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revision 1.1760 by mlosch, Tue Nov 6 12:31:30 2012 UTC revision 1.1903 by jmc, Sun Jul 28 21:18:54 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/seaice/seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes  o pkg/mom_common: variable horiz. viscosity in NH code
8    a serious convergence problem when open boundaries are involved    - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
9  o pkg/ggl90: fix computation of control volumes for the case of      from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
10      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
11        useBiharmonicVisc & useVariableVisc.
12      - fix old bug (already in 1rst implementation of variable horizontal viscosity
13        in calc_gw.F, version 1.27, 2006/06/20):
14        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
15        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
16      - change background horiz viscosity in vertical momentum (gW) to always be
17        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
18        any type of variable viscosity, e.g., viscAh/4Grid)
19      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
20        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
21        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
22        default viscAh,viscA4 is zero).
23    o model/src:
24      - extend length of drC & recip_drC from Nr to Nr+1.
25    o Divided Adjoint (DIVA) with MPI:
26      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
27      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
28        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
29    
30    checkpoint64k (2013/07/23)
31    o tools/OAD_support:
32      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
33        and remove it from genmake2.
34    o tools/build_options:
35      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
36        MPI_HEADER_FILES list (let genmake2 find the missing headers)
37    o verification/halfpipe_streamice:
38      - change to driving stress formulation; update both Fwd & AD output.
39    o tools/genmake2 and Divided Adjoint with MPI:
40      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
41      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
42      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
43        Makefile, which is set by genmake2, and check which mpi-headers are needed.
44        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
45      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
46    o testreport:
47      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
48        perform additional runs (number of additional runs is "add_DIVA_runs" taken
49        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
50    o verification/lab_sea (AD test):
51      - change to test Divided Adjoint Run in this set-up (both standard AD test
52        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
53    o pkg atm_ & ocn_compon_interf:
54      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
55        staggerTimeStep implementation) and disable (retired) corresponding
56        parameter.
57    o pkg/offline:
58      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
59      - add S/R OFFLINE_CHECK to print offline parameter summary
60        and stop if loading a file that is not used;
61      - enable to calculate GMRedi tensor, KPP mixing and convective index
62        when the corresponding file(s) is/are not specified (but pkg is used).
63      - comment out resetting of monitorFreq (to endTime) since it still useful
64        for monitoring CFL numbers and checking offline fields.
65    o OpenAD:
66      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
67        smaller standard output) and generate new (smaller) output (on baudelaire
68        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
69    o model/src:
70      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
71        (where external_forcing_adjust was called) and change list of arguments;
72      - merge external_forcing_adjust.F into external_forcing_surf.F
73      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
74        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
75        previously in file "balance_relax.F", now removed); remove corresponding
76        arrays in FFIELDS.h.
77      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
78        a hack for getting back surfaceForcingS (loaded from file) when using
79        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
80      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
81        (was getting only 11 digits for AD-grad, due to different truncation
82         error in AD code).
83    
84    checkpoint64j (2013/07/04)
85    o pkg/offline:
86      - to enable the use of other features with pkg offline (e.g., obcs),
87        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
88      - comment out "allowFreezing" (now active) in 2 offline testing exp.
89    o pkg/exf ALLOW_RUNOFTEMP
90      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
91      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
92      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
93    o pkg/atm_phys:
94      - allows to add some damping on uVel,vVel (strength only function of k).
95    o verification, ad-tests:
96      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
97        global_ocean_ebm and offline_exf_seaice.thsice.
98    o verification/halfpipe_streamice:
99      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
100        flux input boundary conditions to be ignored; a fix for this bug changed
101        verification results for forward test.
102      - add adjoint test.
103    o pkg/ptracers:
104      - allow to restart without SOM pickup (resetting SOM to zero).
105    o pkg/gmredi:
106      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
107      - It uses mixing length theory and suppression by steering level effects to
108        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
109        to JPO, for more details).
110      - It also uses the diffusivity to calculate an eddy induced streamfunction
111        based on a PV closure (rather than a buoyancy closure as in GM).
