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revision 1.1744 by dimitri, Tue Sep 25 16:39:20 2012 UTC revision 1.1939 by jmc, Thu Nov 14 02:09:48 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 verification:
8      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
9        tutorial_global_oce_biogeo and global_ocean.90x40x15.
10      - generate new output (growth & melt) for seaice_itd experiment after
11        updating the input pickup_seaice files (previously wrong).
12    o pkg/cost:
13      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
14        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
15        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_TILE_RL
16          cannot be applied to var in common block).
17        o allows to get results independent of tile-per-proc setting (if using
18          slower GLOBAL_SUM_SEND_RECV option).
19      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
20        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
21        forward gradients: update output).
22      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
23        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
24    o pkg/mom_common:
25      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
26        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
27        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
28        ensure that all field value that are used are set.
29    o tutorial_deep_convection (smag3d):
30      - add missing scaling in mom_calc_smag_3d.F;
31      - set smag3D_coeff in input.smag3d such that results do not change.
32    o pkg/dic:
33      - change dic_cost.F to compute cost on each tile first and then apply
34        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
35        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
36      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
37    o eesupp/src & pkg/mdsio:
38      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
39        (from pkg/mdsio) since they are no longer used for tape IO.
40      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
41        (+ keep a copy in pkg/atm_ocn_coupler).
42    o verification/isomip:
43      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
44    o tools/build_options:
45      - optfile linux_amd64_ifort11, fast (no ieee) case:
46        to get a working restart for all experiments, add "-fp-model source"
47        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
48    
49    checkpoint64p (2013/10/20)
50    o pkg/autodiff:
51      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
52        criteria, return to simple (default) tape IO format.
53    o pkg/mdsio (+ eesupp/src):
54      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
55        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
56      - fix globalFile and singleCpuIO options using simpler global mapping.
57      - new pairs of scatter/gather vector S/R (one for each type, generated from
58        template) corresponding to simpler global mapping.
59      - adread_write.F: switch to new S/R (but leave old calls commented) and write
60        to globalFile when parameter globalFiles is set to True.
61      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
62    o pkg/autodiff:
63      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
64        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
65        missing, just add a STOP if array type do not match.
66    o pkg/exf:
67      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
68         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
69         and rename array obsSIce to exf_iceFraction.
70    o tutorial_deep_convection:
71      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
72        for now all in this exp. code dir.
73      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
74        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
75    o eesupp/src:
76      - added SINGLE_DISK_IO option because reading of parameter files on
77        very large number of processors did not work with existing set-up
78    
79    checkpoint64o (2013/09/25)
80    o pkg/atm_phys & atm_compon_interf:
81      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
82    o tools/build_options:
83      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
84        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
85        remove CPP setting (was identical to genmake2 default).
86    o pkg/gmredi & model/src: Some updating and work done on the residual model.
87      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
88      - fixed up the calculation of the eddy stress and how it is added to the
89        external forcing via taueddy_external_forcing.F
90      - at the moment, it is very experimental and only works with the variable eddy
91        diffusivity calculated in gmredi_k3d.F
92    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
93        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
94    o testreport (& tools/do_tst_2+2):
95      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
96    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
97      - remove CPP='cpp -traditional -P' (this is genmake2 default)
98      - add switch (for big setups) to use 'medium' memory-model (but leave it
99        commented out for now). Note: needed with FC 19 to compile big setups.
100    o pkg/atm_compon_interf:
101      - regroup per field origin (model & pkgs) the coupling storage routines
102         (which accumalate in time each coupling field)
103      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
104        update accordingly + simplify aim_do_physics.F
105    
106    checkpoint64n (2013/08/26)
107    o pkg/bbl:
108      - update formulation to reduce dispersion of tracer properties in bbl
109      - replaced horizontal and vertical transport parameters with velocities
110      - changes results for verification/global_with_exf.yearly
111    o verification/halfpipe_streamice:
112      - change to matrix construction; update both Fwd & AD output.
113    o verification/tutorial_tracer_adjsens:
114      - OpenAD test: switch to vector-invariant momentum since fluxform with
115        rStar causes problems with OpenAD; update output.
116    o tools:
117      - genmake2: define a common prefix for all temp-file names ; move them
118        to local /tmp disk (but would be easy to move them back);
119      - xmakedepend: apply the same switch for temp-files.
120    o pkg/offline:
121      - changes for use with rStar (NLFS): assume that we continue to provide
122        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
123        output files) and apply r* scaling at each time-step (function of the time
124        varying Eta field); use normal pickup files (needed for restart with NLFS).
125    o adjoint with OpenAD:
126      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
127        package openad.  This package has to be compiled for all runs with OpenAD
128        instead of specifying code_oad_all as a modification directory.
