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revision 1.1743 by mlosch, Mon Sep 24 15:07:38 2012 UTC revision 1.1944 by jmc, Sat Nov 30 23:00:00 2013 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/exch2:
8      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
9        through list of all tiles my proc owns.
10    o model/src:
11      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
12        from rTrans) to simplify dependencies (no need to store rTrans anymore in
13        calling S/R); this affects AD results at machine truncation level:
14        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
15        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
16    o tools/build_options:
17      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
18    o coupling interface pkgs:
19        [compon_communic, atm_compon_interf & ocn_compon_interf]
20      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
21        to each S/R that needs it; remove un-used variables.
22      - change component tile registration (cpl_register.F in both compon_interf
23        and mitcomponent_tile_register.F) to pass the full list of tiles
24        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
25      - with pkg/exch2: adopt the same convention used for I/O to define mapping
26        towards coupler global array (unless W2_useE2ioLayOut=F):
27         a) can now use different tiling between atm & ocn comp.
28         b) no needs to modify the run-Off map when changing tiling (was needed
29            even if using the same tiling between atm & ocn).
30         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
31            full land tiles); not yet tested.
32      - check for valid mapping from comp. tile to coupler global array
33      - improve report of tile registration results to log file.
34    o pkg/exch2:
35      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
36        tile-registration (CPL_REGISTER);
37      - activate (un-comment) definition and setting of "W2_tileIndex" list to
38        store the local bi,bj indices of each tile;
39      - also print bi,bj in local report to log file;
40      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
41        Jun 2009 modif of pkg/exch2).
42    o testing on baudelaire:
43      - run 2 tests at a time: no significant slow down (since enough cpu) and
44        get the full set of test done earlier
45      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
46    o model/src/thermodynamics.F and routines called from it:
47      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
48        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
49        velocity (outp) by adding bolus velocity.
50      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
51        mass transport from velocity + lateral grid cell area
52      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
53      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
54     in thermodynamics.F
55      - remove k from thermodynamics.F and move it to temp_integrate.F
56        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
57        loop).
58      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
59        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
60        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
61        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
62      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
63        global_ocean.90x40x15, tutorial_global_oce_biogeo and
64        tutorial_tracer_adjsens (+ TLM output).
65    o tools/OAD_support and (verification/*/) code_oad:
66      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
67        module conversion ; remove unneeded CPP_EEOPTIONS.h.
68      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
69        version (closer to model/inc/CPP_OPTIONS.h).
70    o model/src:
71      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
72        retired list of parameters (routine FREEZE has been replace by surface
73        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
74    o pkg/gmredi:
75      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
76        velocity (same scheme but affects machine truncation) for GM_AdvForm.
77      - update output of FWD experiments: front_relax.bvp,
78        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
79    
80    checkpoint64q (2013/11/17)
81    o verification:
82      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
83        tutorial_global_oce_biogeo and global_ocean.90x40x15.
84      - generate new output (growth & melt) for seaice_itd experiment after
85        updating the input pickup_seaice files (previously wrong).
86    o pkg/cost:
87      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
88        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
89        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_TILE_RL
90          cannot be applied to var in common block).
91        o allows to get results independent of tile-per-proc setting (if using
92          slower GLOBAL_SUM_SEND_RECV option).
93      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
94        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
95        forward gradients: update output).
96      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
97        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
98    o pkg/mom_common:
99      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
100        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
101        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
102        ensure that all field value that are used are set.
103    o tutorial_deep_convection (smag3d):
104      - add missing scaling in mom_calc_smag_3d.F;
105      - set smag3D_coeff in input.smag3d such that results do not change.
106    o pkg/dic:
107      - change dic_cost.F to compute cost on each tile first and then apply
108        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
109        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
110      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
111    o eesupp/src & pkg/mdsio:
112      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
113        (from pkg/mdsio) since they are no longer used for tape IO.
114      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
115        (+ keep a copy in pkg/atm_ocn_coupler).
116    o verification/isomip:
117      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
118    o tools/build_options:
119      - optfile linux_amd64_ifort11, fast (no ieee) case:
120        to get a working restart for all experiments, add "-fp-model source"
121        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
122    
123    checkpoint64p (2013/10/20)
124    o pkg/autodiff:
125      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
126        criteria, return to simple (default) tape IO format.
127    o pkg/mdsio (+ eesupp/src):
128      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
129        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
130      - fix globalFile and singleCpuIO options using simpler global mapping.
131      - new pairs of scatter/gather vector S/R (one for each type, generated from
132        template) corresponding to simpler global mapping.
133      - adread_write.F: switch to new S/R (but leave old calls commented) and write
134        to globalFile when parameter globalFiles is set to True.
135      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
136    o pkg/autodiff:
137      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
138        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
139        missing, just add a STOP if array type do not match.
140    o pkg/exf:
141      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
142         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
143         and rename array obsSIce to exf_iceFraction.
144    o tutorial_deep_convection:
145      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
146        for now all in this exp. code dir.
