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revision 1.1498 by jmc, Mon Aug 29 19:46:22 2011 UTC revision 1.1789 by gforget, Sat Dec 22 18:35:27 2012 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o verification/offline_exf_seaice and lab_sea adjoint:
8     - switch to new code (#undef SEAICE_GROWTH_LEGACY).
9     - switch to 4 time steps in offline, consistent with lab_sea.
10     - match paramaters from SEAICE_GROWTH_LEGACY branch in data.seaice.
11     - update results after change of experiment seaice.
12    o model/src:
13      - add run-time parameter to select CG2D solver minimum-residual solution
14        (in case of a poor convergence).
15    o pkg/seaice/seaice_lsr.F
16      - move calculation of matrix coefficients into new
17        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
18        file; the main purpose of this change is to be able to reuse the code
19        in S/R SEAICE_PRECONDITIONER
20      - modify the computation of the residual so that the mass of sea-ice
21        is not used twice; this simplyfies the calculations, but since
22        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
23        not tested in testreport---this does not affect the testreport results.
24    o verification/seaice_obcs:
25      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
26        verification/lab_sea/input.salt_plume; changes results/output.txt*
27    o model/src:
28      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
29    o pkg/seaice:
30      - improve description of parameters in seaice_fgmres.F and start
31        cleaning up the code
32      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
33        second argument
34      - add a metric based on grid cell area to SEAICE_SCALPROD; update
35        results of offline_exf_seaice.dyn_jfnk
36      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
37    o pkg/aim_v23:
38      - fix an other bug in dissipation heating (grid-cell area was missing).
39    o model/src + pkg/seaice:
40      - add global (multi-tile) linear solver for pair of tri-diagonal system
41        along X and Y lines, respectively for U and V component.
42        Note: 1) MPI and cube-exchange not yet coded.
43            2) probably not accurate for poorly conditioned / large size problem.
44      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
45        default: not compiled and not used.
46    o pkg/seaice:
47      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
48        introduce bi/bj loops and use global_sum_tile_rl instead of
49        mpi_allreduce in seaice_fgmres.F
50      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
51      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
52      - add a verification experiment for JFNK in offline_exf_seaice
53    o verification:
54      - change (for now, only fwd test) offline_exf_seaice experiment:
55        use a re-entrant channel with idealized costline (trapezoidal shape)
56        at southern boundary to explore seaice dynamics and thermodynamics
57        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
58        secondary test (input.thsice) use thermodynamics only with SST relaxation.
59      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
60    o pkg/exf:
61      - disable "sstExtrapol" when Nr=1
62    o verification:
63      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
64        to test pkg/cheapaml.
65    o pkg/aim_v23 & pkg/shap_filt:
66      - fix dissipation heating (erroneous gravity multiplication factor).
67    o pkg/seaice:
68      - remove unused field pressPre from jfnk solver
69      - rename two subroutines in seaice_preconditioner.F
70    o eesupp/src:
71       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
72    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
73       - remove wrong parts of the rhs and the lhs (were in there
74         because I did not understand the concept of this preconditioner)
75       - add an exchange between u- and v-sweep. This increases communication
76         by a factor of two but improves the convergence of jfnk. Ideally,
77         one would like the u- and v-sweep to be independent. So far within
78         undocumented ifdefs
79       - reorganize the extra computations for printing the residuals
80    o tools/genmake2:
81      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
82        since it's not necessary (and was preventing to use MNC in some cases).
83    
84    checkpoint64a (2012/11/16)
85    o pkg/autodiff:
86      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
87        autodiff_readparms.F no longer depends on calling order (within
88        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
89        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
90        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
91    o pkg/obcs:
92      - adding tidal velocity forcing capability to obcs
93        for usage example, see verification/seaice_obcs/input.tides
94    o pkg/seaice:
95      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
96        SEAICE_LSRrelaxU/V
97      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
98    o pkg/aim_v23:
99      - implement heating from friction (bottom friction and stratospheric drag).
100    o pkg/shap_filt:
101      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
102        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
103    o model/src:
104      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
105        time-constant addMass field from file (addMassFile);
106      - support for heating due to friction (and Kinetic Energy dissipation):
107        add option, run-time switch and 3-D field array + support code ; each pkg
108        or S/R can add heating contribution (if there is a sink of KE); the sum is
109        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
110    o pkg/seaice:
111      - complete merge of ITD code into seaice_growth.F
112        from MITgcm_contrib/torge/itd/code/
113        no verification so far, but Torge Martin tested
114        "1-D test case and Beaufort set up;
115        deliver okay results after 1 model year."
116      - complete merge of SEAICE_SIZE.h into all relevant routines
117      - move computation of eta at Z-points into calc_viscosities
118        + introduce global field etaZ
119        + add different methods for computing etaZ, for now the old
120          method (simple averages of eta to Z-points) is hardwired
121        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
122          seaice_preconditioner
123      - simplify computations for SEAICE_ZETA_SMOOTHREG
124      - seaice_preconditioner:
125        + replace one remaining press by pressLoc (mistake)
126        + adjust printing of residuals
127      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
128        + add (SEAICE.h) and rename some counters (initiliased in
129          seaice_init_fixed.F)
130        + add _BEGIN/END_MASTER (myThid)  around print statements
131        + print total number of iterations and failures over SEAICE_monFreq
132          interval to STDOUT
133      - move control over output-messages by fgmres to seaice_jfnk to save
134        some operations
135      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
136        in order to make restarts with sol .ne. zero (fgmres with restarts)
137        (seaice_jfnk.F, seaice_fgmres.F)
138      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
139        a serious convergence problem when open boundaries are involved
140    o pkg/ggl90: fix computation of control volumes for the case of
141      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
142      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
143    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
144    o pkg/autodiff
145      - Add inAdMode switch for SEAICEuseDYNAMICS:
146        SEAICEuseDYNAMICSinAdMode
147        (extend logic in ADAUTODIFF_INADMODE_SET)
148    o pkg/seaice
149      - Step 1 of merging ice-thickness distribution (ITD) code from
150        MITgcm_contrib/torge/itd/ (author: Torge Martin)
151        The code implements concept laid out in Thorndike et al. (1975);
152        code is enabled via CPP flag SEAICE_ITD
153        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
154        code is not complete yet!!
155      - SEAICE_SIZE.h now included in almost all seaice routines
156    o verification (using seaice):
157      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
158        global_ocean.cs32x15.seaice ; update results.
159      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
160      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
161        offline_exf_seaice (previously compiling B-grid).
162    o pkg/exf:
163      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
164        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
165        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
166    o pkg/layers (adjust changes from Sept 19):
167      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
168        this allows to remove "layers_maxNum" dimension from all layers arrays.
169    o pkg/layers (adjust changes from Sept 19):
170      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
171      - snap-shot extended to all type of layers (not just the 1rst type);
172      - remove layers variables when corresponding CPP option is undef.
173    o pkg/layers:
174      - rename pkg/layers variable and add new output (layer exist & un-weighted
175        velocity in layer)
176    o pkg/seaice:
177      - simplify (?) ocean-drag coefficent computations by using
178        the same routine in all three solvers (saves some code lines)
179      - remove global fields DRAGA and DRAGS from C-grid code and
180        declare them locally in lsr.F (the only place where they are
181        still used)
182      - update AD output of lab_sea.evp (very sensitive anyway).
183    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
184      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
185      and SEAICEuseJFNK=.true. A few things to note:
186      - involves a FGMRES, that is parallel but very inefficient,
187        because of many scalar products (global sums) in the Gram-Schmidt
188        orthogonalization method. Needs to be replaced. Original code
189        from J.-F. Lemieux
190      - preconditioner for FGMRES is a stripped down version of LSOR
191      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
192        preconditioner. For the preconditioner, the default is set to 10.
