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revision 1.1295 by jmc, Sat Sep 11 21:39:13 2010 UTC revision 1.1762 by mlosch, Wed Nov 7 09:59:57 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 pkg/seaice:
8      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
9        + add (SEAICE.h) and rename some counters (initiliased in
10          seaice_init_fixed.F)
11        + add _BEGIN/END_MASTER (myThid)  around print statements
12        + print total number of iterations and failures over SEAICE_monFreq
13          interval to STDOUT
14      - move control over output-messages by fgmres to seaice_jfnk to save
15        some operations
16      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
17        in order to make restarts with sol .ne. zero (fgmres with restarts)
18        (seaice_jfnk.F, seaice_fgmres.F)
19      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
20        a serious convergence problem when open boundaries are involved
21    o pkg/ggl90: fix computation of control volumes for the case of
22      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
23      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
24    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
25    o pkg/autodiff
26      - Add inAdMode switch for SEAICEuseDYNAMICS:
27        SEAICEuseDYNAMICSinAdMode
28        (extend logic in ADAUTODIFF_INADMODE_SET)
29    o pkg/seaice
30      - Step 1 of merging ice-thickness distribution (ITD) code from
31        MITgcm_contrib/torge/itd/ (author: Torge Martin)
32        The code implements concept laid out in Thorndike et al. (1975);
33        code is enabled via CPP flag SEAICE_ITD
34        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
35        code is not complete yet!!
36      - SEAICE_SIZE.h now included in almost all seaice routines
37    o verification (using seaice):
38      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
39        global_ocean.cs32x15.seaice ; update results.
40      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
41      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
42        offline_exf_seaice (previously compiling B-grid).
43    o pkg/exf:
44      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
45        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
46        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
47    o pkg/layers (adjust changes from Sept 19):
48      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
49        this allows to remove "layers_maxNum" dimension from all layers arrays.
50    o pkg/layers (adjust changes from Sept 19):
51      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
52      - snap-shot extended to all type of layers (not just the 1rst type);
53      - remove layers variables when corresponding CPP option is undef.
54    o pkg/layers:
55      - rename pkg/layers variable and add new output (layer exist & un-weighted
56        velocity in layer)
57    o pkg/seaice:
58      - simplify (?) ocean-drag coefficent computations by using
59        the same routine in all three solvers (saves some code lines)
60      - remove global fields DRAGA and DRAGS from C-grid code and
61        declare them locally in lsr.F (the only place where they are
62        still used)
63      - update AD output of lab_sea.evp (very sensitive anyway).
64    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
65      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
66      and SEAICEuseJFNK=.true. A few things to note:
67      - involves a FGMRES, that is parallel but very inefficient,
68        because of many scalar products (global sums) in the Gram-Schmidt
69        orthogonalization method. Needs to be replaced. Original code
70        from J.-F. Lemieux
71      - preconditioner for FGMRES is a stripped down version of LSOR
72      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
73        preconditioner. For the preconditioner, the default is set to 10.
74      - Jacobian times vector is computed with finite differences
75      - marginally related to JFNK-solver: add a smooth regularization for
76        zeta with tanh that will improve convergence (Lemieux and Tremblay,
77        2009) for any implicit solver (not implemented for EVP because EVP
78        does not need this regularization in the first place). Define
79        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
80    o eesupp/src:
81      - check in genmake2 that intrinsic S/R flush is available.
82      - add S/R to flush IO unit (if intrinsic S/R flush is available)
83      - flush standard & error msg unit before MPI termination
84      - if debugMode, flush IO unit after printing msg
85    o pkg/ctrl:
86      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
87        to ctrl_set_unpack_xyz.
88    
89    checkpoint64 (2012/10/09)
90    o pkg/shelfice
91      - in mom_fluxform.F, mom_vecinv.F:
92        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
93        Bug fix KappaRU -> KappaRV
94        does not change verification/isomip but may change other setups
95        (presumably constant KappaRU=KappaRV)
96      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
97    o pkg/obcs:
98      - fixed some indexing bugs in obcs_seaice_sponge.F
99      - added obcs relaxation subroutines for HSALT and HSNOW
100      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
101    o pkg/seaice:
102      - add "multicategory" parameterization for snow in analogy to ice,
103        default is off for now.
104    o pkg/obcs:
105      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
106        see verification/seaice_obcs/input.seaiceSponge for example application.
107      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
108        index setting by master-thread. This fix multi-threads Pb in previous modifs.
109    o pkg/layers :
110      - add diagnostics to pkg/layers
111      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
112        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
113    o pkg/generic_advdiff/gad_implicit_r.F :
114      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
115    o pkg/seaice/seaice_growth.F:
116      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
117    o pkg/obcs:
118      - change default setting of OBCS_UVICE_OLD from defined to undef;
119      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
120        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
121      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
122      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
123        with Southern & Western OB at a tile edge (at least in a simple set-up).
124    o pkg/obcs:
125      - change settings of OB index in case OB coincides with tile edge (shared by
126        2 tiles), so that common OB location is registered by both tiles (instead of
127        only 1). However, for Southern and Western OB, index value = 0 is not
128        recognized as valid OB index (=default null value) and needs to be fixed.
129      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
130      - new parameter "OB_indexNone" for null index value (for now, still zero)
131        to replace hard-coded null index value of zero.
132    o pkg/exch2:
133      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
134        always check buffer-size (but outside the loop); move checking for valid
135        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
136        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
137    o pkg/ctrl (pack & unpack):
138      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
139        (locally defined) for different variables (+ remove the variable-specific
140        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
141        (to be extended to other local file names in ctrl.h).
142    o pkg/flt:
143      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
144    o pkg/mdsio:
145      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
146    o tools/genmake2:
147      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
148        (added by Alistair in version 1.51 for building without make depend);
149      - remove Header files list (H_SRC_FILES) from the dependence of targets
150         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
151        place in version 1.23): this save going through staf when unrelated header
152        file has been modified.
153       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
154        "make depend" step, still need to do "make links" before "make adtaf".
155    o eesupp/src (+ few pkg src files) & genmake2:
156      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
157      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
158      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
159         upper/lower case ; account for space between "#" and undef/define)
160    o pkg/flt (with exch2):
161      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
162      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
163    
164    checkpoint63s (2012/09/05)
165    o pkg/ecco:
166      - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.
167      - add more relevant #ifdef ALLOW_SMOOTH ones.
168      - sort out useAtmWind, useSMOOTH, ctrlSmoothCorrel2D.
169    o pkg/ctrl:
170      - CTRL_OPTIONS.h : document CPPs related to smoothing; ALLOW_SMOOTH_CORREL2D/3D,
171        ALLOW_CTRL_SMOOTH, ALLOW_SMOOTH_CTRL2D, ALLOW_SMOOTH_CTRL3D.
172      - ctrl.h : document run time params doInitXX, doMainPack, doMainUnpack, doPackDiag,
173        doSinglePrecTapelev (audodiff param!), ctrlSmoothCorrel2D (new) and
174        ctrlSmoothCorrel3D (new).
175        The added ctrlSmoothCorrel2D/3D replace the old ALLOW_SMOOTH_CORREL2D/3D CPP.
176      - ctrl_readparms.F : initialise ctrlSmoothCorrel2D/3D and read from namelist.
177      - ctrl_init.F ctrl_pack.F ctrl_unpack.F : switch off ustress/vstress
178        controls when useAtmWind, and vice versa.
179      - ctrl_map_ini_ecco.F : UVEL0, VVEL0, edtaux, edtauy cannot be smoothed as tracers.
180      - ctrl_get_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL2D with
181          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel2D, IF useSMOOTH.
182      - ctrl_map_ini_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL3D with
183          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel3D, IF useSMOOTH.
184      - ctrl_set_pack_xy[z].F, ctrl_set_unpack_xy[z].F:
185        replace ALLOW_SMOOTH_CORREL2D/3D brackets with ctrlSmoothCorrel2D/3D.
186    o pkg/smooth:
187      - remove un-necessary includes.
188      - remove ALLOW_SMOOTH*D and ALLOW_SMOOTH_CORREL*D brakets.
189        Those CPP options were never defined, and not necessary.
190    o model/src:
191      - fix CPP brackets in ini_mixing.F (GM_background_K belongs to gmredi).
192      - standard treatment of useSMOOTH.
193    o pkg/autodiff:
194      - add LOGICAL useGGL90inAdMode, useGGL90inFwdMode, useSALT_PLUMEinAdMode,
195        useSALT_PLUMEInFwdMode allowing to switch off ggl90 and salt_plume adjoint.
196    o pkg/exch2:
197      - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)
198        + start to remove ALWAYS_USE_MPI in source code that TAF does not see.
199      - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag
200        and tiles to process mapping.
201      - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)
202        moving /EXCH2_FILLVAL_RX/ & /W2_EXCH2_COMMFLAG/ to W2_EXCH2_TOPOLOGY.h;
203        rename "exch2_tProc" to "W2_tileProc" and move seting of e2FillValue_RX
204        from w2_eeboot.F to w2_readparms.F.
205    o eesupp/src:
206      - set exchNeedsMemsync & exchUsesBarrier according to "usingMPI" (instead of
207        ALWAYS_USE_MPI) + moved from ini_communication_patterns.F to eeset_parms.F;
208        also move setting of exchCollectStatistics from exch_init.F to eeset_parms.F
209      - in eedie.F and all_proc_die.F, always call MPI_FINALIZE when ALLOW_USE_MPI
210        is defined (remove condition on usingMPI) to match cases where MPI_INIT
211        has been called.
212      - fix bug I put in previous modif of exch_sm_3d_rx.template (not much used);
213      - change default (non-MPI) value of myPid (from 1 to 0) to match MPI settings
214        (so that on 1 proc, get same myPid independently of usingMPI)
215      - add a stop if multi-procs but usingMPI=F ; stop also if usingMPI=T and
216        useCubedSphereExchange with EXCH-1 (safer).
217      - add "if usingMPI" where it was missing (+ start to remove ALWAYS_USE_MPI).
218    o pkg/ggl90:
219      - fix bug in filling corner mask array "mskCor" (FILL_CS_CORNER_TR_RL call)
220        used in ALLOW_GGL90_SMOOTH code.
221    o pkg/flt:
222      - fix typo in FLT_WITHOUT_Y_PERIODICITY (the effect was to ignore stopping
223        floats at the Southern end of the domain).
224    o eesupp/inc:
225      - add a list of CPP-options which can be set by Makefile (DEF_IN_MAKEFILE.h);
226        but not used (and not to be used) anywhere, just for documentation.
227    o pkg/autodiff, exf, ptracers & seaice (AD & TL output):
228      - comment out the very nasty "writeBinaryPrec = writeStatePrec" line, since:
229        a) can damage previously written records in any other multi-record files.
230        b) if needed, can easily do it cleanly, by calling S/R WRITE_REC_3D_RL/S.
231    o tools/genmake2:
232      - define variable MAKE within Makefile and use it in place of 'make';
233      - update AD_CONFIG.h (if needed) before building any of the executable
234        (forward, adjoint or tangent-lin); this involves a 2nd invocation of make;
235        and add the usual #ifndef/#define AD_CONFIG_H in AD_CONFIG.h;
236      - always print usual warning comment 'this file is automatically generated'
237        from script convert_cpp_cmd2defines (+ remove this warning from genmake2).
238    o pkg/cheapaml:
239      - updated to correspond to the code used in accepted paper (Nico Wienders).
240    o pkg/exf:
241        added run time switch useAtmWind to replace ALLOW_ATM_WIND cpp switch.
242        ALLOW_ATM_WIND now just sets the useAtmWind default (see exf_readparms.F)
243        and force defines ALLOW_BULKFORMULAE (EXF_OPTIONS.h).
244    o pkg/exf, autodiff, ctrl, ecco and seaice:
245        remove ALLOW_ATM_WIND brackets, or replace them with useAtmWind ones.
246    o pkg/ctrl, ecco:
247        allow to compile both ALLOW_U/VSTRESS_CONTROL and ALLOW_U/VWIND_CONTROL.
248        Depending on useAtmWind, one is inactive, and the other is active (see
249        exf_getffields.F/exf_getsurfacefluxes.F).
250    o tools/genmake2:
251      - improve error msg when failing in 2nd test of check_for_broken_Ff
252      - fix option '-makefile' short-name (-mf according to genmake2 -help)
253      - source local config file "genmake_local" just after processing the genmake2
254        command arguments (previously done before processing arg).
