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revision 1.1596 by gforget, Mon Feb 13 23:45:41 2012 UTC revision 1.1769 by mlosch, Thu Nov 15 15:37:25 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 :  o pkg/seaice:
8    - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula.EQ.    - turn the LSR-relaxation parameters WFAU/V into runtime parameters
9    1 or 2, using newly added run time parameter SEAICE_availHeatTaper.      SEAICE_LSRrelaxU/V
10      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
11    o pkg/aim_v23:
12      - implement heating from friction (bottom friction and stratospheric drag).
13    o pkg/shap_filt:
14      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
15        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
16    o model/src:
17      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
18        time-constant addMass field from file (addMassFile);
19      - support for heating due to friction (and Kinetic Energy dissipation):
20        add option, run-time switch and 3-D field array + support code ; each pkg
21        or S/R can add heating contribution (if there is a sink of KE); the sum is
22        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
23    o pkg/seaice:
24      - complete merge of ITD code into seaice_growth.F
25        from MITgcm_contrib/torge/itd/code/
26        no verification so far, but Torge Martin tested
27        "1-D test case and Beaufort set up;
28        deliver okay results after 1 model year."
29      - complete merge of SEAICE_SIZE.h into all relevant routines
30      - move computation of eta at Z-points into calc_viscosities
31        + introduce global field etaZ
32        + add different methods for computing etaZ, for now the old
33          method (simple averages of eta to Z-points) is hardwired
34        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
35          seaice_preconditioner
36      - simplify computations for SEAICE_ZETA_SMOOTHREG
37      - seaice_preconditioner:
38        + replace one remaining press by pressLoc (mistake)
39        + adjust printing of residuals
40      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
41        + add (SEAICE.h) and rename some counters (initiliased in
42          seaice_init_fixed.F)
43        + add _BEGIN/END_MASTER (myThid)  around print statements
44        + print total number of iterations and failures over SEAICE_monFreq
45          interval to STDOUT
46      - move control over output-messages by fgmres to seaice_jfnk to save
47        some operations
48      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
49        in order to make restarts with sol .ne. zero (fgmres with restarts)
50        (seaice_jfnk.F, seaice_fgmres.F)
51      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
52        a serious convergence problem when open boundaries are involved
53    o pkg/ggl90: fix computation of control volumes for the case of
54      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
55      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
56    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
57    o pkg/autodiff
58      - Add inAdMode switch for SEAICEuseDYNAMICS:
59        SEAICEuseDYNAMICSinAdMode
60        (extend logic in ADAUTODIFF_INADMODE_SET)
61    o pkg/seaice
62      - Step 1 of merging ice-thickness distribution (ITD) code from
63        MITgcm_contrib/torge/itd/ (author: Torge Martin)
64        The code implements concept laid out in Thorndike et al. (1975);
65        code is enabled via CPP flag SEAICE_ITD
66        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
67        code is not complete yet!!
68      - SEAICE_SIZE.h now included in almost all seaice routines
69    o verification (using seaice):
70      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
71        global_ocean.cs32x15.seaice ; update results.
72      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
73      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
74        offline_exf_seaice (previously compiling B-grid).
75    o pkg/exf:
76      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
77        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
78        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
79    o pkg/layers (adjust changes from Sept 19):
80      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
81        this allows to remove "layers_maxNum" dimension from all layers arrays.
82    o pkg/layers (adjust changes from Sept 19):
83      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
84      - snap-shot extended to all type of layers (not just the 1rst type);
85      - remove layers variables when corresponding CPP option is undef.
86    o pkg/layers:
87      - rename pkg/layers variable and add new output (layer exist & un-weighted
88        velocity in layer)
89    o pkg/seaice:
90      - simplify (?) ocean-drag coefficent computations by using
91        the same routine in all three solvers (saves some code lines)
92      - remove global fields DRAGA and DRAGS from C-grid code and
93        declare them locally in lsr.F (the only place where they are
94        still used)
95      - update AD output of lab_sea.evp (very sensitive anyway).
96    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
97      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
98      and SEAICEuseJFNK=.true. A few things to note:
99      - involves a FGMRES, that is parallel but very inefficient,
100        because of many scalar products (global sums) in the Gram-Schmidt
101        orthogonalization method. Needs to be replaced. Original code
102        from J.-F. Lemieux
103      - preconditioner for FGMRES is a stripped down version of LSOR
104      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
105        preconditioner. For the preconditioner, the default is set to 10.
106      - Jacobian times vector is computed with finite differences
107      - marginally related to JFNK-solver: add a smooth regularization for
108        zeta with tanh that will improve convergence (Lemieux and Tremblay,
109        2009) for any implicit solver (not implemented for EVP because EVP
110        does not need this regularization in the first place). Define
111        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
112    o eesupp/src:
113      - check in genmake2 that intrinsic S/R flush is available.