193      - Jacobian times vector is computed with finite differences
194      - marginally related to JFNK-solver: add a smooth regularization for
195        zeta with tanh that will improve convergence (Lemieux and Tremblay,
196        2009) for any implicit solver (not implemented for EVP because EVP
197        does not need this regularization in the first place). Define
198        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
199    o eesupp/src:
200      - check in genmake2 that intrinsic S/R flush is available.
201      - add S/R to flush IO unit (if intrinsic S/R flush is available)
202      - flush standard & error msg unit before MPI termination
203      - if debugMode, flush IO unit after printing msg
204    o pkg/ctrl:
205      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
206        to ctrl_set_unpack_xyz.
207    
208    checkpoint64 (2012/10/09)
209    o pkg/shelfice
210      - in mom_fluxform.F, mom_vecinv.F:
211        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
212        Bug fix KappaRU -> KappaRV
213        does not change verification/isomip but may change other setups
214        (presumably constant KappaRU=KappaRV)
215      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
216    o pkg/obcs:
217      - fixed some indexing bugs in obcs_seaice_sponge.F
218      - added obcs relaxation subroutines for HSALT and HSNOW
219      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
220    o pkg/seaice:
221      - add "multicategory" parameterization for snow in analogy to ice,
222        default is off for now.
223    o pkg/obcs:
224      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
225        see verification/seaice_obcs/input.seaiceSponge for example application.
226      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
227        index setting by master-thread. This fix multi-threads Pb in previous modifs.
228    o pkg/layers :
229      - add diagnostics to pkg/layers
230      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
231        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
232    o pkg/generic_advdiff/gad_implicit_r.F :
233      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
234    o pkg/seaice/seaice_growth.F:
235      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
236    o pkg/obcs:
237      - change default setting of OBCS_UVICE_OLD from defined to undef;
238      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
239        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
240      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
241      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
242        with Southern & Western OB at a tile edge (at least in a simple set-up).
243    o pkg/obcs:
244      - change settings of OB index in case OB coincides with tile edge (shared by
245        2 tiles), so that common OB location is registered by both tiles (instead of
246        only 1). However, for Southern and Western OB, index value = 0 is not
247        recognized as valid OB index (=default null value) and needs to be fixed.
248      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
249      - new parameter "OB_indexNone" for null index value (for now, still zero)
250        to replace hard-coded null index value of zero.
251    o pkg/exch2:
252      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
253        always check buffer-size (but outside the loop); move checking for valid
254        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
255        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
256    o pkg/ctrl (pack & unpack):
257      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
258        (locally defined) for different variables (+ remove the variable-specific
259        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
260        (to be extended to other local file names in ctrl.h).
261    o pkg/flt:
262      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
263    o pkg/mdsio:
264      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
265    o tools/genmake2:
266      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
267        (added by Alistair in version 1.51 for building without make depend);
268      - remove Header files list (H_SRC_FILES) from the dependence of targets
269         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
270        place in version 1.23): this save going through staf when unrelated header
271        file has been modified.
272       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
273        "make depend" step, still need to do "make links" before "make adtaf".
274    o eesupp/src (+ few pkg src files) & genmake2:
275      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
276      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
277      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
278         upper/lower case ; account for space between "#" and undef/define)
279    o pkg/flt (with exch2):
280      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
281      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
282    
283    checkpoint63s (2012/09/05)
284    o pkg/ecco:
285      - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.
286      - add more relevant #ifdef ALLOW_SMOOTH ones.
287      - sort out useAtmWind, useSMOOTH, ctrlSmoothCorrel2D.
288    o pkg/ctrl:
289      - CTRL_OPTIONS.h : document CPPs related to smoothing; ALLOW_SMOOTH_CORREL2D/3D,
290        ALLOW_CTRL_SMOOTH, ALLOW_SMOOTH_CTRL2D, ALLOW_SMOOTH_CTRL3D.
291      - ctrl.h : document run time params doInitXX, doMainPack, doMainUnpack, doPackDiag,
292        doSinglePrecTapelev (audodiff param!), ctrlSmoothCorrel2D (new) and
293        ctrlSmoothCorrel3D (new).
294        The added ctrlSmoothCorrel2D/3D replace the old ALLOW_SMOOTH_CORREL2D/3D CPP.
295      - ctrl_readparms.F : initialise ctrlSmoothCorrel2D/3D and read from namelist.
296      - ctrl_init.F ctrl_pack.F ctrl_unpack.F : switch off ustress/vstress
297        controls when useAtmWind, and vice versa.
298      - ctrl_map_ini_ecco.F : UVEL0, VVEL0, edtaux, edtauy cannot be smoothed as tracers.
299      - ctrl_get_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL2D with
300          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel2D, IF useSMOOTH.
301      - ctrl_map_ini_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL3D with
302          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel3D, IF useSMOOTH.
303      - ctrl_set_pack_xy[z].F, ctrl_set_unpack_xy[z].F:
304        replace ALLOW_SMOOTH_CORREL2D/3D brackets with ctrlSmoothCorrel2D/3D.
305    o pkg/smooth:
306      - remove un-necessary includes.
307      - remove ALLOW_SMOOTH*D and ALLOW_SMOOTH_CORREL*D brakets.
308        Those CPP options were never defined, and not necessary.
309    o model/src:
310      - fix CPP brackets in ini_mixing.F (GM_background_K belongs to gmredi).
311      - standard treatment of useSMOOTH.
312    o pkg/autodiff:
313      - add LOGICAL useGGL90inAdMode, useGGL90inFwdMode, useSALT_PLUMEinAdMode,
314        useSALT_PLUMEInFwdMode allowing to switch off ggl90 and salt_plume adjoint.
315    o pkg/exch2:
316      - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)
317        + start to remove ALWAYS_USE_MPI in source code that TAF does not see.
318      - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag
319        and tiles to process mapping.
320      - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)
321        moving /EXCH2_FILLVAL_RX/ & /W2_EXCH2_COMMFLAG/ to W2_EXCH2_TOPOLOGY.h;
322        rename "exch2_tProc" to "W2_tileProc" and move seting of e2FillValue_RX
323        from w2_eeboot.F to w2_readparms.F.
324    o eesupp/src:
325      - set exchNeedsMemsync & exchUsesBarrier according to "usingMPI" (instead of
326        ALWAYS_USE_MPI) + moved from ini_communication_patterns.F to eeset_parms.F;
327        also move setting of exchCollectStatistics from exch_init.F to eeset_parms.F
328      - in eedie.F and all_proc_die.F, always call MPI_FINALIZE when ALLOW_USE_MPI
329        is defined (remove condition on usingMPI) to match cases where MPI_INIT
330        has been called.
331      - fix bug I put in previous modif of exch_sm_3d_rx.template (not much used);
332      - change default (non-MPI) value of myPid (from 1 to 0) to match MPI settings
333        (so that on 1 proc, get same myPid independently of usingMPI)
334      - add a stop if multi-procs but usingMPI=F ; stop also if usingMPI=T and
335        useCubedSphereExchange with EXCH-1 (safer).
336      - add "if usingMPI" where it was missing (+ start to remove ALWAYS_USE_MPI).
337    o pkg/ggl90:
338      - fix bug in filling corner mask array "mskCor" (FILL_CS_CORNER_TR_RL call)
339        used in ALLOW_GGL90_SMOOTH code.
340    o pkg/flt:
341      - fix typo in FLT_WITHOUT_Y_PERIODICITY (the effect was to ignore stopping
342        floats at the Southern end of the domain).