112      - New files added to pkg/gmredi:
113        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
114          induced overturning streamfunction (called from gmredi_calc_tensor)
115        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
116          for use in gmredi_k3d
117        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
118          the eddy diffusivity
119    
120    checkpoint64i (2013/06/18)
121    o pkg/cheapaml:
122      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
123        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
124        with pkg/cheapaml.
125    o utils/python: add subpackage for cubed sphere function, first example is
126        simple cs.pcol to plot 2D fields on a map
127    o pkg/streamice:
128      - This is a new package in MITgcm, which solves dynamic equations for ice
129         sheets and ice streams
130      - At the moment it is independent of atmosphere/ocean dynamics, or any
131        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
132        ed that this will change)
133      - There is a new verification exercise that tests it, halfpipe_streamice,
134        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
135        rectangular embayment
136      - halfpipe_streamice is forward-only for now, will have TAF test soon
137      - for questions, email dgoldber@mit.edu
138    o pkg/thsice:
139      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
140        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
141      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
142         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
143      - allow precip from pkg/cheapaml to make snow over seaice.
144    o pkg/cfc:
145      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
146      - remove atmos CFC 2-D arrays from common bloc (now local variables)
147      - change some hard-coded constant to run time parameter for reading and
148        and interpolating atmospheric CFC ; keep same default as previously.
149      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
150      - put arguments in standard order: myTime, myIter, myThid
151      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
152        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
153      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
154      - new routine to print summary of CFC params and check for consistency.
155    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
156      similar to thsice_advdiff.
157      Note that for the B-grid case the routine parameters uc/vc are overwritten.
158    o pkg/cfc:
159      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
160        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
161      - fix interpolation of atmphspheric CFC between Sorthern and Northern
162        hemisphere value.
163    o pkg/seaice:
164      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
165    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
166                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
167      - requires an additional time level that is stored in the pickup
168      - you can start with AB2 from a pickup without this time level with
169        pickupStrictlyMatch = .false.
170    
171    checkpoint64h (2013/05/26)
172    o pkg/cheapaml:
173      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
174        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
175      - consistent treatment of uWind,vWind location: assume everywhere in
176        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
177        (Note: was already the case for Tair,Qair advection);
178        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
179      - compute diabatic forcing only in the interior (excluding overlap regions)
180      - fill in array "Qsw" (for short-wave heating);
181      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
182        before any update (consistent with MITgcm state var diagnostics);
183      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
184        non periodic ; + adjusted for uWind,vWind (C-grid).
185    o pkg/seaice:
186      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
187        add explicitly pkg/exf in experiments that currently use pkg/seaice.
188      - allows to compile pkg/seaice without pkg/exf.
189    o tools/OAD_support:
190      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
191        of array "ourStepOf" in function rvNextAction (revolve.F90).
192    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
193      - change pkg name (to be used with other atmospheric physics pkg)
194        but by-pass CVS when making the new pkg so that we keep the CVS history.
195    o pkg/offline:
196      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
197        (previously called from pkg/dic_surfforcing_init.F)
198    o model/src:
199      - re-order sequence of calls within packages_init_variables.F, using
200        standard order, except for:
201         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
202         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
203    o new pkg: atm_phys
204      - add entry point and source code (previously in contrib
205          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
206        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
207      - re-order sequence of calls within packages_readparms.F,
208         packages_init_fixed.F and packages_write_pickup.F
209        (but skip packages_init_variables.F because of TAF issues).
210      - update contrib/*/atm_gray/ experiment.
211    o pkg/seaice (ITD code):
212      - simplify and fix the writing of pickup-files for ITD case
213    o pkg/seaice (ITD code):
214      - introduce floe size dependent lateral melt for ITD case;
215      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
216      - update seaice_itd experiment main output.
217    o pkg/thsice:
218      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
219        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
220        changed accordingly pkg/atm2d.
221    
222    checkpoint64g (2013/05/01)
223    o pkg/exf ALLOW_RUNOFTEMP
224      - if defined,  river and glacier runoff temperature can be read-in from
225        runoftempfile; runoftempfile needs to have same format as runofffile
226    o pkg/thsice (& pkg/bulk_force):
227      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
228        for energy content of Precip + RunOff & Evap (like with pkg/exf).