255    o pkg/grdchk:
256      - add a call to TURNOFF_MODEL_IO for Tangent-Linear run (in this case, call
257        to this routine from cost_final has been dropped in g_cost_final)
258      - improve printed information (more explicit msg, no longer using "print *,"
259         fix fcpertminus printed value).
260    o model/src:
261      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
262        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
263        this prevents getting cost-funct reset in adinitialise_varia recomputations.
264    o pkg/dic:
265      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
266        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
267    o pkg/grdchk:
268      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
269      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
270    o pkg/autodiff/ctrl/grdchk :
271      - attempt to sort out what works and what does not,
272        with regard to I/O, and to warn/stop accordingly.
273    o pkg/grdchk:
274      - attempt to fix grdchk in the case of useSingleCpuIO.
275      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
276       statements were moved from grdchk_main.F and into
277       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
278      - a global sum is applied to record numbers icvrec/layer
279       out of grdchk_loc so that they be passed to I/O routines.
280    o pkg/smooth:
281      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
282        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
283    o verification/testreport:
284      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
285      - can also use compressed (gzip) reference output file;
286      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
287        to be easier to collect by testreport.
288      - update existing TLM output (half out-of-date by more than 3 yrs).
289      - report NETCDF & LAPACK settings (from genmake2) in output dir.
290      - report run-time in each individual summary (previously only for AD test);
291        for TLM test, add also TAF version.
292      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
293    
294    checkpoint63r (2012/08/15)
295    o tools/genmake2:
296      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
297    o pkg/ecco/ecco_cost_final.F :
298      - fix fc print statements (to stdout and costfunction0000) so
299        that the printed value is always after the global sum.
300    o pkg/seaice/seaice_dynsolver.F :
301      - fix ice strength assymptote at SEAICE_area_max<1
302        (no change for the standard case of SEAICE_area_max=1)
303    o some cleaning:
304      - pkg source files: ensure that all *.F files from each pkg included the
305        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
306        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
307        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
308        includes;
309      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
310      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
311        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
312        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
313      - update option-file CPP_OPTIONS.h of all AD experiments:
314        * no longer include PACKAGES_CONFIG.h ;
315        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
316        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
317          including ECCO_CPPOPTIONS.h).
318    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
319      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
320        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
321        not necessary accurate).
322      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
323        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
324        deliberately break compilation (a remainder that it needs to be customized)
325      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
326      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
327      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
328    o tools/genamke2:
329      - check for lapack.
330    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
331      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
332        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
333        from both packages.
334      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
335      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
336      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
337        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
338    o pkg/cost : add comments to explain special and/or untested setups.
339    o pkg/exf:
340      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
341        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
342    o verification/*/code_ad:
343      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
344      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
345      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
346        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
347    o pkg/seaice :
348      - added possibility to change ice strength/PRESS0 relationship to
349        HEFF, according to the following run time parameters
350        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
351        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
352        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
353    o pkg/ggl90 :
354      - added run time flag mxlSurfFlag to include the code that ensure
355        mixing between first and second level (previously included as a comment)
356    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
357      - add test of newly added dumpAdByRec=T option where
358        we write all records to one file per variable.
359    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
360      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
361        to check that this code is ok with taf and compiles in adjoint.
362    o pkg/autodiff :
363      - added run time param dumpAdByRec : ad dump format switch.
364        If true then write all records to one file per variable.
365        Else write one file per record (remains the default).
366      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
367    o pkg/seaice:
368     - Added SEAICEuseTILT run time switch : if set to
369       false then omit the tilt term in seaice dynamics.
370     - Fix free drift calculation.
371    o pkg/shelfice:
372      When initializing SHELFICEDragQuadratic, set default to be
373      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
374      but retain option to set it independently
375      (inconsistenty spotted by Veronique Dansereau)
376    o eesupp/inc:
377      - in EEPARAMS.h, add real-type constant for some frequently used simple number
378         (0,1,2,1/2), with name explicitly referring to RS/RL type.
379    o model/src:
380      - move balancing of relaxation terms to new S/R balance_relax.F.
381    o pkg/autodiff:
382      re-write active I/O high-level (control) S/R:
383      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
384      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
385      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
386        MDS_READ/WRITE_FIELD); change loops to multi-threads.
387      - update and merge active_file_control_slice.flow into active_file_control.flow
388      - update the calls in lower level S/R (active_file.F, active_file_g.F and
389        active_file_ad.F) keeping the argument list and function unchanged.
390      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
391        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
392      - new low-level active I/O routines, one for each type (RL/RS), for active var
393        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
394        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
395        right type.
396    o autodiff and RS=real*4:
397      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
398        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
399      - change argument type of 3-D mask argument to _RS to match type in the call
400        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
401    o pkg/thsice:
402      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
403      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
404        fresh-water flux: uniform correction or proportional to local precip.
405    o pkg/ctrl:
406      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
407      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
408                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
409      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
410    
411    checkpoint63q (2012/07/30)
412    o pkg/autodiff:
413      note about monitor and snap-shot of ad-variables:
414      a) need to apply ADEXCH before monitor or output of ad-vars to include
415       overlap contributions (was done for adjDump but missing for monitor).
416      b) since ADEXCH implies adding overlap values to interior array, machine
417       truncation error is expected when adding an ADEXCH call in the middle of
418       the time-stepping (although mathematically identical).
419      modifs:
420      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
421        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
422      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
423        apply ADEXCH before monitor or snap-shot of ad-variables:
424           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
425      - implement new method (copy+adexch) for snap-shot and monitor of main model
426        ad-vars (initially not used by default -> output unchanged).
427      - change default (set to 2) to use new method and update few output_adm.txt
428        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
429        and both tutorial_tracer_adjsens tests).
430      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
431        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
432    o pkg/ctrl:
433      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
434      generic control variables via
435      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
436      Only required customization should be S/R ctrl_map_ini_genarr.F
437      (routine in repository contains example)
438    o pkg/exf:
439      - fix and refine checking of surface-relaxation setting when using EXF
440    o verification (adjoint exp):
441      - reduce length of simulation by half for experiment global_ocean.cs32x15
442        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
443    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
444      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
445        of KE that can occur with aggressive optimization
446      + put quadratic bottom drag calculation in separated loops (only done if
447        using bottomDragQuadratic)
448    o model/src: CG2D_NSA
449      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
450         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
451      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
452         change cg2d residual target to be expressed in Wunits (=> do not normalise
453         RHS ; this fix global_max Pb with TAF); update output.
454    o verification/tutorial_tracer_adjsens:
455       improve parameter consistency (and get rid of warnings):
456       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
457       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
458       - use staggerTimeStep (for stability) in som81; use default rotation period.
459    o pkg/exch2:
460      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
461        reset to 0 = 1 long line in X)
462    o pkg/mdsio:
463      - fix reading of dimensions from meta file for large-size domain
464    o model/src:
465      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
466      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
467        Cubed-Sphere Exch with CS-corners inside the domain;
468        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
469        globalArea and to set hasWetCSCorners.
470      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
471        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
472      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
473        useCDscheme and useCubedSphereExchange).
474    o pkg/seaice/seaice_growth.F :
475      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
476        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
477        when the previous code was not correct.
478      - in all cases diagnoze the boundary condition mismatch to SIaaflux
479      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
480        that term to QNET (essentially to set the melt/freeze water to 0degC).
481        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
482    o verification/global_ocean.cs32x15/input.seaice :
483      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
484      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
485      - update results (output.seaice.txt) accordingly.
486    o verification/lab_sea/input/data.seaice :
487      - remove SEAICEheatConsFix, which is now be tested
488        in global_ocean.cs32x15. The presently coded fix
489        is only consistent with real fresh water + nlfs.
490      - update results (output.txt) accordingly.
491    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
492    o AD_CONFIG.h file:
493      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
494      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
495        add it explicitly in each fortran src file where it is needed.
496        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
497        thus introducing potentially wrong dependency; therefore, better to include
498        it only where it's really needed, and after any other included OPTIONS file
499        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
500        or ALLOW_TANGENTLINEAR_RUN).
501    
502    checkpoint63p (2012/07/06)
503    o pkg/autodiff:
504      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
505      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
506        which are now read from new parameter file "data.autodiff" (inAdExact
507        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
508      - add file "data.autodiff" in all verification/*/input_ad/ directories.
509      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
510        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
511    o verification/tutorial_tracer_adjsens/
512      - add extra sub-verification which uses "SOM" advection scheme
513        (2nd Order-Moment Advection Scheme, Prather Limiter) with
514          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
515        and in data:
516          multiDimAdvection=.TRUE.,
517          tempAdvScheme=81,
518          saltAdvScheme=81,
519    o model/src:
520      - introduce ALLOW_BALANCE_RELAX which allow the removal
521       of the global mean of relaxation terms by setting
522       balanceThetaClimRelax and balanceSaltClimRelax
523      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
524       This case is now treated appropriately in seaice_growth.F
525    o pkg/seaice:
526      - do balanceEmPmR and balanceQnet based on the net fluxes
527        (SItflux) that enter the ocean+ice system rather than QNET
528        and EMPMR. Works best in real fresh water.
529      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
530        out of the diagnotics bloc, and stored in global arrays.
531    
532    checkpoint63o (2012/06/29)
533    o vertical mixing schemes:
534      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
535      - replace computation of density (in Function STATE1, opps_calc.F) by a call
536        to S/R FIND_RHO_SCALAR
537      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
538        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
539        affects output (vermix.ggl90) at truncation level.
540    o testreport:
541      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
542        (nSx,nSy) for the number of threads (from eedata.mth)
543    o model/src:
544      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
545        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
546    o verification/tutorial_tracer_adjsens/
547      - compile with ALLOW_CG2D_NSA
548      - run with nonlinFreeSurf=3
549      - update reference output_adm.txt
550    o tools/genmake2:
551      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
552        refine usePROFILES switching off (only when NetCDF is not available).
553    o verification (atmospheric set-up):
554      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
555    o pkg/profiles : refine profiles and files handling.
556    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
557    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
558      - changes to use model/src/the_main_loop.F rather than the ecco version
559        in ecco type adjoint runs.
560    o model/src:
561      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
562      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
563      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
564    o model/src:
565      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
566        update output of test experiment bottom_ctrl_5x5.
567    o pkg/generic_advdiff:
568      - implement vertical bi-harmonic diffusion (for now, only for T & S and
569        only explicitly).
570    o verification/bottom_ctrl_5x5/
571      update reference output (results changed quite some time ago,
572      not sure when; but new reference results look ok in terms of grdchk)
573    o verification/1D_ocean_ice_column/
574      For verification purposes, the exact adjoint rather than an approx.
575      should be used (e.g., to comare against F.D. or TLM).
576      removed autodiff_inadmode*_ad.F routines in code_ad/
577      Update results/ accordingly.
578    o pkg/cal:
579      - change cal_getdate.F so that output date is function of input time only
580        (less ambiguous, not mixed up with input iteration number).
581      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
582    o pkg/diagnostics:
583      - implement calendarDumps also for stats-diags
584      - implement calendarDumps also for snap-shot output (negative freq)
585      - for now, ignores calendarDumps if non-zero phase-lag.
586    
587    checkpoint63n (2012/06/04)
588    o model/src:
589      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
590        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
591      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
592        similar to calc_r_star.F); update results of experiment internal_wave and
593        tutorial_global_oce_in_p (affected @ truncation level).
594    o pkg/shelfice:
595      - add parameterisation of advective-diffusive flux into the ice shelf
596        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
597      - simply eps3/3a computation
598    o eesupp:
599     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
600       between tiles, just fill-in edges assuming locally periodic subdomain) and
601       add corresponding exchange subroutines (EXCH0);
602     - new CG-solver version (_EX0) for disconnected-tiles special case.
603    o model/src (CG-solvers):
604     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
605       (similar final residual output and max-Iter number as with standard version);
606     - allows to store and use lowest-residual solution (standard & _SR versions);
607     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
608     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
609    o eesup/src:
610     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
611       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
612    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
613    
614    checkpoint63m (2012/04/27)
615    o pkg/shelfice:
616     - account for partical cells in surface level below ice-shelf for hydrostatic
617       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
618    o ad test experiments:
619     - update and rename to "ad_optfile.local" local AD-optfile specific to a
620       particular adjoint verification experiment (in verification/*/code_ad/)
621    o pkg/seaice & pkg/exf:
622     - Part two of ECCO-CLIVAR code merges.