147      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
148        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
149    o eesupp/src:
150      - added SINGLE_DISK_IO option because reading of parameter files on
151        very large number of processors did not work with existing set-up
152    
153    checkpoint64o (2013/09/25)
154    o pkg/atm_phys & atm_compon_interf:
155      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
156    o tools/build_options:
157      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
158        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
159        remove CPP setting (was identical to genmake2 default).
160    o pkg/gmredi & model/src: Some updating and work done on the residual model.
161      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
162      - fixed up the calculation of the eddy stress and how it is added to the
163        external forcing via taueddy_external_forcing.F
164      - at the moment, it is very experimental and only works with the variable eddy
165        diffusivity calculated in gmredi_k3d.F
166    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
167        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
168    o testreport (& tools/do_tst_2+2):
169      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
170    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
171      - remove CPP='cpp -traditional -P' (this is genmake2 default)
172      - add switch (for big setups) to use 'medium' memory-model (but leave it
173        commented out for now). Note: needed with FC 19 to compile big setups.
174    o pkg/atm_compon_interf:
175      - regroup per field origin (model & pkgs) the coupling storage routines
176         (which accumalate in time each coupling field)
177      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
178        update accordingly + simplify aim_do_physics.F
179    
180    checkpoint64n (2013/08/26)
181    o pkg/bbl:
182      - update formulation to reduce dispersion of tracer properties in bbl
183      - replaced horizontal and vertical transport parameters with velocities
184      - changes results for verification/global_with_exf.yearly
185    o verification/halfpipe_streamice:
186      - change to matrix construction; update both Fwd & AD output.
187    o verification/tutorial_tracer_adjsens:
188      - OpenAD test: switch to vector-invariant momentum since fluxform with
189        rStar causes problems with OpenAD; update output.
190    o tools:
191      - genmake2: define a common prefix for all temp-file names ; move them
192        to local /tmp disk (but would be easy to move them back);
193      - xmakedepend: apply the same switch for temp-files.
194    o pkg/offline:
195      - changes for use with rStar (NLFS): assume that we continue to provide
196        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
197        output files) and apply r* scaling at each time-step (function of the time
198        varying Eta field); use normal pickup files (needed for restart with NLFS).
199    o adjoint with OpenAD:
200      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
201        package openad.  This package has to be compiled for all runs with OpenAD
202        instead of specifying code_oad_all as a modification directory.
203      - link the fortran templates from tools/OAD_support to the build directory
204        for preprocessing to avoid conflicts between different setups compiled
205        simultaneously and simplify cleanup.
206    o pkg/exf:
207      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
208        main model or other pkgs are exchanged in EXF_MAPFIELDS).
209    o model/src:
210      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
211        (similar to do_fields_blocking_exchanges.F).
212    o tools/genmake2:
213      - remove TAF output src code just before calling staf (when not doing a fresh
214        built, will stop if things go wrong with staf).
215      - fix target "adobj" (left from TAF version-2 transition)
216    o pkg/diagnostics:
217      - add a parameter to track the status of pkg/diagnostics activation;
218        this replace/extend the use of logical param "settingDiags" (to check
219        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
220        New S/R to print error message and stop when pkgStatus is not right.
221      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
222    
223    checkpoint64m (2013/08/13)
224    o model/inc:
225      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
226        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
227    o pkg/kpp & aim_v23:
228      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
229    o pkg/seaice:
230      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
231        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
232      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
233    o eesupp/src:
234      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
235        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
236    o switch to TAF version-2:
237      - add flow directives to "freeze" naming convention for ad-routines that
238        are used in I/O routines of adjoint state and associated common blocks
239        that are used in adcommon.h (backward compatible with version-1)
240      - update all ad-optfiles (in tools/adjoint_options + few local to some
241        verification exp) to switch to latest TAF version (currently 2.5.5);
242        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
243        out except for diva).
244      - the major change with TAF version-2 is that both the differentiated
245        routines and the forward routines (new) are returned as part of the TAF
246        output source code. Update genmake2 accordingly.
247      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
248        with version-2 when compared to TLM or FWD gradient); other experiments
249        output show minor changes (machine truncation level); update the few AD &
250        TLM output with 12 matching digits only (some prior to version-2 switch).
251    
252    checkpoint64l (2013/08/05)
253    o model/src:
254      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
255      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
256        when using TAF but only if using OpenAD.
257    o pkg/mom_common+fluxform+vecinv:
258      - always set horiz. viscosity arrays to background value before calling
259        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
260        only when using variable horiz. viscosity (useVariableVisc=T);
261      - simplify mom_vecinv.F (only 1 block for momViscosity).
262    o pkg/mom_common: variable horiz. viscosity in NH code
263      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
264        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
265      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
266        useBiharmonicVisc & useVariableVisc.
267      - fix old bug (already in 1rst implementation of variable horizontal viscosity
268        in calc_gw.F, version 1.27, 2006/06/20):
269        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
270        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
271      - change background horiz viscosity in vertical momentum (gW) to always be
272        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
273        any type of variable viscosity, e.g., viscAh/4Grid)
274      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
275        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
276        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
277        default viscAh,viscA4 is zero).
278    o model/src:
279      - extend length of drC & recip_drC from Nr to Nr+1.