129      - link the fortran templates from tools/OAD_support to the build directory
130        for preprocessing to avoid conflicts between different setups compiled
131        simultaneously and simplify cleanup.
132    o pkg/exf:
133      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
134        main model or other pkgs are exchanged in EXF_MAPFIELDS).
135    o model/src:
136      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
137        (similar to do_fields_blocking_exchanges.F).
138    o tools/genmake2:
139      - remove TAF output src code just before calling staf (when not doing a fresh
140        built, will stop if things go wrong with staf).
141      - fix target "adobj" (left from TAF version-2 transition)
142    o pkg/diagnostics:
143      - add a parameter to track the status of pkg/diagnostics activation;
144        this replace/extend the use of logical param "settingDiags" (to check
145        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
146        New S/R to print error message and stop when pkgStatus is not right.
147      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
148    
149    checkpoint64m (2013/08/13)
150    o model/inc:
151      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
152        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
153    o pkg/kpp & aim_v23:
154      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
155    o pkg/seaice:
156      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
157        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
158      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
159    o eesupp/src:
160      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
161        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
162    o switch to TAF version-2:
163      - add flow directives to "freeze" naming convention for ad-routines that
164        are used in I/O routines of adjoint state and associated common blocks
165        that are used in adcommon.h (backward compatible with version-1)
166      - update all ad-optfiles (in tools/adjoint_options + few local to some
167        verification exp) to switch to latest TAF version (currently 2.5.5);
168        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
169        out except for diva).
170      - the major change with TAF version-2 is that both the differentiated
171        routines and the forward routines (new) are returned as part of the TAF
172        output source code. Update genmake2 accordingly.
173      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
174        with version-2 when compared to TLM or FWD gradient); other experiments
175        output show minor changes (machine truncation level); update the few AD &
176        TLM output with 12 matching digits only (some prior to version-2 switch).
177    
178    checkpoint64l (2013/08/05)
179    o model/src:
180      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
181      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
182        when using TAF but only if using OpenAD.
183    o pkg/mom_common+fluxform+vecinv:
184      - always set horiz. viscosity arrays to background value before calling
185        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
186        only when using variable horiz. viscosity (useVariableVisc=T);
187      - simplify mom_vecinv.F (only 1 block for momViscosity).
188    o pkg/mom_common: variable horiz. viscosity in NH code
189      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
190        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
191      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
192        useBiharmonicVisc & useVariableVisc.
193      - fix old bug (already in 1rst implementation of variable horizontal viscosity
194        in calc_gw.F, version 1.27, 2006/06/20):
195        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
196        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
197      - change background horiz viscosity in vertical momentum (gW) to always be
198        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
199        any type of variable viscosity, e.g., viscAh/4Grid)
200      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
201        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
202        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
203        default viscAh,viscA4 is zero).
204    o model/src:
205      - extend length of drC & recip_drC from Nr to Nr+1.
206    o Divided Adjoint (DIVA) with MPI:
207      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
208      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
209        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
210    
211    checkpoint64k (2013/07/23)
212    o tools/OAD_support:
213      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
214        and remove it from genmake2.
215    o tools/build_options:
216      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
217        MPI_HEADER_FILES list (let genmake2 find the missing headers)
218    o verification/halfpipe_streamice:
219      - change to driving stress formulation; update both Fwd & AD output.
220    o tools/genmake2 and Divided Adjoint with MPI:
221      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
222      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
223      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
224        Makefile, which is set by genmake2, and check which mpi-headers are needed.
225        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
226      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
227    o testreport:
228      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
229        perform additional runs (number of additional runs is "add_DIVA_runs" taken
230        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
231    o verification/lab_sea (AD test):
232      - change to test Divided Adjoint Run in this set-up (both standard AD test
233        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
234    o pkg atm_ & ocn_compon_interf:
235      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
236        staggerTimeStep implementation) and disable (retired) corresponding
237        parameter.
238    o pkg/offline:
239      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
240      - add S/R OFFLINE_CHECK to print offline parameter summary
241        and stop if loading a file that is not used;
242      - enable to calculate GMRedi tensor, KPP mixing and convective index
243        when the corresponding file(s) is/are not specified (but pkg is used).
244      - comment out resetting of monitorFreq (to endTime) since it still useful
245        for monitoring CFL numbers and checking offline fields.
246    o OpenAD:
247      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
248        smaller standard output) and generate new (smaller) output (on baudelaire
249        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
250    o model/src:
251      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
252        (where external_forcing_adjust was called) and change list of arguments;
253      - merge external_forcing_adjust.F into external_forcing_surf.F
254      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
255        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
256        previously in file "balance_relax.F", now removed); remove corresponding
257        arrays in FFIELDS.h.