229      - change computation domain to always be the interior (without overlap).
230      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
231    o verification/tutorial_global_oce_biogeo:
232      - add preliminary OpenAD setup (still has problems)
233    o pkg/seaice:
234      - turn some parameters for choosing the convergence criterion of
235        the inexact Newton method (JFNK) into runtime parameters for convenience
236      - clean up seaice_calc_viscosities.F: remove/retire two options for
237        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
238        the results of lab_sea/input because a division has been replaced by
239        a multiplication with the reciprocal (sumNorm)
240      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
241        convergence of solver (changes results, of course), and to test some
242        new features
243    o model/src:
244      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
245      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
246      - move forcing adjustment (balancing surface forcing) in specific S/R
247        where might also be applied exchanges (if needed) to forcing arrays.
248    o pkg/shelfice:
249      - allow to specify the Ice-Shelf mass per unit area (instead of
250        shelficeLoadAnomaly) and do the conversion from one to the other
251      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
252        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
253        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
254        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
255      - update isomip experiment forward output (get machine truncation error
256        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
257    o verification/offline_exf_seaice:
258      revise data.seaice in input.thermo and input_ad and update results accordingly
259        HO = 0.2, SEAICE_areaLossFormula = 2,
260        SEAICE_growMeltByConv = .TRUE.,
261        SEAICE_doOpenWaterMelt = .TRUE.,
262      Improve consistency with input.thsice and fix the spurious 500m ice corners
263    o verification/global_ocean.cs32x15:
264      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
265        in icedyn (thsice+seaice-dyn) test and update output.
266    o verification/offline_exf_seaice:
267      - adjust list of tested variables (with testreport) and update
268        standard test output with better slection of monitored fields.
269    o pkg/cd_code:
270      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
271        experiment lab_sea.hb87
272    o tools/genmake2:
273      - change default makedepend from the system default to tools/xmakedepend:
274        When no makedepend is specified, select tools/xmakedepend it the test pass,
275        otherwise select the system default (if exist and pass the test) or
276        try to build cyrus-makedepend ; stop if none of the 3 works.
277    o pkg/exf & pkg/thsice:
278      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
279        for energy content of Precip + RunOff & Evap. Assumes:
280       1) Rain has same temp as Air.
281       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
282       3) Run-Off comes at the temp of surface water (with same Cp)
283       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
284        put directly into Latent Heat flux & should use water-vapor heat capacity.
285       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
286        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
287    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
288        (compile when SEAICE_ALLOW_JFNK is defined)
289    o pkg/thsice:
290      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
291        implementation): move THSICE_AVE call after the advection (called directly
292        from thsice_do_advect.F).
293    o verification/global_ocean.90x40x15 and OpenAD:
294      New experiment for OpenAD is identical to the one in input_ad except that
295        multiDimAdvection=.FALSE.,
296      There is still an issue with this.
297    o pkg/thsice:
298      - account for ice velocity (ocean relative velocity) in turbulent heat flux
299        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
300        and offline_exf_seaice (main test).
301    
302    checkpoint64f (2013/03/31)
303    o verification/OpenAD:
304      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
305    o verification/isomip, pkg/shelfice and OpenAD:
306      - add OpenAD setup to this exp and make shelfice package work with OpenAD
307    o verification/tutorial_global_oce_biogeo:
308      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
309    o verification/offline_exf_seaice:
310      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
311    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
312      - add OpenAD setup to this exp and make ptracers package work with OpenAD
313    o pkg/seaice/seaice_evp.F:
314       mask the asymmetric contribution of the ice-ocean stress (when
315       the turningAngle is non-zero) over open water to avoid stripes
316       in the EVP-solutions after many EVP-substeps. This does not change
317       the verification experiment (because turningAngle=0 in that experiment),
318       but will affect other EVP solutions with turningAngle.ne.0
319    o verification, AD & TLM output:
320      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
321        additions and multiplications which affect results at machine truncation
322        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
323        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
324        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
325        digits of matching.