280    o Divided Adjoint (DIVA) with MPI:
281      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
282      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
283        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
284    
285    checkpoint64k (2013/07/23)
286    o tools/OAD_support:
287      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
288        and remove it from genmake2.
289    o tools/build_options:
290      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
291        MPI_HEADER_FILES list (let genmake2 find the missing headers)
292    o verification/halfpipe_streamice:
293      - change to driving stress formulation; update both Fwd & AD output.
294    o tools/genmake2 and Divided Adjoint with MPI:
295      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
296      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
297      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
298        Makefile, which is set by genmake2, and check which mpi-headers are needed.
299        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
300      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
301    o testreport:
302      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
303        perform additional runs (number of additional runs is "add_DIVA_runs" taken
304        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
305    o verification/lab_sea (AD test):
306      - change to test Divided Adjoint Run in this set-up (both standard AD test
307        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
308    o pkg atm_ & ocn_compon_interf:
309      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
310        staggerTimeStep implementation) and disable (retired) corresponding
311        parameter.
312    o pkg/offline:
313      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
314      - add S/R OFFLINE_CHECK to print offline parameter summary
315        and stop if loading a file that is not used;
316      - enable to calculate GMRedi tensor, KPP mixing and convective index
317        when the corresponding file(s) is/are not specified (but pkg is used).
318      - comment out resetting of monitorFreq (to endTime) since it still useful
319        for monitoring CFL numbers and checking offline fields.
320    o OpenAD:
321      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
322        smaller standard output) and generate new (smaller) output (on baudelaire
323        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
324    o model/src:
325      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
326        (where external_forcing_adjust was called) and change list of arguments;
327      - merge external_forcing_adjust.F into external_forcing_surf.F
328      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
329        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
330        previously in file "balance_relax.F", now removed); remove corresponding
331        arrays in FFIELDS.h.
332      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
333        a hack for getting back surfaceForcingS (loaded from file) when using
334        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
335      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
336        (was getting only 11 digits for AD-grad, due to different truncation
337         error in AD code).
338    
339    checkpoint64j (2013/07/04)
340    o pkg/offline:
341      - to enable the use of other features with pkg offline (e.g., obcs),
342        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
343      - comment out "allowFreezing" (now active) in 2 offline testing exp.
344    o pkg/exf ALLOW_RUNOFTEMP
345      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
346      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
347      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
348    o pkg/atm_phys:
349      - allows to add some damping on uVel,vVel (strength only function of k).
350    o verification, ad-tests:
351      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
352        global_ocean_ebm and offline_exf_seaice.thsice.
353    o verification/halfpipe_streamice:
354      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
355        flux input boundary conditions to be ignored; a fix for this bug changed
356        verification results for forward test.
357      - add adjoint test.
358    o pkg/ptracers:
359      - allow to restart without SOM pickup (resetting SOM to zero).
360    o pkg/gmredi:
361      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
362      - It uses mixing length theory and suppression by steering level effects to
363        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
364        to JPO, for more details).
365      - It also uses the diffusivity to calculate an eddy induced streamfunction
366        based on a PV closure (rather than a buoyancy closure as in GM).
367      - New files added to pkg/gmredi:
368        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
369          induced overturning streamfunction (called from gmredi_calc_tensor)
370        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
371          for use in gmredi_k3d
372        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
373          the eddy diffusivity
374    
375    checkpoint64i (2013/06/18)
376    o pkg/cheapaml:
377      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
378        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
379        with pkg/cheapaml.
380    o utils/python: add subpackage for cubed sphere function, first example is
381        simple cs.pcol to plot 2D fields on a map
382    o pkg/streamice:
383      - This is a new package in MITgcm, which solves dynamic equations for ice
384         sheets and ice streams
385      - At the moment it is independent of atmosphere/ocean dynamics, or any
386        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
387        ed that this will change)
388      - There is a new verification exercise that tests it, halfpipe_streamice,
389        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
390        rectangular embayment
391      - halfpipe_streamice is forward-only for now, will have TAF test soon
392      - for questions, email dgoldber@mit.edu
393    o pkg/thsice:
394      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
395        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
396      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
397         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
398      - allow precip from pkg/cheapaml to make snow over seaice.
399    o pkg/cfc:
400      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
401      - remove atmos CFC 2-D arrays from common bloc (now local variables)
402      - change some hard-coded constant to run time parameter for reading and
403        and interpolating atmospheric CFC ; keep same default as previously.
404      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
405      - put arguments in standard order: myTime, myIter, myThid
406      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
407        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
408      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
409      - new routine to print summary of CFC params and check for consistency.
410    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
411      similar to thsice_advdiff.
412      Note that for the B-grid case the routine parameters uc/vc are overwritten.
413    o pkg/cfc:
414      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
415        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
416      - fix interpolation of atmphspheric CFC between Sorthern and Northern
417        hemisphere value.
418    o pkg/seaice:
419      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
420    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
421                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
422      - requires an additional time level that is stored in the pickup
423      - you can start with AB2 from a pickup without this time level with
424        pickupStrictlyMatch = .false.