258      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
259        a hack for getting back surfaceForcingS (loaded from file) when using
260        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
261      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
262        (was getting only 11 digits for AD-grad, due to different truncation
263         error in AD code).
264    
265    checkpoint64j (2013/07/04)
266    o pkg/offline:
267      - to enable the use of other features with pkg offline (e.g., obcs),
268        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
269      - comment out "allowFreezing" (now active) in 2 offline testing exp.
270    o pkg/exf ALLOW_RUNOFTEMP
271      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
272      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
273      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
274    o pkg/atm_phys:
275      - allows to add some damping on uVel,vVel (strength only function of k).
276    o verification, ad-tests:
277      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
278        global_ocean_ebm and offline_exf_seaice.thsice.
279    o verification/halfpipe_streamice:
280      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
281        flux input boundary conditions to be ignored; a fix for this bug changed
282        verification results for forward test.
283      - add adjoint test.
284    o pkg/ptracers:
285      - allow to restart without SOM pickup (resetting SOM to zero).
286    o pkg/gmredi:
287      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
288      - It uses mixing length theory and suppression by steering level effects to
289        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
290        to JPO, for more details).
291      - It also uses the diffusivity to calculate an eddy induced streamfunction
292        based on a PV closure (rather than a buoyancy closure as in GM).
293      - New files added to pkg/gmredi:
294        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
295          induced overturning streamfunction (called from gmredi_calc_tensor)
296        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
297          for use in gmredi_k3d
298        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
299          the eddy diffusivity
300    
301    checkpoint64i (2013/06/18)
302    o pkg/cheapaml:
303      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
304        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
305        with pkg/cheapaml.
306    o utils/python: add subpackage for cubed sphere function, first example is
307        simple cs.pcol to plot 2D fields on a map
308    o pkg/streamice:
309      - This is a new package in MITgcm, which solves dynamic equations for ice
310         sheets and ice streams
311      - At the moment it is independent of atmosphere/ocean dynamics, or any
312        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
313        ed that this will change)
314      - There is a new verification exercise that tests it, halfpipe_streamice,
315        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
316        rectangular embayment
317      - halfpipe_streamice is forward-only for now, will have TAF test soon
318      - for questions, email dgoldber@mit.edu
319    o pkg/thsice:
320      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
321        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
322      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
323         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
324      - allow precip from pkg/cheapaml to make snow over seaice.
325    o pkg/cfc:
326      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
327      - remove atmos CFC 2-D arrays from common bloc (now local variables)
328      - change some hard-coded constant to run time parameter for reading and
329        and interpolating atmospheric CFC ; keep same default as previously.
330      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
331      - put arguments in standard order: myTime, myIter, myThid
332      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
333        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
334      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
335      - new routine to print summary of CFC params and check for consistency.
336    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
337      similar to thsice_advdiff.
338      Note that for the B-grid case the routine parameters uc/vc are overwritten.
339    o pkg/cfc:
340      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
341        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
342      - fix interpolation of atmphspheric CFC between Sorthern and Northern
343        hemisphere value.
344    o pkg/seaice:
345      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
346    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
347                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
348      - requires an additional time level that is stored in the pickup
349      - you can start with AB2 from a pickup without this time level with
350        pickupStrictlyMatch = .false.
351    
352    checkpoint64h (2013/05/26)
353    o pkg/cheapaml:
354      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
355        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
356      - consistent treatment of uWind,vWind location: assume everywhere in
357        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
358        (Note: was already the case for Tair,Qair advection);
359        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
360      - compute diabatic forcing only in the interior (excluding overlap regions)
361      - fill in array "Qsw" (for short-wave heating);
362      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
363        before any update (consistent with MITgcm state var diagnostics);
364      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
365        non periodic ; + adjusted for uWind,vWind (C-grid).
366    o pkg/seaice:
367      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
368        add explicitly pkg/exf in experiments that currently use pkg/seaice.
369      - allows to compile pkg/seaice without pkg/exf.
370    o tools/OAD_support:
371      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
372        of array "ourStepOf" in function rvNextAction (revolve.F90).
373    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
374      - change pkg name (to be used with other atmospheric physics pkg)
375        but by-pass CVS when making the new pkg so that we keep the CVS history.
376    o pkg/offline:
377      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
378        (previously called from pkg/dic_surfforcing_init.F)
379    o model/src:
380      - re-order sequence of calls within packages_init_variables.F, using
381        standard order, except for:
382         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
383         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
384    o new pkg: atm_phys
385      - add entry point and source code (previously in contrib
386          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
387        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
388      - re-order sequence of calls within packages_readparms.F,
389         packages_init_fixed.F and packages_write_pickup.F
390        (but skip packages_init_variables.F because of TAF issues).
391      - update contrib/*/atm_gray/ experiment.