326    o pkg/seaice:
327       modify lsr-algorithm so that it vectorizes AND converges by using a
328       "zebra" method: split vector loop into two with step size 2; this
329       solves a general convergence problem for the JFNK solver on a vector
330       computer. It has the potential to even improve convergence for
331       non-vector machines, but it does change the results so it is turned
332       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
333       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
334    
335    checkpoint64e (2013/03/05)
336    o pkg/ecco and several verification experiments:
337       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
338       from ecco package, and revert to unified routine in model/src/
339       Adjust verification experiments accordingly, especially gloal_oce_llc90
340       Should conclude long-standing work by Gael to reconsile the_main_loop with
341       ECCO and will enable OpenAD's revolve loop in ECCO setup.
342    o pkg/generic_advdiff:
343      - implement compressible flow method for multi-dim advection (similar to
344        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
345        TAF generates many recomputations) to use it; no yet coded with implicit
346        vertical advection.
347      - change experiment advect_cs (new output) and advect_xy (same output)
348        to test compressible flow multi-dim advection.
349    o pkg/generic_advdiff:
350      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
351        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
352    o pkg/seaice:
353      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
354        bug affects two verification experiments (lab_sea and lab_sea.hb87),
355        recover old (wrong) results by setting noSlipFac = 2. in
356        seaice_calc_strainrates.F;
357      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
358      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
359        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
360      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
361    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
362      - new subroutines seaice_lsr_tridiagu/v
363      - introduce loop bounds i/jmin/max to be able to use a restricted
364        additive Schwarz method, but not used for now.
365      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
366      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
367    o OpenAD support
368       Reorganize S/R call for overall time-stepping loop to facilitate
369       OpenAD revolve loop replacement
370       (new S/R main_do_loop.F)
371    o model/src:
372      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
373      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
374        ADAMS_BASHFORTH2.
375    o pkg/cheapaml:
376      - add new parameter (default=F, same as before) to disable full domain
377        (including land) periodicity in X & Y dir.
378      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
379        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
380        into single S/R CHEAPAML_TIMESTEP.
381    
382    checkpoint64d (2013/02/17)
383    o pkg/monitor (angular momentum):
384      - do not add Eta contribution to the total AM if using rigid-lid;
385      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
386      - horizontal discretisation: compute Zonal wind contribution separately for
387        each component (instead of from cell centered averaged) and use the 4
388        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
389      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
390        FreeSurf) if using vectorInvariant momentum.
391    o model/src (horizontal grid):
392      - move initialisation of all horizontal grid arrays to null value
393        from specific horizontal grid S/R to main S/R INI_GRID;
394      - add 2 new arrays to project model C-grid velocity on to zonal direction
395        (similar to AngleCosC & -AngleSinC but at U and V point location) and
396        compute them in S/R CALC_GRID_ANGLES.
397    o pkg/seaice: replace a hard coded parameter by a runtime parameter
398        SEAICE_JFNK_tolIter
399    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
400        preconditioner for JFNK (run LSR into the overlaps as far as possible,
401        i.e OLx/y-2, but overwrite the solution in the overlaps)
402      - extend loop range in seaice_calc_viscosity
403      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
404      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
405      - slightly modify loops in tridiagonal solver lsr-preconditioner
406      - by default remove the extra exchange in seaice_preconditioner with a
407        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
408      - modify offline_exf_seaice so that old results without RAS are reproduced
409        for output.dyn_jfnk.txt
410      in seaice_fgmres.F (unrelated to RAS)
411      - add a cpp-flag option for a re-ordered mapping (potentially more
412        efficient), but because this changes the results, turn it off by
413        default
414      - replace the save statement by local common blocks
415    o utils/matlab:
416      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
417      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
418        instead of local script "load_cs.m".
419    o pkg/seaice:
420      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
421        to the scalarProductMetric and the unrolling. By chance this does not
422        change the verification experiment, because of the particular domain
423        decomposition
424    o pkg/diagnostics:
425      - change default missing_value from UNSET_RL to -999.
