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revision 1.1815 by heimbach, Sat Jan 26 14:52:11 2013 UTC revision 1.1915 by jmc, Thu Aug 22 01:20:58 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/ctrl  o tools:
8      - genmake2: define a common prefix for all temp-file names ; allow to move
9        them to local /tmp disc (but commented out for now);
10      - xmakedepend: add the same switch for temp-files (but commented out).
11    o pkg/offline:
12      - changes for usewith rStar (NLFS): assume that we continue to provide
13        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
14        output files) and apply r* scaling at each time-step (function of the time
15        varying Eta field); use normal pickup files (needed for restart with NLFS).
16    o adjoint with OpenAD:
17      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
18        package openad.  This package has to be compiled for all runs with OpenAD
19        instead of specifying code_oad_all as a modification directory.
20      - link the fortran templates from tools/OAD_support to the build directory
21        for preprocessing to avoid conflicts between different setups compiled
22        simultaneously and simplify cleanup.
23    o pkg/exf:
24      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
25        main model or other pkgs are exchanged in EXF_MAPFIELDS).
26    o model/src:
27      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
28        (similar to do_fields_blocking_exchanges.F).
29    o tools/genmake2:
30      - remove TAF output src code just before calling staf (when not doing a fresh
31        built, will stop if things go wrong with staf).
32      - fix target "adobj" (left from TAF version-2 transition)
33    o pkg/diagnostics:
34      - add a parameter to track the status of pkg/diagnostics activation;
35        this replace/extend the use of logical param "settingDiags" (to check
36        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
37        New S/R to print error message and stop when pkgStatus is not right.
38      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
39    
40    checkpoint64m (2013/08/13)
41    o model/inc:
42      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
43        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
44    o pkg/kpp & aim_v23:
45      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
46    o pkg/seaice:
47      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
48        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
49      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
50    o eesupp/src:
51      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
52        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
53    o switch to TAF version-2:
54      - add flow directives to "freeze" naming convention for ad-routines that
55        are used in I/O routines of adjoint state and associated common blocks
56        that are used in adcommon.h (backward compatible with version-1)
57      - update all ad-optfiles (in tools/adjoint_options + few local to some
58        verification exp) to switch to latest TAF version (currently 2.5.5);
59        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
60        out except for diva).
61      - the major change with TAF version-2 is that both the differentiated
62        routines and the forward routines (new) are returned as part of the TAF
63        output source code. Update genmake2 accordingly.
64      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
65        with version-2 when compared to TLM or FWD gradient); other experiments
66        output show minor changes (machine truncation level); update the few AD &
67        TLM output with 12 matching digits only (some prior to version-2 switch).
68    
69    checkpoint64l (2013/08/05)
70    o model/src:
71      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
72      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
73        when using TAF but only if using OpenAD.
74    o pkg/mom_common+fluxform+vecinv:
75      - always set horiz. viscosity arrays to background value before calling
76        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
77        only when using variable horiz. viscosity (useVariableVisc=T);
78      - simplify mom_vecinv.F (only 1 block for momViscosity).
79    o pkg/mom_common: variable horiz. viscosity in NH code
80      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
81        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
82      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
83        useBiharmonicVisc & useVariableVisc.
84      - fix old bug (already in 1rst implementation of variable horizontal viscosity
85        in calc_gw.F, version 1.27, 2006/06/20):
86        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
87        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
88      - change background horiz viscosity in vertical momentum (gW) to always be
89        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
90        any type of variable viscosity, e.g., viscAh/4Grid)
91      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
92        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
93        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
94        default viscAh,viscA4 is zero).
95    o model/src:
96      - extend length of drC & recip_drC from Nr to Nr+1.
97    o Divided Adjoint (DIVA) with MPI:
98      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
99      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
100        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
101    
102    checkpoint64k (2013/07/23)
103    o tools/OAD_support:
104      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
105        and remove it from genmake2.
106    o tools/build_options:
107      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
108        MPI_HEADER_FILES list (let genmake2 find the missing headers)
109    o verification/halfpipe_streamice:
110      - change to driving stress formulation; update both Fwd & AD output.