623       Completes merge of seaice area relax. code.
624       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
625       to be set in EXF_OPTIONS.h since this pkg controls its I/O
626       (and avoids second CPP option in SEAICE_OPTIONS.h)
627     - change default value of costIceStart & costIceEnd to a valid date.
628     - add snowPrecip to HSNOW in seaice_growth
629    o pkg/ptracers:
630     - move ptracers summary and setup check into separated S/R ; add a check for
631       valid PTRACERS_Iter0 value (error+stop or just warning).
632    o pkg/cal (+ pkg/ecco):
633     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
634       as input; and for AD, unless both are not differentiable (e.g., k index)).
635    o model/src:
636     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
637       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
638       temporary set to usingZCoords value (to be changed to F when using shelfice).
639     - hydrostatic pressure: implement partial cell near the surface also for
640       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
641       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
642    o pkg/ctrl/ctrl_init.F:
643     - add a formal parameter to s/r ctrl_init_rec to print
644       xx_$(ctrl_valiable)_file for easier debugging
645     - move call of cal_* routines into the if-block where they are really
646       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
647       to specify a startdate
648    o pkg/seaice:
649     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
650       global_ocean.cs32x15/code versions).
651     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
652       verification experiment global_ocean.cs32x15.seaice and update results.
653    o pkg/exf:
654     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
655       (according to useExfYearlyFields).
656    o pkg/cal:
657     - move calendar setting & summary (previously in cal_readparams.F) into new
658       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
659       length of the simulation is set (after SET_PARMS call); This is an attempt
660       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
661     - For safety: keep a record of pkg/cal parameter settings status
662               to allow to STOP if one pkg/cal S/R is called too early.
663     - add a stop in all basic pkg/cal subroutines if called before setting is done.
664     - modify cal_getdate.F: stop when nothing was returned;
665       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
666       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
667    
668    checkpoint63l (2012/04/04)
669    o pkg/bbl:
670      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
671        update global_with_exf output.yearly.txt file.
672    o pkg/cal:
673      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
674      - remove 2 unsused and very short (1 line only) functions ;
675      - remove unsused subroutines from AD-Diff list.
676    o model/src:
677      - start to implement clean wait to stop in initialization S/R (config_check.F,
678         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
679    o folowing PRINT_MESSAGE changes:
680      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
681    o pkg/bbl:
682      - modification so it can work with z*
683      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
684      - global_with_exf/input.yearly verification; changes output.yearly.txt
685    o eesupp/src:
686      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
687        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
688      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
689        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
690      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
691      - when using MPI, always set usingMPI=T ; set default accordingly and stop
692        if not consistent.
693      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
694        argument is zero (in case called within single-thread section).
695    o pkg/fizhi:
696        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
697        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
698    o pkg/exch2:
699      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
700        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
701      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
702        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
703        with bad ones coming from a not-yet-updated halo.
704        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
705    o pkg/frazil:
706        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
707        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
708    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
709    o verification/lab_sea
710      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
711      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
712      * nTimeSteps 3 -> 4
713      * changed reference output accordingly
714    o pkg/ctrl:
715      * fix ctrl_get_gen for xx_sst, xx_sss
716    o pkg/fizhi:
717      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
718        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
719      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
720        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
721        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
722    o pkg/gmredi:
723      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
724    o pkg/fizhi:
725      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
726        (old)aces open64 tuv test.
727    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
728    o pkg/mom_vecinv:
729      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
730        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
731        with non-lin free-surf).
732    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
733      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
734      some compilers (gfortran 4.6.0 on MacOS)
735    o momentum:
736      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
737        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
738        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
739    
740    checkpoint63k (2012/03/17)
741    o model/src:
742       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
743         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
744       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
745         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
746    o model/src: solve_*diagonal.F
747       - replace division with multiplication by inverse (similar to original version)
748         update output of AD exp. global_ocean.90x40x15.
749       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
750         to enable the use of the vectorized & differentiable solve_tridiagonal.F
751       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
752         vertical advection (to get solve_tridiagonal tested in AD mode).
753    o pkg/seaice: ECCO-CLIVAR merge:
754      1. seaice AREA relaxation
755         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
756         * runtime flag: SEAICE_tauAreaObsRelax
757      2. modified global mean cost imbalance code: CPP option
758          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
759    o another iteration on solve_*diagonal.F
760       Make choices independent of AUTODIFF
761       Default will be the adjoinable vectorized version.
762       Alternative choices are:
763       * non-adjoinable original version with low memory footprint:
764         #define SOLVE_DIAGONAL_LOWMEMORY
765       * still adjoinable but does not vectorize (k as inner-most loop):
766         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
767    o testreport
768     - add option to use a home made wrapper around "make"
769     - remove MITGCM_IEEE env. variable (no longer active)
770    o pkg/shelfice
771     - improve computation of friction velocity for velocity dependent
772       exchange coefficients: include velocities into SHELFICEBoundaryLayer
773       block to average velocities vertically
774     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
775    o Modify diagonal solvers, now three versions (upon request):
776      #ifndef SOLVE_DIAGONAL_AUTODIFF
777        1. default version (dating back a while ago)
778      #else /* def SOLVE_DIAGONAL_AUTODIFF */
779      # ifdef SOLVE_DIAGONAL_KINNER
780        2. adjoinable version with k-innermost loop (G. Forget)
781      # else
782        3. adjoinable vectorized version of 2.
783      # endif
784      #endif /* SOLVE_DIAGONAL_AUTODIFF */
785      All flags are currently set within routines, but could/should be moved to CPP-options.
786      Array bounds for 1. are as before, for 2.,3. cover the entire domain
787      (could be changed for 1. too).
788    o verification/lab_sea (fwd):
789      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
790        use 7 categories (except hb87), new solve4temp params (except salt_plume),
791        constant salinity (=4) or variable salinity (salt_plume) done through
792        SItracer.
793    o pkg/seaice:
794      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
795      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
796         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
797        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
798        SEAICE_freeze got retired) but already better than previously with
799        SEAICE_freeze=123456.7 deg.C;
800      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
801        (safer multi-threaded setting); always set SEAICEuseEVP;
802      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
803        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
804        stop if multiple specifications for the same coeff; make sure default
805        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
806    o pkg/obcs:
807      - allow to switch to upwind 1rst order advection scheme for the advective
808        flux computation at the open-boundary; disabled for adjoint built.
809    o pkg/ptracers:
810      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
811      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
812      - add parameter to decide when to start a tracer; use internal flag to
813        know which tracer to step-forward; switch this internal flag at the top
814        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
815        for adjoint built.
816    o pkg/seaice:
817      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
818      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
819      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
820    o pkg/ecco:
821      - fix writing of output file DiagnosCost_ClimSalt/Theta
822        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
823    o pkg/seaice:
824      - add missing initialisation of COR_ICE array in dynsolver.F
825      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
826        compiled either way, and is tested in all exps (multidim was only tested
827        in lab_sea ad before).
828      - cosmetic change to prepare for future addition of ITD. no change to results.
829        no defaults change.
830      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
831      - by lack of adequate verification experiments, I further used custom versions
832        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
833        should be correct.
834      - avoid recomputations in ad.
835    o array initialisation in adjoint mode:
836      1) pkg/mom_common/mom_calc_ke.F:
837        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
838        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
839        part this initialisation is gone, resulting in Floating Point Exception
840        (caught by open64 compiler with debug option).
841      2) model/src/convective_weights.F
842        set output convectCount over the full array range (instead of doing
843        an update): this fix a similar issue when called within recomputation (adjoint)
844        which could by-pass the initialisation (normally done in the caller S/R).
845    o pkg/seaice:
846      - final version of turbulent flux params, as agreed at MIT ice meet:
847           SEAICE_mcPheePiston (default is ~ 0.000875)
848           SEAICE_mcPheeTaper (default is 0.)
849           SEAICE_frazilFrac (defualt is 1.)
850           SEAICE_mcPheeStepFunc (default is false)
851      - changes results at trunction error level
852      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
853    o added pkg/frazil:
854      - see frazil_description.tex for details
855      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
856    o pkg/shelfice/shelfice_thermodynamics.F
857      - fix exponents for velocity dependent exchange coefficients: change
858        from 2/3(=0) to 0.66666666666666667
859      - move computation of velocity dependent exchange coefficients into
860        separate loop, so that it applies to both thermodynamics
861      - move some divisions by constants out of loops
862    
863    checkpoint63j (2012/02/16)
864    o pkg/seaice:
865      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
866      - SItracer:  added run time params, and allow coupling to ocn salinity.
867    o pkg/seaice: remove (almost) all divisions by constants within loops
868      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
869      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
870      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
871      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
872    o pkg/seaice :
873      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
874        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
875      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
876      - add permanent SItflux diag that corresponds to TFLUX but includes
877        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
878      - allow activation/testing of a fix for suspected missing term in
879        ocn-ice heat budget (to be confirmed). To test this, you want to
880        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
881        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
882      - no change in results, fwd or ad.
883    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
884      - switch to variable freezing point.
885           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
886      - bug fix : the sublimation term that was missing is now activated.
887           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
888      - bug fix : flooding sign term for SIsal0.NE.0.
889           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
890    o pkg/seaice:
891      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
892        is now the default, and the old default constant freezing point is recovered
893        with SEAICE_tempFrz0    = -1.96,
894             SEAICE_dTempFrz_dS = 0.,
895      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
896      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
897      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
898        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
899      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
900        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
901      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
902        seaice_growth r149 for legacy branch (no results change).
903      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
904        from I. Fenty).
905      - results did not change except for global_ocean.cs32x15, mostly due to the
906        switch to variable freezing point (see above item for detail).
907    o pkg/thsice:
908      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
909        seawater freezing in thsice_calc_thickn (not used).
910    o pkg/seaice: turbulent flux term specification via run time params.
911      - replace CPP switches with run time switches to facilitate testing
912      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
913                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
914      - added runtime parameter : SEAICEturbFluxFormula
915      - move Mcphee constants to SEAICE_PARAMS.h
916      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
917                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
918                 remove seaice_summary call (moved to seaice_init_fixed)
919      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
920        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
921      - seaice_summary.F : add missing report of read turbulent flux term set up
922                           and SITRACER.
923      - seaice_check.F : check range; inform and stop if retired CPPs are used
924                         (incl. SEAICE_AGE).
925      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
926             CPP switch, same computation as before for the different options.
927      - change results at the truncation level.
928    o pkg/seaice:
929      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
930        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
931        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
932      - update verification/*/input*/data.seaice:
933        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
934        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
935        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
936        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
937    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
938      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
939        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
940        difference in results only due to machine truncation.
941      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
942        MaykutPolySatVap; keep MIN_LWDOWN.
943      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
944      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
945        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
946    o pkg/salt_plume:
947      - isolate saltPlumeFlux array exch into a specific S/R called from
948        do_oceanic_phys.F
949      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
950    o verification:
951      - move untested set-up to MITgcm_contrib/verification_other.
952    o pkg/seaice:
953      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
954    o pkg/seaice:
955      - seaice_solve4temp.F (keeping results unchanged):
956        * add 2 future run-time params to select which saturation vapor pressure
957          formula is used and how post-iteration fluxes are set.
958          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
959        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
960          the linearized expression to stay consistent with tsurf finding.
961      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
962        can be < 0.
963    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
964      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
965        conductive heat flux F_c , and add it explicitly when updating tsurf as
966        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
967        so that now F_ia has a consistent meaning through the entire routine.
968        This causes differences at truncation level: update output of fwd exp.
969        global_ocean.cs32x15.seaice.
970    o pkg/seaice:
971      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
972        of arrays, sign/direction of fluxes; no effect on results.
973      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
974        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
975        note: this should have been done before changing celsius2K default.
976      - to keep results unchanged, add back old value of celsius2K in verification
977        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
978      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
979        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
980        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
981        freezing temp is consistent with value in seaice_growth.F ; this causes
982        differences at machine truncation level: update lab_sea AD output (3/4).
983    o pkg/seaice:
984      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
985        and climsst/sss even when using seaice (to prevent calculation that might
986        use SST on land); does not affect any verification exp.
987      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
988        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
989    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
990      over land (non-legacy code)
991    o vectorize salt_plume package:
992      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
993      - this code computes plumebk everywhere (also over land), thus requires
994        code to avoid divisions by zero and catch the case of kLev=Nr.
995      - efficiency of salt_plume_frac is still sub-optimal
996    o tools (genmake2):
997      - fix makefile NAME specification (option: -makefile NAME) by adding
998        "-f $MAKEFILE" in few places where it was missing including makedepend
999        command (contribution from Paul).