392    o pkg/seaice (ITD code):
393      - simplify and fix the writing of pickup-files for ITD case
394    o pkg/seaice (ITD code):
395      - introduce floe size dependent lateral melt for ITD case;
396      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
397      - update seaice_itd experiment main output.
398    o pkg/thsice:
399      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
400        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
401        changed accordingly pkg/atm2d.
402    
403    checkpoint64g (2013/05/01)
404    o pkg/exf ALLOW_RUNOFTEMP
405      - if defined,  river and glacier runoff temperature can be read-in from
406        runoftempfile; runoftempfile needs to have same format as runofffile
407    o pkg/thsice (& pkg/bulk_force):
408      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
409        for energy content of Precip + RunOff & Evap (like with pkg/exf).
410      - change computation domain to always be the interior (without overlap).
411      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
412    o verification/tutorial_global_oce_biogeo:
413      - add preliminary OpenAD setup (still has problems)
414    o pkg/seaice:
415      - turn some parameters for choosing the convergence criterion of
416        the inexact Newton method (JFNK) into runtime parameters for convenience
417      - clean up seaice_calc_viscosities.F: remove/retire two options for
418        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
419        the results of lab_sea/input because a division has been replaced by
420        a multiplication with the reciprocal (sumNorm)
421      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
422        convergence of solver (changes results, of course), and to test some
423        new features
424    o model/src:
425      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
426      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
427      - move forcing adjustment (balancing surface forcing) in specific S/R
428        where might also be applied exchanges (if needed) to forcing arrays.
429    o pkg/shelfice:
430      - allow to specify the Ice-Shelf mass per unit area (instead of
431        shelficeLoadAnomaly) and do the conversion from one to the other
432      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
433        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
434        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
435        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
436      - update isomip experiment forward output (get machine truncation error
437        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
438    o verification/offline_exf_seaice:
439      revise data.seaice in input.thermo and input_ad and update results accordingly
440        HO = 0.2, SEAICE_areaLossFormula = 2,
441        SEAICE_growMeltByConv = .TRUE.,
442        SEAICE_doOpenWaterMelt = .TRUE.,
443      Improve consistency with input.thsice and fix the spurious 500m ice corners
444    o verification/global_ocean.cs32x15:
445      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
446        in icedyn (thsice+seaice-dyn) test and update output.
447    o verification/offline_exf_seaice:
448      - adjust list of tested variables (with testreport) and update
449        standard test output with better slection of monitored fields.
450    o pkg/cd_code:
451      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
452        experiment lab_sea.hb87
453    o tools/genmake2:
454      - change default makedepend from the system default to tools/xmakedepend:
455        When no makedepend is specified, select tools/xmakedepend it the test pass,
456        otherwise select the system default (if exist and pass the test) or
457        try to build cyrus-makedepend ; stop if none of the 3 works.
458    o pkg/exf & pkg/thsice:
459      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
460        for energy content of Precip + RunOff & Evap. Assumes:
461       1) Rain has same temp as Air.
462       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
463       3) Run-Off comes at the temp of surface water (with same Cp)
464       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
465        put directly into Latent Heat flux & should use water-vapor heat capacity.
466       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
467        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
468    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
469        (compile when SEAICE_ALLOW_JFNK is defined)
470    o pkg/thsice:
471      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
472        implementation): move THSICE_AVE call after the advection (called directly
473        from thsice_do_advect.F).
474    o verification/global_ocean.90x40x15 and OpenAD:
475      New experiment for OpenAD is identical to the one in input_ad except that
476        multiDimAdvection=.FALSE.,
477      There is still an issue with this.
478    o pkg/thsice:
479      - account for ice velocity (ocean relative velocity) in turbulent heat flux
480        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
481        and offline_exf_seaice (main test).
482    
483    checkpoint64f (2013/03/31)
484    o verification/OpenAD:
485      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
486    o verification/isomip, pkg/shelfice and OpenAD:
487      - add OpenAD setup to this exp and make shelfice package work with OpenAD
488    o verification/tutorial_global_oce_biogeo:
489      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
490    o verification/offline_exf_seaice:
491      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
492    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
493      - add OpenAD setup to this exp and make ptracers package work with OpenAD
494    o pkg/seaice/seaice_evp.F:
495       mask the asymmetric contribution of the ice-ocean stress (when
496       the turningAngle is non-zero) over open water to avoid stripes
497       in the EVP-solutions after many EVP-substeps. This does not change
498       the verification experiment (because turningAngle=0 in that experiment),
499       but will affect other EVP solutions with turningAngle.ne.0
500    o verification, AD & TLM output:
501      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
502        additions and multiplications which affect results at machine truncation
503        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
504        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
505        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
506        digits of matching.