114      - add S/R to flush IO unit (if intrinsic S/R flush is available)
115      - flush standard & error msg unit before MPI termination
116      - if debugMode, flush IO unit after printing msg
117    o pkg/ctrl:
118      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
119        to ctrl_set_unpack_xyz.
120    
121    checkpoint64 (2012/10/09)
122    o pkg/shelfice
123      - in mom_fluxform.F, mom_vecinv.F:
124        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
125        Bug fix KappaRU -> KappaRV
126        does not change verification/isomip but may change other setups
127        (presumably constant KappaRU=KappaRV)
128      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
129    o pkg/obcs:
130      - fixed some indexing bugs in obcs_seaice_sponge.F
131      - added obcs relaxation subroutines for HSALT and HSNOW
132      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
133    o pkg/seaice:
134      - add "multicategory" parameterization for snow in analogy to ice,
135        default is off for now.
136    o pkg/obcs:
137      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
138        see verification/seaice_obcs/input.seaiceSponge for example application.
139      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
140        index setting by master-thread. This fix multi-threads Pb in previous modifs.
141    o pkg/layers :
142      - add diagnostics to pkg/layers
143      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
144        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
145    o pkg/generic_advdiff/gad_implicit_r.F :
146      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
147    o pkg/seaice/seaice_growth.F:
148      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
149    o pkg/obcs:
150      - change default setting of OBCS_UVICE_OLD from defined to undef;
151      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
152        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
153      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
154      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
155        with Southern & Western OB at a tile edge (at least in a simple set-up).
156    o pkg/obcs:
157      - change settings of OB index in case OB coincides with tile edge (shared by
158        2 tiles), so that common OB location is registered by both tiles (instead of
159        only 1). However, for Southern and Western OB, index value = 0 is not
160        recognized as valid OB index (=default null value) and needs to be fixed.
161      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
162      - new parameter "OB_indexNone" for null index value (for now, still zero)
163        to replace hard-coded null index value of zero.
164    o pkg/exch2:
165      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
166        always check buffer-size (but outside the loop); move checking for valid
167        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
168        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
169    o pkg/ctrl (pack & unpack):
170      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
171        (locally defined) for different variables (+ remove the variable-specific
172        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
173        (to be extended to other local file names in ctrl.h).
174    o pkg/flt:
175      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
176    o pkg/mdsio:
177      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
178    o tools/genmake2:
179      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
180        (added by Alistair in version 1.51 for building without make depend);
181      - remove Header files list (H_SRC_FILES) from the dependence of targets
182         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
183        place in version 1.23): this save going through staf when unrelated header
184        file has been modified.
185       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
186        "make depend" step, still need to do "make links" before "make adtaf".
187    o eesupp/src (+ few pkg src files) & genmake2:
188      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
189      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
190      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
191         upper/lower case ; account for space between "#" and undef/define)
192    o pkg/flt (with exch2):
193      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
194      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
195    
196    checkpoint63s (2012/09/05)
197    o pkg/ecco:
198      - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.
199      - add more relevant #ifdef ALLOW_SMOOTH ones.
200      - sort out useAtmWind, useSMOOTH, ctrlSmoothCorrel2D.
201    o pkg/ctrl:
202      - CTRL_OPTIONS.h : document CPPs related to smoothing; ALLOW_SMOOTH_CORREL2D/3D,
203        ALLOW_CTRL_SMOOTH, ALLOW_SMOOTH_CTRL2D, ALLOW_SMOOTH_CTRL3D.
204      - ctrl.h : document run time params doInitXX, doMainPack, doMainUnpack, doPackDiag,
205        doSinglePrecTapelev (audodiff param!), ctrlSmoothCorrel2D (new) and
206        ctrlSmoothCorrel3D (new).
207        The added ctrlSmoothCorrel2D/3D replace the old ALLOW_SMOOTH_CORREL2D/3D CPP.
208      - ctrl_readparms.F : initialise ctrlSmoothCorrel2D/3D and read from namelist.
209      - ctrl_init.F ctrl_pack.F ctrl_unpack.F : switch off ustress/vstress
210        controls when useAtmWind, and vice versa.
211      - ctrl_map_ini_ecco.F : UVEL0, VVEL0, edtaux, edtauy cannot be smoothed as tracers.
212      - ctrl_get_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL2D with
213          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel2D, IF useSMOOTH.
214      - ctrl_map_ini_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL3D with
215          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel3D, IF useSMOOTH.
216      - ctrl_set_pack_xy[z].F, ctrl_set_unpack_xy[z].F:
217        replace ALLOW_SMOOTH_CORREL2D/3D brackets with ctrlSmoothCorrel2D/3D.
218    o pkg/smooth:
219      - remove un-necessary includes.
220      - remove ALLOW_SMOOTH*D and ALLOW_SMOOTH_CORREL*D brakets.
221        Those CPP options were never defined, and not necessary.
222    o model/src:
223      - fix CPP brackets in ini_mixing.F (GM_background_K belongs to gmredi).
224      - standard treatment of useSMOOTH.
