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revision 1.1826 by jmc, Sun Feb 17 04:38:29 2013 UTC revision 1.1920 by jmc, Wed Sep 11 20:22:38 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/atm_compon_interf:
8      - regroup per field origin (model & pkgs) the coupling storage routines
9         (which accumalate in time each coupling field)
10      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
11        update accordingly + simplify aim_do_physics.F
12    
13    checkpoint64n (2013/08/26)
14    o pkg/bbl:
15      - update formulation to reduce dispersion of tracer properties in bbl
16      - replaced horizontal and vertical transport parameters with velocities
17      - changes results for verification/global_with_exf.yearly
18    o verification/halfpipe_streamice:
19      - change to matrix construction; update both Fwd & AD output.
20    o verification/tutorial_tracer_adjsens:
21      - OpenAD test: switch to vector-invariant momentum since fluxform with
22        rStar causes problems with OpenAD; update output.
23    o tools:
24      - genmake2: define a common prefix for all temp-file names ; move them
25        to local /tmp disk (but would be easy to move them back);
26      - xmakedepend: apply the same switch for temp-files.
27    o pkg/offline:
28      - changes for use with rStar (NLFS): assume that we continue to provide
29        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
30        output files) and apply r* scaling at each time-step (function of the time
31        varying Eta field); use normal pickup files (needed for restart with NLFS).
32    o adjoint with OpenAD:
33      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
34        package openad.  This package has to be compiled for all runs with OpenAD
35        instead of specifying code_oad_all as a modification directory.
36      - link the fortran templates from tools/OAD_support to the build directory
37        for preprocessing to avoid conflicts between different setups compiled
38        simultaneously and simplify cleanup.
39    o pkg/exf:
40      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
41        main model or other pkgs are exchanged in EXF_MAPFIELDS).
42    o model/src:
43      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
44        (similar to do_fields_blocking_exchanges.F).
45    o tools/genmake2:
46      - remove TAF output src code just before calling staf (when not doing a fresh
47        built, will stop if things go wrong with staf).
48      - fix target "adobj" (left from TAF version-2 transition)
49    o pkg/diagnostics:
50      - add a parameter to track the status of pkg/diagnostics activation;
51        this replace/extend the use of logical param "settingDiags" (to check
52        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
53        New S/R to print error message and stop when pkgStatus is not right.
54      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
55    
56    checkpoint64m (2013/08/13)
57    o model/inc:
58      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
59        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
60    o pkg/kpp & aim_v23:
61      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
62    o pkg/seaice:
63      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
64        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
65      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
66    o eesupp/src:
67      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
68        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
69    o switch to TAF version-2:
70      - add flow directives to "freeze" naming convention for ad-routines that
71        are used in I/O routines of adjoint state and associated common blocks
72        that are used in adcommon.h (backward compatible with version-1)
73      - update all ad-optfiles (in tools/adjoint_options + few local to some
74        verification exp) to switch to latest TAF version (currently 2.5.5);
75        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
76        out except for diva).
77      - the major change with TAF version-2 is that both the differentiated
78        routines and the forward routines (new) are returned as part of the TAF
79        output source code. Update genmake2 accordingly.
80      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
81        with version-2 when compared to TLM or FWD gradient); other experiments
82        output show minor changes (machine truncation level); update the few AD &
83        TLM output with 12 matching digits only (some prior to version-2 switch).
84    
85    checkpoint64l (2013/08/05)
86    o model/src:
87      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
88      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
89        when using TAF but only if using OpenAD.
90    o pkg/mom_common+fluxform+vecinv:
91      - always set horiz. viscosity arrays to background value before calling
92        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
93        only when using variable horiz. viscosity (useVariableVisc=T);
94      - simplify mom_vecinv.F (only 1 block for momViscosity).
95    o pkg/mom_common: variable horiz. viscosity in NH code
96      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
97        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
98      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
99        useBiharmonicVisc & useVariableVisc.
100      - fix old bug (already in 1rst implementation of variable horizontal viscosity
101        in calc_gw.F, version 1.27, 2006/06/20):
102        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
103        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
104      - change background horiz viscosity in vertical momentum (gW) to always be
105        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
106        any type of variable viscosity, e.g., viscAh/4Grid)
107      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
108        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
109        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
110        default viscAh,viscA4 is zero).
111    o model/src:
112      - extend length of drC & recip_drC from Nr to Nr+1.
113    o Divided Adjoint (DIVA) with MPI:
114      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
115      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
116        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
117    
118    checkpoint64k (2013/07/23)
119    o tools/OAD_support:
120      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
121        and remove it from genmake2.