343    o eesupp/inc:
344      - add a list of CPP-options which can be set by Makefile (DEF_IN_MAKEFILE.h);
345        but not used (and not to be used) anywhere, just for documentation.
346    o pkg/autodiff, exf, ptracers & seaice (AD & TL output):
347      - comment out the very nasty "writeBinaryPrec = writeStatePrec" line, since:
348        a) can damage previously written records in any other multi-record files.
349        b) if needed, can easily do it cleanly, by calling S/R WRITE_REC_3D_RL/S.
350    o tools/genmake2:
351      - define variable MAKE within Makefile and use it in place of 'make';
352      - update AD_CONFIG.h (if needed) before building any of the executable
353        (forward, adjoint or tangent-lin); this involves a 2nd invocation of make;
354        and add the usual #ifndef/#define AD_CONFIG_H in AD_CONFIG.h;
355      - always print usual warning comment 'this file is automatically generated'
356        from script convert_cpp_cmd2defines (+ remove this warning from genmake2).
357    o pkg/cheapaml:
358      - updated to correspond to the code used in accepted paper (Nico Wienders).
359    o pkg/exf:
360        added run time switch useAtmWind to replace ALLOW_ATM_WIND cpp switch.
361        ALLOW_ATM_WIND now just sets the useAtmWind default (see exf_readparms.F)
362        and force defines ALLOW_BULKFORMULAE (EXF_OPTIONS.h).
363    o pkg/exf, autodiff, ctrl, ecco and seaice:
364        remove ALLOW_ATM_WIND brackets, or replace them with useAtmWind ones.
365    o pkg/ctrl, ecco:
366        allow to compile both ALLOW_U/VSTRESS_CONTROL and ALLOW_U/VWIND_CONTROL.
367        Depending on useAtmWind, one is inactive, and the other is active (see
368        exf_getffields.F/exf_getsurfacefluxes.F).
369    o tools/genmake2:
370      - improve error msg when failing in 2nd test of check_for_broken_Ff
371      - fix option '-makefile' short-name (-mf according to genmake2 -help)
372      - source local config file "genmake_local" just after processing the genmake2
373        command arguments (previously done before processing arg).
374    o pkg/grdchk:
375      - add a call to TURNOFF_MODEL_IO for Tangent-Linear run (in this case, call
376        to this routine from cost_final has been dropped in g_cost_final)
377      - improve printed information (more explicit msg, no longer using "print *,"
378         fix fcpertminus printed value).
379    o model/src:
380      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
381        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
382        this prevents getting cost-funct reset in adinitialise_varia recomputations.
383    o pkg/dic:
384      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
385        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
386    o pkg/grdchk:
387      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
388      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
389    o pkg/autodiff/ctrl/grdchk :
390      - attempt to sort out what works and what does not,
391        with regard to I/O, and to warn/stop accordingly.
392    o pkg/grdchk:
393      - attempt to fix grdchk in the case of useSingleCpuIO.
394      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
395       statements were moved from grdchk_main.F and into
396       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
397      - a global sum is applied to record numbers icvrec/layer
398       out of grdchk_loc so that they be passed to I/O routines.
399    o pkg/smooth:
400      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
401        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
402    o verification/testreport:
403      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
404      - can also use compressed (gzip) reference output file;
405      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
406        to be easier to collect by testreport.
407      - update existing TLM output (half out-of-date by more than 3 yrs).
408      - report NETCDF & LAPACK settings (from genmake2) in output dir.
409      - report run-time in each individual summary (previously only for AD test);
410        for TLM test, add also TAF version.
411      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
412    
413    checkpoint63r (2012/08/15)
414    o tools/genmake2:
415      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
416    o pkg/ecco/ecco_cost_final.F :
417      - fix fc print statements (to stdout and costfunction0000) so
418        that the printed value is always after the global sum.
419    o pkg/seaice/seaice_dynsolver.F :
420      - fix ice strength assymptote at SEAICE_area_max<1
421        (no change for the standard case of SEAICE_area_max=1)
422    o some cleaning:
423      - pkg source files: ensure that all *.F files from each pkg included the
424        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
425        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
426        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
427        includes;
428      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
429      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
430        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
431        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
432      - update option-file CPP_OPTIONS.h of all AD experiments:
433        * no longer include PACKAGES_CONFIG.h ;
434        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
435        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
436          including ECCO_CPPOPTIONS.h).
437    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
438      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
439        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
440        not necessary accurate).
441      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
442        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
443        deliberately break compilation (a remainder that it needs to be customized)
444      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
445      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
446      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
447    o tools/genamke2:
448      - check for lapack.
449    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
450      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
451        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
452        from both packages.
453      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
454      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
455      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
456        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
457    o pkg/cost : add comments to explain special and/or untested setups.
458    o pkg/exf:
459      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
460        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
461    o verification/*/code_ad:
462      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
463      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
464      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
465        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
466    o pkg/seaice :
467      - added possibility to change ice strength/PRESS0 relationship to
468        HEFF, according to the following run time parameters
469        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
470        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
471        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
472    o pkg/ggl90 :
473      - added run time flag mxlSurfFlag to include the code that ensure
474        mixing between first and second level (previously included as a comment)
475    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
476      - add test of newly added dumpAdByRec=T option where
477        we write all records to one file per variable.
478    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
479      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
480        to check that this code is ok with taf and compiles in adjoint.
481    o pkg/autodiff :
482      - added run time param dumpAdByRec : ad dump format switch.
483        If true then write all records to one file per variable.
484        Else write one file per record (remains the default).
485      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
486    o pkg/seaice:
487     - Added SEAICEuseTILT run time switch : if set to
488       false then omit the tilt term in seaice dynamics.
489     - Fix free drift calculation.
490    o pkg/shelfice:
491      When initializing SHELFICEDragQuadratic, set default to be
492      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
493      but retain option to set it independently
494      (inconsistenty spotted by Veronique Dansereau)
495    o eesupp/inc:
496      - in EEPARAMS.h, add real-type constant for some frequently used simple number
497         (0,1,2,1/2), with name explicitly referring to RS/RL type.
498    o model/src:
499      - move balancing of relaxation terms to new S/R balance_relax.F.
500    o pkg/autodiff:
501      re-write active I/O high-level (control) S/R:
502      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
503      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
504      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
505        MDS_READ/WRITE_FIELD); change loops to multi-threads.
506      - update and merge active_file_control_slice.flow into active_file_control.flow
507      - update the calls in lower level S/R (active_file.F, active_file_g.F and
508        active_file_ad.F) keeping the argument list and function unchanged.
509      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
510        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
511      - new low-level active I/O routines, one for each type (RL/RS), for active var
512        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
513        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
514        right type.
515    o autodiff and RS=real*4:
516      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
517        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
518      - change argument type of 3-D mask argument to _RS to match type in the call
519        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
520    o pkg/thsice:
521      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
522      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
523        fresh-water flux: uniform correction or proportional to local precip.
524    o pkg/ctrl:
525      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
526      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
527                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
528      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
529    
530    checkpoint63q (2012/07/30)
531    o pkg/autodiff:
532      note about monitor and snap-shot of ad-variables:
533      a) need to apply ADEXCH before monitor or output of ad-vars to include
534       overlap contributions (was done for adjDump but missing for monitor).
535      b) since ADEXCH implies adding overlap values to interior array, machine
536       truncation error is expected when adding an ADEXCH call in the middle of
537       the time-stepping (although mathematically identical).
538      modifs:
539      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
540        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
541      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
542        apply ADEXCH before monitor or snap-shot of ad-variables:
543           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
544      - implement new method (copy+adexch) for snap-shot and monitor of main model
545        ad-vars (initially not used by default -> output unchanged).