111    o tools/genmake2 and Divided Adjoint with MPI:
112      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
113      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
114      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
115        Makefile, which is set by genmake2, and check which mpi-headers are needed.
116        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
117      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
118    o testreport:
119      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
120        perform additional runs (number of additional runs is "add_DIVA_runs" taken
121        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
122    o verification/lab_sea (AD test):
123      - change to test Divided Adjoint Run in this set-up (both standard AD test
124        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
125    o pkg atm_ & ocn_compon_interf:
126      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
127        staggerTimeStep implementation) and disable (retired) corresponding
128        parameter.
129    o pkg/offline:
130      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
131      - add S/R OFFLINE_CHECK to print offline parameter summary
132        and stop if loading a file that is not used;
133      - enable to calculate GMRedi tensor, KPP mixing and convective index
134        when the corresponding file(s) is/are not specified (but pkg is used).
135      - comment out resetting of monitorFreq (to endTime) since it still useful
136        for monitoring CFL numbers and checking offline fields.
137    o OpenAD:
138      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
139        smaller standard output) and generate new (smaller) output (on baudelaire
140        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
141    o model/src:
142      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
143        (where external_forcing_adjust was called) and change list of arguments;
144      - merge external_forcing_adjust.F into external_forcing_surf.F
145      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
146        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
147        previously in file "balance_relax.F", now removed); remove corresponding
148        arrays in FFIELDS.h.
149      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
150        a hack for getting back surfaceForcingS (loaded from file) when using
151        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
152      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
153        (was getting only 11 digits for AD-grad, due to different truncation
154         error in AD code).
155    
156    checkpoint64j (2013/07/04)
157    o pkg/offline:
158      - to enable the use of other features with pkg offline (e.g., obcs),
159        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
160      - comment out "allowFreezing" (now active) in 2 offline testing exp.
161    o pkg/exf ALLOW_RUNOFTEMP
162      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
163      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
164      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
165    o pkg/atm_phys:
166      - allows to add some damping on uVel,vVel (strength only function of k).
167    o verification, ad-tests:
168      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
169        global_ocean_ebm and offline_exf_seaice.thsice.
170    o verification/halfpipe_streamice:
171      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
172        flux input boundary conditions to be ignored; a fix for this bug changed
173        verification results for forward test.
174      - add adjoint test.
175    o pkg/ptracers:
176      - allow to restart without SOM pickup (resetting SOM to zero).
177    o pkg/gmredi:
178      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
179      - It uses mixing length theory and suppression by steering level effects to
180        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
181        to JPO, for more details).
182      - It also uses the diffusivity to calculate an eddy induced streamfunction
183        based on a PV closure (rather than a buoyancy closure as in GM).
184      - New files added to pkg/gmredi:
185        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
186          induced overturning streamfunction (called from gmredi_calc_tensor)
187        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
188          for use in gmredi_k3d
189        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
190          the eddy diffusivity
191    
192    checkpoint64i (2013/06/18)
193    o pkg/cheapaml:
194      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
195        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
196        with pkg/cheapaml.
197    o utils/python: add subpackage for cubed sphere function, first example is
198        simple cs.pcol to plot 2D fields on a map
199    o pkg/streamice:
200      - This is a new package in MITgcm, which solves dynamic equations for ice
201         sheets and ice streams
202      - At the moment it is independent of atmosphere/ocean dynamics, or any
203        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
204        ed that this will change)
205      - There is a new verification exercise that tests it, halfpipe_streamice,
206        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
207        rectangular embayment
208      - halfpipe_streamice is forward-only for now, will have TAF test soon
209      - for questions, email dgoldber@mit.edu
210    o pkg/thsice:
211      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
212        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
213      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
214         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
215      - allow precip from pkg/cheapaml to make snow over seaice.
216    o pkg/cfc:
217      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
218      - remove atmos CFC 2-D arrays from common bloc (now local variables)
219      - change some hard-coded constant to run time parameter for reading and
220        and interpolating atmospheric CFC ; keep same default as previously.