425    
426    checkpoint64h (2013/05/26)
427    o pkg/cheapaml:
428      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
429        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
430      - consistent treatment of uWind,vWind location: assume everywhere in
431        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
432        (Note: was already the case for Tair,Qair advection);
433        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
434      - compute diabatic forcing only in the interior (excluding overlap regions)
435      - fill in array "Qsw" (for short-wave heating);
436      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
437        before any update (consistent with MITgcm state var diagnostics);
438      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
439        non periodic ; + adjusted for uWind,vWind (C-grid).
440    o pkg/seaice:
441      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
442        add explicitly pkg/exf in experiments that currently use pkg/seaice.
443      - allows to compile pkg/seaice without pkg/exf.
444    o tools/OAD_support:
445      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
446        of array "ourStepOf" in function rvNextAction (revolve.F90).
447    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
448      - change pkg name (to be used with other atmospheric physics pkg)
449        but by-pass CVS when making the new pkg so that we keep the CVS history.
450    o pkg/offline:
451      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
452        (previously called from pkg/dic_surfforcing_init.F)
453    o model/src:
454      - re-order sequence of calls within packages_init_variables.F, using
455        standard order, except for:
456         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
457         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
458    o new pkg: atm_phys
459      - add entry point and source code (previously in contrib
460          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
461        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
462      - re-order sequence of calls within packages_readparms.F,
463         packages_init_fixed.F and packages_write_pickup.F
464        (but skip packages_init_variables.F because of TAF issues).
465      - update contrib/*/atm_gray/ experiment.
466    o pkg/seaice (ITD code):
467      - simplify and fix the writing of pickup-files for ITD case
468    o pkg/seaice (ITD code):
469      - introduce floe size dependent lateral melt for ITD case;
470      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
471      - update seaice_itd experiment main output.
472    o pkg/thsice:
473      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
474        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
475        changed accordingly pkg/atm2d.
476    
477    checkpoint64g (2013/05/01)
478    o pkg/exf ALLOW_RUNOFTEMP
479      - if defined,  river and glacier runoff temperature can be read-in from
480        runoftempfile; runoftempfile needs to have same format as runofffile
481    o pkg/thsice (& pkg/bulk_force):
482      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
483        for energy content of Precip + RunOff & Evap (like with pkg/exf).
484      - change computation domain to always be the interior (without overlap).
485      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
486    o verification/tutorial_global_oce_biogeo:
487      - add preliminary OpenAD setup (still has problems)
488    o pkg/seaice:
489      - turn some parameters for choosing the convergence criterion of
490        the inexact Newton method (JFNK) into runtime parameters for convenience
491      - clean up seaice_calc_viscosities.F: remove/retire two options for
492        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
493        the results of lab_sea/input because a division has been replaced by
494        a multiplication with the reciprocal (sumNorm)
495      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
496        convergence of solver (changes results, of course), and to test some
497        new features
498    o model/src:
499      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
500      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
501      - move forcing adjustment (balancing surface forcing) in specific S/R
502        where might also be applied exchanges (if needed) to forcing arrays.
503    o pkg/shelfice:
504      - allow to specify the Ice-Shelf mass per unit area (instead of
505        shelficeLoadAnomaly) and do the conversion from one to the other
506      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
507        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
508        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
509        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
510      - update isomip experiment forward output (get machine truncation error
511        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
512    o verification/offline_exf_seaice:
513      revise data.seaice in input.thermo and input_ad and update results accordingly
514        HO = 0.2, SEAICE_areaLossFormula = 2,
515        SEAICE_growMeltByConv = .TRUE.,
516        SEAICE_doOpenWaterMelt = .TRUE.,
517      Improve consistency with input.thsice and fix the spurious 500m ice corners
518    o verification/global_ocean.cs32x15:
519      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
520        in icedyn (thsice+seaice-dyn) test and update output.
521    o verification/offline_exf_seaice:
522      - adjust list of tested variables (with testreport) and update
523        standard test output with better slection of monitored fields.
524    o pkg/cd_code:
525      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
526        experiment lab_sea.hb87
527    o tools/genmake2:
528      - change default makedepend from the system default to tools/xmakedepend:
529        When no makedepend is specified, select tools/xmakedepend it the test pass,
530        otherwise select the system default (if exist and pass the test) or
531        try to build cyrus-makedepend ; stop if none of the 3 works.
532    o pkg/exf & pkg/thsice:
533      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
534        for energy content of Precip + RunOff & Evap. Assumes:
535       1) Rain has same temp as Air.
536       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
537       3) Run-Off comes at the temp of surface water (with same Cp)
538       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
539        put directly into Latent Heat flux & should use water-vapor heat capacity.
540       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
541        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
542    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
543        (compile when SEAICE_ALLOW_JFNK is defined)
544    o pkg/thsice:
545      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
546        implementation): move THSICE_AVE call after the advection (called directly
547        from thsice_do_advect.F).
548    o verification/global_ocean.90x40x15 and OpenAD:
549      New experiment for OpenAD is identical to the one in input_ad except that
550        multiDimAdvection=.FALSE.,
551      There is still an issue with this.
552    o pkg/thsice:
553      - account for ice velocity (ocean relative velocity) in turbulent heat flux
554        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
555        and offline_exf_seaice (main test).