546      - change default (set to 2) to use new method and update few output_adm.txt
547        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
548        and both tutorial_tracer_adjsens tests).
549      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
550        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
551    o pkg/ctrl:
552      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
553      generic control variables via
554      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
555      Only required customization should be S/R ctrl_map_ini_genarr.F
556      (routine in repository contains example)
557    o pkg/exf:
558      - fix and refine checking of surface-relaxation setting when using EXF
559    o verification (adjoint exp):
560      - reduce length of simulation by half for experiment global_ocean.cs32x15
561        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
562    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
563      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
564        of KE that can occur with aggressive optimization
565      + put quadratic bottom drag calculation in separated loops (only done if
566        using bottomDragQuadratic)
567    o model/src: CG2D_NSA
568      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
569         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
570      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
571         change cg2d residual target to be expressed in Wunits (=> do not normalise
572         RHS ; this fix global_max Pb with TAF); update output.
573    o verification/tutorial_tracer_adjsens:
574       improve parameter consistency (and get rid of warnings):
575       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
576       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
577       - use staggerTimeStep (for stability) in som81; use default rotation period.
578    o pkg/exch2:
579      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
580        reset to 0 = 1 long line in X)
581    o pkg/mdsio:
582      - fix reading of dimensions from meta file for large-size domain
583    o model/src:
584      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
585      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
586        Cubed-Sphere Exch with CS-corners inside the domain;
587        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
588        globalArea and to set hasWetCSCorners.
589      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
590        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
591      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
592        useCDscheme and useCubedSphereExchange).
593    o pkg/seaice/seaice_growth.F :
594      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
595        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
596        when the previous code was not correct.
597      - in all cases diagnoze the boundary condition mismatch to SIaaflux
598      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
599        that term to QNET (essentially to set the melt/freeze water to 0degC).
600        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
601    o verification/global_ocean.cs32x15/input.seaice :
602      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
603      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
604      - update results (output.seaice.txt) accordingly.
605    o verification/lab_sea/input/data.seaice :
606      - remove SEAICEheatConsFix, which is now be tested
607        in global_ocean.cs32x15. The presently coded fix
608        is only consistent with real fresh water + nlfs.
609      - update results (output.txt) accordingly.
610    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
611    o AD_CONFIG.h file:
612      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
613      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
614        add it explicitly in each fortran src file where it is needed.
615        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
616        thus introducing potentially wrong dependency; therefore, better to include
617        it only where it's really needed, and after any other included OPTIONS file
618        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
619        or ALLOW_TANGENTLINEAR_RUN).
620    
621    checkpoint63p (2012/07/06)
622    o pkg/autodiff:
623      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
624      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
625        which are now read from new parameter file "data.autodiff" (inAdExact
626        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
627      - add file "data.autodiff" in all verification/*/input_ad/ directories.
628      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
629        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
630    o verification/tutorial_tracer_adjsens/
631      - add extra sub-verification which uses "SOM" advection scheme
632        (2nd Order-Moment Advection Scheme, Prather Limiter) with
633          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
634        and in data:
635          multiDimAdvection=.TRUE.,
636          tempAdvScheme=81,
637          saltAdvScheme=81,
638    o model/src:
639      - introduce ALLOW_BALANCE_RELAX which allow the removal
640       of the global mean of relaxation terms by setting
641       balanceThetaClimRelax and balanceSaltClimRelax
642      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
643       This case is now treated appropriately in seaice_growth.F
644    o pkg/seaice:
645      - do balanceEmPmR and balanceQnet based on the net fluxes
646        (SItflux) that enter the ocean+ice system rather than QNET
647        and EMPMR. Works best in real fresh water.
648      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
649        out of the diagnotics bloc, and stored in global arrays.
650    
651    checkpoint63o (2012/06/29)
652    o vertical mixing schemes:
653      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
654      - replace computation of density (in Function STATE1, opps_calc.F) by a call
655        to S/R FIND_RHO_SCALAR
656      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
657        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
658        affects output (vermix.ggl90) at truncation level.
659    o testreport:
660      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
661        (nSx,nSy) for the number of threads (from eedata.mth)
662    o model/src:
663      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
664        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
665    o verification/tutorial_tracer_adjsens/
666      - compile with ALLOW_CG2D_NSA
667      - run with nonlinFreeSurf=3
668      - update reference output_adm.txt
669    o tools/genmake2:
670      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
671        refine usePROFILES switching off (only when NetCDF is not available).
672    o verification (atmospheric set-up):
673      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
674    o pkg/profiles : refine profiles and files handling.
675    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
676    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
677      - changes to use model/src/the_main_loop.F rather than the ecco version
678        in ecco type adjoint runs.
679    o model/src:
680      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
681      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
682      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
683    o model/src:
684      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
685        update output of test experiment bottom_ctrl_5x5.
686    o pkg/generic_advdiff:
687      - implement vertical bi-harmonic diffusion (for now, only for T & S and
688        only explicitly).
689    o verification/bottom_ctrl_5x5/
690      update reference output (results changed quite some time ago,
691      not sure when; but new reference results look ok in terms of grdchk)
692    o verification/1D_ocean_ice_column/
693      For verification purposes, the exact adjoint rather than an approx.
694      should be used (e.g., to comare against F.D. or TLM).
695      removed autodiff_inadmode*_ad.F routines in code_ad/
696      Update results/ accordingly.
697    o pkg/cal:
698      - change cal_getdate.F so that output date is function of input time only
699        (less ambiguous, not mixed up with input iteration number).
700      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
701    o pkg/diagnostics:
702      - implement calendarDumps also for stats-diags
703      - implement calendarDumps also for snap-shot output (negative freq)
704      - for now, ignores calendarDumps if non-zero phase-lag.
705    
706    checkpoint63n (2012/06/04)
707    o model/src:
708      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
709        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
710      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
711        similar to calc_r_star.F); update results of experiment internal_wave and
712        tutorial_global_oce_in_p (affected @ truncation level).
713    o pkg/shelfice:
714      - add parameterisation of advective-diffusive flux into the ice shelf
715        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
716      - simply eps3/3a computation
717    o eesupp:
718     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
719       between tiles, just fill-in edges assuming locally periodic subdomain) and
720       add corresponding exchange subroutines (EXCH0);
721     - new CG-solver version (_EX0) for disconnected-tiles special case.
722    o model/src (CG-solvers):
723     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
724       (similar final residual output and max-Iter number as with standard version);
725     - allows to store and use lowest-residual solution (standard & _SR versions);
726     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
727     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
728    o eesup/src:
729     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
730       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
731    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
732    
733    checkpoint63m (2012/04/27)
734    o pkg/shelfice:
735     - account for partical cells in surface level below ice-shelf for hydrostatic
736       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
737    o ad test experiments:
738     - update and rename to "ad_optfile.local" local AD-optfile specific to a
739       particular adjoint verification experiment (in verification/*/code_ad/)
740    o pkg/seaice & pkg/exf:
741     - Part two of ECCO-CLIVAR code merges.
742       Completes merge of seaice area relax. code.
743       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
744       to be set in EXF_OPTIONS.h since this pkg controls its I/O
745       (and avoids second CPP option in SEAICE_OPTIONS.h)
746     - change default value of costIceStart & costIceEnd to a valid date.
747     - add snowPrecip to HSNOW in seaice_growth
748    o pkg/ptracers:
749     - move ptracers summary and setup check into separated S/R ; add a check for
750       valid PTRACERS_Iter0 value (error+stop or just warning).
751    o pkg/cal (+ pkg/ecco):
752     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
753       as input; and for AD, unless both are not differentiable (e.g., k index)).
754    o model/src:
755     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
756       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
757       temporary set to usingZCoords value (to be changed to F when using shelfice).