221      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
222      - put arguments in standard order: myTime, myIter, myThid
223      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
224        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
225      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
226      - new routine to print summary of CFC params and check for consistency.
227    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
228      similar to thsice_advdiff.
229      Note that for the B-grid case the routine parameters uc/vc are overwritten.
230    o pkg/cfc:
231      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
232        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
233      - fix interpolation of atmphspheric CFC between Sorthern and Northern
234        hemisphere value.
235    o pkg/seaice:
236      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
237    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
238                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
239      - requires an additional time level that is stored in the pickup
240      - you can start with AB2 from a pickup without this time level with
241        pickupStrictlyMatch = .false.
242    
243    checkpoint64h (2013/05/26)
244    o pkg/cheapaml:
245      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
246        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
247      - consistent treatment of uWind,vWind location: assume everywhere in
248        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
249        (Note: was already the case for Tair,Qair advection);
250        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
251      - compute diabatic forcing only in the interior (excluding overlap regions)
252      - fill in array "Qsw" (for short-wave heating);
253      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
254        before any update (consistent with MITgcm state var diagnostics);
255      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
256        non periodic ; + adjusted for uWind,vWind (C-grid).
257    o pkg/seaice:
258      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
259        add explicitly pkg/exf in experiments that currently use pkg/seaice.
260      - allows to compile pkg/seaice without pkg/exf.
261    o tools/OAD_support:
262      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
263        of array "ourStepOf" in function rvNextAction (revolve.F90).
264    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
265      - change pkg name (to be used with other atmospheric physics pkg)
266        but by-pass CVS when making the new pkg so that we keep the CVS history.
267    o pkg/offline:
268      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
269        (previously called from pkg/dic_surfforcing_init.F)
270    o model/src:
271      - re-order sequence of calls within packages_init_variables.F, using
272        standard order, except for:
273         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
274         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
275    o new pkg: atm_phys
276      - add entry point and source code (previously in contrib
277          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
278        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
279      - re-order sequence of calls within packages_readparms.F,
280         packages_init_fixed.F and packages_write_pickup.F
281        (but skip packages_init_variables.F because of TAF issues).
282      - update contrib/*/atm_gray/ experiment.
283    o pkg/seaice (ITD code):
284      - simplify and fix the writing of pickup-files for ITD case
285    o pkg/seaice (ITD code):
286      - introduce floe size dependent lateral melt for ITD case;
287      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
288      - update seaice_itd experiment main output.
289    o pkg/thsice:
290      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
291        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
292        changed accordingly pkg/atm2d.
293    
294    checkpoint64g (2013/05/01)
295    o pkg/exf ALLOW_RUNOFTEMP
296      - if defined,  river and glacier runoff temperature can be read-in from
297        runoftempfile; runoftempfile needs to have same format as runofffile
298    o pkg/thsice (& pkg/bulk_force):
299      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
300        for energy content of Precip + RunOff & Evap (like with pkg/exf).
301      - change computation domain to always be the interior (without overlap).
302      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
303    o verification/tutorial_global_oce_biogeo:
304      - add preliminary OpenAD setup (still has problems)
305    o pkg/seaice:
306      - turn some parameters for choosing the convergence criterion of
307        the inexact Newton method (JFNK) into runtime parameters for convenience
308      - clean up seaice_calc_viscosities.F: remove/retire two options for
309        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
310        the results of lab_sea/input because a division has been replaced by
311        a multiplication with the reciprocal (sumNorm)
312      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
313        convergence of solver (changes results, of course), and to test some
314        new features
315    o model/src:
316      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
317      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
318      - move forcing adjustment (balancing surface forcing) in specific S/R
319        where might also be applied exchanges (if needed) to forcing arrays.