122    o tools/build_options:
123      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
124        MPI_HEADER_FILES list (let genmake2 find the missing headers)
125    o verification/halfpipe_streamice:
126      - change to driving stress formulation; update both Fwd & AD output.
127    o tools/genmake2 and Divided Adjoint with MPI:
128      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
129      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
130      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
131        Makefile, which is set by genmake2, and check which mpi-headers are needed.
132        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
133      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
134    o testreport:
135      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
136        perform additional runs (number of additional runs is "add_DIVA_runs" taken
137        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
138    o verification/lab_sea (AD test):
139      - change to test Divided Adjoint Run in this set-up (both standard AD test
140        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
141    o pkg atm_ & ocn_compon_interf:
142      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
143        staggerTimeStep implementation) and disable (retired) corresponding
144        parameter.
145    o pkg/offline:
146      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
147      - add S/R OFFLINE_CHECK to print offline parameter summary
148        and stop if loading a file that is not used;
149      - enable to calculate GMRedi tensor, KPP mixing and convective index
150        when the corresponding file(s) is/are not specified (but pkg is used).
151      - comment out resetting of monitorFreq (to endTime) since it still useful
152        for monitoring CFL numbers and checking offline fields.
153    o OpenAD:
154      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
155        smaller standard output) and generate new (smaller) output (on baudelaire
156        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
157    o model/src:
158      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
159        (where external_forcing_adjust was called) and change list of arguments;
160      - merge external_forcing_adjust.F into external_forcing_surf.F
161      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
162        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
163        previously in file "balance_relax.F", now removed); remove corresponding
164        arrays in FFIELDS.h.
165      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
166        a hack for getting back surfaceForcingS (loaded from file) when using
167        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
168      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
169        (was getting only 11 digits for AD-grad, due to different truncation
170         error in AD code).
171    
172    checkpoint64j (2013/07/04)
173    o pkg/offline:
174      - to enable the use of other features with pkg offline (e.g., obcs),
175        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
176      - comment out "allowFreezing" (now active) in 2 offline testing exp.
177    o pkg/exf ALLOW_RUNOFTEMP
178      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
179      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
180      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
181    o pkg/atm_phys:
182      - allows to add some damping on uVel,vVel (strength only function of k).
183    o verification, ad-tests:
184      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
185        global_ocean_ebm and offline_exf_seaice.thsice.
186    o verification/halfpipe_streamice:
187      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
188        flux input boundary conditions to be ignored; a fix for this bug changed
189        verification results for forward test.
190      - add adjoint test.
191    o pkg/ptracers:
192      - allow to restart without SOM pickup (resetting SOM to zero).
193    o pkg/gmredi:
194      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
195      - It uses mixing length theory and suppression by steering level effects to
196        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
197        to JPO, for more details).
198      - It also uses the diffusivity to calculate an eddy induced streamfunction
199        based on a PV closure (rather than a buoyancy closure as in GM).
200      - New files added to pkg/gmredi:
201        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
202          induced overturning streamfunction (called from gmredi_calc_tensor)
203        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
204          for use in gmredi_k3d
205        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
206          the eddy diffusivity
207    
208    checkpoint64i (2013/06/18)
209    o pkg/cheapaml:
210      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
211        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
212        with pkg/cheapaml.
213    o utils/python: add subpackage for cubed sphere function, first example is
214        simple cs.pcol to plot 2D fields on a map
215    o pkg/streamice:
216      - This is a new package in MITgcm, which solves dynamic equations for ice
217         sheets and ice streams
218      - At the moment it is independent of atmosphere/ocean dynamics, or any
219        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
220        ed that this will change)
221      - There is a new verification exercise that tests it, halfpipe_streamice,
222        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
223        rectangular embayment
224      - halfpipe_streamice is forward-only for now, will have TAF test soon
225      - for questions, email dgoldber@mit.edu
226    o pkg/thsice:
227      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
228        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
229      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
230         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
231      - allow precip from pkg/cheapaml to make snow over seaice.
232    o pkg/cfc:
233      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
234      - remove atmos CFC 2-D arrays from common bloc (now local variables)
235      - change some hard-coded constant to run time parameter for reading and
236        and interpolating atmospheric CFC ; keep same default as previously.
237      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
238      - put arguments in standard order: myTime, myIter, myThid
239      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
240        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
241      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
242      - new routine to print summary of CFC params and check for consistency.
243    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
244      similar to thsice_advdiff.