758     - hydrostatic pressure: implement partial cell near the surface also for
759       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
760       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
761    o pkg/ctrl/ctrl_init.F:
762     - add a formal parameter to s/r ctrl_init_rec to print
763       xx_$(ctrl_valiable)_file for easier debugging
764     - move call of cal_* routines into the if-block where they are really
765       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
766       to specify a startdate
767    o pkg/seaice:
768     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
769       global_ocean.cs32x15/code versions).
770     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
771       verification experiment global_ocean.cs32x15.seaice and update results.
772    o pkg/exf:
773     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
774       (according to useExfYearlyFields).
775    o pkg/cal:
776     - move calendar setting & summary (previously in cal_readparams.F) into new
777       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
778       length of the simulation is set (after SET_PARMS call); This is an attempt
779       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
780     - For safety: keep a record of pkg/cal parameter settings status
781               to allow to STOP if one pkg/cal S/R is called too early.
782     - add a stop in all basic pkg/cal subroutines if called before setting is done.
783     - modify cal_getdate.F: stop when nothing was returned;
784       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
785       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
786    
787    checkpoint63l (2012/04/04)
788    o pkg/bbl:
789      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
790        update global_with_exf output.yearly.txt file.
791    o pkg/cal:
792      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
793      - remove 2 unsused and very short (1 line only) functions ;
794      - remove unsused subroutines from AD-Diff list.
795    o model/src:
796      - start to implement clean wait to stop in initialization S/R (config_check.F,
797         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
798    o folowing PRINT_MESSAGE changes:
799      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
800    o pkg/bbl:
801      - modification so it can work with z*
802      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
803      - global_with_exf/input.yearly verification; changes output.yearly.txt
804    o eesupp/src:
805      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
806        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
807      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
808        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
809      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
810      - when using MPI, always set usingMPI=T ; set default accordingly and stop
811        if not consistent.
812      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
813        argument is zero (in case called within single-thread section).
814    o pkg/fizhi:
815        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
816        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
817    o pkg/exch2:
818      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
819        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
820      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
821        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
822        with bad ones coming from a not-yet-updated halo.
823        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
824    o pkg/frazil:
825        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
826        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
827    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
828    o verification/lab_sea
829      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
830      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
831      * nTimeSteps 3 -> 4
832      * changed reference output accordingly
833    o pkg/ctrl:
834      * fix ctrl_get_gen for xx_sst, xx_sss
835    o pkg/fizhi:
836      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
837        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
838      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
839        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
840        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
841    o pkg/gmredi:
842      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
843    o pkg/fizhi:
844      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
845        (old)aces open64 tuv test.
846    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
847    o pkg/mom_vecinv:
848      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
849        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
850        with non-lin free-surf).
851    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
852      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
853      some compilers (gfortran 4.6.0 on MacOS)
854    o momentum:
855      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
856        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
857        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
858    
859    checkpoint63k (2012/03/17)
860    o model/src:
861       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
862         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
863       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
864         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
865    o model/src: solve_*diagonal.F
866       - replace division with multiplication by inverse (similar to original version)
867         update output of AD exp. global_ocean.90x40x15.
868       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
869         to enable the use of the vectorized & differentiable solve_tridiagonal.F
870       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
871         vertical advection (to get solve_tridiagonal tested in AD mode).
872    o pkg/seaice: ECCO-CLIVAR merge:
873      1. seaice AREA relaxation
874         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
875         * runtime flag: SEAICE_tauAreaObsRelax
876      2. modified global mean cost imbalance code: CPP option
877          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
878    o another iteration on solve_*diagonal.F
879       Make choices independent of AUTODIFF
880       Default will be the adjoinable vectorized version.
881       Alternative choices are:
882       * non-adjoinable original version with low memory footprint:
883         #define SOLVE_DIAGONAL_LOWMEMORY
884       * still adjoinable but does not vectorize (k as inner-most loop):
885         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
886    o testreport
887     - add option to use a home made wrapper around "make"
888     - remove MITGCM_IEEE env. variable (no longer active)
889    o pkg/shelfice
890     - improve computation of friction velocity for velocity dependent
891       exchange coefficients: include velocities into SHELFICEBoundaryLayer
892       block to average velocities vertically
893     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
894    o Modify diagonal solvers, now three versions (upon request):
895      #ifndef SOLVE_DIAGONAL_AUTODIFF
896        1. default version (dating back a while ago)
897      #else /* def SOLVE_DIAGONAL_AUTODIFF */
898      # ifdef SOLVE_DIAGONAL_KINNER
899        2. adjoinable version with k-innermost loop (G. Forget)
900      # else
901        3. adjoinable vectorized version of 2.
902      # endif
903      #endif /* SOLVE_DIAGONAL_AUTODIFF */
904      All flags are currently set within routines, but could/should be moved to CPP-options.
905      Array bounds for 1. are as before, for 2.,3. cover the entire domain
906      (could be changed for 1. too).
907    o verification/lab_sea (fwd):
908      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
909        use 7 categories (except hb87), new solve4temp params (except salt_plume),
910        constant salinity (=4) or variable salinity (salt_plume) done through
911        SItracer.
912    o pkg/seaice:
913      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
914      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
915         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
916        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
917        SEAICE_freeze got retired) but already better than previously with
918        SEAICE_freeze=123456.7 deg.C;
919      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
920        (safer multi-threaded setting); always set SEAICEuseEVP;
921      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
922        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
923        stop if multiple specifications for the same coeff; make sure default
924        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
925    o pkg/obcs:
926      - allow to switch to upwind 1rst order advection scheme for the advective
927        flux computation at the open-boundary; disabled for adjoint built.
928    o pkg/ptracers:
929      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
930      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
931      - add parameter to decide when to start a tracer; use internal flag to
932        know which tracer to step-forward; switch this internal flag at the top
933        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
934        for adjoint built.
935    o pkg/seaice:
936      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
937      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
938      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
939    o pkg/ecco:
940      - fix writing of output file DiagnosCost_ClimSalt/Theta
941        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
942    o pkg/seaice:
943      - add missing initialisation of COR_ICE array in dynsolver.F
944      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
945        compiled either way, and is tested in all exps (multidim was only tested
946        in lab_sea ad before).
947      - cosmetic change to prepare for future addition of ITD. no change to results.
948        no defaults change.
949      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
950      - by lack of adequate verification experiments, I further used custom versions
951        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
952        should be correct.
953      - avoid recomputations in ad.
954    o array initialisation in adjoint mode:
955      1) pkg/mom_common/mom_calc_ke.F:
956        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
957        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
958        part this initialisation is gone, resulting in Floating Point Exception
959        (caught by open64 compiler with debug option).
960      2) model/src/convective_weights.F
961        set output convectCount over the full array range (instead of doing
962        an update): this fix a similar issue when called within recomputation (adjoint)
963        which could by-pass the initialisation (normally done in the caller S/R).
964    o pkg/seaice:
965      - final version of turbulent flux params, as agreed at MIT ice meet:
966           SEAICE_mcPheePiston (default is ~ 0.000875)
967           SEAICE_mcPheeTaper (default is 0.)
968           SEAICE_frazilFrac (defualt is 1.)
969           SEAICE_mcPheeStepFunc (default is false)
970      - changes results at trunction error level
971      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
972    o added pkg/frazil:
973      - see frazil_description.tex for details
974      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
975    o pkg/shelfice/shelfice_thermodynamics.F
976      - fix exponents for velocity dependent exchange coefficients: change
977        from 2/3(=0) to 0.66666666666666667
978      - move computation of velocity dependent exchange coefficients into
979        separate loop, so that it applies to both thermodynamics
980      - move some divisions by constants out of loops
981    
982    checkpoint63j (2012/02/16)
983    o pkg/seaice:
984      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
985      - SItracer:  added run time params, and allow coupling to ocn salinity.