225    o pkg/autodiff:
226      - add LOGICAL useGGL90inAdMode, useGGL90inFwdMode, useSALT_PLUMEinAdMode,
227        useSALT_PLUMEInFwdMode allowing to switch off ggl90 and salt_plume adjoint.
228    o pkg/exch2:
229      - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)
230        + start to remove ALWAYS_USE_MPI in source code that TAF does not see.
231      - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag
232        and tiles to process mapping.
233      - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)
234        moving /EXCH2_FILLVAL_RX/ & /W2_EXCH2_COMMFLAG/ to W2_EXCH2_TOPOLOGY.h;
235        rename "exch2_tProc" to "W2_tileProc" and move seting of e2FillValue_RX
236        from w2_eeboot.F to w2_readparms.F.
237    o eesupp/src:
238      - set exchNeedsMemsync & exchUsesBarrier according to "usingMPI" (instead of
239        ALWAYS_USE_MPI) + moved from ini_communication_patterns.F to eeset_parms.F;
240        also move setting of exchCollectStatistics from exch_init.F to eeset_parms.F
241      - in eedie.F and all_proc_die.F, always call MPI_FINALIZE when ALLOW_USE_MPI
242        is defined (remove condition on usingMPI) to match cases where MPI_INIT
243        has been called.
244      - fix bug I put in previous modif of exch_sm_3d_rx.template (not much used);
245      - change default (non-MPI) value of myPid (from 1 to 0) to match MPI settings
246        (so that on 1 proc, get same myPid independently of usingMPI)
247      - add a stop if multi-procs but usingMPI=F ; stop also if usingMPI=T and
248        useCubedSphereExchange with EXCH-1 (safer).
249      - add "if usingMPI" where it was missing (+ start to remove ALWAYS_USE_MPI).
250    o pkg/ggl90:
251      - fix bug in filling corner mask array "mskCor" (FILL_CS_CORNER_TR_RL call)
252        used in ALLOW_GGL90_SMOOTH code.
253    o pkg/flt:
254      - fix typo in FLT_WITHOUT_Y_PERIODICITY (the effect was to ignore stopping
255        floats at the Southern end of the domain).
256    o eesupp/inc:
257      - add a list of CPP-options which can be set by Makefile (DEF_IN_MAKEFILE.h);
258        but not used (and not to be used) anywhere, just for documentation.
259    o pkg/autodiff, exf, ptracers & seaice (AD & TL output):
260      - comment out the very nasty "writeBinaryPrec = writeStatePrec" line, since:
261        a) can damage previously written records in any other multi-record files.
262        b) if needed, can easily do it cleanly, by calling S/R WRITE_REC_3D_RL/S.
263    o tools/genmake2:
264      - define variable MAKE within Makefile and use it in place of 'make';
265      - update AD_CONFIG.h (if needed) before building any of the executable
266        (forward, adjoint or tangent-lin); this involves a 2nd invocation of make;
267        and add the usual #ifndef/#define AD_CONFIG_H in AD_CONFIG.h;
268      - always print usual warning comment 'this file is automatically generated'
269        from script convert_cpp_cmd2defines (+ remove this warning from genmake2).
270    o pkg/cheapaml:
271      - updated to correspond to the code used in accepted paper (Nico Wienders).
272    o pkg/exf:
273        added run time switch useAtmWind to replace ALLOW_ATM_WIND cpp switch.
274        ALLOW_ATM_WIND now just sets the useAtmWind default (see exf_readparms.F)
275        and force defines ALLOW_BULKFORMULAE (EXF_OPTIONS.h).
276    o pkg/exf, autodiff, ctrl, ecco and seaice:
277        remove ALLOW_ATM_WIND brackets, or replace them with useAtmWind ones.
278    o pkg/ctrl, ecco:
279        allow to compile both ALLOW_U/VSTRESS_CONTROL and ALLOW_U/VWIND_CONTROL.
280        Depending on useAtmWind, one is inactive, and the other is active (see
281        exf_getffields.F/exf_getsurfacefluxes.F).
282    o tools/genmake2:
283      - improve error msg when failing in 2nd test of check_for_broken_Ff
284      - fix option '-makefile' short-name (-mf according to genmake2 -help)
285      - source local config file "genmake_local" just after processing the genmake2
286        command arguments (previously done before processing arg).
287    o pkg/grdchk:
288      - add a call to TURNOFF_MODEL_IO for Tangent-Linear run (in this case, call
289        to this routine from cost_final has been dropped in g_cost_final)
290      - improve printed information (more explicit msg, no longer using "print *,"
291         fix fcpertminus printed value).
292    o model/src:
293      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
294        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
295        this prevents getting cost-funct reset in adinitialise_varia recomputations.
296    o pkg/dic:
297      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
298        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
299    o pkg/grdchk:
300      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
301      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
302    o pkg/autodiff/ctrl/grdchk :
303      - attempt to sort out what works and what does not,
304        with regard to I/O, and to warn/stop accordingly.