426    o pkg/layers: improve vectorization of layers_fluxcalc.F
427      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
428        time spent in this routine by more than a factor of 3 on an NEC-SX8
429      - step 2: replace search algorithm by a bisection algorithm found in
430        Press et al. Numerical Recipes in Fortran. This algorithm can be
431        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
432        For now, use this algorithm only for TARGET_NEC_SX defined.
433      - moved the search algorithm into a separate subroutine, that is kept
434        within the same file for automatic inlining.
435      - modified catching potential errors
436    o pkg/ecco:
437      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
438    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
439      - modifications for ALLOW_GENTIM2D_CONTROL
440      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
441      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
442      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
443      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
444    o model/src:
445      - account for moist thermodynamics in (dry) potential temperature equation;
446        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
447        and cpl_aim+ocn.
448      - also switch to standard compiler (gfortran, was using ifort previously)
449        for fizhi-cs experiments reference output.
450    o pkg/ctrl:
451      - 1st step toward generic time-varying control variable (2D) via CPP option
452        ALLOW_GENTIM2D_CONTROL
453      - note new namelist ctrl_nml_genarr in data.ctrl
454    o verification/global_ocean.cs32x15:
455      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
456        thsice calling sequence and update "output.icedyn.txt" output file.
457    o pkg/ptracers:
458      - from Ryan A.: code to allow to restart a tracer at regular time interval
459        specifying a reset frequency and a reset-phase (for each tracers).
460    o pkg/thsice:
461      - implement new sequence of calls for thsice+seaice:
462          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
463          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
464      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
465        in CPP_OPTIONS.h) to recover old sequence;
466      - update diagnostics for Intermediate State thsice diagnostics: now filled
467        just before advection (instead of just after advection in old sequence);
468      - update output of experiment offline_exf_seaice (standard test);
469      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
470        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
471    o pkg/aim_v23:
472      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
473      - use standard pkg/mdsio routines to read & write CO2 pickup file;
474      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
475      - Implement new sequence of calls for seaice advection (with thsice and
476        seaice diffusion): do ice advection after ice-Thermodynamic (previously
477        was done before); change aim_do_physics.F (split the bi,bj loops block);
478      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
479    o pkg/thsice:
480      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
481        where just seaice diffusion is used without seaice-dynamics.
482    
483    checkpoint64c (2013/01/18)
484    o pkg/seaice:
485      - add a parameter JFNKres_tFac that can replace JFNKres_t
486        (= JFNKres_tFac*JFNKresidual before JFNK solver)
487      - add a line search option to the JFNK solver
488      - move update of u/vIce and computation of initial residual into a separate
489        routine (same file); makes the code a little easier to read (?)
490      - the line search requires computation of the residual and for some reason
491        I cannot do the update of u/vIce at the beginning of the Newton loop
492        without changing the results, so we move computation of the new residual
493        also to the end of the Newton loop, even without the line search
494    o pkg/mdsio:
495      - write missing value (corresponding to undefined array value) to meta files;
496        skip this if missing value is one (UNSET_RL would be a better value for the
497        case of undefined missing value but it's current the default missing-value);
498        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
499    o pkg/exf & thsice:
500      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
501        diagnostics) even when SHORTWAVE_HEATING is #undef;
502    o verification/cfc_example:
503      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
504        illustrate how to use it).
505    o verification/offline_exf_seaice:
506      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
507        files to only one time-record.
508      in input.thermo: narrow the 2 bands of low initial ice-concentration near
509        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
510        snapshot output; same mcPheePiston value as in thsice with
511        surf-current=0.2m/s.
512      in input.thsice: similar set-up as in input.thermo (channel with same seaice
513        initial conditions).
514    o verification/cfc_example:
515      - update file "data" with more standard choice (default rotationPeriod,
516        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
517        set deltaTFreeSurf to deltaTtracer) and update the output.
518    o pkg/layers:
519      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
520      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
521    o verification/offline_exf_seaice:
522      - set all {field}period to zero for constant-in-time forcing (not tested
523        anywhere else).