986    o pkg/seaice: remove (almost) all divisions by constants within loops
987      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
988      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
989      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
990      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
991    o pkg/seaice :
992      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
993        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
994      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
995      - add permanent SItflux diag that corresponds to TFLUX but includes
996        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
997      - allow activation/testing of a fix for suspected missing term in
998        ocn-ice heat budget (to be confirmed). To test this, you want to
999        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
1000        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
1001      - no change in results, fwd or ad.
1002    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
1003      - switch to variable freezing point.
1004           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
1005      - bug fix : the sublimation term that was missing is now activated.
1006           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
1007      - bug fix : flooding sign term for SIsal0.NE.0.
1008           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
1009    o pkg/seaice:
1010      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
1011        is now the default, and the old default constant freezing point is recovered
1012        with SEAICE_tempFrz0    = -1.96,
1013             SEAICE_dTempFrz_dS = 0.,
1014      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
1015      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
1016      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
1017        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
1018      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
1019        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
1020      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
1021        seaice_growth r149 for legacy branch (no results change).
1022      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
1023        from I. Fenty).
1024      - results did not change except for global_ocean.cs32x15, mostly due to the
1025        switch to variable freezing point (see above item for detail).
1026    o pkg/thsice:
1027      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
1028        seawater freezing in thsice_calc_thickn (not used).
1029    o pkg/seaice: turbulent flux term specification via run time params.
1030      - replace CPP switches with run time switches to facilitate testing
1031      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
1032                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
1033      - added runtime parameter : SEAICEturbFluxFormula
1034      - move Mcphee constants to SEAICE_PARAMS.h
1035      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
1036                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
1037                 remove seaice_summary call (moved to seaice_init_fixed)
1038      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
1039        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
1040      - seaice_summary.F : add missing report of read turbulent flux term set up
1041                           and SITRACER.
1042      - seaice_check.F : check range; inform and stop if retired CPPs are used
1043                         (incl. SEAICE_AGE).
1044      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
1045             CPP switch, same computation as before for the different options.
1046      - change results at the truncation level.
1047    o pkg/seaice:
1048      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
1049        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
1050        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
1051      - update verification/*/input*/data.seaice:
1052        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
1053        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
1054        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
1055        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
1056    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
1057      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
1058        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
1059        difference in results only due to machine truncation.
1060      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
1061        MaykutPolySatVap; keep MIN_LWDOWN.
1062      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
1063      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
1064        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
1065    o pkg/salt_plume:
1066      - isolate saltPlumeFlux array exch into a specific S/R called from
1067        do_oceanic_phys.F
1068      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
1069    o verification:
1070      - move untested set-up to MITgcm_contrib/verification_other.
1071    o pkg/seaice:
1072      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
1073    o pkg/seaice:
1074      - seaice_solve4temp.F (keeping results unchanged):
1075        * add 2 future run-time params to select which saturation vapor pressure
1076          formula is used and how post-iteration fluxes are set.
1077          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
1078        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
1079          the linearized expression to stay consistent with tsurf finding.
1080      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
1081        can be < 0.
1082    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
1083      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
1084        conductive heat flux F_c , and add it explicitly when updating tsurf as
1085        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
1086        so that now F_ia has a consistent meaning through the entire routine.
1087        This causes differences at truncation level: update output of fwd exp.
1088        global_ocean.cs32x15.seaice.
1089    o pkg/seaice:
1090      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
1091        of arrays, sign/direction of fluxes; no effect on results.
1092      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
1093        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
1094        note: this should have been done before changing celsius2K default.
1095      - to keep results unchanged, add back old value of celsius2K in verification
1096        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
1097      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
1098        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
1099        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
1100        freezing temp is consistent with value in seaice_growth.F ; this causes
1101        differences at machine truncation level: update lab_sea AD output (3/4).
1102    o pkg/seaice:
1103      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
1104        and climsst/sss even when using seaice (to prevent calculation that might
1105        use SST on land); does not affect any verification exp.
1106      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
1107        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
1108    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
1109      over land (non-legacy code)
1110    o vectorize salt_plume package:
1111      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
1112      - this code computes plumebk everywhere (also over land), thus requires
1113        code to avoid divisions by zero and catch the case of kLev=Nr.
1114      - efficiency of salt_plume_frac is still sub-optimal
1115    o tools (genmake2):
1116      - fix makefile NAME specification (option: -makefile NAME) by adding
1117        "-f $MAKEFILE" in few places where it was missing including makedepend
1118        command (contribution from Paul).
1119    
1120    checkpoint63i (2012/01/24)
1121    o model/src:
1122      - add factorized versions of some EOS code to find_rho.F,
1123        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
1124    o model/src:
1125      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
1126      - change default celsius2K from 273.16 to 273.15
1127      - to keep results unchanged, add back old value of celsius2K in verification
1128        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
1129         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
1130    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
1131      to make TAF generate vectorizable code
1132    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
1133       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
1134       have flags that do this more efficiently.
1135    o pkg/diagnostics/diagstats_calc.F
1136      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
1137    o pkg/obcs (with exch2):
1138      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
1139        and remove code (in obcs_readparms.F) which was based on EXCH of indices
1140        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
1141    o pkg/exf and seaice exp:
1142      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
1143        so that switching off area & heff advection flags does not affect results.
1144      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
1145      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
1146        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
1147        results of verification experiments: 1D_ocean_ice_column(fwd),
1148        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
1149        and offline_exf_seaice (all 4).
1150    o pkg/seaice:
1151      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
1152        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
1153      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
1154        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
1155        not multi-dim advection;
1156      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
1157        SHORTWAVE_HEATING #undef.
1158    o optim: make Makefile more robust (?)
1159    o pkg/obcs:
1160      * fix treatment of obcs_read_pickup for TAF
1161    o pkg/shelfice:
1162      * add missing initialisation of num_shifwflx
1163      * new adjoint verification exp. for isomip
1164      * change Prandtl and Schmidt numbers from generic formulations
1165        (in terms of model diffus. and visc.) to separate runtime
1166        parameters, with Holland and Jenkins (1999) default values.
1167    o pkg/exf (interpolation):
1168      - extended input field (2 rows) near the N & S poles:
1169        * fill in with the symetric value (when even Nb of data in longitude)
1170        * add average value at the poles only for scalar quantities ; for vector
1171          component interpolation, skip the averaging and keep duplicated values,
1172          unless the 2 components have same location (uvInterp=T) in which case
1173          interpolate the 2 components together using S/R EXF_INTERP_UV.
1174      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
1175        together: this allows to account properly for local orientation when
1176        averaging at N & S pole.
1177      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
1178        exf-interpolation near N & S poles. Undef by default.
1179      - add debug check/print on 1rst iter if debugLevel >=2.
1180    o pkg/exf:
1181      - change masking flags definition (no longer "parameter"), put them in
1182        common block and set them in S/R EXF_INIT_FIXED.
1183      - change recognized masking flag from s,u,v to c,w,s since the mask
1184        to use (maskC,W,S) depends on position on model grid and has little to
1185        do with scalar/vector difference; fix masking if using P-coordinates.
1186      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
1187        and update results of exp. global_with_exf (x2).
1188      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
1189    o pkg/obcs
1190      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
1191    o pkg/exf (interpolation):
1192      - assume periodicity in X only if input field cover full longitude range.
1193      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
1194        and should vectorise).
1195      - fix input lat of the 2 added row (in case we provide N.pole data).