305    o pkg/grdchk:
306      - attempt to fix grdchk in the case of useSingleCpuIO.
307      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
308       statements were moved from grdchk_main.F and into
309       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
310      - a global sum is applied to record numbers icvrec/layer
311       out of grdchk_loc so that they be passed to I/O routines.
312    o pkg/smooth:
313      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
314        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
315    o verification/testreport:
316      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
317      - can also use compressed (gzip) reference output file;
318      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
319        to be easier to collect by testreport.
320      - update existing TLM output (half out-of-date by more than 3 yrs).
321      - report NETCDF & LAPACK settings (from genmake2) in output dir.
322      - report run-time in each individual summary (previously only for AD test);
323        for TLM test, add also TAF version.
324      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
325    
326    checkpoint63r (2012/08/15)
327    o tools/genmake2:
328      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
329    o pkg/ecco/ecco_cost_final.F :
330      - fix fc print statements (to stdout and costfunction0000) so
331        that the printed value is always after the global sum.
332    o pkg/seaice/seaice_dynsolver.F :
333      - fix ice strength assymptote at SEAICE_area_max<1
334        (no change for the standard case of SEAICE_area_max=1)
335    o some cleaning:
336      - pkg source files: ensure that all *.F files from each pkg included the
337        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
338        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
339        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
340        includes;
341      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
342      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
343        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
344        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
345      - update option-file CPP_OPTIONS.h of all AD experiments:
346        * no longer include PACKAGES_CONFIG.h ;
347        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
348        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
349          including ECCO_CPPOPTIONS.h).
350    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
351      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
352        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
353        not necessary accurate).
354      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
355        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
356        deliberately break compilation (a remainder that it needs to be customized)
357      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
358      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
359      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
360    o tools/genamke2:
361      - check for lapack.
362    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
363      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
364        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
365        from both packages.
366      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
367      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
368      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
369        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
370    o pkg/cost : add comments to explain special and/or untested setups.
371    o pkg/exf:
372      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
373        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
374    o verification/*/code_ad:
375      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
376      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
377      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
378        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
379    o pkg/seaice :
380      - added possibility to change ice strength/PRESS0 relationship to
381        HEFF, according to the following run time parameters
382        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
383        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
384        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
385    o pkg/ggl90 :
386      - added run time flag mxlSurfFlag to include the code that ensure
387        mixing between first and second level (previously included as a comment)
388    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
389      - add test of newly added dumpAdByRec=T option where
390        we write all records to one file per variable.
391    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
392      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
393        to check that this code is ok with taf and compiles in adjoint.
394    o pkg/autodiff :
395      - added run time param dumpAdByRec : ad dump format switch.
396        If true then write all records to one file per variable.
397        Else write one file per record (remains the default).
398      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
399    o pkg/seaice:
400     - Added SEAICEuseTILT run time switch : if set to
401       false then omit the tilt term in seaice dynamics.
402     - Fix free drift calculation.
403    o pkg/shelfice:
404      When initializing SHELFICEDragQuadratic, set default to be
405      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
406      but retain option to set it independently
407      (inconsistenty spotted by Veronique Dansereau)
408    o eesupp/inc:
409      - in EEPARAMS.h, add real-type constant for some frequently used simple number
410         (0,1,2,1/2), with name explicitly referring to RS/RL type.
411    o model/src:
412      - move balancing of relaxation terms to new S/R balance_relax.F.
413    o pkg/autodiff:
414      re-write active I/O high-level (control) S/R:
415      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
416      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
417      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
418        MDS_READ/WRITE_FIELD); change loops to multi-threads.
419      - update and merge active_file_control_slice.flow into active_file_control.flow
420      - update the calls in lower level S/R (active_file.F, active_file_g.F and
421        active_file_ad.F) keeping the argument list and function unchanged.
422      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
423        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
424      - new low-level active I/O routines, one for each type (RL/RS), for active var
425        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
426        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
427        right type.
428    o autodiff and RS=real*4:
429      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
430        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
431      - change argument type of 3-D mask argument to _RS to match type in the call
432        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
433    o pkg/thsice:
434      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
435      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
436        fresh-water flux: uniform correction or proportional to local precip.
437    o pkg/ctrl:
438      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
439      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
440                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
441      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
442    
443    checkpoint63q (2012/07/30)
444    o pkg/autodiff:
445      note about monitor and snap-shot of ad-variables:
446      a) need to apply ADEXCH before monitor or output of ad-vars to include
447       overlap contributions (was done for adjDump but missing for monitor).
448      b) since ADEXCH implies adding overlap values to interior array, machine
449       truncation error is expected when adding an ADEXCH call in the middle of
450       the time-stepping (although mathematically identical).
451      modifs:
452      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
453        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
454      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
455        apply ADEXCH before monitor or snap-shot of ad-variables:
456           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
457      - implement new method (copy+adexch) for snap-shot and monitor of main model
458        ad-vars (initially not used by default -> output unchanged).