524    o verification/offline_exf_seaice:
525      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
526      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
527    o model/src:
528      - implement Finite-Volume method for (hydrostatic) presure gradient
529        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
530    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
531      - In order to be compatible with the default EVP code, this requires changing
532        the EVP code around a little; and because any small change immediately
533        breaks the lab_sea.hb87 verification experiment, the reference output is
534        updated two times (each time the remaining aggrement was only 2 digits):
535        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
536        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
537        The adjoint test lab_sea.evp also needed to be updated.
538      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
539        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
540        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
541        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
542        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
543        kept obscure, because I need to test it a little more.
544    o pkg/cheapaml:
545      - fix few incorrect type (_RL/_RS) in subroutine calls.
546    o pkg/seaice:
547      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
548        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
549    o model/src:
550      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
551        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
552        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
553    o pkg/cheapaml:
554      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
555        update output of experiment cheapAML_box.
556      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
557        and set them only in one place (cheapaml_readparms.F).
558      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
559      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
560        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
561    o model/src/the_main_loop.F:
562      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
563    o pkg/seaice:
564      - remove legacy branch code.
565      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
566    o verification/*/code*/SEAICE_OPTIONS.h:
567      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
568        SEAICE_CAP_HEFF).
569    o pkg/cheapaml:
570      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
571        to load new forcing fields.
572      - add missing "_d 0" where it's needed; + some editing (improve indentation).
573      - remove switch to "-r8" compiler option (no longer needed) in verification
574        cheapAML_box, keep same output (small trucation error differences).
575    o verification/offline_exf_seaice:
576      - add thermodynamics only test.
577    o verification/cheapAML_box:
578      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
579        keep same output (same 14 digits for cg2d).
580      - switch on "-r8" compiler option (some numerical values are missing
581        the "_d 0") and update output (only 6 digits for cg2d were preserved).
582    
583    checkpoint64b (2012/12/24)
584    o pkg/cheapaml:
585      - remove un-used variables (Qnet,EmPmR) from pickup files.
586      - store tendency of advected variables into cheapaml pickup file
587        and fix the AB-2 restart.
588    o verification/offline_exf_seaice and lab_sea adjoint:
589      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
590      - switch to 4 time steps in offline, consistent with lab_sea.
591      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
592      - update results after change of experiment seaice.
593    o pkg/seaice:
594      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
595        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
596        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
597        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
598    o model/src:
599      - add run-time parameter to select CG2D solver minimum-residual solution
600        (in case of a poor convergence).
601    o pkg/seaice/seaice_lsr.F
602      - move calculation of matrix coefficients into new
603        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
604        file; the main purpose of this change is to be able to reuse the code
605        in S/R SEAICE_PRECONDITIONER
606      - modify the computation of the residual so that the mass of sea-ice
607        is not used twice; this simplifies the calculations, but since
608        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
609        not tested in testreport---this does not affect the testreport results.
610    o verification/seaice_obcs:
611      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
612        verification/lab_sea/input.salt_plume; changes results/output.txt*
613    o model/src:
614      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
615    o pkg/seaice:
616      - improve description of parameters in seaice_fgmres.F and start
617        cleaning up the code
618      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
619        second argument
620      - add a metric based on grid cell area to SEAICE_SCALPROD; update
621        results of offline_exf_seaice.dyn_jfnk
622      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
623    o pkg/aim_v23:
624      - fix an other bug in dissipation heating (grid-cell area was missing).
625    o model/src + pkg/seaice:
626      - add global (multi-tile) linear solver for pair of tri-diagonal system
627        along X and Y lines, respectively for U and V component.
628        Note: 1) MPI and cube-exchange not yet coded.
629            2) probably not accurate for poorly conditioned / large size problem.
630      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
631        default: not compiled and not used.
632    o pkg/seaice:
633      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
634        introduce bi/bj loops and use global_sum_tile_rl instead of
635        mpi_allreduce in seaice_fgmres.F
636      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
637      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
638      - add a verification experiment for JFNK in offline_exf_seaice
639    o verification:
640      - change (for now, only fwd test) offline_exf_seaice experiment:
641        use a re-entrant channel with idealized coastline (trapezoidal shape)
642        at southern boundary to explore seaice dynamics and thermodynamics
643        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
644        secondary test (input.thsice) use thermodynamics only with SST relaxation.