1196    
1197    checkpoint63h (2011/12/30)
1198    o pkg/seaice:
1199      - change declaration of UVM from _RL to _RS in order to get B-grid
1200        uIce,vIce monitor when _RS = real*4
1201    o pkg/offline:
1202      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
1203      - compute vertical velocity if not read from file (switch on exactConserv
1204        & staggerTimeStep);
1205      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
1206    o verification:
1207      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
1208        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
1209        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
1210      - update output of exp. global_ocean.cs32x15.viscA4 after changing
1211        grid-file angles (used here for coriolis-3d);
1212      - remove (or gzip) few files not needed to run fizhi-cs experiments.
1213    o pkg/exf (vector interpolation):
1214      - rotate vector component toward local grid-axis orientation using grid-angles
1215        (stored in GRID.h) instead of locally computed rotation angle; keep old code
1216        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
1217    o pkg/seaice:
1218      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
1219        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
1220    o pkg/PKG_OPTIONS.h files:
1221      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
1222        outside of the #ifdef ALLOW_THISPKG / #endif block.
1223      - update verification/*/code/PKG_OPTIONS.h files.
1224    o add a verification experiment (offline_exf_seaice/input.seaice) that test
1225      the B-grid LSOR solver
1226    o pkg/seaice: sort out emissivity and long wave radiation step 2:
1227      - add emissivity for snow and ice as new run-time parameters
1228        (unfortunately) that default to the corresponding exf values; this
1229        changes results in most verification experiments so that for backward
1230        compatibility these parameter have to be set explicitly to inconsistent
1231        values (ugly);
1232      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
1233        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
1234        until we agree how to handle this bug properly
1235    o pkg/exf (interpolation):
1236      - add a set of run-time param ({inputfield}_interpMethod), one for
1237        each interpolated input field, to select the interpolation method
1238        with a value of zero switching off the interpolation;
1239      - print interpolation parameters to standard output;
1240      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
1241        (to use instead runoff_interpMethod=0 in data.exf).
1242      - simplify default setting of interpolation parameters (for all fields,
1243        set position to match model grid cell-center position, leading to trivial
1244        interpolation in case of regular Lat-Lon grid) and fix for the case of
1245        non-uniform delY.
1246    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
1247       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
1248       this factor is absolutely required, because the lw exitance (= out-going
1249       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
1250       where the reflectivity rho = 1-emissivity for conservation reasons. Once
1251       this is established, we can remove the CPP-Flag (if we want to).
1252    o pkg/seaice:
1253      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
1254        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
1255      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
1256        what the name implies (and not emissivity*BoltzmannConstant), this means
1257        the old default value of 5.5e-8 now means
1258        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
1259        S/R exf_readparms
1260      - FV-discretization of the B-grid LSOR solver, turn on with
1261        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
1262        of the calling routine dynsolver, so that B and C-grid code look a
1263        little more alike.
1264      - fix index bugs in ostres.F (B-grid code)
1265    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
1266    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
1267      default for SEAICE_emissivity, if useEXF; requires setting a wrong
1268      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
1269      backward compatiblity
1270    o model/src: use sigmaR in calc_ivdc
1271    
1272    checkpoint63g (2011/12/16)
1273    o pkg/seaice/seaice_growth.F:
1274      fix heat conservation of the coupled ocean-seaice system.
1275      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
1276      solid vs liquid water treatment is resolved via QNET.
1277    o pkg/seaice/seaice_growth.F:
1278      add missing term for sublimation in saltFlux, which was breaking conservation.
1279    o pkg/seaice/seaice_model.F:
1280      Remove this patholigical case treatment in evolution branch,
1281      where it is un-necessary and breaks conservation.
1282      Update global_ocean.cs32x15/results accordingly for
1283      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
1284    o model/src:
1285      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
1286      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
1287    o pkg/obcs:
1288      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
1289      tendency for temperature and salinity that is then applied to update
1290      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
1291      horizontal advection and diffusion contributions on the boundary (in
1292      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
1293      removing the mask in S/R timestep_tracer. The advantage of this approach is
1294      that the updated tracer values include contributions from the surface
1295      forcing and vertical diffusion.
1296      This modification changes exp4.stevens because of vertical diffusion.
1297    o model/src:
1298      change non-curvilinear grid setting to also work with exch2 + blank tiles:
1299      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
1300        face dimensions.
1301      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
1302        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
1303        and INI_SPHERICAL_POLAR_GRID.
1304      change test-experiment global_ocean.90x40x15:
1305      - split the domain in many more tiles (9x4 tiles of 10x10 each);
1306      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
1307      - update results of both test (std & dwnslp).
1308    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
1309       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
1310    o model/src:
1311      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
1312        and fix initialisation when using sigma-coords.
1313    o model/src:
1314     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
1315       to their current value at the beginning of forward_step.F": add a new run-time
1316       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
1317     - set doResetHFactors=T in the following test exp:
1318        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
1319        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
1320        and tutorial_global_oce_in_p (nonLinFS in p)
1321    o pkg/ecco
1322      - added IES cost term
1323    o verification/advect_xz
1324      - scale down the depth by 1/100 (from 200 km to just 2.km)
1325      - add secondary test using divergent flow, r-star and implicit vertical advection.
1326      - add note (check_conserve_TS.txt) and matlab script to check global
1327        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
1328    o pkg/rbcs:
1329      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
1330    o pkg/obcs (Stevens BCs):
1331      - fix various problems in the phase speed computations of the Stevens
1332        boundary conditions:
1333        - sign error for western and southern boundaries,
1334        - time tendencies were underestimated by factor of dTracerLev and some just
1335          zero (for multidim advection schemes) -> now estimate time tendencies
1336          from difference between previous (n) time level and the one before (n-1);
1337          this requires storing a field per tracer per boundary, also in the pickup
1338          files.
1339        - replace deltaTmom in cflMer/Zon computation with dTracerLev
1340        - set default phase velocity to cflMer/Zon
1341      - update verification experiment exp4.stevens
1342    o pkg/generic_advdiff (implicit_r):
1343      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
1344        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
1345      - fix implicit vertical diffusion or advection with NonLin FreeSurf
1346        (was using current recip_hFacC instead of future recip_hFacC): set future
1347        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
1348        solver S/R ;
1349      - fill diagnostics of vertical advective fluxes (computed from tendency)
1350        when using implicit vert. advection;
1351      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
1352         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
1353         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
1354         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
1355    o pkg/diagnostics:
1356      - add diags for T & S tendency which goes through Adams-Bashforth.
1357    
1358    checkpoint63f (2011/11/30)
1359    o pkg/obcs/obcs_calc_stevens.F:
1360      - join some loops to reduce number of if-statements
1361      - fix a bug in code for northern and southern boundaries.
1362    o pkg/seaice/seaice_init_varia.F
1363      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
1364        caused zero ice-velocities for the B-grid code
1365    o pkg/seaice/seaice_init_fixed.F
1366      - fix a bug in the initialisation of the second metric terms
1367        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
1368      - this affects all seaice configurations with useCurviLinearGrid = .true.
1369        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
1370        = .true. (default)
1371      - the only verification experiment affected is global_ocean.cs32x15:
1372        icedyn, seaice, and seaice_dynmix (AD)
1373    o pkg/thsice/thsice_diagnostics_state.F
1374      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
1375        not contain garbage that can lead to surprises in diagstats_calc.F
1376    o model/src:
1377      - move bi,bj loops inside INTEGR_CONTINUITY ;
1378      - call INTEGR_CONTINUITY directly from forward_step.F
1379        (previously called from momentum_correction_step.F)
1380      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
1381        forward_step.F and pkg/ecco/the_main_loop.F
1382    o model/src/do_oceanic_phys.F:
1383      - reset addMass to zero only if useICEFRONT ;
1384      - separated k-loop for rhoInSitu calculation ;
1385      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
1386        and at constant T,S (= WdRHOdP);
1387      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
1388        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
1389        transport of locally-referenced potential density);
1390        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
1391    o gluemnc:
1392      - replace ncrcat with ncks when adding variables to *.glob.nc
1393      - change the way variables without record dimensions are handled so that
1394        files that have variables with and without record variables can be glued:
1395        add a record dimension with a new unique name to be able to differentiate
1396        between variable with and without a-prior record dimensions. Remove
1397        this record dimension before adding the variable to the *.glob.nc file.