1000    
1001    checkpoint63i (2012/01/24)
1002    o model/src:
1003      - add factorized versions of some EOS code to find_rho.F,
1004        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
1005    o model/src:
1006      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
1007      - change default celsius2K from 273.16 to 273.15
1008      - to keep results unchanged, add back old value of celsius2K in verification
1009        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
1010         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
1011    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
1012      to make TAF generate vectorizable code
1013    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
1014       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
1015       have flags that do this more efficiently.
1016    o pkg/diagnostics/diagstats_calc.F
1017      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
1018    o pkg/obcs (with exch2):
1019      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
1020        and remove code (in obcs_readparms.F) which was based on EXCH of indices
1021        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
1022    o pkg/exf and seaice exp:
1023      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
1024        so that switching off area & heff advection flags does not affect results.
1025      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
1026      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
1027        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
1028        results of verification experiments: 1D_ocean_ice_column(fwd),
1029        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
1030        and offline_exf_seaice (all 4).
1031    o pkg/seaice:
1032      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
1033        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
1034      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
1035        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
1036        not multi-dim advection;
1037      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
1038        SHORTWAVE_HEATING #undef.
1039    o optim: make Makefile more robust (?)
1040    o pkg/obcs:
1041      * fix treatment of obcs_read_pickup for TAF
1042    o pkg/shelfice:
1043      * add missing initialisation of num_shifwflx
1044      * new adjoint verification exp. for isomip
1045      * change Prandtl and Schmidt numbers from generic formulations
1046        (in terms of model diffus. and visc.) to separate runtime
1047        parameters, with Holland and Jenkins (1999) default values.
1048    o pkg/exf (interpolation):
1049      - extended input field (2 rows) near the N & S poles:
1050        * fill in with the symetric value (when even Nb of data in longitude)
1051        * add average value at the poles only for scalar quantities ; for vector
1052          component interpolation, skip the averaging and keep duplicated values,
1053          unless the 2 components have same location (uvInterp=T) in which case
1054          interpolate the 2 components together using S/R EXF_INTERP_UV.
1055      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
1056        together: this allows to account properly for local orientation when
1057        averaging at N & S pole.
1058      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
1059        exf-interpolation near N & S poles. Undef by default.
1060      - add debug check/print on 1rst iter if debugLevel >=2.
1061    o pkg/exf:
1062      - change masking flags definition (no longer "parameter"), put them in
1063        common block and set them in S/R EXF_INIT_FIXED.
1064      - change recognized masking flag from s,u,v to c,w,s since the mask
1065        to use (maskC,W,S) depends on position on model grid and has little to
1066        do with scalar/vector difference; fix masking if using P-coordinates.
1067      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
1068        and update results of exp. global_with_exf (x2).
1069      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
1070    o pkg/obcs
1071      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
1072    o pkg/exf (interpolation):
1073      - assume periodicity in X only if input field cover full longitude range.
1074      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
1075        and should vectorise).
1076      - fix input lat of the 2 added row (in case we provide N.pole data).
1077    
1078    checkpoint63h (2011/12/30)
1079    o pkg/seaice:
1080      - change declaration of UVM from _RL to _RS in order to get B-grid
1081        uIce,vIce monitor when _RS = real*4
1082    o pkg/offline:
1083      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
1084      - compute vertical velocity if not read from file (switch on exactConserv
1085        & staggerTimeStep);
1086      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
1087    o verification:
1088      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
1089        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
1090        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
1091      - update output of exp. global_ocean.cs32x15.viscA4 after changing
1092        grid-file angles (used here for coriolis-3d);
1093      - remove (or gzip) few files not needed to run fizhi-cs experiments.
1094    o pkg/exf (vector interpolation):
1095      - rotate vector component toward local grid-axis orientation using grid-angles
1096        (stored in GRID.h) instead of locally computed rotation angle; keep old code
1097        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
1098    o pkg/seaice:
1099      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
1100        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
1101    o pkg/PKG_OPTIONS.h files:
1102      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
1103        outside of the #ifdef ALLOW_THISPKG / #endif block.
1104      - update verification/*/code/PKG_OPTIONS.h files.
1105    o add a verification experiment (offline_exf_seaice/input.seaice) that test
1106      the B-grid LSOR solver
1107    o pkg/seaice: sort out emissivity and long wave radiation step 2:
1108      - add emissivity for snow and ice as new run-time parameters
1109        (unfortunately) that default to the corresponding exf values; this
1110        changes results in most verification experiments so that for backward
1111        compatibility these parameter have to be set explicitly to inconsistent
1112        values (ugly);
1113      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
1114        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
1115        until we agree how to handle this bug properly
1116    o pkg/exf (interpolation):
1117      - add a set of run-time param ({inputfield}_interpMethod), one for
1118        each interpolated input field, to select the interpolation method
1119        with a value of zero switching off the interpolation;
1120      - print interpolation parameters to standard output;
1121      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
1122        (to use instead runoff_interpMethod=0 in data.exf).
1123      - simplify default setting of interpolation parameters (for all fields,
1124        set position to match model grid cell-center position, leading to trivial
1125        interpolation in case of regular Lat-Lon grid) and fix for the case of
1126        non-uniform delY.
1127    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
1128       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
1129       this factor is absolutely required, because the lw exitance (= out-going
1130       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
1131       where the reflectivity rho = 1-emissivity for conservation reasons. Once
1132       this is established, we can remove the CPP-Flag (if we want to).
1133    o pkg/seaice:
1134      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
1135        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
1136      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
1137        what the name implies (and not emissivity*BoltzmannConstant), this means
1138        the old default value of 5.5e-8 now means
1139        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
1140        S/R exf_readparms
1141      - FV-discretization of the B-grid LSOR solver, turn on with
1142        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
1143        of the calling routine dynsolver, so that B and C-grid code look a
1144        little more alike.
1145      - fix index bugs in ostres.F (B-grid code)
1146    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
1147    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
1148      default for SEAICE_emissivity, if useEXF; requires setting a wrong
1149      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
1150      backward compatiblity
1151    o model/src: use sigmaR in calc_ivdc
1152    
1153    checkpoint63g (2011/12/16)
1154    o pkg/seaice/seaice_growth.F:
1155      fix heat conservation of the coupled ocean-seaice system.
1156      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
1157      solid vs liquid water treatment is resolved via QNET.
1158    o pkg/seaice/seaice_growth.F:
1159      add missing term for sublimation in saltFlux, which was breaking conservation.
1160    o pkg/seaice/seaice_model.F:
1161      Remove this patholigical case treatment in evolution branch,
1162      where it is un-necessary and breaks conservation.
1163      Update global_ocean.cs32x15/results accordingly for
1164      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
1165    o model/src:
1166      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
1167      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
1168    o pkg/obcs:
1169      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
1170      tendency for temperature and salinity that is then applied to update
1171      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
1172      horizontal advection and diffusion contributions on the boundary (in
1173      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
1174      removing the mask in S/R timestep_tracer. The advantage of this approach is
1175      that the updated tracer values include contributions from the surface
1176      forcing and vertical diffusion.
1177      This modification changes exp4.stevens because of vertical diffusion.
1178    o model/src:
1179      change non-curvilinear grid setting to also work with exch2 + blank tiles:
1180      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
1181        face dimensions.
1182      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
1183        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
1184        and INI_SPHERICAL_POLAR_GRID.
1185      change test-experiment global_ocean.90x40x15:
1186      - split the domain in many more tiles (9x4 tiles of 10x10 each);
1187      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
1188      - update results of both test (std & dwnslp).
1189    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
1190       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
1191    o model/src:
1192      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
1193        and fix initialisation when using sigma-coords.
1194    o model/src:
1195     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
1196       to their current value at the beginning of forward_step.F": add a new run-time
1197       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
1198     - set doResetHFactors=T in the following test exp:
1199        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
1200        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
1201        and tutorial_global_oce_in_p (nonLinFS in p)
1202    o pkg/ecco
1203      - added IES cost term
1204    o verification/advect_xz
1205      - scale down the depth by 1/100 (from 200 km to just 2.km)
1206      - add secondary test using divergent flow, r-star and implicit vertical advection.
1207      - add note (check_conserve_TS.txt) and matlab script to check global
1208        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
1209    o pkg/rbcs:
1210      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
1211    o pkg/obcs (Stevens BCs):
1212      - fix various problems in the phase speed computations of the Stevens
1213        boundary conditions:
1214        - sign error for western and southern boundaries,
1215        - time tendencies were underestimated by factor of dTracerLev and some just
1216          zero (for multidim advection schemes) -> now estimate time tendencies
1217          from difference between previous (n) time level and the one before (n-1);
1218          this requires storing a field per tracer per boundary, also in the pickup
1219          files.
1220        - replace deltaTmom in cflMer/Zon computation with dTracerLev
1221        - set default phase velocity to cflMer/Zon
1222      - update verification experiment exp4.stevens
1223    o pkg/generic_advdiff (implicit_r):
1224      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
1225        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
1226      - fix implicit vertical diffusion or advection with NonLin FreeSurf
1227        (was using current recip_hFacC instead of future recip_hFacC): set future
1228        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
1229        solver S/R ;
1230      - fill diagnostics of vertical advective fluxes (computed from tendency)
1231        when using implicit vert. advection;
1232      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
1233         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
1234         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
1235         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
1236    o pkg/diagnostics:
1237      - add diags for T & S tendency which goes through Adams-Bashforth.
1238    
1239    checkpoint63f (2011/11/30)
1240    o pkg/obcs/obcs_calc_stevens.F:
1241      - join some loops to reduce number of if-statements
1242      - fix a bug in code for northern and southern boundaries.
1243    o pkg/seaice/seaice_init_varia.F
1244      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
1245        caused zero ice-velocities for the B-grid code
1246    o pkg/seaice/seaice_init_fixed.F
1247      - fix a bug in the initialisation of the second metric terms
1248        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
1249      - this affects all seaice configurations with useCurviLinearGrid = .true.
1250        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
1251        = .true. (default)
1252      - the only verification experiment affected is global_ocean.cs32x15:
1253        icedyn, seaice, and seaice_dynmix (AD)
1254    o pkg/thsice/thsice_diagnostics_state.F
1255      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
1256        not contain garbage that can lead to surprises in diagstats_calc.F
1257    o model/src:
1258      - move bi,bj loops inside INTEGR_CONTINUITY ;
1259      - call INTEGR_CONTINUITY directly from forward_step.F
1260        (previously called from momentum_correction_step.F)
1261      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
1262        forward_step.F and pkg/ecco/the_main_loop.F
1263    o model/src/do_oceanic_phys.F:
1264      - reset addMass to zero only if useICEFRONT ;
1265      - separated k-loop for rhoInSitu calculation ;
1266      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
1267        and at constant T,S (= WdRHOdP);
1268      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
1269        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
1270        transport of locally-referenced potential density);
1271        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
1272    o gluemnc:
1273      - replace ncrcat with ncks when adding variables to *.glob.nc
1274      - change the way variables without record dimensions are handled so that
1275        files that have variables with and without record variables can be glued:
1276        add a record dimension with a new unique name to be able to differentiate
1277        between variable with and without a-prior record dimensions. Remove
1278        this record dimension before adding the variable to the *.glob.nc file.
1279        This procedure automatically works also for grid.*.nc files that do not
1280        have any record dimension.
1281    o verification/cpl_aim+ocn:
1282      - generate new reference output on baudelaire (gfortran, mpich2) (previously
1283        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
1284    o pkg/obcs/obcs_calc_stevens.F:
1285      - add code for northern and southern boundaries.
1286      - reorder some loops to save some operations and so that drFBar can be scalar
1287    o model/src:
1288      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
1289        truncation) and add diagnostics for Adams-Bashforth tendency increment.
1290      - update test-exp. AD output:
1291        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
1292      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
1293        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
1294        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
1295        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
1296        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
1297        tutorial_plume_on_slope.
1298    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
1299      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
1300      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
1301      does not even come with an F77 compiler anymore, this should not be
1302      a limitation
1303    
1304    checkpoint63e (2011/11/06)
1305    o pkg/seaice adjoint of LSR:
1306      - substantially rework STORE dirs.
1307      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
1308        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
1309        and only perform SOLV_MAX_FIXED adjoint iters.
1310        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
1311        always goes to same record, meaning that the last forward field will be
1312        the one used in the adjoint - an approximation.