320    o pkg/shelfice:
321      - allow to specify the Ice-Shelf mass per unit area (instead of
322        shelficeLoadAnomaly) and do the conversion from one to the other
323      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
324        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
325        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
326        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
327      - update isomip experiment forward output (get machine truncation error
328        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
329    o verification/offline_exf_seaice:
330      revise data.seaice in input.thermo and input_ad and update results accordingly
331        HO = 0.2, SEAICE_areaLossFormula = 2,
332        SEAICE_growMeltByConv = .TRUE.,
333        SEAICE_doOpenWaterMelt = .TRUE.,
334      Improve consistency with input.thsice and fix the spurious 500m ice corners
335    o verification/global_ocean.cs32x15:
336      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
337        in icedyn (thsice+seaice-dyn) test and update output.
338    o verification/offline_exf_seaice:
339      - adjust list of tested variables (with testreport) and update
340        standard test output with better slection of monitored fields.
341    o pkg/cd_code:
342      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
343        experiment lab_sea.hb87
344    o tools/genmake2:
345      - change default makedepend from the system default to tools/xmakedepend:
346        When no makedepend is specified, select tools/xmakedepend it the test pass,
347        otherwise select the system default (if exist and pass the test) or
348        try to build cyrus-makedepend ; stop if none of the 3 works.
349    o pkg/exf & pkg/thsice:
350      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
351        for energy content of Precip + RunOff & Evap. Assumes:
352       1) Rain has same temp as Air.
353       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
354       3) Run-Off comes at the temp of surface water (with same Cp)
355       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
356        put directly into Latent Heat flux & should use water-vapor heat capacity.
357       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
358        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
359    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
360        (compile when SEAICE_ALLOW_JFNK is defined)
361    o pkg/thsice:
362      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
363        implementation): move THSICE_AVE call after the advection (called directly
364        from thsice_do_advect.F).
365    o verification/global_ocean.90x40x15 and OpenAD:
366      New experiment for OpenAD is identical to the one in input_ad except that
367        multiDimAdvection=.FALSE.,
368      There is still an issue with this.
369    o pkg/thsice:
370      - account for ice velocity (ocean relative velocity) in turbulent heat flux
371        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
372        and offline_exf_seaice (main test).
373    
374    checkpoint64f (2013/03/31)
375    o verification/OpenAD:
376      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
377    o verification/isomip, pkg/shelfice and OpenAD:
378      - add OpenAD setup to this exp and make shelfice package work with OpenAD
379    o verification/tutorial_global_oce_biogeo:
380      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
381    o verification/offline_exf_seaice:
382      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
383    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
384      - add OpenAD setup to this exp and make ptracers package work with OpenAD
385    o pkg/seaice/seaice_evp.F:
386       mask the asymmetric contribution of the ice-ocean stress (when
387       the turningAngle is non-zero) over open water to avoid stripes
388       in the EVP-solutions after many EVP-substeps. This does not change
389       the verification experiment (because turningAngle=0 in that experiment),
390       but will affect other EVP solutions with turningAngle.ne.0
391    o verification, AD & TLM output:
392      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
393        additions and multiplications which affect results at machine truncation
394        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
395        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
396        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
397        digits of matching.
398    o pkg/seaice:
399       modify lsr-algorithm so that it vectorizes AND converges by using a
400       "zebra" method: split vector loop into two with step size 2; this
401       solves a general convergence problem for the JFNK solver on a vector
402       computer. It has the potential to even improve convergence for
403       non-vector machines, but it does change the results so it is turned
404       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
405       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
406    
407    checkpoint64e (2013/03/05)
408    o pkg/ecco and several verification experiments:
409       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
410       from ecco package, and revert to unified routine in model/src/
411       Adjust verification experiments accordingly, especially gloal_oce_llc90
412       Should conclude long-standing work by Gael to reconsile the_main_loop with
413       ECCO and will enable OpenAD's revolve loop in ECCO setup.
414    o pkg/generic_advdiff:
415      - implement compressible flow method for multi-dim advection (similar to
416        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
417        TAF generates many recomputations) to use it; no yet coded with implicit
418        vertical advection.
419      - change experiment advect_cs (new output) and advect_xy (same output)
420        to test compressible flow multi-dim advection.
