tutorial_plume_on_slope.
550      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
551    o pkg rbcs:
552      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
553      - add capability to apply relaxation to horizontal velocity uVel & vVel.
554    o pkg/grdchk: add gradient check for control variable xx_shifwflx
555    o pkg/shelfice/shelfice_init_fixed.F
556      fix CPP-flag combinations
557    o pkg/seaice: Merge iceage code of Pierre Rampal
558      * update/change/correct ice age calculations
559      * add age updates for pathological cases
560      Probably needs more testing...
561    
562    checkpoint62x (2011/05/13)
563    o pkg/mom_vecinv:
564       high-order vorticity scheme: use interior masks (maskInW & S)
565       to zero-out (outside OB) gradient of vorticity.
566    o verification exp.:
567       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
568       hs94.128x64x5 and seaice_obcs ; update results.
569    o pkg/obcs:
570      fix bug in OBeta for YZ sections in obcs_exf_load.F
571    o pkg/ctrl, pkg/shelfice, and optim:
572      - add new control variable xx_shifwflx (fresh water flux underneath ice
573        shelves). This is almost as tedious as obcs-ctrl, because the
574        variables needs its own mask.
575      - add a cost function term that penalizes the deviation of xx_shifwflx
576        from the first guess (zero) in analogy to other control variables
577    o pkg/shelfice:
578      - start basic adjoint
579    o pkg/ctrl:
580      - remove extra 2D field "for good measure" when initializing in
581        ctrl_set_globfld_[xy/xz/yz].F
582      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
583      - improve error messages in ctrl_set_unpack_*
584    o OBC implementation in momentum:
585       use interior masks (maskInC,W & S) in momentum S/R:
586       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
587       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
588       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
589       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
590       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
591        (and also with Leith/Smagorinsky harmonic-viscosity).
592       Update output of experiment dome and exp4 (+nlfs).
593    o exp4 test-exp:
594      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
595        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
596        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
597        time-varying OB at Western-side for wVel (NonHyd); update output.
598      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
599        and biharmonic-viscosity ; also use prescribed time varying OB.
600    o pkg/obcs:
601      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
602    o model/src:
603      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
604      - initialise startTime & nIter0 with unlikely values: allows to set one
605        from the other without ambiguity.
606    o seaice_obcs test-exp.:
607      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
608    o pkg/obcs:
609      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
610        no longer needed with maskInC,W,S in pkg/generic_advdiff.
611    o pkg/seaice:
612      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
613        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
614      - fixed bug in the initialization of sea ice salinity variable HSALT
615        in seaice_init_varia.F  (removed dependence on ICE2WATR)
616    o fizhi-cs test exp.:
617       switch reference output convention for these 2 non-standard test-exp,
618        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
619          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
620       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
621    o model/inc:
622      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
623        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
624    o pkg/seaice:
625      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
626    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
627      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
628        and initial HSALT
629    
630    checkpoint62w (2011/04/26)
631    o pkg/mom_fluxform:
632      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
633      - use parameter "sideDragFactor" in no-slip BC side-drag part.
634      - update output of exp. global_ocean.90x40x15
635    o pkg/mom_vecinv:
636      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
637    o update seaice exp.:
638      use more consistent parameter values (remove "backward compatability only":
639       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
640      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
641       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
642    o update test-exp global_ocean.90x40x15:
643      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
644      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
645      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
646      o turn on zStar & viscA4 in standard set-up (dir input/)
647        and update output files: output.txt & output.dwnslp.txt
648    o new AD-test experiment: obcs_ctrl
649      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
650    o pkg/dic:
651      fix two bugs in handling water vapour pressure in carbonate chemistry
652      and air-sea fluxes. Found by Val Bennington and Galen McKinley
653      (add DIC Option = WATERVAP_BUG to recover old results)
654      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
655    o adding allowInteriorFreezing option to check for water below freezing point
656      at depth and bring the negative heat anomaly to the surface level
657    o pkgs _fields_load:
658      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
659      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
660        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
661        rbcs to get interpolation weights and time reccord number.