1398        This procedure automatically works also for grid.*.nc files that do not
1399        have any record dimension.
1400    o verification/cpl_aim+ocn:
1401      - generate new reference output on baudelaire (gfortran, mpich2) (previously
1402        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
1403    o pkg/obcs/obcs_calc_stevens.F:
1404      - add code for northern and southern boundaries.
1405      - reorder some loops to save some operations and so that drFBar can be scalar
1406    o model/src:
1407      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
1408        truncation) and add diagnostics for Adams-Bashforth tendency increment.
1409      - update test-exp. AD output:
1410        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
1411      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
1412        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
1413        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
1414        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
1415        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
1416        tutorial_plume_on_slope.
1417    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
1418      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
1419      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
1420      does not even come with an F77 compiler anymore, this should not be
1421      a limitation
1422    
1423    checkpoint63e (2011/11/06)
1424    o pkg/seaice adjoint of LSR:
1425      - substantially rework STORE dirs.
1426      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
1427        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
1428        and only perform SOLV_MAX_FIXED adjoint iters.
1429        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
1430        always goes to same record, meaning that the last forward field will be
1431        the one used in the adjoint - an approximation.
1432      - now produces non-zero LSR-related gradients, and acceptable gradients for
1433        An's zonal (x-z) test case (to be checked in)
1434      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
1435        (but these are screwed up by the thermodynamics in the first place);
1436        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
1437        output_adm.txt also reflects changes to seaice_lsr
1438      - global_ocean.cs32x15:
1439        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
1440          (output_adm.seaice.txt was updated)
1441        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
1442          (output_adm.seaice_dynmix.txt)
1443    o test-exp. exp4+stevens:
1444      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
1445    o pkg/seaice (lsr solver):
1446      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
1447        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
1448      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
1449      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
1450        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
1451      - compute (with new S/R) and print initial (+ free-driff sol. if available)
1452        and final residual of linearised system.
1453    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
1454      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
1455    o pkg/obcs: Stevens BCs (still only for east and west)
1456      - fix Stevens BCs by using intermediate velocities of previous
1457        time step as "baroclinic" contribution rather velocity of one grid cell
1458        inside the boundaries; more consistent but makes the entire treatment
1459        more complicated, requires new pickup files and two new S/Rs:
1460        obcs_copy_uv_n and obcs_save_uv_n
1461        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
1462        (undefined by default)
1463      - silently move computation of some grid factors into separate loops to
1464        save some recomputations
1465      - add a hack for non-linear free surface
1466      - add a verification experiment to exp4 that tests this code
1467    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
1468    
1469    checkpoint63d (2011/10/25)
1470    o pkg/obcs + seaice-dynamics:
1471      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
1472        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
1473        values (consistent with an implicit method).
1474      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
1475        return to older implementation (same results as before); note that none of
1476        the "experimental" OBCS_SEAICE options are implemented in the new version.
1477      - switch test exp. seaice_obcs to use new version (update output).
1478    o pkg/seaice:
1479      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
1480      - add parenthesis in Water-Ice drag calculations (evp & lsr);
1481      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
1482        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
1483      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
1484        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
1485    o pkg/layers:
1486      - Include potential density as new coordinate (Thanks to David Munday)
1487    o pkg/dic:
1488      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
1489        carbonate computation/output to CALC_PCO2_APPROX
1490    o pkg/generic_advdiff
1491      - make TAF generate code that vectorizes:
1492        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
1493    o model/src:
1494      - improve vectorization also for adjoint code of
1495        solve_tridiagonal and solve_pentadiagonal. As this requires up to
1496        5 new 3D-fields, this code is only turned on for the combination of
1497        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
1498        for singular matrix check (only for TARGET_NEC_SX).
1499      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
1500        ALLOW_AUTODIFF. This flag now needs to be set outside of
1501        solve_tri/pentadiagonal.F
1502    o pkg/exf:
1503      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
1504        optional namelist EXF_NML_OBCS).
1505      - add many debug-print (to trace down where pkg/cal error msg comes from)
1506    o pkg/mom_vecinv/mom_vi_hdissip.F
1507      - rearrange loops so that vectorization is improved and in particular
1508        the adjoint routine vectorizes. The code is a little longer now, but I
1509        think easier to read.
1510        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
1511    o pkg/seaice:
1512      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
1513    o pkg/exch2:
1514      - alternative code (without tile x tile matrix) for cumulated (global) sum;
1515        used as default; keep using matrix version in adjustment.cs-32x32x1.
1516    o tools/build_options:
1517      - after merging some MPI and/or multi-threads specific optfiles so that
1518        the modified default optfile support both built (using genmake2 -mpi
1519        for the MPI built, using genmake2 -omp for OpenMP built),
1520        move now obsolete optfiles to tools/build_options/unsupported/
1521       (add copy of email sent to support list in doc/optfiles_changes.txt)
1522    
1523    checkpoint63c (2011/09/28)
1524    o pkg/ebm:
1525      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
1526        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
1527    o pkg/seaice (SItracer pickup)
1528    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
1529      To be done:
1530      - thorough testing of missing fields in S/R seaice_read_pickup
1531      - thorough matching between generic tracers and specific fields used
1532        (e.g. volume-weighted age, area-weighted age, salinity, ...)
1533    o pkg/grdchk:
1534      - all procs calculate and print finite-difference gradient (for testreport)
1535      - change description output used by testreport;
1536      - AD testing: also compare and report Finite-difference gradient;
1537        => update all output_adm*.txt
1538    o test exp. global_ocean_ebm:
1539      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
1540        and turn on exactConserve; update (fwd) output.
1541    o pkg/seaice (LSR):
1542      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
1543      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
1544        * identical results with non-CS topology (but save up to half of EXCH calls)
1545        * no much changes in cs-32 verification tests since no ice at face edges
1546         (differences due to convergence criteria, since nb of iterations changed)
1547        * expect some differences on lat-lon-cap grid.
1548        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
1549    o pkg/exch2:
1550      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
1551        many tiles); until alternative coding is added, just add a stop.
1552    o pkg/kpp:
1553      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
1554        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
1555    o optfiles:
1556      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
1557        into corresponding standard one, which now support different build:
1558        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
1559      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
1560    o pkg/obcs (seaice):
1561      - add missing EXCH for uIce,vIce after applying OBCS;
1562      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
1563        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
1564        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
1565      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
1566      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
1567        and eedata.mth for MPI and mutlti-threaded testing.
1568    o pkg/flt:
1569      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
1570      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
1571      - fix pickup and trajectories + profiles output with multi-threads;
1572      - add parameter to select group of fields to write along trajectory and
1573        profile (default unchanged);
1574      - only call PORT_RAND* function when flt_noise <> 0;
1575      - add multi-threaded test for verification exp. flt_example.
1576    o eesupp/src:
1577      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
1578      - USE_OMP_THREADING: check that number of threads (from eedata) matches
1579        actual number (from env.var. setting).
1580  o pkg/ebm:  o pkg/ebm:
1581    - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.    - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
1582    - add multi-threaded test for verification exp. global_ocean_ebm    - add multi-threaded test for verification exp. global_ocean_ebm

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