421    o pkg/generic_advdiff:
422      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
423        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
424    o pkg/seaice:
425      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
426        bug affects two verification experiments (lab_sea and lab_sea.hb87),
427        recover old (wrong) results by setting noSlipFac = 2. in
428        seaice_calc_strainrates.F;
429      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
430      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
431        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
432      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
433    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
434      - new subroutines seaice_lsr_tridiagu/v
435      - introduce loop bounds i/jmin/max to be able to use a restricted
436        additive Schwarz method, but not used for now.
437      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
438      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
439    o OpenAD support
440       Reorganize S/R call for overall time-stepping loop to facilitate
441       OpenAD revolve loop replacement
442       (new S/R main_do_loop.F)
443    o model/src:
444      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
445      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
446        ADAMS_BASHFORTH2.
447    o pkg/cheapaml:
448      - add new parameter (default=F, same as before) to disable full domain
449        (including land) periodicity in X & Y dir.
450      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
451        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
452        into single S/R CHEAPAML_TIMESTEP.
453    
454    checkpoint64d (2013/02/17)
455    o pkg/monitor (angular momentum):
456      - do not add Eta contribution to the total AM if using rigid-lid;
457      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
458      - horizontal discretisation: compute Zonal wind contribution separately for
459        each component (instead of from cell centered averaged) and use the 4
460        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
461      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
462        FreeSurf) if using vectorInvariant momentum.
463    o model/src (horizontal grid):
464      - move initialisation of all horizontal grid arrays to null value
465        from specific horizontal grid S/R to main S/R INI_GRID;
466      - add 2 new arrays to project model C-grid velocity on to zonal direction
467        (similar to AngleCosC & -AngleSinC but at U and V point location) and
468        compute them in S/R CALC_GRID_ANGLES.
469    o pkg/seaice: replace a hard coded parameter by a runtime parameter
470        SEAICE_JFNK_tolIter
471    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
472        preconditioner for JFNK (run LSR into the overlaps as far as possible,
473        i.e OLx/y-2, but overwrite the solution in the overlaps)
474      - extend loop range in seaice_calc_viscosity
475      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
476      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
477      - slightly modify loops in tridiagonal solver lsr-preconditioner
478      - by default remove the extra exchange in seaice_preconditioner with a
479        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
480      - modify offline_exf_seaice so that old results without RAS are reproduced
481        for output.dyn_jfnk.txt
482      in seaice_fgmres.F (unrelated to RAS)
483      - add a cpp-flag option for a re-ordered mapping (potentially more
484        efficient), but because this changes the results, turn it off by
485        default
486      - replace the save statement by local common blocks
487    o utils/matlab:
488      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
489      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
490        instead of local script "load_cs.m".
491    o pkg/seaice:
492      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
493        to the scalarProductMetric and the unrolling. By chance this does not
494        change the verification experiment, because of the particular domain
495        decomposition
496    o pkg/diagnostics:
497      - change default missing_value from UNSET_RL to -999.
498    o pkg/layers: improve vectorization of layers_fluxcalc.F
499      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
500        time spent in this routine by more than a factor of 3 on an NEC-SX8
501      - step 2: replace search algorithm by a bisection algorithm found in
502        Press et al. Numerical Recipes in Fortran. This algorithm can be
503        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
504        For now, use this algorithm only for TARGET_NEC_SX defined.
505      - moved the search algorithm into a separate subroutine, that is kept
506        within the same file for automatic inlining.
507      - modified catching potential errors
508    o pkg/ecco:
509      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
510    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
511      - modifications for ALLOW_GENTIM2D_CONTROL
512      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
513      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
514      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
515      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
516    o model/src:
517      - account for moist thermodynamics in (dry) potential temperature equation;
518        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
519        and cpl_aim+ocn.
520      - also switch to standard compiler (gfortran, was using ifort previously)
521        for fizhi-cs experiments reference output.
522    o pkg/ctrl:
523    - 1st step toward generic time-varying control variable (2D) via CPP option    - 1st step toward generic time-varying control variable (2D) via CPP option
524      ALLOW_GENTIM2D_CONTROL      ALLOW_GENTIM2D_CONTROL
525    - note new namelist ctrl_nml_genarr in data.ctrl    - note new namelist ctrl_nml_genarr in data.ctrl

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