459      - change default (set to 2) to use new method and update few output_adm.txt
460        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
461        and both tutorial_tracer_adjsens tests).
462      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
463        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
464    o pkg/ctrl:
465      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
466      generic control variables via
467      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
468      Only required customization should be S/R ctrl_map_ini_genarr.F
469      (routine in repository contains example)
470    o pkg/exf:
471      - fix and refine checking of surface-relaxation setting when using EXF
472    o verification (adjoint exp):
473      - reduce length of simulation by half for experiment global_ocean.cs32x15
474        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
475    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
476      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
477        of KE that can occur with aggressive optimization
478      + put quadratic bottom drag calculation in separated loops (only done if
479        using bottomDragQuadratic)
480    o model/src: CG2D_NSA
481      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
482         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
483      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
484         change cg2d residual target to be expressed in Wunits (=> do not normalise
485         RHS ; this fix global_max Pb with TAF); update output.
486    o verification/tutorial_tracer_adjsens:
487       improve parameter consistency (and get rid of warnings):
488       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
489       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
490       - use staggerTimeStep (for stability) in som81; use default rotation period.
491    o pkg/exch2:
492      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
493        reset to 0 = 1 long line in X)
494    o pkg/mdsio:
495      - fix reading of dimensions from meta file for large-size domain
496    o model/src:
497      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
498      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
499        Cubed-Sphere Exch with CS-corners inside the domain;
500        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
501        globalArea and to set hasWetCSCorners.
502      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
503        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
504      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
505        useCDscheme and useCubedSphereExchange).
506    o pkg/seaice/seaice_growth.F :
507      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
508        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
509        when the previous code was not correct.
510      - in all cases diagnoze the boundary condition mismatch to SIaaflux
511      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
512        that term to QNET (essentially to set the melt/freeze water to 0degC).
513        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
514    o verification/global_ocean.cs32x15/input.seaice :
515      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
516      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
517      - update results (output.seaice.txt) accordingly.
518    o verification/lab_sea/input/data.seaice :
519      - remove SEAICEheatConsFix, which is now be tested
520        in global_ocean.cs32x15. The presently coded fix
521        is only consistent with real fresh water + nlfs.
522      - update results (output.txt) accordingly.
523    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
524    o AD_CONFIG.h file:
525      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
526      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
527        add it explicitly in each fortran src file where it is needed.
528        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
529        thus introducing potentially wrong dependency; therefore, better to include
530        it only where it's really needed, and after any other included OPTIONS file
531        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
532        or ALLOW_TANGENTLINEAR_RUN).
533    
534    checkpoint63p (2012/07/06)
535    o pkg/autodiff:
536      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
537      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
538        which are now read from new parameter file "data.autodiff" (inAdExact
539        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
540      - add file "data.autodiff" in all verification/*/input_ad/ directories.
541      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
542        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
543    o verification/tutorial_tracer_adjsens/
544      - add extra sub-verification which uses "SOM" advection scheme
545        (2nd Order-Moment Advection Scheme, Prather Limiter) with
546          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
547        and in data:
548          multiDimAdvection=.TRUE.,
549          tempAdvScheme=81,
550          saltAdvScheme=81,
551    o model/src:
552      - introduce ALLOW_BALANCE_RELAX which allow the removal
553       of the global mean of relaxation terms by setting
554       balanceThetaClimRelax and balanceSaltClimRelax
555      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
556       This case is now treated appropriately in seaice_growth.F
557    o pkg/seaice:
558      - do balanceEmPmR and balanceQnet based on the net fluxes
559        (SItflux) that enter the ocean+ice system rather than QNET
560        and EMPMR. Works best in real fresh water.
561      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
562        out of the diagnotics bloc, and stored in global arrays.
563    
564    checkpoint63o (2012/06/29)
565    o vertical mixing schemes:
566      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
567      - replace computation of density (in Function STATE1, opps_calc.F) by a call
568        to S/R FIND_RHO_SCALAR
569      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
570        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
571        affects output (vermix.ggl90) at truncation level.
572    o testreport:
573      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
574        (nSx,nSy) for the number of threads (from eedata.mth)
575    o model/src:
576      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
577        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
578    o verification/tutorial_tracer_adjsens/
579      - compile with ALLOW_CG2D_NSA
580      - run with nonlinFreeSurf=3
581      - update reference output_adm.txt
582    o tools/genmake2:
583      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
584        refine usePROFILES switching off (only when NetCDF is not available).
585    o verification (atmospheric set-up):
586      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
587    o pkg/profiles : refine profiles and files handling.
588    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
589    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
590      - changes to use model/src/the_main_loop.F rather than the ecco version
591        in ecco type adjoint runs.
592    o model/src:
593      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
594      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
595      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
596    o model/src:
597      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
598        update output of test experiment bottom_ctrl_5x5.
599    o pkg/generic_advdiff:
600      - implement vertical bi-harmonic diffusion (for now, only for T & S and
601        only explicitly).