556    
557    checkpoint64f (2013/03/31)
558    o verification/OpenAD:
559      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
560    o verification/isomip, pkg/shelfice and OpenAD:
561      - add OpenAD setup to this exp and make shelfice package work with OpenAD
562    o verification/tutorial_global_oce_biogeo:
563      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
564    o verification/offline_exf_seaice:
565      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
566    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
567      - add OpenAD setup to this exp and make ptracers package work with OpenAD
568    o pkg/seaice/seaice_evp.F:
569       mask the asymmetric contribution of the ice-ocean stress (when
570       the turningAngle is non-zero) over open water to avoid stripes
571       in the EVP-solutions after many EVP-substeps. This does not change
572       the verification experiment (because turningAngle=0 in that experiment),
573       but will affect other EVP solutions with turningAngle.ne.0
574    o verification, AD & TLM output:
575      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
576        additions and multiplications which affect results at machine truncation
577        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
578        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
579        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
580        digits of matching.
581    o pkg/seaice:
582       modify lsr-algorithm so that it vectorizes AND converges by using a
583       "zebra" method: split vector loop into two with step size 2; this
584       solves a general convergence problem for the JFNK solver on a vector
585       computer. It has the potential to even improve convergence for
586       non-vector machines, but it does change the results so it is turned
587       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
588       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
589    
590    checkpoint64e (2013/03/05)
591    o pkg/ecco and several verification experiments:
592       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
593       from ecco package, and revert to unified routine in model/src/
594       Adjust verification experiments accordingly, especially gloal_oce_llc90
595       Should conclude long-standing work by Gael to reconsile the_main_loop with
596       ECCO and will enable OpenAD's revolve loop in ECCO setup.
597    o pkg/generic_advdiff:
598      - implement compressible flow method for multi-dim advection (similar to
599        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
600        TAF generates many recomputations) to use it; no yet coded with implicit
601        vertical advection.
602      - change experiment advect_cs (new output) and advect_xy (same output)
603        to test compressible flow multi-dim advection.
604    o pkg/generic_advdiff:
605      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
606        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
607    o pkg/seaice:
608      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
609        bug affects two verification experiments (lab_sea and lab_sea.hb87),
610        recover old (wrong) results by setting noSlipFac = 2. in
611        seaice_calc_strainrates.F;
612      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
613      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
614        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
615      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
616    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
617      - new subroutines seaice_lsr_tridiagu/v
618      - introduce loop bounds i/jmin/max to be able to use a restricted
619        additive Schwarz method, but not used for now.
620      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
621      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
622    o OpenAD support
623       Reorganize S/R call for overall time-stepping loop to facilitate
624       OpenAD revolve loop replacement
625       (new S/R main_do_loop.F)
626    o model/src:
627      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
628      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
629        ADAMS_BASHFORTH2.
630    o pkg/cheapaml:
631      - add new parameter (default=F, same as before) to disable full domain
632        (including land) periodicity in X & Y dir.
633      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
634        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
635        into single S/R CHEAPAML_TIMESTEP.
636    
637    checkpoint64d (2013/02/17)
638    o pkg/monitor (angular momentum):
639      - do not add Eta contribution to the total AM if using rigid-lid;
640      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
641      - horizontal discretisation: compute Zonal wind contribution separately for
642        each component (instead of from cell centered averaged) and use the 4
643        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
644      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
645        FreeSurf) if using vectorInvariant momentum.
646    o model/src (horizontal grid):
647      - move initialisation of all horizontal grid arrays to null value
648        from specific horizontal grid S/R to main S/R INI_GRID;
649      - add 2 new arrays to project model C-grid velocity on to zonal direction
650        (similar to AngleCosC & -AngleSinC but at U and V point location) and
651        compute them in S/R CALC_GRID_ANGLES.
652    o pkg/seaice: replace a hard coded parameter by a runtime parameter
653        SEAICE_JFNK_tolIter
654    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
655        preconditioner for JFNK (run LSR into the overlaps as far as possible,
656        i.e OLx/y-2, but overwrite the solution in the overlaps)
657      - extend loop range in seaice_calc_viscosity
658      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
659      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
660      - slightly modify loops in tridiagonal solver lsr-preconditioner
661      - by default remove the extra exchange in seaice_preconditioner with a
662        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
663      - modify offline_exf_seaice so that old results without RAS are reproduced
664        for output.dyn_jfnk.txt
665      in seaice_fgmres.F (unrelated to RAS)
666      - add a cpp-flag option for a re-ordered mapping (potentially more
667        efficient), but because this changes the results, turn it off by
668        default
669      - replace the save statement by local common blocks
670    o utils/matlab:
671      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
672      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
673        instead of local script "load_cs.m".
674    o pkg/seaice:
675      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
676        to the scalarProductMetric and the unrolling. By chance this does not
677        change the verification experiment, because of the particular domain
678        decomposition
679    o pkg/diagnostics:
680      - change default missing_value from UNSET_RL to -999.