507    o pkg/seaice:
508       modify lsr-algorithm so that it vectorizes AND converges by using a
509       "zebra" method: split vector loop into two with step size 2; this
510       solves a general convergence problem for the JFNK solver on a vector
511       computer. It has the potential to even improve convergence for
512       non-vector machines, but it does change the results so it is turned
513       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
514       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
515    
516    checkpoint64e (2013/03/05)
517    o pkg/ecco and several verification experiments:
518       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
519       from ecco package, and revert to unified routine in model/src/
520       Adjust verification experiments accordingly, especially gloal_oce_llc90
521       Should conclude long-standing work by Gael to reconsile the_main_loop with
522       ECCO and will enable OpenAD's revolve loop in ECCO setup.
523    o pkg/generic_advdiff:
524      - implement compressible flow method for multi-dim advection (similar to
525        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
526        TAF generates many recomputations) to use it; no yet coded with implicit
527        vertical advection.
528      - change experiment advect_cs (new output) and advect_xy (same output)
529        to test compressible flow multi-dim advection.
530    o pkg/generic_advdiff:
531      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
532        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
533    o pkg/seaice:
534      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
535        bug affects two verification experiments (lab_sea and lab_sea.hb87),
536        recover old (wrong) results by setting noSlipFac = 2. in
537        seaice_calc_strainrates.F;
538      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
539      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
540        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
541      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
542    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
543      - new subroutines seaice_lsr_tridiagu/v
544      - introduce loop bounds i/jmin/max to be able to use a restricted
545        additive Schwarz method, but not used for now.
546      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
547      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
548    o OpenAD support
549       Reorganize S/R call for overall time-stepping loop to facilitate
550       OpenAD revolve loop replacement
551       (new S/R main_do_loop.F)
552    o model/src:
553      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
554      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
555        ADAMS_BASHFORTH2.
556    o pkg/cheapaml:
557      - add new parameter (default=F, same as before) to disable full domain
558        (including land) periodicity in X & Y dir.
559      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
560        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
561        into single S/R CHEAPAML_TIMESTEP.
562    
563    checkpoint64d (2013/02/17)
564    o pkg/monitor (angular momentum):
565      - do not add Eta contribution to the total AM if using rigid-lid;
566      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
567      - horizontal discretisation: compute Zonal wind contribution separately for
568        each component (instead of from cell centered averaged) and use the 4
569        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
570      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
571        FreeSurf) if using vectorInvariant momentum.
572    o model/src (horizontal grid):
573      - move initialisation of all horizontal grid arrays to null value
574        from specific horizontal grid S/R to main S/R INI_GRID;
575      - add 2 new arrays to project model C-grid velocity on to zonal direction
576        (similar to AngleCosC & -AngleSinC but at U and V point location) and
577        compute them in S/R CALC_GRID_ANGLES.
578    o pkg/seaice: replace a hard coded parameter by a runtime parameter
579        SEAICE_JFNK_tolIter
580    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
581        preconditioner for JFNK (run LSR into the overlaps as far as possible,
582        i.e OLx/y-2, but overwrite the solution in the overlaps)
583      - extend loop range in seaice_calc_viscosity
584      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
585      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
586      - slightly modify loops in tridiagonal solver lsr-preconditioner
587      - by default remove the extra exchange in seaice_preconditioner with a
588        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
589      - modify offline_exf_seaice so that old results without RAS are reproduced
590        for output.dyn_jfnk.txt
591      in seaice_fgmres.F (unrelated to RAS)
592      - add a cpp-flag option for a re-ordered mapping (potentially more
593        efficient), but because this changes the results, turn it off by
594        default
595      - replace the save statement by local common blocks
596    o utils/matlab:
597      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
598      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
599        instead of local script "load_cs.m".
600    o pkg/seaice:
601      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
602        to the scalarProductMetric and the unrolling. By chance this does not
603        change the verification experiment, because of the particular domain
604        decomposition
605    o pkg/diagnostics:
606      - change default missing_value from UNSET_RL to -999.
607    o pkg/layers: improve vectorization of layers_fluxcalc.F
608      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
609        time spent in this routine by more than a factor of 3 on an NEC-SX8
610      - step 2: replace search algorithm by a bisection algorithm found in
611        Press et al. Numerical Recipes in Fortran. This algorithm can be
612        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
613        For now, use this algorithm only for TARGET_NEC_SX defined.
614      - moved the search algorithm into a separate subroutine, that is kept
615        within the same file for automatic inlining.
616      - modified catching potential errors
617    o pkg/ecco:
618      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
619    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
620      - modifications for ALLOW_GENTIM2D_CONTROL
621      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
622      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
623      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
624      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
625    o model/src:
626      - account for moist thermodynamics in (dry) potential temperature equation;
627        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
628        and cpl_aim+ocn.