602    o verification/bottom_ctrl_5x5/
603      update reference output (results changed quite some time ago,
604      not sure when; but new reference results look ok in terms of grdchk)
605    o verification/1D_ocean_ice_column/
606      For verification purposes, the exact adjoint rather than an approx.
607      should be used (e.g., to comare against F.D. or TLM).
608      removed autodiff_inadmode*_ad.F routines in code_ad/
609      Update results/ accordingly.
610    o pkg/cal:
611      - change cal_getdate.F so that output date is function of input time only
612        (less ambiguous, not mixed up with input iteration number).
613      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
614    o pkg/diagnostics:
615      - implement calendarDumps also for stats-diags
616      - implement calendarDumps also for snap-shot output (negative freq)
617      - for now, ignores calendarDumps if non-zero phase-lag.
618    
619    checkpoint63n (2012/06/04)
620    o model/src:
621      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
622        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
623      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
624        similar to calc_r_star.F); update results of experiment internal_wave and
625        tutorial_global_oce_in_p (affected @ truncation level).
626    o pkg/shelfice:
627      - add parameterisation of advective-diffusive flux into the ice shelf
628        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
629      - simply eps3/3a computation
630    o eesupp:
631     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
632       between tiles, just fill-in edges assuming locally periodic subdomain) and
633       add corresponding exchange subroutines (EXCH0);
634     - new CG-solver version (_EX0) for disconnected-tiles special case.
635    o model/src (CG-solvers):
636     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
637       (similar final residual output and max-Iter number as with standard version);
638     - allows to store and use lowest-residual solution (standard & _SR versions);
639     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
640     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
641    o eesup/src:
642     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
643       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
644    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
645    
646    checkpoint63m (2012/04/27)
647    o pkg/shelfice:
648     - account for partical cells in surface level below ice-shelf for hydrostatic
649       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
650    o ad test experiments:
651     - update and rename to "ad_optfile.local" local AD-optfile specific to a
652       particular adjoint verification experiment (in verification/*/code_ad/)
653    o pkg/seaice & pkg/exf:
654     - Part two of ECCO-CLIVAR code merges.
655       Completes merge of seaice area relax. code.
656       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
657       to be set in EXF_OPTIONS.h since this pkg controls its I/O
658       (and avoids second CPP option in SEAICE_OPTIONS.h)
659     - change default value of costIceStart & costIceEnd to a valid date.
660     - add snowPrecip to HSNOW in seaice_growth
661    o pkg/ptracers:
662     - move ptracers summary and setup check into separated S/R ; add a check for
663       valid PTRACERS_Iter0 value (error+stop or just warning).
664    o pkg/cal (+ pkg/ecco):
665     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
666       as input; and for AD, unless both are not differentiable (e.g., k index)).
667    o model/src:
668     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
669       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
670       temporary set to usingZCoords value (to be changed to F when using shelfice).
671     - hydrostatic pressure: implement partial cell near the surface also for
672       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
673       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
674    o pkg/ctrl/ctrl_init.F:
675     - add a formal parameter to s/r ctrl_init_rec to print
676       xx_$(ctrl_valiable)_file for easier debugging
677     - move call of cal_* routines into the if-block where they are really
678       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
679       to specify a startdate
680    o pkg/seaice:
681     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
682       global_ocean.cs32x15/code versions).
683     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
684       verification experiment global_ocean.cs32x15.seaice and update results.
685    o pkg/exf:
686     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
687       (according to useExfYearlyFields).
688    o pkg/cal:
689     - move calendar setting & summary (previously in cal_readparams.F) into new
690       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
691       length of the simulation is set (after SET_PARMS call); This is an attempt
692       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
693     - For safety: keep a record of pkg/cal parameter settings status
694               to allow to STOP if one pkg/cal S/R is called too early.
695     - add a stop in all basic pkg/cal subroutines if called before setting is done.
696     - modify cal_getdate.F: stop when nothing was returned;
697       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
698       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
699    
700    checkpoint63l (2012/04/04)
701    o pkg/bbl:
702      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
703        update global_with_exf output.yearly.txt file.
704    o pkg/cal:
705      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
706      - remove 2 unsused and very short (1 line only) functions ;
707      - remove unsused subroutines from AD-Diff list.
708    o model/src:
709      - start to implement clean wait to stop in initialization S/R (config_check.F,
710         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
711    o folowing PRINT_MESSAGE changes:
712      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
713    o pkg/bbl:
714      - modification so it can work with z*
715      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
716      - global_with_exf/input.yearly verification; changes output.yearly.txt
717    o eesupp/src:
718      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
719        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
720      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
721        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
722      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
723      - when using MPI, always set usingMPI=T ; set default accordingly and stop
724        if not consistent.
725      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
726        argument is zero (in case called within single-thread section).
727    o pkg/fizhi:
728        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
729        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
730    o pkg/exch2:
731      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
732        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
733      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
734        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
735        with bad ones coming from a not-yet-updated halo.