645      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
646    o pkg/exf:
647      - disable "sstExtrapol" when Nr=1
648    o verification:
649      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
650        to test pkg/cheapaml.
651    o pkg/aim_v23 & pkg/shap_filt:
652      - fix dissipation heating (erroneous gravity multiplication factor).
653    o pkg/seaice:
654      - remove unused field pressPre from jfnk solver
655      - rename two subroutines in seaice_preconditioner.F
656    o eesupp/src:
657       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
658    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
659       - remove wrong parts of the rhs and the lhs (were in there
660         because I did not understand the concept of this preconditioner)
661       - add an exchange between u- and v-sweep. This increases communication
662         by a factor of two but improves the convergence of jfnk. Ideally,
663         one would like the u- and v-sweep to be independent. So far within
664         undocumented ifdefs
665       - reorganize the extra computations for printing the residuals
666    o tools/genmake2:
667      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
668        since it's not necessary (and was preventing to use MNC in some cases).
669    
670    checkpoint64a (2012/11/16)
671    o pkg/autodiff:
672      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
673        autodiff_readparms.F no longer depends on calling order (within
674        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
675        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
676        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
677    o pkg/obcs:
678      - adding tidal velocity forcing capability to obcs
679        for usage example, see verification/seaice_obcs/input.tides
680    o pkg/seaice:
681      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
682        SEAICE_LSRrelaxU/V
683      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
684    o pkg/aim_v23:
685      - implement heating from friction (bottom friction and stratospheric drag).
686    o pkg/shap_filt:
687      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
688        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
689    o model/src:
690      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
691        time-constant addMass field from file (addMassFile);
692      - support for heating due to friction (and Kinetic Energy dissipation):
693        add option, run-time switch and 3-D field array + support code ; each pkg
694        or S/R can add heating contribution (if there is a sink of KE); the sum is
695        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
696    o pkg/seaice:
697      - complete merge of ITD code into seaice_growth.F
698        from MITgcm_contrib/torge/itd/code/
699        no verification so far, but Torge Martin tested
700        "1-D test case and Beaufort set up;
701        deliver okay results after 1 model year."
702      - complete merge of SEAICE_SIZE.h into all relevant routines
703      - move computation of eta at Z-points into calc_viscosities
704        + introduce global field etaZ
705        + add different methods for computing etaZ, for now the old
706          method (simple averages of eta to Z-points) is hardwired
707        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
708          seaice_preconditioner
709      - simplify computations for SEAICE_ZETA_SMOOTHREG
710      - seaice_preconditioner:
711        + replace one remaining press by pressLoc (mistake)
712        + adjust printing of residuals
713      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
714        + add (SEAICE.h) and rename some counters (initiliased in
715          seaice_init_fixed.F)
716        + add _BEGIN/END_MASTER (myThid)  around print statements
717        + print total number of iterations and failures over SEAICE_monFreq
718          interval to STDOUT
719      - move control over output-messages by fgmres to seaice_jfnk to save
720        some operations
721      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
722        in order to make restarts with sol .ne. zero (fgmres with restarts)
723        (seaice_jfnk.F, seaice_fgmres.F)
724      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
725        a serious convergence problem when open boundaries are involved
726    o pkg/ggl90: fix computation of control volumes for the case of
727    ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes    ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
728    up half a grid cell from C-centered to W-centered (pointed out by C. Eden)    up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
729  o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC  o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
730  o pkg/autodiff  o pkg/autodiff
731    - Add inAdMode switch for SEAICEuseDYNAMICS:    - Add inAdMode switch for SEAICEuseDYNAMICS:
732      SEAICEuseDYNAMICSinAdMode      SEAICEuseDYNAMICSinAdMode
733      (extend logic in ADAUTODIFF_INADMODE_SET)      (extend logic in ADAUTODIFF_INADMODE_SET)
734  o pkg/seaice  o pkg/seaice
735    - Step 1 of merging ice-thickness distribution (ITD) code from    - Step 1 of merging ice-thickness distribution (ITD) code from

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