1313      - now produces non-zero LSR-related gradients, and acceptable gradients for
1314        An's zonal (x-z) test case (to be checked in)
1315      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
1316        (but these are screwed up by the thermodynamics in the first place);
1317        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
1318        output_adm.txt also reflects changes to seaice_lsr
1319      - global_ocean.cs32x15:
1320        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
1321          (output_adm.seaice.txt was updated)
1322        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
1323          (output_adm.seaice_dynmix.txt)
1324    o test-exp. exp4+stevens:
1325      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
1326    o pkg/seaice (lsr solver):
1327      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
1328        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
1329      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
1330      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
1331        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
1332      - compute (with new S/R) and print initial (+ free-driff sol. if available)
1333        and final residual of linearised system.
1334    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
1335      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
1336    o pkg/obcs: Stevens BCs (still only for east and west)
1337      - fix Stevens BCs by using intermediate velocities of previous
1338        time step as "baroclinic" contribution rather velocity of one grid cell
1339        inside the boundaries; more consistent but makes the entire treatment
1340        more complicated, requires new pickup files and two new S/Rs:
1341        obcs_copy_uv_n and obcs_save_uv_n
1342        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
1343        (undefined by default)
1344      - silently move computation of some grid factors into separate loops to
1345        save some recomputations
1346      - add a hack for non-linear free surface
1347      - add a verification experiment to exp4 that tests this code
1348    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
1349    
1350    checkpoint63d (2011/10/25)
1351    o pkg/obcs + seaice-dynamics:
1352      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
1353        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
1354        values (consistent with an implicit method).
1355      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
1356        return to older implementation (same results as before); note that none of
1357        the "experimental" OBCS_SEAICE options are implemented in the new version.
1358      - switch test exp. seaice_obcs to use new version (update output).
1359    o pkg/seaice:
1360      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
1361      - add parenthesis in Water-Ice drag calculations (evp & lsr);
1362      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
1363        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
1364      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
1365        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
1366    o pkg/layers:
1367      - Include potential density as new coordinate (Thanks to David Munday)
1368    o pkg/dic:
1369      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
1370        carbonate computation/output to CALC_PCO2_APPROX
1371    o pkg/generic_advdiff
1372      - make TAF generate code that vectorizes:
1373        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
1374    o model/src:
1375      - improve vectorization also for adjoint code of
1376        solve_tridiagonal and solve_pentadiagonal. As this requires up to
1377        5 new 3D-fields, this code is only turned on for the combination of
1378        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
1379        for singular matrix check (only for TARGET_NEC_SX).
1380      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
1381        ALLOW_AUTODIFF. This flag now needs to be set outside of
1382        solve_tri/pentadiagonal.F
1383    o pkg/exf:
1384      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
1385        optional namelist EXF_NML_OBCS).
1386      - add many debug-print (to trace down where pkg/cal error msg comes from)
1387    o pkg/mom_vecinv/mom_vi_hdissip.F
1388      - rearrange loops so that vectorization is improved and in particular
1389        the adjoint routine vectorizes. The code is a little longer now, but I
1390        think easier to read.
1391        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
1392    o pkg/seaice:
1393      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
1394    o pkg/exch2:
1395      - alternative code (without tile x tile matrix) for cumulated (global) sum;
1396        used as default; keep using matrix version in adjustment.cs-32x32x1.
1397    o tools/build_options:
1398      - after merging some MPI and/or multi-threads specific optfiles so that
1399        the modified default optfile support both built (using genmake2 -mpi
1400        for the MPI built, using genmake2 -omp for OpenMP built),
1401        move now obsolete optfiles to tools/build_options/unsupported/
1402       (add copy of email sent to support list in doc/optfiles_changes.txt)
1403    
1404    checkpoint63c (2011/09/28)
1405    o pkg/ebm:
1406      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
1407        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
1408    o pkg/seaice (SItracer pickup)
1409    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
1410      To be done:
1411      - thorough testing of missing fields in S/R seaice_read_pickup
1412      - thorough matching between generic tracers and specific fields used
1413        (e.g. volume-weighted age, area-weighted age, salinity, ...)
1414    o pkg/grdchk:
1415      - all procs calculate and print finite-difference gradient (for testreport)
1416      - change description output used by testreport;
1417      - AD testing: also compare and report Finite-difference gradient;
1418        => update all output_adm*.txt
1419    o test exp. global_ocean_ebm:
1420      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
1421        and turn on exactConserve; update (fwd) output.
1422    o pkg/seaice (LSR):
1423      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
1424      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
1425        * identical results with non-CS topology (but save up to half of EXCH calls)
1426        * no much changes in cs-32 verification tests since no ice at face edges
1427         (differences due to convergence criteria, since nb of iterations changed)
1428        * expect some differences on lat-lon-cap grid.
1429        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
1430    o pkg/exch2:
1431      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
1432        many tiles); until alternative coding is added, just add a stop.
1433    o pkg/kpp:
1434      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
1435        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
1436    o optfiles:
1437      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
1438        into corresponding standard one, which now support different build:
1439        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
1440      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
1441    o pkg/obcs (seaice):
1442      - add missing EXCH for uIce,vIce after applying OBCS;
1443      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
1444        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
1445        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
1446      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
1447      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
1448        and eedata.mth for MPI and mutlti-threaded testing.
1449    o pkg/flt:
1450      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
1451      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
1452      - fix pickup and trajectories + profiles output with multi-threads;
1453      - add parameter to select group of fields to write along trajectory and
1454        profile (default unchanged);
1455      - only call PORT_RAND* function when flt_noise <> 0;
1456      - add multi-threaded test for verification exp. flt_example.
1457    o eesupp/src:
1458      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
1459      - USE_OMP_THREADING: check that number of threads (from eedata) matches
1460        actual number (from env.var. setting).
1461    o pkg/ebm:
1462      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
1463      - add multi-threaded test for verification exp. global_ocean_ebm
1464    
1465    checkpoint63b (2011/08/29)
1466    o pkg/ebm:
1467      - fix sign of runoff;
1468      - update directly forcing fields (Qnet,EmPmR) to use standard
1469        external_forcing_surf.F (remove ebm_forcing_surf.F);
1470      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
1471      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
1472        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
1473      - update global_ocean_ebm parameters file data and update output (fwd+ad).
1474    o verification/matrix_example:
1475      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
1476        MPI and mutlti-threaded testing.
1477    o pkg/matrix:
1478      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
1479      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
1480      - fix for multi-threaded (remove DATA statement);
1481      - use standard DIFFERENT_MULTIPLE function;
1482      - add MATRIX_OPTIONS.h
1483    o verification/matrix_example:
1484       To allow to split the domain in several tiles, change the domain size
1485        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
1486        Western side) of land points.
1487    o (*_)write_pickup:
1488      - fix few bugs in mypackage_read/write_pickup.F
1489      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
1490        array of length 1 (was caught by compiler syntax-check).
1491    o pkg/diagnostics (velocity potential solver):
1492      - fix initialisation of main diagonal matrix (for overlap values)
1493    o tools/build_options:
1494      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
1495        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
1496      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
1497        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
1498        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
1499        and use "-devel" testreport option for standard testing on baudelaire.
1500    o pkg/grdchk:
1501      - Assume that all gradient-check position are within the same tile
1502        corresponding to global indices (iGloTile,jGloTile) and that
1503        positions (i,j indices or nbeg) are local to this tile;
1504      - set tile local-indices and proc. number according to tile global-indices;
1505      - remove grdchkwhichproc from namelist (retired param);
1506      - send adjoint gradient to all procs so that all procs print it to STDOUT;
1507      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
1508    o adding package bbl (Bottom Boundary Layer)
1509      description in MITgcm/pkg/bbl/bbl_description.tex
1510      example/test experiment in MITgcm_contrib/bbl
1511    o adjoint verifications
1512      - changed 5 experiments to multi-tiles
1513        * global_ocean.90x40x15
1514        * obcs_ctrl
1515        * offline_exf_seaice
1516        * tutorial_dic_adjoffline
1517        * tutorial_tracer_adjsens
1518        changed reference output for those that crossed tile boundaries
1519        (changed choices of gradient check positions)
1520      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
1521      - temporary bug fix in grdchk_loc.F for obcs
1522    o genmake2 & testreport
1523      - add target "obj" (just for OBJFILES files) to Makefile;
1524      - add option to specify FEXTRAFLAGS on command line.
1525    o pkg/mypackage:
1526      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
1527    
1528    checkpoint63a (2011/08/02)
1529    o pkg/diagnostics (velocity potential):
1530      - fix velocity-potential calculation when using OBCS: balance net inflow
1531        at each level (new S/R OBCS_DIAG_BALANCE).
1532      - fix some of the problems with OBCS in stream-function calculation.
1533    o pkg/exf/exf_readparms.F
1534      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
1535        EXF_NML_OBCS) more consistent, so that you need not have these lists
1536        in data.exf when they are not used.
1537    o optim/optim_readdata.F:
1538      - add some output about obcs variables that might help debugging
1539      - add a check about nvarlength
1540    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
1541    o pkg/diagnostics (velocity potential):
1542      - fix mask for OBCS (still problems in stream-function with OBCS);
1543      - add specific parameter (default = main code CG2D params) for solver;
1544      - in case of poor convergence, use solution corresponding to lowest residual.
1545    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
1546      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
1547      and should be avoided where possible.
1548    o model/src (rStar):
1549      - include r* effect on reference-state (PhiRef) in totPhiHyd
1550        (so that it's really the potential anomaly at the cell center);
1551        affect solution only if z* with full pressure in EOS.
1552      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
1553        update output (because of z* in totPhiHyd and viscA4 changes);
1554      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
1555        @ constant r) until interpolation at constant r is implemented.
1556    o pkg/diagnostics
1557      - fix RCENTER diagnostics in case cell center is not at interface middle
1558    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
1559      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
1560      that THETA and SALT are "conservative temperature" and "absolute
1561      salinity"
1562    o pkg/ctrl
1563      - fix computation of endrec in s/r ctrl_init_rec
1564      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
1565    o pkg/seaice/seaice_growth.F
1566      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
1567        remove then obsolete STORE directives
1568      - fix STORE directives for tice and tices, so that only the
1569        appropriate part of the fields are stored (and not the entire
1570        field); update global_ocean.cs32x15.seaice AD output.
1571      - cosmetic changes: adjust CPP flags and indentation for better
1572        legibilty
1573    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
1574      Chris Wilson)
1575    o pkg/gmredi:
1576       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
1577       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
1578    
1579    checkpoint63  (2011/07/11)
1580    o pkg/exch2:
1581     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
1582     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
1583       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
1584       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
1585    o pkg/diagnostics:
1586     - deal with pairs of post-processed diags which are computed together; in
1587       particular, re-order list of diags within 1 file to save 2nd computation.
1588     - add S/R to compute velocity stream-function (called after velocity-potential
1589       calculation) from divergence free transport -> new diagnostics "PsiVEL".
1590     - add parameter to select grid-point location where PsiVEL == 0.
1591    o eesupp/src:
1592       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
1593       (specific S/R needed with exch2 topology - for now, just print an error msg)
1594    o pkg/shelfice
1595     - Implement friction velocity-dependent transfer coefficients following
1596       Holland and Jenkins, JPO, 1999
1597       Original code by M. Losch with small modifs.
1598       Enable with CPP option SHI_ALLOW_GAMMAFRICT
1599       and runtime flag SHELFICEuseGammaFrict
1600    o verification lab_sea & global_ocean.cs32x15:
1601     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
1602       does not miss some dependencies (but is slower) and also works with many files
1603       (default makedepend limitation for AD built).
1604     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
1605    o pkg/diagnostics:
1606     - add run-time parameter "useMissingValue" (def=False) to fill land-point
1607        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
1608       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
1609     - Extend the use of "missing_value" setting from data.diagnostics for the case
1610       of counter-diagnostics (where fraction-weight is zero). This applies both to
1611       MNC and MDS output files.
1612    o pkg/seaice/seaice_growth.F:
1613      - add 'a priori' cap of latent heat flux based on actual mass considerations
1614        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
1615        non-legacy seaice_solve4temp.
1616      - add diagnostic of the residual sublimation freshwater flux (the freshwater
1617        flux taken from the ocean if the total actual latent heat fluxes exceed
1618        the maximum)
1619      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
1620       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
1621      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
1622       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
1623      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
1624      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
1625    o verification 1D_ocean_ice_column:
1626       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
1627       update results
1628    o pkg/diagnostics:
1629     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
1630       which are not filled-up but computed from other diags ; In this case, the mate
1631       diag points to the primary (filled-up) diag to used for post processing.