681    o pkg/layers: improve vectorization of layers_fluxcalc.F
682      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
683        time spent in this routine by more than a factor of 3 on an NEC-SX8
684      - step 2: replace search algorithm by a bisection algorithm found in
685        Press et al. Numerical Recipes in Fortran. This algorithm can be
686        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
687        For now, use this algorithm only for TARGET_NEC_SX defined.
688      - moved the search algorithm into a separate subroutine, that is kept
689        within the same file for automatic inlining.
690      - modified catching potential errors
691    o pkg/ecco:
692      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
693    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
694      - modifications for ALLOW_GENTIM2D_CONTROL
695      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
696      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
697      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
698      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
699    o model/src:
700      - account for moist thermodynamics in (dry) potential temperature equation;
701        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
702        and cpl_aim+ocn.
703      - also switch to standard compiler (gfortran, was using ifort previously)
704        for fizhi-cs experiments reference output.
705    o pkg/ctrl:
706      - 1st step toward generic time-varying control variable (2D) via CPP option
707        ALLOW_GENTIM2D_CONTROL
708      - note new namelist ctrl_nml_genarr in data.ctrl
709    o verification/global_ocean.cs32x15:
710      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
711        thsice calling sequence and update "output.icedyn.txt" output file.
712    o pkg/ptracers:
713      - from Ryan A.: code to allow to restart a tracer at regular time interval
714        specifying a reset frequency and a reset-phase (for each tracers).
715    o pkg/thsice:
716      - implement new sequence of calls for thsice+seaice:
717          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
718          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
719      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
720        in CPP_OPTIONS.h) to recover old sequence;
721      - update diagnostics for Intermediate State thsice diagnostics: now filled
722        just before advection (instead of just after advection in old sequence);
723      - update output of experiment offline_exf_seaice (standard test);
724      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
725        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
726    o pkg/aim_v23:
727      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
728      - use standard pkg/mdsio routines to read & write CO2 pickup file;
729      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
730      - Implement new sequence of calls for seaice advection (with thsice and
731        seaice diffusion): do ice advection after ice-Thermodynamic (previously
732        was done before); change aim_do_physics.F (split the bi,bj loops block);
733      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
734    o pkg/thsice:
735      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
736        where just seaice diffusion is used without seaice-dynamics.
737    
738    checkpoint64c (2013/01/18)
739    o pkg/seaice:
740      - add a parameter JFNKres_tFac that can replace JFNKres_t
741        (= JFNKres_tFac*JFNKresidual before JFNK solver)
742      - add a line search option to the JFNK solver
743      - move update of u/vIce and computation of initial residual into a separate
744        routine (same file); makes the code a little easier to read (?)
745      - the line search requires computation of the residual and for some reason
746        I cannot do the update of u/vIce at the beginning of the Newton loop
747        without changing the results, so we move computation of the new residual
748        also to the end of the Newton loop, even without the line search
749    o pkg/mdsio:
750      - write missing value (corresponding to undefined array value) to meta files;
751        skip this if missing value is one (UNSET_RL would be a better value for the
752        case of undefined missing value but it's current the default missing-value);
753        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
754    o pkg/exf & thsice:
755      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
756        diagnostics) even when SHORTWAVE_HEATING is #undef;
757    o verification/cfc_example:
758      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
759        illustrate how to use it).
760    o verification/offline_exf_seaice:
761      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
762        files to only one time-record.
763      in input.thermo: narrow the 2 bands of low initial ice-concentration near
764        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
765        snapshot output; same mcPheePiston value as in thsice with
766        surf-current=0.2m/s.
767      in input.thsice: similar set-up as in input.thermo (channel with same seaice
768        initial conditions).
769    o verification/cfc_example:
770      - update file "data" with more standard choice (default rotationPeriod,
771        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
772        set deltaTFreeSurf to deltaTtracer) and update the output.
773    o pkg/layers:
774      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
775      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
776    o verification/offline_exf_seaice:
777      - set all {field}period to zero for constant-in-time forcing (not tested
778        anywhere else).
779    o verification/offline_exf_seaice:
780      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
781      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
782    o model/src:
783      - implement Finite-Volume method for (hydrostatic) presure gradient
784        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
785    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
786      - In order to be compatible with the default EVP code, this requires changing
787        the EVP code around a little; and because any small change immediately
788        breaks the lab_sea.hb87 verification experiment, the reference output is
789        updated two times (each time the remaining aggrement was only 2 digits):
790        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
791        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
792        The adjoint test lab_sea.evp also needed to be updated.
793      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
794        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
795        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
796        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
797        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
798        kept obscure, because I need to test it a little more.
799    o pkg/cheapaml:
800      - fix few incorrect type (_RL/_RS) in subroutine calls.
801    o pkg/seaice:
802      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
803        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
804    o model/src:
805      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
806        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
807        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
808    o pkg/cheapaml:
809      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
810        update output of experiment cheapAML_box.
811      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
812        and set them only in one place (cheapaml_readparms.F).
813      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
814      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
815        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
816    o model/src/the_main_loop.F:
817      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
818    o pkg/seaice:
819      - remove legacy branch code.