629      - also switch to standard compiler (gfortran, was using ifort previously)
630        for fizhi-cs experiments reference output.
631    o pkg/ctrl:
632      - 1st step toward generic time-varying control variable (2D) via CPP option
633        ALLOW_GENTIM2D_CONTROL
634      - note new namelist ctrl_nml_genarr in data.ctrl
635    o verification/global_ocean.cs32x15:
636      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
637        thsice calling sequence and update "output.icedyn.txt" output file.
638    o pkg/ptracers:
639      - from Ryan A.: code to allow to restart a tracer at regular time interval
640        specifying a reset frequency and a reset-phase (for each tracers).
641    o pkg/thsice:
642      - implement new sequence of calls for thsice+seaice:
643          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
644          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
645      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
646        in CPP_OPTIONS.h) to recover old sequence;
647      - update diagnostics for Intermediate State thsice diagnostics: now filled
648        just before advection (instead of just after advection in old sequence);
649      - update output of experiment offline_exf_seaice (standard test);
650      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
651        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
652    o pkg/aim_v23:
653      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
654      - use standard pkg/mdsio routines to read & write CO2 pickup file;
655      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
656      - Implement new sequence of calls for seaice advection (with thsice and
657        seaice diffusion): do ice advection after ice-Thermodynamic (previously
658        was done before); change aim_do_physics.F (split the bi,bj loops block);
659      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
660    o pkg/thsice:
661      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
662        where just seaice diffusion is used without seaice-dynamics.
663    
664    checkpoint64c (2013/01/18)
665    o pkg/seaice:
666      - add a parameter JFNKres_tFac that can replace JFNKres_t
667        (= JFNKres_tFac*JFNKresidual before JFNK solver)
668      - add a line search option to the JFNK solver
669      - move update of u/vIce and computation of initial residual into a separate
670        routine (same file); makes the code a little easier to read (?)
671      - the line search requires computation of the residual and for some reason
672        I cannot do the update of u/vIce at the beginning of the Newton loop
673        without changing the results, so we move computation of the new residual
674        also to the end of the Newton loop, even without the line search
675    o pkg/mdsio:
676      - write missing value (corresponding to undefined array value) to meta files;
677        skip this if missing value is one (UNSET_RL would be a better value for the
678        case of undefined missing value but it's current the default missing-value);
679        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
680    o pkg/exf & thsice:
681      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
682        diagnostics) even when SHORTWAVE_HEATING is #undef;
683    o verification/cfc_example:
684      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
685        illustrate how to use it).
686    o verification/offline_exf_seaice:
687      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
688        files to only one time-record.
689      in input.thermo: narrow the 2 bands of low initial ice-concentration near
690        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
691        snapshot output; same mcPheePiston value as in thsice with
692        surf-current=0.2m/s.
693      in input.thsice: similar set-up as in input.thermo (channel with same seaice
694        initial conditions).
695    o verification/cfc_example:
696      - update file "data" with more standard choice (default rotationPeriod,
697        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
698        set deltaTFreeSurf to deltaTtracer) and update the output.
699    o pkg/layers:
700      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
701      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
702    o verification/offline_exf_seaice:
703      - set all {field}period to zero for constant-in-time forcing (not tested
704        anywhere else).
705    o verification/offline_exf_seaice:
706      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
707      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
708    o model/src:
709      - implement Finite-Volume method for (hydrostatic) presure gradient
710        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
711    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
712      - In order to be compatible with the default EVP code, this requires changing
713        the EVP code around a little; and because any small change immediately
714        breaks the lab_sea.hb87 verification experiment, the reference output is
715        updated two times (each time the remaining aggrement was only 2 digits):
716        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
717        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
718        The adjoint test lab_sea.evp also needed to be updated.
719      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
720        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
721        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
722        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
723        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
724        kept obscure, because I need to test it a little more.
725    o pkg/cheapaml:
726      - fix few incorrect type (_RL/_RS) in subroutine calls.
727    o pkg/seaice:
728      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
729        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
730    o model/src:
731      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
732        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
733        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
734    o pkg/cheapaml:
735      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
736        update output of experiment cheapAML_box.
737      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
738        and set them only in one place (cheapaml_readparms.F).
739      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
740      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
741        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
742    o model/src/the_main_loop.F:
743      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
744    o pkg/seaice:
745      - remove legacy branch code.
746      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
747    o verification/*/code*/SEAICE_OPTIONS.h:
748      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
749        SEAICE_CAP_HEFF).
750    o pkg/cheapaml:
751      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
752        to load new forcing fields.
753      - add missing "_d 0" where it's needed; + some editing (improve indentation).
754      - remove switch to "-r8" compiler option (no longer needed) in verification
755        cheapAML_box, keep same output (small trucation error differences).