1632     - Update Velocity-potential computation using post-processed diag framework.
1633     ==> Change the ordering of fields and time-periods in MDS output file
1634       when using periodic averaging: now writes one time record with the full set
1635       of fields for this time period, then the next time reccord (it used to be
1636       one field with the full set of time records then the next field).
1637         Note: this is now similar to NetCDF (MNC) output file. <==
1638    
1639    checkpoint62z (2011/06/21)
1640    o adjoint monitor:
1641     - Add adjoint monitor output for packages exf, seaice
1642       and update relevant testreport output
1643    o pkg/seaice:
1644     - re-order diags inits so that they appear in order in available_diagnostics.log
1645     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
1646       area/heff/hsnow preceeding thermodynamic growth/melt.
1647     - modified diag: SIdA; output actual effect, as the description states.
1648     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
1649     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
1650       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
1651        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
1652     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
1653     - added diagnostics for seaice generic tracers (SItr*).
1654     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
1655     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
1656     I. Fenty: 18-Jun-2011:
1657     Minor changes to seaice package:
1658     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
1659        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
1660       - Differentiated "regularization variables" from "floor variables"
1661        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
1662        * hiceMin became SEAICE_hice_reg (old hiceMin)
1663          (with _reg meaning regularization variable)
1664       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
1665        so as to ensure energy conservation when going between phases
1666      - A22 was not used anywhere
1667     2) Changed regularization procedure for heffActual and hsnowActual to ensure
1668        well-boundedness and smooth adjoint in seaice_growth.F
1669     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
1670        because the old regularization always set heffActual >= 0.05 cm
1671     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
1672        on AREA when HEFF > 0.
1673      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
1674        requiring that DISABLE_AREA_FLOOR *not* be defined
1675     Affected verifications:
1676      - 1D_ocean_ice_column (output.txt output_adm.txt)
1677      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
1678    o pkg/diagnostics:
1679      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
1680      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
1681        (was _RL, now integer) with option = 0 to retrieve all levels.
1682      - add pieces of code to compute velocity potential at each level (new diagnostics
1683        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
1684        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
1685      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
1686        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
1687        and in diagnostics_fract_fill.F (do not need a valid pointer for the
1688        diagnostics counter-mate); check that definition of counter-diagnostic
1689        includes a valid counter-mate (in diagnostics_set_levels.F).
1690    o model/src (rStar):
1691      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
1692        affect solution only if z* with full pressure in EOS;
1693        update output of test-exp global_ocean.90x40x15.
1694    o pkg/seaice:
1695      - introduce siEps=1e-5 parameter
1696      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
1697      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
1698      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
1699        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
1700        as well as ice cover age and ridging index (attached to AREA).
1701        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
1702        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
1703        Up to SItrMaxNum=3 tracers can be used simultaneously.
1704    o pkg/salt_plume:
1705      -introduce SPsalFRAC run time parameter that sets the fraction of the
1706       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
1707       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
1708    o model debug options:
1709      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
1710        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
1711      - Refine debug-msg printing selection (3 new levels):
1712        debugMode  : controls printing of debug messages (sequence of S/R calls).
1713        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
1714         debLevZero =  0 ; /* level of disabled aux. msg printing */
1715         debLevA =  1 ; /* level of minimum  aux. msg printing */
1716         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
1717         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
1718         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
1719         debLevE =  5 ; /* level of extensive debug printing */
1720        New debugLevel default: with default debugMode value (=F),
1721          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
1722          and if debugMode=T, default debugLevel = 4 (debLevD).
1723        Relation with previous settings:
1724         debLevB (=2) corresponds to former debLevA (=1)
1725         debLevD (=4) corresponds to former debLevB (=2)
1726        Note:
1727         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
1728         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
1729            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
1730      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
1731        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
1732    o pkg/obcs:
1733      - change OBCSfixTopo default from True to False (should not change the results);
1734        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
1735    o pkg/thsice:
1736      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
1737        2nd layer seaice sublimation (unlikely to happen)
1738      - use Interior mask for OBCS in thsice_advection.F (similar to what is
1739        done in gad_advection & seaice_advection).
1740    o adjoint:
1741      bug fix spotted by Gael Forget:
1742      seaice_advection and thsice_advection still had
1743      legacy CPP options to avoid CS corner updates for adjoint
1744    o pkg/seaice:
1745      => Change some of the defaults (2011/05/29):
1746         - change SEAICEuseFluxForm default (from False to True)
1747         - change DIFF1 default (from 0.004 m/s to 0. m/s)
1748         And print warnings if DIFF1 is not set in data.seaice and centered
1749          avection scheme is used without any diffusion.
1750      also:
1751      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
1752      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
1753      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
1754        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
1755        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
1756      update results of test exp.:
1757         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
1758             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
1759             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
1760         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
1761         seaice_obcs: output (SEAICEuseFluxForm=T)
1762      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
1763          for standard fwd & AD lab_sea tests (to keep the same output).
1764    o pkg/seaice/seaice_growth.F:
1765      - use Ian Fenty's capping formulas for actual ice
1766      thickness thoughout EVOLUTION branch.
1767      - put treatment pathological case #2) in CPP brackets
1768      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
1769      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
1770    o pkg/seaice:
1771      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
1772      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
1773      also pass fac as a param, which can be 1. (to update the tendency
1774      field) or the time step (to update the field itself).
1775      - seaice_advdiff.F: for multidim, call seaice_diffusion with
1776      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
1777      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
1778      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
1779      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
1780    o pkg/seaice:
1781      diffusion with centered advection scheme (diffus.F & advect.F):
1782      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
1783        to just compute the laplacian of input-field.
1784      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
1785      - fix flux-form version in diffus.F to conserve tracer.
1786      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
1787       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
1788    
1789    checkpoint62y (2011/05/26)
1790    o pkg/seaice:
1791     - seaice_growth.F : in EVOLUTION branch, always include
1792       a_QSWbyATM_cover in qnet (as it should be).
1793     - verification/global_ocean.cs32x15 : update results accordingly
1794       (output.seaice.txt output_adm.seaice.txt).
1795    o pkg/seaice + obcs:
1796     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
1797       equivalent of assuming no tracer gradient outside the OB region.
1798       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
1799     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
1800       after changes above);
1801     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
1802       only at OB location (instead of over a band of OLx width).
1803    o pkg/seaice:
1804     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
1805       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
1806    o pkg/obcs:
1807      - split header file "OBCS.h" into 4 separated files:
1808        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
1809       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
1810         (contain no conditional statement which depends on OBCS options).
1811      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
1812        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
1813    o ctrl, cost, grdchk & autodiff pkgs:
1814      - make options file more standard (like other {PKG}_OPTIONS.h file but
1815        with AD_CONFIG.h); clean-up some of the included header files.
1816    o pkg/obcs:
1817      - do not mask tracer when applying OB (tracer == 0 could generate problems)
1818      - apply tracer OB values to tracer field only at OB location (instead of
1819        over a band of OLx width)
1820      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
1821      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
1822        obcs_apply_tloc.F & obcs_apply_sloc.F
1823    o obcs in model/src:
1824      - call OBCS_APPLY_W only if NonHydrostatic.
1825      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
1826      - reset dEtaHdt and wVel to zero outside OB interior region ;
1827      - leave tracer unchanged outside OB interior region: This has no effect
1828        on the solution but just to prevent unrealistic tracer value outside OB.
1829      - zero out velocity outside OB interior region: This has no effect on
1830        the solution but just to prevent unrealistic velocity outside OB.
1831    o obcs and non-lin free-surf:
1832       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
1833       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
1834       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
1835       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
1836       update results of test-exp. exp4(nlfs).
1837    o exp4 (nlfs) test-exp:
1838       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
1839       with NonLin-FreeSurf); update output.nlfs.txt
1840    o obcs and 2d/3d solver norm:
1841       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
1842       and outside OB interior region (will allow to place OB further inside the
1843       domain). Depending on the domain, can affects cg2d-Norm (previous
1844       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
1845       and cg3d-Norm (previous Norm was computed before canceling OB terms),
1846       e.g. in tutorial_plume_on_slope.
1847      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
1848    o pkg rbcs:
1849      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
1850      - add capability to apply relaxation to horizontal velocity uVel & vVel.
1851    o pkg/grdchk: add gradient check for control variable xx_shifwflx
1852    o pkg/shelfice/shelfice_init_fixed.F
1853      fix CPP-flag combinations
1854    o pkg/seaice: Merge iceage code of Pierre Rampal
1855      * update/change/correct ice age calculations
1856      * add age updates for pathological cases
1857      Probably needs more testing...
1858    
1859    checkpoint62x (2011/05/13)
1860    o pkg/mom_vecinv:
1861       high-order vorticity scheme: use interior masks (maskInW & S)
1862       to zero-out (outside OB) gradient of vorticity.
1863    o verification exp.:
1864       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
1865       hs94.128x64x5 and seaice_obcs ; update results.
1866    o pkg/obcs:
1867      fix bug in OBeta for YZ sections in obcs_exf_load.F
1868    o pkg/ctrl, pkg/shelfice, and optim:
1869      - add new control variable xx_shifwflx (fresh water flux underneath ice
1870        shelves). This is almost as tedious as obcs-ctrl, because the
1871        variables needs its own mask.
1872      - add a cost function term that penalizes the deviation of xx_shifwflx
1873        from the first guess (zero) in analogy to other control variables
1874    o pkg/shelfice:
1875      - start basic adjoint
1876    o pkg/ctrl:
1877      - remove extra 2D field "for good measure" when initializing in
1878        ctrl_set_globfld_[xy/xz/yz].F
1879      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
1880      - improve error messages in ctrl_set_unpack_*
1881    o OBC implementation in momentum:
1882       use interior masks (maskInC,W & S) in momentum S/R:
1883       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
1884       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
1885       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
1886       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
1887       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
1888        (and also with Leith/Smagorinsky harmonic-viscosity).
1889       Update output of experiment dome and exp4 (+nlfs).
1890    o exp4 test-exp:
1891      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
1892        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
1893        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
1894        time-varying OB at Western-side for wVel (NonHyd); update output.
1895      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
1896        and biharmonic-viscosity ; also use prescribed time varying OB.
1897    o pkg/obcs:
1898      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
1899    o model/src:
1900      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
1901      - initialise startTime & nIter0 with unlikely values: allows to set one
1902        from the other without ambiguity.
1903    o seaice_obcs test-exp.:
1904      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
1905    o pkg/obcs:
1906      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
1907        no longer needed with maskInC,W,S in pkg/generic_advdiff.
1908    o pkg/seaice:
1909      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
1910        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
1911      - fixed bug in the initialization of sea ice salinity variable HSALT
1912        in seaice_init_varia.F  (removed dependence on ICE2WATR)
1913    o fizhi-cs test exp.:
1914       switch reference output convention for these 2 non-standard test-exp,
1915        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
1916          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
1917       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
1918    o model/inc:
1919      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
1920        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
1921    o pkg/seaice:
1922      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
1923    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
1924      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
1925        and initial HSALT
1926    
1927    checkpoint62w (2011/04/26)
1928    o pkg/mom_fluxform:
1929      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
1930      - use parameter "sideDragFactor" in no-slip BC side-drag part.
1931      - update output of exp. global_ocean.90x40x15
1932    o pkg/mom_vecinv:
1933      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
1934    o update seaice exp.:
1935      use more consistent parameter values (remove "backward compatability only":
1936       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
1937      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
1938       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
1939    o update test-exp global_ocean.90x40x15:
1940      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
1941      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
1942      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
1943      o turn on zStar & viscA4 in standard set-up (dir input/)
1944        and update output files: output.txt & output.dwnslp.txt
1945    o new AD-test experiment: obcs_ctrl
1946      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
1947    o pkg/dic:
1948      fix two bugs in handling water vapour pressure in carbonate chemistry
1949      and air-sea fluxes. Found by Val Bennington and Galen McKinley
1950      (add DIC Option = WATERVAP_BUG to recover old results)
1951      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
1952    o adding allowInteriorFreezing option to check for water below freezing point
1953      at depth and bring the negative heat anomaly to the surface level
1954    o pkgs _fields_load:
1955      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
1956      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
1957        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
1958        rbcs to get interpolation weights and time reccord number.