736        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
737    o pkg/frazil:
738        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
739        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
740    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
741    o verification/lab_sea
742      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
743      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
744      * nTimeSteps 3 -> 4
745      * changed reference output accordingly
746    o pkg/ctrl:
747      * fix ctrl_get_gen for xx_sst, xx_sss
748    o pkg/fizhi:
749      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
750        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
751      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
752        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
753        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
754    o pkg/gmredi:
755      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
756    o pkg/fizhi:
757      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
758        (old)aces open64 tuv test.
759    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
760    o pkg/mom_vecinv:
761      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
762        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
763        with non-lin free-surf).
764    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
765      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
766      some compilers (gfortran 4.6.0 on MacOS)
767    o momentum:
768      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
769        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
770        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
771    
772    checkpoint63k (2012/03/17)
773    o model/src:
774       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
775         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
776       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
777         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
778    o model/src: solve_*diagonal.F
779       - replace division with multiplication by inverse (similar to original version)
780         update output of AD exp. global_ocean.90x40x15.
781       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
782         to enable the use of the vectorized & differentiable solve_tridiagonal.F
783       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
784         vertical advection (to get solve_tridiagonal tested in AD mode).
785    o pkg/seaice: ECCO-CLIVAR merge:
786      1. seaice AREA relaxation
787         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
788         * runtime flag: SEAICE_tauAreaObsRelax
789      2. modified global mean cost imbalance code: CPP option
790          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
791    o another iteration on solve_*diagonal.F
792       Make choices independent of AUTODIFF
793       Default will be the adjoinable vectorized version.
794       Alternative choices are:
795       * non-adjoinable original version with low memory footprint:
796         #define SOLVE_DIAGONAL_LOWMEMORY
797       * still adjoinable but does not vectorize (k as inner-most loop):
798         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
799    o testreport
800     - add option to use a home made wrapper around "make"
801     - remove MITGCM_IEEE env. variable (no longer active)
802    o pkg/shelfice
803     - improve computation of friction velocity for velocity dependent
804       exchange coefficients: include velocities into SHELFICEBoundaryLayer
805       block to average velocities vertically
806     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
807    o Modify diagonal solvers, now three versions (upon request):
808      #ifndef SOLVE_DIAGONAL_AUTODIFF
809        1. default version (dating back a while ago)
810      #else /* def SOLVE_DIAGONAL_AUTODIFF */
811      # ifdef SOLVE_DIAGONAL_KINNER
812        2. adjoinable version with k-innermost loop (G. Forget)
813      # else
814        3. adjoinable vectorized version of 2.
815      # endif
816      #endif /* SOLVE_DIAGONAL_AUTODIFF */
817      All flags are currently set within routines, but could/should be moved to CPP-options.
818      Array bounds for 1. are as before, for 2.,3. cover the entire domain
819      (could be changed for 1. too).
820    o verification/lab_sea (fwd):
821      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
822        use 7 categories (except hb87), new solve4temp params (except salt_plume),
823        constant salinity (=4) or variable salinity (salt_plume) done through
824        SItracer.
825    o pkg/seaice:
826      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
827      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
828         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
829        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
830        SEAICE_freeze got retired) but already better than previously with
831        SEAICE_freeze=123456.7 deg.C;
832      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
833        (safer multi-threaded setting); always set SEAICEuseEVP;
834      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
835        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
836        stop if multiple specifications for the same coeff; make sure default
837        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
838    o pkg/obcs:
839      - allow to switch to upwind 1rst order advection scheme for the advective
840        flux computation at the open-boundary; disabled for adjoint built.
841    o pkg/ptracers:
842      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
843      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
844      - add parameter to decide when to start a tracer; use internal flag to
845        know which tracer to step-forward; switch this internal flag at the top
846        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
847        for adjoint built.
848    o pkg/seaice:
849      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
850      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
851      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
852    o pkg/ecco:
853      - fix writing of output file DiagnosCost_ClimSalt/Theta
854        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
855    o pkg/seaice:
856      - add missing initialisation of COR_ICE array in dynsolver.F
857      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
858        compiled either way, and is tested in all exps (multidim was only tested
859        in lab_sea ad before).
860      - cosmetic change to prepare for future addition of ITD. no change to results.
861        no defaults change.
862      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
863      - by lack of adequate verification experiments, I further used custom versions
864        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
865        should be correct.
866      - avoid recomputations in ad.
867    o array initialisation in adjoint mode:
868      1) pkg/mom_common/mom_calc_ke.F:
869        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
870        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
871        part this initialisation is gone, resulting in Floating Point Exception
872        (caught by open64 compiler with debug option).
873      2) model/src/convective_weights.F
874        set output convectCount over the full array range (instead of doing
875        an update): this fix a similar issue when called within recomputation (adjoint)
876        which could by-pass the initialisation (normally done in the caller S/R).