245      Note that for the B-grid case the routine parameters uc/vc are overwritten.
246    o pkg/cfc:
247      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
248        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
249      - fix interpolation of atmphspheric CFC between Sorthern and Northern
250        hemisphere value.
251    o pkg/seaice:
252      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
253    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
254                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
255      - requires an additional time level that is stored in the pickup
256      - you can start with AB2 from a pickup without this time level with
257        pickupStrictlyMatch = .false.
258    
259    checkpoint64h (2013/05/26)
260    o pkg/cheapaml:
261      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
262        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
263      - consistent treatment of uWind,vWind location: assume everywhere in
264        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
265        (Note: was already the case for Tair,Qair advection);
266        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
267      - compute diabatic forcing only in the interior (excluding overlap regions)
268      - fill in array "Qsw" (for short-wave heating);
269      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
270        before any update (consistent with MITgcm state var diagnostics);
271      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
272        non periodic ; + adjusted for uWind,vWind (C-grid).
273    o pkg/seaice:
274      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
275        add explicitly pkg/exf in experiments that currently use pkg/seaice.
276      - allows to compile pkg/seaice without pkg/exf.
277    o tools/OAD_support:
278      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
279        of array "ourStepOf" in function rvNextAction (revolve.F90).
280    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
281      - change pkg name (to be used with other atmospheric physics pkg)
282        but by-pass CVS when making the new pkg so that we keep the CVS history.
283    o pkg/offline:
284      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
285        (previously called from pkg/dic_surfforcing_init.F)
286    o model/src:
287      - re-order sequence of calls within packages_init_variables.F, using
288        standard order, except for:
289         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
290         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
291    o new pkg: atm_phys
292      - add entry point and source code (previously in contrib
293          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
294        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
295      - re-order sequence of calls within packages_readparms.F,
296         packages_init_fixed.F and packages_write_pickup.F
297        (but skip packages_init_variables.F because of TAF issues).
298      - update contrib/*/atm_gray/ experiment.
299    o pkg/seaice (ITD code):
300      - simplify and fix the writing of pickup-files for ITD case
301    o pkg/seaice (ITD code):
302      - introduce floe size dependent lateral melt for ITD case;
303      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
304      - update seaice_itd experiment main output.
305    o pkg/thsice:
306      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
307        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
308        changed accordingly pkg/atm2d.
309    
310    checkpoint64g (2013/05/01)
311    o pkg/exf ALLOW_RUNOFTEMP
312      - if defined,  river and glacier runoff temperature can be read-in from
313        runoftempfile; runoftempfile needs to have same format as runofffile
314    o pkg/thsice (& pkg/bulk_force):
315      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
316        for energy content of Precip + RunOff & Evap (like with pkg/exf).
317      - change computation domain to always be the interior (without overlap).
318      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
319    o verification/tutorial_global_oce_biogeo:
320      - add preliminary OpenAD setup (still has problems)
321    o pkg/seaice:
322      - turn some parameters for choosing the convergence criterion of
323        the inexact Newton method (JFNK) into runtime parameters for convenience
324      - clean up seaice_calc_viscosities.F: remove/retire two options for
325        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
326        the results of lab_sea/input because a division has been replaced by
327        a multiplication with the reciprocal (sumNorm)
328      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
329        convergence of solver (changes results, of course), and to test some
330        new features
331    o model/src:
332      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
333      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
334      - move forcing adjustment (balancing surface forcing) in specific S/R
335        where might also be applied exchanges (if needed) to forcing arrays.
336    o pkg/shelfice:
337      - allow to specify the Ice-Shelf mass per unit area (instead of
338        shelficeLoadAnomaly) and do the conversion from one to the other
339      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
340        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
341        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
342        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
343      - update isomip experiment forward output (get machine truncation error
344        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
345    o verification/offline_exf_seaice:
346      revise data.seaice in input.thermo and input_ad and update results accordingly
347        HO = 0.2, SEAICE_areaLossFormula = 2,
348        SEAICE_growMeltByConv = .TRUE.,
349        SEAICE_doOpenWaterMelt = .TRUE.,
350      Improve consistency with input.thsice and fix the spurious 500m ice corners
351    o verification/global_ocean.cs32x15:
352      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
353        in icedyn (thsice+seaice-dyn) test and update output.
354    o verification/offline_exf_seaice:
355      - adjust list of tested variables (with testreport) and update
356        standard test output with better slection of monitored fields.