756    o verification/offline_exf_seaice:
757      - add thermodynamics only test.
758    o verification/cheapAML_box:
759      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
760        keep same output (same 14 digits for cg2d).
761      - switch on "-r8" compiler option (some numerical values are missing
762        the "_d 0") and update output (only 6 digits for cg2d were preserved).
763    
764    checkpoint64b (2012/12/24)
765    o pkg/cheapaml:
766      - remove un-used variables (Qnet,EmPmR) from pickup files.
767      - store tendency of advected variables into cheapaml pickup file
768        and fix the AB-2 restart.
769    o verification/offline_exf_seaice and lab_sea adjoint:
770      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
771      - switch to 4 time steps in offline, consistent with lab_sea.
772      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
773      - update results after change of experiment seaice.
774    o pkg/seaice:
775      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
776        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
777        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
778        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
779    o model/src:
780      - add run-time parameter to select CG2D solver minimum-residual solution
781        (in case of a poor convergence).
782    o pkg/seaice/seaice_lsr.F
783      - move calculation of matrix coefficients into new
784        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
785        file; the main purpose of this change is to be able to reuse the code
786        in S/R SEAICE_PRECONDITIONER
787      - modify the computation of the residual so that the mass of sea-ice
788        is not used twice; this simplifies the calculations, but since
789        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
790        not tested in testreport---this does not affect the testreport results.
791    o verification/seaice_obcs:
792      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
793        verification/lab_sea/input.salt_plume; changes results/output.txt*
794    o model/src:
795      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
796    o pkg/seaice:
797      - improve description of parameters in seaice_fgmres.F and start
798        cleaning up the code
799      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
800        second argument
801      - add a metric based on grid cell area to SEAICE_SCALPROD; update
802        results of offline_exf_seaice.dyn_jfnk
803      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
804    o pkg/aim_v23:
805      - fix an other bug in dissipation heating (grid-cell area was missing).
806    o model/src + pkg/seaice:
807      - add global (multi-tile) linear solver for pair of tri-diagonal system
808        along X and Y lines, respectively for U and V component.
809        Note: 1) MPI and cube-exchange not yet coded.
810            2) probably not accurate for poorly conditioned / large size problem.
811      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
812        default: not compiled and not used.
813    o pkg/seaice:
814      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
815        introduce bi/bj loops and use global_sum_tile_rl instead of
816        mpi_allreduce in seaice_fgmres.F
817      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
818      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
819      - add a verification experiment for JFNK in offline_exf_seaice
820    o verification:
821      - change (for now, only fwd test) offline_exf_seaice experiment:
822        use a re-entrant channel with idealized coastline (trapezoidal shape)
823        at southern boundary to explore seaice dynamics and thermodynamics
824        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
825        secondary test (input.thsice) use thermodynamics only with SST relaxation.
826      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
827    o pkg/exf:
828      - disable "sstExtrapol" when Nr=1
829    o verification:
830      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
831        to test pkg/cheapaml.
832    o pkg/aim_v23 & pkg/shap_filt:
833      - fix dissipation heating (erroneous gravity multiplication factor).
834    o pkg/seaice:
835      - remove unused field pressPre from jfnk solver
836      - rename two subroutines in seaice_preconditioner.F
837    o eesupp/src:
838       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
839    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
840       - remove wrong parts of the rhs and the lhs (were in there
841         because I did not understand the concept of this preconditioner)
842       - add an exchange between u- and v-sweep. This increases communication
843         by a factor of two but improves the convergence of jfnk. Ideally,
844         one would like the u- and v-sweep to be independent. So far within
845         undocumented ifdefs
846       - reorganize the extra computations for printing the residuals
847    o tools/genmake2:
848      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
849        since it's not necessary (and was preventing to use MNC in some cases).
850    
851    checkpoint64a (2012/11/16)
852    o pkg/autodiff:
853      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
854        autodiff_readparms.F no longer depends on calling order (within
855        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
856        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
857        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
858    o pkg/obcs:
859      - adding tidal velocity forcing capability to obcs
860        for usage example, see verification/seaice_obcs/input.tides
861    o pkg/seaice:
862      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
863        SEAICE_LSRrelaxU/V
864      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
865    o pkg/aim_v23:
866      - implement heating from friction (bottom friction and stratospheric drag).
867    o pkg/shap_filt:
868      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
869        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
870    o model/src:
871      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
872        time-constant addMass field from file (addMassFile);
873      - support for heating due to friction (and Kinetic Energy dissipation):
874        add option, run-time switch and 3-D field array + support code ; each pkg
875        or S/R can add heating contribution (if there is a sink of KE); the sum is
876        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
877    o pkg/seaice:
878      - complete merge of ITD code into seaice_growth.F
879        from MITgcm_contrib/torge/itd/code/
880        no verification so far, but Torge Martin tested
881        "1-D test case and Beaufort set up;
882        deliver okay results after 1 model year."