877    o pkg/seaice:
878      - final version of turbulent flux params, as agreed at MIT ice meet:
879           SEAICE_mcPheePiston (default is ~ 0.000875)
880           SEAICE_mcPheeTaper (default is 0.)
881           SEAICE_frazilFrac (defualt is 1.)
882           SEAICE_mcPheeStepFunc (default is false)
883      - changes results at trunction error level
884      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
885    o added pkg/frazil:
886      - see frazil_description.tex for details
887      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
888    o pkg/shelfice/shelfice_thermodynamics.F
889      - fix exponents for velocity dependent exchange coefficients: change
890        from 2/3(=0) to 0.66666666666666667
891      - move computation of velocity dependent exchange coefficients into
892        separate loop, so that it applies to both thermodynamics
893      - move some divisions by constants out of loops
894    
895    checkpoint63j (2012/02/16)
896    o pkg/seaice:
897      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
898      - SItracer:  added run time params, and allow coupling to ocn salinity.
899    o pkg/seaice: remove (almost) all divisions by constants within loops
900      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
901      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
902      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
903      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
904    o pkg/seaice :
905      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
906        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
907    - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.    - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
908    - add permanent SItflux diag that corresponds to TFLUX but includes    - add permanent SItflux diag that corresponds to TFLUX but includes
909    ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.      ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
910    - allow activation/testing of a fix for suspected missing term in    - allow activation/testing of a fix for suspected missing term in
911    ocn-ice heat budget (to be confirmed). To test this, you want to      ocn-ice heat budget (to be confirmed). To test this, you want to
912    undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param      undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
913    SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.      SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
914    - no change in results, fwd or ad.    - no change in results, fwd or ad.
915  o global_ocean.cs32x15/results: three changes following from the pkg/seaice commit below.  o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
916    - switch to variable freezing point.    - switch to variable freezing point.
917         Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.         Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
918    - bug fix : the sublimation term that was missing is now activated.    - bug fix : the sublimation term that was missing is now activated.
919         Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.         Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
920    - bug fix : flooding sign term for SIsal0.NE.0.    - bug fix : flooding sign term for SIsal0.NE.0.
921         Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.         Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
922  o pkg/seaice:  o pkg/seaice:
923    - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT    - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
924   is now the default, and the old default constant freezing point is recovered with      is now the default, and the old default constant freezing point is recovered
925   SEAICE_tempFrz0    = -1.96,      with SEAICE_tempFrz0    = -1.96,
926   SEAICE_dTempFrz_dS = 0.,           SEAICE_dTempFrz_dS = 0.,
927    - retire SEAICE_freeze that was the old way of specifycing the constant freezing point.    - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
928    - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.    - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
929    - bug fix (thanks to M. Losch) : the sublimation term that was missing is now    - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
930   activated. To reproduce old results that had this bug define SEAICE_DISABLE_SUBLIM.      activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
931    - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)    - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
932   was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).      was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
933    - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in    - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
934   seaice_growth r149 for legacy branch (no results change).      seaice_growth r149 for legacy branch (no results change).
935    - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code from I. Fenty).    - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
936    - results did not change except for global_ocean.cs32x15, mostly due to the switch      from I. Fenty).
937    to variable freezing point (see above item for detail).    - results did not change except for global_ocean.cs32x15, mostly due to the
938        switch to variable freezing point (see above item for detail).
939  o pkg/thsice:  o pkg/thsice:
940    - fix and simplify interface to salt_plume pkg ; diagnose directly amount of    - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
941      seawater freezing in thsice_calc_thickn (not used).      seawater freezing in thsice_calc_thickn (not used).
942  o pkg/seaice: turbulent flux term specification via run time params.  o pkg/seaice: turbulent flux term specification via run time params.
943    - replace CPP switches with run time switches to facilitate testing    - replace CPP switches with run time switches to facilitate testing
944    - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX, GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR    - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
945                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
946    - added runtime parameter : SEAICEturbFluxFormula    - added runtime parameter : SEAICEturbFluxFormula
947    - move Mcphee constants to SEAICE_PARAMS.h    - move Mcphee constants to SEAICE_PARAMS.h
948    - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;    - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
949      SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply); remove               SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
950      seaice_summary call (moved to seaice_init_fixed)               remove seaice_summary call (moved to seaice_init_fixed)
951    - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on    - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
952      SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)      SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
953    - seaice_summary.F : add missing report of read turbulent flux term set up (and SITRACER).    - seaice_summary.F : add missing report of read turbulent flux term set up
954    - seaice_check.F : check range; inform and stop if retired CPPs are used (incl. SEAICE_AGE).                         and SITRACER.
955      - seaice_check.F : check range; inform and stop if retired CPPs are used
956                         (incl. SEAICE_AGE).
957    - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without    - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
958          CPP switch, same computation as before for the different options.           CPP switch, same computation as before for the different options.
959    - change results at the truncation level.    - change results at the truncation level.
960  o pkg/seaice:  o pkg/seaice:
961    - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:    - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:

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