357    o pkg/cd_code:
358      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
359        experiment lab_sea.hb87
360    o tools/genmake2:
361      - change default makedepend from the system default to tools/xmakedepend:
362        When no makedepend is specified, select tools/xmakedepend it the test pass,
363        otherwise select the system default (if exist and pass the test) or
364        try to build cyrus-makedepend ; stop if none of the 3 works.
365    o pkg/exf & pkg/thsice:
366      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
367        for energy content of Precip + RunOff & Evap. Assumes:
368       1) Rain has same temp as Air.
369       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
370       3) Run-Off comes at the temp of surface water (with same Cp)
371       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
372        put directly into Latent Heat flux & should use water-vapor heat capacity.
373       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
374        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
375    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
376        (compile when SEAICE_ALLOW_JFNK is defined)
377    o pkg/thsice:
378      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
379        implementation): move THSICE_AVE call after the advection (called directly
380        from thsice_do_advect.F).
381    o verification/global_ocean.90x40x15 and OpenAD:
382      New experiment for OpenAD is identical to the one in input_ad except that
383        multiDimAdvection=.FALSE.,
384      There is still an issue with this.
385    o pkg/thsice:
386      - account for ice velocity (ocean relative velocity) in turbulent heat flux
387        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
388        and offline_exf_seaice (main test).
389    
390    checkpoint64f (2013/03/31)
391    o verification/OpenAD:
392      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
393    o verification/isomip, pkg/shelfice and OpenAD:
394      - add OpenAD setup to this exp and make shelfice package work with OpenAD
395    o verification/tutorial_global_oce_biogeo:
396      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
397    o verification/offline_exf_seaice:
398      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
399    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
400      - add OpenAD setup to this exp and make ptracers package work with OpenAD
401    o pkg/seaice/seaice_evp.F:
402       mask the asymmetric contribution of the ice-ocean stress (when
403       the turningAngle is non-zero) over open water to avoid stripes
404       in the EVP-solutions after many EVP-substeps. This does not change
405       the verification experiment (because turningAngle=0 in that experiment),
406       but will affect other EVP solutions with turningAngle.ne.0
407    o verification, AD & TLM output:
408      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
409        additions and multiplications which affect results at machine truncation
410        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
411        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
412        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
413        digits of matching.
414    o pkg/seaice:
415       modify lsr-algorithm so that it vectorizes AND converges by using a
416       "zebra" method: split vector loop into two with step size 2; this
417       solves a general convergence problem for the JFNK solver on a vector
418       computer. It has the potential to even improve convergence for
419       non-vector machines, but it does change the results so it is turned
420       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
421       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
422    
423    checkpoint64e (2013/03/05)
424    o pkg/ecco and several verification experiments:
425       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
426       from ecco package, and revert to unified routine in model/src/
427       Adjust verification experiments accordingly, especially gloal_oce_llc90
428       Should conclude long-standing work by Gael to reconsile the_main_loop with
429       ECCO and will enable OpenAD's revolve loop in ECCO setup.
430    o pkg/generic_advdiff:
431      - implement compressible flow method for multi-dim advection (similar to
432        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
433        TAF generates many recomputations) to use it; no yet coded with implicit
434        vertical advection.
435      - change experiment advect_cs (new output) and advect_xy (same output)
436        to test compressible flow multi-dim advection.
437    o pkg/generic_advdiff:
438      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
439        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
440    o pkg/seaice:
441      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
442        bug affects two verification experiments (lab_sea and lab_sea.hb87),
443        recover old (wrong) results by setting noSlipFac = 2. in
444        seaice_calc_strainrates.F;
445      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
446      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
447        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
448      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
449    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
450      - new subroutines seaice_lsr_tridiagu/v
451      - introduce loop bounds i/jmin/max to be able to use a restricted
452        additive Schwarz method, but not used for now.
453      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
454      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
455    o OpenAD support
456       Reorganize S/R call for overall time-stepping loop to facilitate
457       OpenAD revolve loop replacement
458       (new S/R main_do_loop.F)
459    o model/src:
460      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
461      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
462        ADAMS_BASHFORTH2.
463    o pkg/cheapaml:
464      - add new parameter (default=F, same as before) to disable full domain
465        (including land) periodicity in X & Y dir.
466      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
467        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
468        into single S/R CHEAPAML_TIMESTEP.
469    
470    checkpoint64d (2013/02/17)
471  o pkg/monitor (angular momentum):  o pkg/monitor (angular momentum):
472    - do not add Eta contribution to the total AM if using rigid-lid;    - do not add Eta contribution to the total AM if using rigid-lid;
473    - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).    - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).

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