820      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
821    o verification/*/code*/SEAICE_OPTIONS.h:
822      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
823        SEAICE_CAP_HEFF).
824    o pkg/cheapaml:
825      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
826        to load new forcing fields.
827      - add missing "_d 0" where it's needed; + some editing (improve indentation).
828      - remove switch to "-r8" compiler option (no longer needed) in verification
829        cheapAML_box, keep same output (small trucation error differences).
830    o verification/offline_exf_seaice:
831      - add thermodynamics only test.
832    o verification/cheapAML_box:
833      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
834        keep same output (same 14 digits for cg2d).
835      - switch on "-r8" compiler option (some numerical values are missing
836        the "_d 0") and update output (only 6 digits for cg2d were preserved).
837    
838    checkpoint64b (2012/12/24)
839    o pkg/cheapaml:
840      - remove un-used variables (Qnet,EmPmR) from pickup files.
841      - store tendency of advected variables into cheapaml pickup file
842        and fix the AB-2 restart.
843    o verification/offline_exf_seaice and lab_sea adjoint:
844      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
845      - switch to 4 time steps in offline, consistent with lab_sea.
846      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
847      - update results after change of experiment seaice.
848    o pkg/seaice:
849      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
850        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
851        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
852        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
853    o model/src:
854      - add run-time parameter to select CG2D solver minimum-residual solution
855        (in case of a poor convergence).
856    o pkg/seaice/seaice_lsr.F
857      - move calculation of matrix coefficients into new
858        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
859        file; the main purpose of this change is to be able to reuse the code
860        in S/R SEAICE_PRECONDITIONER
861      - modify the computation of the residual so that the mass of sea-ice
862        is not used twice; this simplifies the calculations, but since
863        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
864        not tested in testreport---this does not affect the testreport results.
865    o verification/seaice_obcs:
866      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
867        verification/lab_sea/input.salt_plume; changes results/output.txt*
868    o model/src:
869      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
870    o pkg/seaice:
871      - improve description of parameters in seaice_fgmres.F and start
872        cleaning up the code
873      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
874        second argument
875      - add a metric based on grid cell area to SEAICE_SCALPROD; update
876        results of offline_exf_seaice.dyn_jfnk
877      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
878    o pkg/aim_v23:
879      - fix an other bug in dissipation heating (grid-cell area was missing).
880    o model/src + pkg/seaice:
881      - add global (multi-tile) linear solver for pair of tri-diagonal system
882        along X and Y lines, respectively for U and V component.
883        Note: 1) MPI and cube-exchange not yet coded.
884            2) probably not accurate for poorly conditioned / large size problem.
885      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
886        default: not compiled and not used.
887    o pkg/seaice:
888      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
889        introduce bi/bj loops and use global_sum_tile_rl instead of
890        mpi_allreduce in seaice_fgmres.F
891      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
892      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
893      - add a verification experiment for JFNK in offline_exf_seaice
894    o verification:
895      - change (for now, only fwd test) offline_exf_seaice experiment:
896        use a re-entrant channel with idealized coastline (trapezoidal shape)
897        at southern boundary to explore seaice dynamics and thermodynamics
898        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
899        secondary test (input.thsice) use thermodynamics only with SST relaxation.
900      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
901    o pkg/exf:
902      - disable "sstExtrapol" when Nr=1
903    o verification:
904      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
905        to test pkg/cheapaml.
906    o pkg/aim_v23 & pkg/shap_filt:
907      - fix dissipation heating (erroneous gravity multiplication factor).
908    o pkg/seaice:
909      - remove unused field pressPre from jfnk solver
910      - rename two subroutines in seaice_preconditioner.F
911    o eesupp/src:
912       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
913    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
914       - remove wrong parts of the rhs and the lhs (were in there
915         because I did not understand the concept of this preconditioner)
916       - add an exchange between u- and v-sweep. This increases communication
917         by a factor of two but improves the convergence of jfnk. Ideally,
918         one would like the u- and v-sweep to be independent. So far within
919         undocumented ifdefs
920       - reorganize the extra computations for printing the residuals
921    o tools/genmake2:
922      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
923        since it's not necessary (and was preventing to use MNC in some cases).
924    
925    checkpoint64a (2012/11/16)
926    o pkg/autodiff:
927      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
928        autodiff_readparms.F no longer depends on calling order (within
929        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
930        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
931        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
932    o pkg/obcs:
933      - adding tidal velocity forcing capability to obcs
934        for usage example, see verification/seaice_obcs/input.tides
935    o pkg/seaice:
936      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
937        SEAICE_LSRrelaxU/V
938      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
939    o pkg/aim_v23:
940      - implement heating from friction (bottom friction and stratospheric drag).
941    o pkg/shap_filt:
942      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
943        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
944    o model/src:
945      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
946        time-constant addMass field from file (addMassFile);
947      - support for heating due to friction (and Kinetic Energy dissipation):
948        add option, run-time switch and 3-D field array + support code ; each pkg
949        or S/R can add heating contribution (if there is a sink of KE); the sum is
950        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
951    o pkg/seaice:
952      - complete merge of ITD code into seaice_growth.F
953        from MITgcm_contrib/torge/itd/code/
954        no verification so far, but Torge Martin tested
955        "1-D test case and Beaufort set up;
956        deliver okay results after 1 model year."