1959      - fix multi-threading in aim_fields_load.F
1960      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
1961    o external_fields_load:
1962      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
1963       interpolation weights) to use in a periodic time-series ; do not divide by
1964       time-step to convert to integer:
1965       - this fixes case where externForcingPeriod is not multiple of time-step
1966          (Thanks to Christopher L. Wolfe)
1967       - this fixes case where externForcingPeriod is an odd multiple of time-step
1968         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
1969      store index of time-record which is currently loaded:
1970       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
1971       - needed for the adjoint but not yet used because of extensive recomputations;
1972         (to be fixed soon)
1973    
1974    checkpoint62v (2011/04/02)
1975    o verification/1D_ocean_ice_column added to test Ian Fenty's
1976      pkg/seaice_growth.F modifications for improving sea ice code differentiability
1977    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
1978      (new velocity statistics after changing maskInW & maskInS definition)
1979    o pkg/generic_advdiff with OBCS:
1980      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
1981      equivalent to assumption of no tracer gradient outside the OB region.
1982      This will affect the results if using obcs+biharmonic diffusion.
1983      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
1984    o pkg/obcs:
1985      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
1986      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
1987      in Interior region. No impact on solution but affects Velocity monitor stats.
1988    o pkg/ptracers (adjoint)
1989      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
1990      tape file for each tracer
1991    o model/inc/src and pkg/autodiff: add parameters that allow to turn
1992      of parts of the adjoint code at run time. For now, there are only
1993      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
1994      parameters are set in data.pkg.
1995      This is the lazy coward's version of doing this, but still useful for
1996      debugging. In order to do it right, everything needs to be moved to
1997      pkg/autodiff.
1998    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
1999      the end; this fixes the adjoint balancing code for open boundaries.
2000    o pkg/ctrl:
2001      - change behavior of xx_${varname}period to be analogous to exf-conventions:
2002        xx_${varname}period =   0.,  means time-independent control part
2003        xx_${varname}period = -12., means one-year-periodic monthly control part
2004      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
2005        clean up ctrl_init a little, remove unused variables
2006      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
2007      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
2008    
2009    checkpoint62u (2011/03/15)
2010    o model/src:
2011      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
2012        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
2013      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
2014        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
2015    o pkg/ctrl/obcs/ecco:
2016      - remove obsolete, unused, and partially broken code:
2017        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
2018        ALLOW_CTRL_OBCS_BALANCE
2019      - put a stop statement into ecco/cost_obcsvol.F, but also add
2020        cost_obcsvol to ecco_ad_diff.list
2021    o pkg/ecco: fix counting cost function contributions for obcs (code
2022      by Matt M.) and diffkr for diagnostics
2023    o pkg/ecco, pkg/ctrl, pkg/grdchk:
2024      add cost penalty terms for initial uvel, vvel, eta controls
2025      and I/O for prior error files
2026    o pkg/mdsio:
2027       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
2028       (new argument) to check for tiled file in mdsioLocalDir : this fix the
2029       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
2030    o pkg/ctrl:
2031     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
2032       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
2033       unused and superfluous variables
2034     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
2035    o pkg/ecco
2036     - enable adjoint of Stevens OB
2037    o pkg/ctrl/ecco/grdchk:
2038      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
2039        Fortunately, we do not have any tests for the numerous cpp-flagged
2040        option of "obcs as control parameters" so we will never know
2041        if this is an improvement (but at least now things compile).
2042      - remove an obsolete initialization from ecco_cost_init_barfiles.F
2043      - fix some problems within never used ifdefs to make the code compile
2044    o pkg/obcs:
2045     - Refine Interior mask definition to work with more complex OB (e.g.
2046       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
2047       read in Interior mask from file. Check if Interior mask is consistent
2048       with OB list of indices.
2049    o pkg/seaice
2050     - beginning code for a seaice tracer package,
2051       but currently only used for seaice age: SEAICE_AGE
2052       SEAICE_num = 4
2053       iTracer = 1: area-weighted ice age
2054               = 2: volume-weighted ice age
2055               = 3, 4: template for one-year vs. multi-year ice
2056       data.seaice has new namelist SEAICE_PARM03 for arrays related to
2057       SEAICE_num
2058    
2059    checkpoint62t (2011/03/05)
2060    o pkg/obcs:
2061     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
2062       then normal component. This ensures that the normal component is set
2063       correctly even when it conficts with tangential setting from an other OB.
2064       Affects results of test-experiment seaice_obcs: update the output.txt
2065    o pkg/obcs:
2066     - add code to monitor statistics of dynamical fields at OB.
2067     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
2068       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
2069       - change default: balance the Net inflow through all OB (instead of balancing
2070         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
2071     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
2072       to match Nortern OB inflow (OBCS_balanceFacN=0).
2073    o pkg/seaice:
2074     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
2075    o pkg/seaice (seaice_growth v 1.113):
2076     - reverting seaice_growth to v 1.111 in order to have code with exact bit
2077       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
2078       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
2079       runtime flag SEAICEareaFormula is kept but is inactive
2080    o model/src:
2081     - add new param to scale curvilinear grid distance and area when using
2082       a different sphere radius from the grid-files.
2083     - test/check multi-threads EXCH applied to local variable (cg2d_x)
2084    o adjoint:
2085     - enable adjoint of Stevens OB
2086     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
2087       (a bit delicate because of potentially modified adj. common block structure;
2088       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
2089    
2090    checkpoint62s (2011/02/15)
2091    o pkg/seaice (seaice_growth v 1.112):
2092     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
2093       computing the ice cover tendency from effective thickness tendencies. Include
2094       Ian Fenty's formula.
2095     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
2096       SEAICEareaFormula.
2097     - simplify notations for the various d_HEFF/d_AREA terms.
2098    o pkg/gmredi:
2099     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
2100       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
2101       add a verification test-run (front_relax.bvp) to test GM_useBVP.
2102    o pkg/seaice (seaice_growth v 1.111):
2103     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
2104     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
2105       also melt ice.
2106    o pkg/seaice:
2107     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
2108     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
2109    o pkg/cheapaml:
2110     - from Nico Wienders: New version of this package.
2111    o pkg/flt:
2112     - add CPP options to prevent floats to re-enter the opposite side of
2113       a periodic domain (default: keep periodicity)
2114    o pkg/gmredi:
2115     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
2116       (needed for multi-dim advection).
2117     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
2118    o model/src:
2119     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
2120    o tutorial_tracer_adjsens
2121     - extend to NLFS and replace maskC by hFacC
2122       (change reference output accordingly)
2123    
2124    checkpoint62r (2011/01/24)
2125    o testreport:
2126     - add option -deloutp (-do) to remove output file after successful run
2127     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
2128       extract exact list of procs from this file ; adjust COMMAND by
2129       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
2130    o pkg/ecco: replace old ineffective way of penalizing deviations from
2131      first guess (of obcs) with code by Matt Mazloff
2132    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
2133      exf/cal
2134      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
2135        and handle case of obcs?period == 0
2136        Not affected by these changes: There is still an inconsistency in
2137        the computation of start/endrec for the obcs variables for ALLOW_CAL
2138        defined (see comment by Menemenlis, 7-Mar-2003)
2139      - make S/R ctrl_get_gen_rec return something meaningful even if
2140        ALLOW_CAL is not defined
2141      - ctrl_getobcs?: simplify code so that it does not need to use
2142                       S/R exf_swapfields
2143    o testreport:
2144       allow to test MPI with different number of processors for each experiment:
2145       create file "SIZE.h.mpi" in each build dir.
2146       Note: update of "-command" argument not yet implemented.
2147    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
2148      alleviate the need for additional 3D tapes when using
2149      the non-inear free surface in the adjoint. This is done
2150      by adding an 'update' of hfacc etc. to their current
2151      value at the beginning of forward_step.F.
2152    o pkg/seaice
2153      seaice_lsr: move stress-divergence computations out of outer pseudo-
2154      timestepping loop
2155    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
2156      up, so that the calls of the ctrl_* subroutines are really at the end
2157      of the routine.
2158    o pkg/gmredi:
2159      allow to specify a 2-D horizontal map and a 1-D vertical profil
2160      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
2161    o pkg/seaice:
2162      move lsr iterations from seaice_dynsolver to seaice_lsr.
2163    o pkg/seaice:
2164      reduce memory footprint of seaice mutldim advection tapes,
2165      by using a 2D tape independent of the generic_advdiff ones,
2166      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
2167    
2168    checkpoint62q (2010/12/29)
2169    o model/src:
2170      - check horizontal grid-spacing for unset or zero/negative values.
2171      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
2172    o pkg/flt:
2173      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
2174      - precision of input and output files set according to readBinaryPrec
2175        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
2176      - initial float position from tiled file was not converted to index space
2177        (looks like a bug): fixed to make it similar to initial pos. global file.
2178    o global_ocean.cs32x15:
2179       change SIZE.h of AD set-up to get same tiling as with MPI.
2180       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
2181    o model/src:
2182       add flag to control printing of domain fields (bathymetry, hFac ...) in
2183       ini_mask_etc (call to plot_fieds_xy*).
2184    o pkg/thsice:
2185       if useEXF, some forcing fields are not valid in overlap: fixed by computing
2186       over the interior only + apply EXCH at the end (like with SEAICE advection).
2187    o pkg/mdsio:
2188      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
2189        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
2190      - change barrier call for safe multi-threads access to 3-D shared buffer.
2191      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
2192      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
2193        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
2194    o pkg/flt:
2195      - add fourth-order Runge-Kutta integration
2196      - add basic exch2 support (only 1 facet supported so far!)
2197    o pkg/mdsio+rw:
2198      new S/R to read local (or tile independent) vector (read counterpart of
2199       mds_writevec_loc, and front-end write_glvec_rl/rs).
2200    o global_ocean.cs32x15: additional input_ad.seaice experiment
2201        that uses pkg/seaice rather than pkg/thsice.
2202        (using multidim advection for seaice)
2203    o towards more F95 syntax for array specification in namelist:
2204      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
2205        of all verification experiments.
2206           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
2207          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
2208      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
2209    o global_ocean.cs32x15: additional input.seaice experiment
2210        that uses pkg/seaice rather than pkg/thsice.
2211    
2212    checkpoint62p (2010/12/17)
2213    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
2214        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
2215    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
2216        allow for use of multim. advection in seaice adjoint.
2217    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
2218      - first attempt to close budgets by taking into account the freshwater
2219        flux implied by the sublimation of snow and ice. So far only the
2220        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
2221        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
2222    o eesupp/src:
2223      new S/R with new option (NML_EXTENDED_F77) to change array specification
2224      from F95 standard to commonly accepted extended F77 form.
2225      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
2226      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
2227      for less tolerant f77 compiler (e.g., pgf77, g77).
2228    o globalFiles:
2229      commented out in parameter file "data" since it's not safe with MPI
2230      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
2231      in this case); no longer commented out in restart test (tst_2+2).
2232    o add adTapeDir to specify a special directory where adjoint tapes are
2233      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
2234      and cannot be used together with mdsioLocalDir.
2235    o nesting pkgs:
2236      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
2237      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
2238      - add parameter files + utils dir + output from short run on beagle.
2239    o pkg/seaice:
2240        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
2241    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
2242      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
2243    
2244    checkpoint62o (2010/11/25)
2245    o pkg/exf:
2246      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
2247    o pkg/seaice:
2248      - seaice_ocean_stress: split a loop for better vectorization of the
2249        adjoint code
2250      - seaice_growth.F: fix bug in conservation of freshwater connected to
2251        capping of heff, put contribution into d_HEFFbyNEG
2252      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
2253        by something more sensible (parameters that are what their name implies)
2254      - change some defaults, so that by default exf-parameters are used for
2255        things like rhoAir, cpAir,latent/sensible heat parameters, in order
2256        to reproduce the old results, many data.seaice now contain funny values
2257        for cpAir and latent heat of sublimation
2258    o packages_readparms.F: move exf_readparms up in line so that
2259        exf-parameters are visible for other packages (e.g. seaice)
2260    o debugMode & debugLevel=2:
2261      - differentiate between debugMode & debugLevel=2:
2262        debugMode: controls printing of debug messages (sequence of S/R calls).
2263        debugLevel: controls printing of algorithm intermediate results and stats.
2264      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
2265        => allows to print debug-stats without all sequence of call messages.
2266      - switch control of debug print from debugLevel to debugMode in many S/R.
2267    o pkg/obcs (obcs-sponge):
2268        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
2269        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
2270    o pkg/generic_advdiff:
2271      - record overlap minimum size for each advection scheme;
2272      - refine criteria on overlap minimum size;
2273      - check and stop (in gad_check) if overlap size is too small.