662      - fix multi-threading in aim_fields_load.F
663      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
664    o external_fields_load:
665      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
666       interpolation weights) to use in a periodic time-series ; do not divide by
667       time-step to convert to integer:
668       - this fixes case where externForcingPeriod is not multiple of time-step
669          (Thanks to Christopher L. Wolfe)
670       - this fixes case where externForcingPeriod is an odd multiple of time-step
671         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
672      store index of time-record which is currently loaded:
673       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
674       - needed for the adjoint but not yet used because of extensive recomputations;
675         (to be fixed soon)
676    
677    checkpoint62v (2011/04/02)
678    o verification/1D_ocean_ice_column added to test Ian Fenty's
679      pkg/seaice_growth.F modifications for improving sea ice code differentiability
680    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
681      (new velocity statistics after changing maskInW & maskInS definition)
682    o pkg/generic_advdiff with OBCS:
683      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
684      equivalent to assumption of no tracer gradient outside the OB region.
685      This will affect the results if using obcs+biharmonic diffusion.
686      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
687    o pkg/obcs:
688      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
689      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
690      in Interior region. No impact on solution but affects Velocity monitor stats.
691    o pkg/ptracers (adjoint)
692      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
693      tape file for each tracer
694    o model/inc/src and pkg/autodiff: add parameters that allow to turn
695      of parts of the adjoint code at run time. For now, there are only
696      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
697      parameters are set in data.pkg.
698      This is the lazy coward's version of doing this, but still useful for
699      debugging. In order to do it right, everything needs to be moved to
700      pkg/autodiff.
701    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
702      the end; this fixes the adjoint balancing code for open boundaries.
703    o pkg/ctrl:
704      - change behavior of xx_${varname}period to be analogous to exf-conventions:
705        xx_${varname}period =   0.,  means time-independent control part
706        xx_${varname}period = -12., means one-year-periodic monthly control part
707      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
708        clean up ctrl_init a little, remove unused variables
709      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
710      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
711    
712    checkpoint62u (2011/03/15)
713    o model/src:
714      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
715        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
716      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
717        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
718    o pkg/ctrl/obcs/ecco:
719      - remove obsolete, unused, and partially broken code:
720        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
721        ALLOW_CTRL_OBCS_BALANCE
722      - put a stop statement into ecco/cost_obcsvol.F, but also add
723        cost_obcsvol to ecco_ad_diff.list
724    o pkg/ecco: fix counting cost function contributions for obcs (code
725      by Matt M.) and diffkr for diagnostics
726    o pkg/ecco, pkg/ctrl, pkg/grdchk:
727      add cost penalty terms for initial uvel, vvel, eta controls
728      and I/O for prior error files
729    o pkg/mdsio:
730       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
731       (new argument) to check for tiled file in mdsioLocalDir : this fix the
732       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
733    o pkg/ctrl:
734     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
735       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
736       unused and superfluous variables
737     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
738  o pkg/ecco  o pkg/ecco
739   - enable adjoint of Stevens OB   - enable adjoint of Stevens OB
740  o pkg/ctrl/ecco/grdchk:  o pkg/ctrl/ecco/grdchk:
741    - remove global declaration of tmpfldx/yz and tmpfldx/yz2.    - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
742      Fortunately, we do not have any tests for the numerous cpp-flagged      Fortunately, we do not have any tests for the numerous cpp-flagged
743      option of "obcs as control parameters" so we will never know      option of "obcs as control parameters" so we will never know
744      if this is an improvement (but at least now things compile).      if this is an improvement (but at least now things compile).
745    - remove an obsolete initialization from ecco_cost_init_barfiles.F    - remove an obsolete initialization from ecco_cost_init_barfiles.F
746    - fix some problems within never used ifdefs to make the code compile    - fix some problems within never used ifdefs to make the code compile
747  o pkg/obcs:  o pkg/obcs:
748   - Refine Interior mask definition to work with more complex OB (e.g.   - Refine Interior mask definition to work with more complex OB (e.g.
749     if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to     if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to

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