957      - complete merge of SEAICE_SIZE.h into all relevant routines
958      - move computation of eta at Z-points into calc_viscosities
959        + introduce global field etaZ
960        + add different methods for computing etaZ, for now the old
961          method (simple averages of eta to Z-points) is hardwired
962        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
963          seaice_preconditioner
964      - simplify computations for SEAICE_ZETA_SMOOTHREG
965      - seaice_preconditioner:
966        + replace one remaining press by pressLoc (mistake)
967        + adjust printing of residuals
968      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
969        + add (SEAICE.h) and rename some counters (initiliased in
970          seaice_init_fixed.F)
971        + add _BEGIN/END_MASTER (myThid)  around print statements
972        + print total number of iterations and failures over SEAICE_monFreq
973          interval to STDOUT
974      - move control over output-messages by fgmres to seaice_jfnk to save
975        some operations
976      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
977        in order to make restarts with sol .ne. zero (fgmres with restarts)
978        (seaice_jfnk.F, seaice_fgmres.F)
979      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
980        a serious convergence problem when open boundaries are involved
981    o pkg/ggl90: fix computation of control volumes for the case of
982      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
983      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
984    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
985    o pkg/autodiff
986      - Add inAdMode switch for SEAICEuseDYNAMICS:
987        SEAICEuseDYNAMICSinAdMode
988        (extend logic in ADAUTODIFF_INADMODE_SET)
989    o pkg/seaice
990      - Step 1 of merging ice-thickness distribution (ITD) code from
991        MITgcm_contrib/torge/itd/ (author: Torge Martin)
992        The code implements concept laid out in Thorndike et al. (1975);
993        code is enabled via CPP flag SEAICE_ITD
994        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
995        code is not complete yet!!
996      - SEAICE_SIZE.h now included in almost all seaice routines
997    o verification (using seaice):
998      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
999        global_ocean.cs32x15.seaice ; update results.
1000      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
1001      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
1002        offline_exf_seaice (previously compiling B-grid).
1003    o pkg/exf:
1004      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
1005        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
1006        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
1007    o pkg/layers (adjust changes from Sept 19):
1008      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
1009        this allows to remove "layers_maxNum" dimension from all layers arrays.
1010    o pkg/layers (adjust changes from Sept 19):
1011      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
1012      - snap-shot extended to all type of layers (not just the 1rst type);
1013      - remove layers variables when corresponding CPP option is undef.
1014    o pkg/layers:
1015      - rename pkg/layers variable and add new output (layer exist & un-weighted
1016        velocity in layer)
1017    o pkg/seaice:
1018      - simplify (?) ocean-drag coefficent computations by using
1019        the same routine in all three solvers (saves some code lines)
1020      - remove global fields DRAGA and DRAGS from C-grid code and
1021        declare them locally in lsr.F (the only place where they are
1022        still used)
1023      - update AD output of lab_sea.evp (very sensitive anyway).
1024    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
1025      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
1026      and SEAICEuseJFNK=.true. A few things to note:
1027      - involves a FGMRES, that is parallel but very inefficient,
1028        because of many scalar products (global sums) in the Gram-Schmidt
1029        orthogonalization method. Needs to be replaced. Original code
1030        from J.-F. Lemieux
1031      - preconditioner for FGMRES is a stripped down version of LSOR
1032      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
1033        preconditioner. For the preconditioner, the default is set to 10.
1034      - Jacobian times vector is computed with finite differences
1035      - marginally related to JFNK-solver: add a smooth regularization for
1036        zeta with tanh that will improve convergence (Lemieux and Tremblay,
1037        2009) for any implicit solver (not implemented for EVP because EVP
1038        does not need this regularization in the first place). Define
1039        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
1040    o eesupp/src:
1041      - check in genmake2 that intrinsic S/R flush is available.
1042      - add S/R to flush IO unit (if intrinsic S/R flush is available)
1043      - flush standard & error msg unit before MPI termination
1044      - if debugMode, flush IO unit after printing msg
1045    o pkg/ctrl:
1046      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
1047        to ctrl_set_unpack_xyz.
1048    
1049    checkpoint64 (2012/10/09)
1050    o pkg/shelfice
1051      - in mom_fluxform.F, mom_vecinv.F:
1052        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
1053        Bug fix KappaRU -> KappaRV
1054        does not change verification/isomip but may change other setups
1055        (presumably constant KappaRU=KappaRV)
1056      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
1057    o pkg/obcs:
1058      - fixed some indexing bugs in obcs_seaice_sponge.F
1059      - added obcs relaxation subroutines for HSALT and HSNOW
1060      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
1061  o pkg/seaice:  o pkg/seaice:
1062    - add "multicategory" parameterization for snow in analogy to ice,    - add "multicategory" parameterization for snow in analogy to ice,
1063      default is off for now.      default is off for now.

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