2274    o pkg/obcs:
2275      - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
2276        once, in ptracers_implicit.F)
2277      - with seaice: remove test on empty file name in obcs_apply_seaice (always
2278        apply OB values when tile has OB)
2279    o model/src, coriolis setting:
2280      - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
2281        useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
2282        files (selectCoriMap=3) with any grid.
2283      - add parameter "fPrime" for constant second Coriolis coeff (default=0).
2284    o pkg/seaice/seaice_growth.F:
2285        a few cosmetic changes that reduce the number of lines of code
2286    o pkg/obcs: add boundary conditions following Stevens (1990)
2287      - the code follows old MOM/NAOSIM code
2288      - so far it is only implemented for the eastern and western boundaries
2289        and NOT for pTracers
2290    o pkg/rbcs:
2291      - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
2292        beginning of the first rbcs forcing period.
2293      - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
2294        offline package, i.e., one file per time, labeled by iteration number;
2295        deltaTrbcs sets the timestep with which the data was generated;
2296        rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
2297      - rbcsForcingCycle=0 makes forcing non-cyclic.
2298      - make arithmetic safe for negative times and odd forcing periods.
2299    
2300    checkpoint62n (2010/11/09)
2301    o pkg/seaice:
2302        fix masking in free-drift S/R ; update results of exp. lab_sea.fd
2303    o pkg/obcs:
2304       New S/R to copy tracer value from the OB location to narrow band region
2305        (width = same as overlap) beyond the OB: preserve OB value (needed for
2306        high-order scheme) which were overwritten by EXCH call if in overlap
2307        region. Applied to theta, salt, ptracer and advected seaice variables.
2308       With seaice: use maskInC in similar way as in gad_advection.F,
2309        in seaice_advection.F and advect.F.
2310       Update output of experiment seaice_obcs and change exp4 to test OBCS with
2311        4th order Adv.Scheme. for pasive salt and ptracer.
2312    o tools/genmake2:
2313      - when looking for an optfile (not specified), only search for Fortran compiler
2314        (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
2315      - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
2316        (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
2317      - set default for CPP to "cpp -traditional -P" (was the case without specifying
2318        an optfile, but otherwise default was just "cpp".
2319      - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
2320      - when "CC" is not set in the optfile, look for possible C compiler
2321        (instead of just setting CC=cc)
2322      - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
2323        => add a ".F" to ".o" rule for source files with no "#include" (such as
2324           port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
2325      - move gfortran before g77 in list of possible Fortran compiler (consistent
2326        with reference compiler switch from g77 to gfortran)
2327    o pkg/seaice:
2328      o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
2329        seaice_check that stops the model, when the CPP flag is used.
2330      o seaice_growth.F: make capping of ice volume conserving by returning the
2331        capped ice as freshwater to EmPmR. This does not change the verification
2332        experiments but will change runs where the capping is acutally active
2333    o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
2334      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
2335         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
2336         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
2337    o tools/genmake2:
2338      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
2339      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
2340      - clean previous genmake log files before anything else.
2341      - change Makefile to remove testreport log files (*.tr_log) and genmake log
2342        files only with "CLEAN" target (instead of "Clean");
2343    o pkg/generic_advdiff:
2344      Change OBCS in multiDim advection (gad_advection.F):
2345       Use maskInC to prevent intermediate update of tracer-field in OB regions,
2346       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
2347       which were applying future time-step OB values.
2348      This way, all explicit calculations use current-time-step OB values
2349       (simpler and more consistent).
2350      Affects results when set-up uses time-varying OBC and multi-dim advection;
2351       update output of experiment seaice_obcs.
2352    o pkg/seaice:
2353      move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
2354       this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
2355         SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
2356      Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
2357       but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
2358       unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
2359    o pkg aim (2010/10/26):
2360      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
2361        formulation with obliquity, eccentricity, ... as run-time parameters,
2362      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
2363        upward shortwave radition at the surface (all-sky and clear-sky).
2364    o pkg/obcs:
2365      - writing sections with globalFiles=T does not work: switch to tiled-files
2366        when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
2367      - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
2368      - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
2369    
2370    checkpoint62m (2010/10/21)
2371    o pkg/seaice: vectorize seaice_solve4temp.F
2372      - move iterations loops outside of i/j-loops
2373      - requires 2D arrays for TB and effConduct
2374      - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
2375        modified in this routine
2376      - a little bit of clean up, adjusting indentation, etc.
2377      - replaced a few TEN**a by exp(a*log(10.)) in new code for better
2378        performance and '**TWO' by '**2' (because TWO is a float),
2379        replaced ONE, ZERO
2380    o eesupp/src:
2381       fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
2382    o pkg/seaice/seaice_growth.F
2383      Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
2384      merging process. The merged routine has two branches, and one activates the 'evolution'
2385      branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
2386      In summary, here is what the '10/10 revision' did consist of
2387        part 1: seaice_growth.F revisions 1.71 to 1.75
2388          - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
2389            The emphasis here was on improving readability (e.g. by trying to use meaningful
2390            variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
2391        part 1.5:
2392          - revising the lab_sea experiment to make it a more useful (i.e. stable
2393            and representative of an actual model run). This was done by generating a
2394            (winter) pickup to start from, switching back the main experiment dynamic
2395            solver from evp to lsr, having one of the experiments use the free drift solution.
2396        part 2: seaice_growth.F revisions 1.76 to 1.85
2397          - Sorting out hard-coded constants that prevented heat and fresh water conservation.
2398          - Sorting out the various fields units and sign (set early on and reset at the end)
2399            to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
2400            fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
2401          - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
2402            and simplifying logical expressions to further improve readibility.
2403        part 3: seaice_growth.F revisions 1.86 to 1.89
2404          - Re-organize the blocks of code more logically.
2405          - Merging the '_if.F' pieces that add something new.
2406    o pkg/thsice:
2407      - vectorize thsice_solve4temp and thsice_get_exf.
2408        Problem: thsice_solve4temp has an unvectorizable statement that
2409        might also be problematic for TAF
2410      - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
2411        does not change the verifcation experiment, but will change all
2412        experiments that have this flag undefined (not tested in verification);
2413        a little reorganization to save a few 2D fields and recomputations
2414      - 1st step of revisiting thsice adjoint (major recomp. sorted out)
2415      - 2nd step:  fix some store dirs
2416        o seems to work somewhat, i.e. using ifort but not g77
2417        o likely cause are incomplete init. or recomputation
2418        o start verification/global_ocean.cs32x15/input_ad.thsice
2419    o pkg/obcs: add support for exch2
2420      - the position of the boundary and prescribed values are specified using
2421        a global domain with exch2 facets stacked
2422        - in x for N,S boundaries (like W2_mapIO=-1)
2423        - in y for E,W boundaries (so E,W boundaries do not overlap)
2424    o pkg/mdsio: add support for writing global sections with exch2
2425        file layout is as for obcs described above:
2426        - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
2427        - for y-z sections, facets are stacked in y
2428    o pkg/thsice:
2429       - change a few routines for better vectorization: thsice_albedo.F,
2430         thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
2431         not affected, but in particular the latter routine has changed
2432         dramatically (not necessarily easier to read now).
2433       - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
2434       iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
2435    o verification/lab_sea:
2436      - overhaul of the forward model experiments. The main motivation
2437        for this revision is that lab_sea has proven quite fragile (when
2438        changing the sea-ice code, and switching platforms) to a point
2439        when failures were very hard to attribute to specific code problems.
2440      - the suspected reason for this fragility is noise amplification by evp so,
2441        to start with, we decided to replace evp with lsr in the main experiment.
2442      - the input.lsr experiment thus became obsolete and was removed.
2443      - it was replaced with the input.fd experiment that uses an
2444        analytical "free drift" solution as the ice velocity field.
2445      - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
2446        will hopefully allow us to discriminate problems due to dynamic solvers
2447        from problems due to the thermodynamic code. input.salt_plume (lsr) allows
2448        us to test additional options, along with the salt plume package.
2449      - Finally a pickup was generated (at the end of a one year run) to
2450        make the tests more representative of an actual model run. Previously
2451        the tests starting point was a 1m thickness of ice everywhere.
2452    o pkg/seaice:
2453      - introducing S\R seaice_freedrift.F that compute the
2454        analytical solution to an approximate ice momentum
2455        equation (i.e. the simple stress/coriolis balance).
2456      - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
2457        of the free drift velocity field, and enable its use.
2458        To actually use the free drift solution as the model ice
2459        velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
2460    o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
2461    
2462    checkpoint62l (2010/10/04)
2463    o pkg/seaice:
2464      -fix the USE_ORIGINAL_SBI version (for variable freezing point);
2465      -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
2466       version (with USE_ORIGINAL_SBI undef);
2467    o add hooks for new packages OASIS, the package will follow
2468      (hooks exclude the seaice pkg for now)
2469    o pkg/autodiff: ALLOW_AUTODIFF_WHTAPEIO
2470      Option to use mdsio_read_whalos.F/mdsio_write_whalos.F,
2471      rather than mdsio_readvector.F/mdsio_writevector.F, within
2472      adread_adwrite.F to read/write adjoint-related tapes to disk.
2473    o eesupp and pkg/mdsio: ALLOW_WHIO
2474      Option to write/read 2D fields to files including tiles halos.
2475      The main purpose is for adjoint related "tape I/O".
2476      The secondary purpose is for debugging phases.
2477      A word on those rather specifically intended purposes.
2478      The code was meant to be stripped down to the bare minimum.
2479      Typically, there is a unique and basic mapping to the global
2480      buffer (tile by tile, then proc by proc, then level by level), and
2481      byteswaps and meta-files are omitted. Indeed the (*_WH*) code is not
2482      meant to generate user friendly outputs of various shapes and forms.
2483      Rather it is intended, for the knowledgeabale developers,
2484      to be largely independent of the many mdsio options, to allow
2485      outputs of tiles+halos in debugging phases and in adjoint runs,
2486      and to allow some flexibility in tuning (adoint) I/O depending on each
2487      file system behavior. With regard to tuning, most of the potential knobs
2488      (to leave files open, to allocate the I/O indep. of usesinglecpuio,
2489      to specify directories, to specify the typical size of I/O calls, etc.)
2490      are not yet included, and will be added if they prove useful.
2491    o pkg/seaice:
2492       fix uninitialised arrays in USE_ORIGINAL_SBI version of seaice_solve4temp.F
2493    o pkg/seaice:
2494       new S/R seaice_solve4temp.F: this is the merged version of Ian Fenty
2495       code (seaice_budget_ice_if.F) which enable to recover old standard
2496       code (seaice_budget_ice.F) when option USE_ORIGINAL_SBI is defined.
2497       temporary: add "#define USE_ORIGINAL_SBI" at the top of seaice_solve4temp.F.
2498    o model/src (rStar):
2499       use simple average (not area weighted) of rStarFac at U,V point when using
2500       vectorInvariant and selectKEscheme=1,3 (consistent with mom. vertical advection)
2501       update output of exp. fizhi-cs-32x32x40 and fizhi-cs-aqualev20.
2502    
2503    checkpoint62k (2010/09/17)
2504    o adjoint
2505       * changed verification/global_ocean.cs32x15 ; adjoint now tests
2506         Adams-Bashforth 3 + NLFS + RSTAR
2507       * some more modifs required for ECCO-GODAE v4
2508    o pkg/seaice
2509       add SEAICE_AGE_VOL option to use volume instead of area for
2510       integrating SEAICE_AGE
2511  o model/src:  o model/src:
2512     first check-in of sigma & hybrid-sigma coordinate code ; also includes     first check-in of sigma & hybrid-sigma coordinate code ; also includes
2513     non-linear free-surface parts ; but pressure-gradient not yet coded.     non-linear free-surface parts ; but pressure-gradient not yet coded.
# Line 273  o tools/build_options: Line 2777  o tools/build_options:
2777      but keep the former optfile for few weeks for smooth transition      but keep the former optfile for few weeks for smooth transition
2778  o pkg/ecco  o pkg/ecco
2779    - allow user defined cost function contributions    - allow user defined cost function contributions
2780          CPP: ALLOW_USERCOST_CONTRIBUTION       CPP: ALLOW_USERCOST_CONTRIBUTION
2781          USAGE: compute contributions in cost_usercost_all.F       USAGE: compute contributions in cost_usercost_all.F
2782    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
2783        the two options are complementary.        the two options are complementary.
2784  o pkg/smooth  o pkg/smooth

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