883      - complete merge of SEAICE_SIZE.h into all relevant routines
884      - move computation of eta at Z-points into calc_viscosities
885        + introduce global field etaZ
886        + add different methods for computing etaZ, for now the old
887          method (simple averages of eta to Z-points) is hardwired
888        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
889          seaice_preconditioner
890      - simplify computations for SEAICE_ZETA_SMOOTHREG
891      - seaice_preconditioner:
892        + replace one remaining press by pressLoc (mistake)
893        + adjust printing of residuals
894      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
895        + add (SEAICE.h) and rename some counters (initiliased in
896          seaice_init_fixed.F)
897        + add _BEGIN/END_MASTER (myThid)  around print statements
898        + print total number of iterations and failures over SEAICE_monFreq
899          interval to STDOUT
900      - move control over output-messages by fgmres to seaice_jfnk to save
901        some operations
902      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
903        in order to make restarts with sol .ne. zero (fgmres with restarts)
904        (seaice_jfnk.F, seaice_fgmres.F)
905      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
906        a serious convergence problem when open boundaries are involved
907    o pkg/ggl90: fix computation of control volumes for the case of
908      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
909      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
910    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
911    o pkg/autodiff
912      - Add inAdMode switch for SEAICEuseDYNAMICS:
913        SEAICEuseDYNAMICSinAdMode
914        (extend logic in ADAUTODIFF_INADMODE_SET)
915    o pkg/seaice
916      - Step 1 of merging ice-thickness distribution (ITD) code from
917        MITgcm_contrib/torge/itd/ (author: Torge Martin)
918        The code implements concept laid out in Thorndike et al. (1975);
919        code is enabled via CPP flag SEAICE_ITD
920        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
921        code is not complete yet!!
922      - SEAICE_SIZE.h now included in almost all seaice routines
923    o verification (using seaice):
924      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
925        global_ocean.cs32x15.seaice ; update results.
926      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
927      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
928        offline_exf_seaice (previously compiling B-grid).
929    o pkg/exf:
930      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
931        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
932        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
933    o pkg/layers (adjust changes from Sept 19):
934      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
935        this allows to remove "layers_maxNum" dimension from all layers arrays.
936    o pkg/layers (adjust changes from Sept 19):
937      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
938      - snap-shot extended to all type of layers (not just the 1rst type);
939      - remove layers variables when corresponding CPP option is undef.
940    o pkg/layers:
941      - rename pkg/layers variable and add new output (layer exist & un-weighted
942        velocity in layer)
943    o pkg/seaice:
944      - simplify (?) ocean-drag coefficent computations by using
945        the same routine in all three solvers (saves some code lines)
946      - remove global fields DRAGA and DRAGS from C-grid code and
947        declare them locally in lsr.F (the only place where they are
948        still used)
949      - update AD output of lab_sea.evp (very sensitive anyway).
950    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
951      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
952      and SEAICEuseJFNK=.true. A few things to note:
953      - involves a FGMRES, that is parallel but very inefficient,
954        because of many scalar products (global sums) in the Gram-Schmidt
955        orthogonalization method. Needs to be replaced. Original code
956        from J.-F. Lemieux
957      - preconditioner for FGMRES is a stripped down version of LSOR
958      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
959        preconditioner. For the preconditioner, the default is set to 10.
960      - Jacobian times vector is computed with finite differences
961      - marginally related to JFNK-solver: add a smooth regularization for
962        zeta with tanh that will improve convergence (Lemieux and Tremblay,
963        2009) for any implicit solver (not implemented for EVP because EVP
964        does not need this regularization in the first place). Define
965        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
966    o eesupp/src:
967      - check in genmake2 that intrinsic S/R flush is available.
968      - add S/R to flush IO unit (if intrinsic S/R flush is available)
969      - flush standard & error msg unit before MPI termination
970      - if debugMode, flush IO unit after printing msg
971    o pkg/ctrl:
972      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
973        to ctrl_set_unpack_xyz.
974    
975    checkpoint64 (2012/10/09)
976    o pkg/shelfice
977      - in mom_fluxform.F, mom_vecinv.F:
978        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
979        Bug fix KappaRU -> KappaRV
980        does not change verification/isomip but may change other setups
981        (presumably constant KappaRU=KappaRV)
982      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
983  o pkg/obcs:  o pkg/obcs:
984    - fixed some indexing bugs in obcs_seaice_sponge.F    - fixed some indexing bugs in obcs_seaice_sponge.F
985    - added obcs relaxation subroutines for HSALT and HSNOW    - added obcs relaxation subroutines for HSALT and HSNOW

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