/[MITgcm]/MITgcm/doc/tag-index
ViewVC logotype

Diff of /MITgcm/doc/tag-index

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.1766 by jmc, Sat Nov 10 00:16:11 2012 UTC revision 1.1827 by jmc, Sun Feb 17 23:10:07 2013 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint64d (2013/02/17)
8    o pkg/monitor (angular momentum):
9      - do not add Eta contribution to the total AM if using rigid-lid;
10      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
11      - horizontal discretisation: compute Zonal wind contribution separately for
12        each component (instead of from cell centered averaged) and use the 4
13        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
14      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
15        FreeSurf) if using vectorInvariant momentum.
16    o model/src (horizontal grid):
17      - move initialisation of all horizontal grid arrays to null value
18        from specific horizontal grid S/R to main S/R INI_GRID;
19      - add 2 new arrays to project model C-grid velocity on to zonal direction
20        (similar to AngleCosC & -AngleSinC but at U and V point location) and
21        compute them in S/R CALC_GRID_ANGLES.
22    o pkg/seaice: replace a hard coded parameter by a runtime parameter
23        SEAICE_JFNK_tolIter
24    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
25        preconditioner for JFNK (run LSR into the overlaps as far as possible,
26        i.e OLx/y-2, but overwrite the solution in the overlaps)
27      - extend loop range in seaice_calc_viscosity
28      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
29      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
30      - slightly modify loops in tridiagonal solver lsr-preconditioner
31      - by default remove the extra exchange in seaice_preconditioner with a
32        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
33      - modify offline_exf_seaice so that old results without RAS are reproduced
34        for output.dyn_jfnk.txt
35      in seaice_fgmres.F (unrelated to RAS)
36      - add a cpp-flag option for a re-ordered mapping (potentially more
37        efficient), but because this changes the results, turn it off by
38        default
39      - replace the save statement by local common blocks
40    o utils/matlab:
41      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
42      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
43        instead of local script "load_cs.m".
44    o pkg/seaice:
45      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
46        to the scalarProductMetric and the unrolling. By chance this does not
47        change the verification experiment, because of the particular domain
48        decomposition
49    o pkg/diagnostics:
50      - change default missing_value from UNSET_RL to -999.
51    o pkg/layers: improve vectorization of layers_fluxcalc.F
52      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
53        time spent in this routine by more than a factor of 3 on an NEC-SX8
54      - step 2: replace search algorithm by a bisection algorithm found in
55        Press et al. Numerical Recipes in Fortran. This algorithm can be
56        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
57        For now, use this algorithm only for TARGET_NEC_SX defined.
58      - moved the search algorithm into a separate subroutine, that is kept
59        within the same file for automatic inlining.
60      - modified catching potential errors
61    o pkg/ecco:
62      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
63    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
64      - modifications for ALLOW_GENTIM2D_CONTROL
65      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
66      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
67      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
68      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
69    o model/src:
70      - account for moist thermodynamics in (dry) potential temperature equation;
71        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
72        and cpl_aim+ocn.
73      - also switch to standard compiler (gfortran, was using ifort previously)
74        for fizhi-cs experiments reference output.
75    o pkg/ctrl:
76      - 1st step toward generic time-varying control variable (2D) via CPP option
77        ALLOW_GENTIM2D_CONTROL
78      - note new namelist ctrl_nml_genarr in data.ctrl
79    o verification/global_ocean.cs32x15:
80      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
81        thsice calling sequence and update "output.icedyn.txt" output file.
82    o pkg/ptracers:
83      - from Ryan A.: code to allow to restart a tracer at regular time interval
84        specifying a reset frequency and a reset-phase (for each tracers).
85    o pkg/thsice:
86      - implement new sequence of calls for thsice+seaice:
87          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
88          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
89      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
90        in CPP_OPTIONS.h) to recover old sequence;
91      - update diagnostics for Intermediate State thsice diagnostics: now filled
92        just before advection (instead of just after advection in old sequence);
93      - update output of experiment offline_exf_seaice (standard test);
94      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
95        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
96    o pkg/aim_v23:
97      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
98      - use standard pkg/mdsio routines to read & write CO2 pickup file;
99      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
100      - Implement new sequence of calls for seaice advection (with thsice and
101        seaice diffusion): do ice advection after ice-Thermodynamic (previously
102        was done before); change aim_do_physics.F (split the bi,bj loops block);
103      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
104    o pkg/thsice:
105      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
106        where just seaice diffusion is used without seaice-dynamics.
107    
108    checkpoint64c (2013/01/18)
109    o pkg/seaice:
110      - add a parameter JFNKres_tFac that can replace JFNKres_t
111        (= JFNKres_tFac*JFNKresidual before JFNK solver)
112      - add a line search option to the JFNK solver
113      - move update of u/vIce and computation of initial residual into a separate
114        routine (same file); makes the code a little easier to read (?)
115      - the line search requires computation of the residual and for some reason
116        I cannot do the update of u/vIce at the beginning of the Newton loop
117        without changing the results, so we move computation of the new residual
118        also to the end of the Newton loop, even without the line search
119    o pkg/mdsio:
120      - write missing value (corresponding to undefined array value) to meta files;
121        skip this if missing value is one (UNSET_RL would be a better value for the
122        case of undefined missing value but it's current the default missing-value);
123        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
124    o pkg/exf & thsice:
125      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
126        diagnostics) even when SHORTWAVE_HEATING is #undef;
127    o verification/cfc_example:
128      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
129        illustrate how to use it).
130    o verification/offline_exf_seaice:
131      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
132        files to only one time-record.
133      in input.thermo: narrow the 2 bands of low initial ice-concentration near
134        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
135        snapshot output; same mcPheePiston value as in thsice with
136        surf-current=0.2m/s.
137      in input.thsice: similar set-up as in input.thermo (channel with same seaice
138        initial conditions).
139    o verification/cfc_example:
140      - update file "data" with more standard choice (default rotationPeriod,
141        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
142        set deltaTFreeSurf to deltaTtracer) and update the output.
143    o pkg/layers:
144      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
145      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
146    o verification/offline_exf_seaice:
147      - set all {field}period to zero for constant-in-time forcing (not tested
148        anywhere else).
149    o verification/offline_exf_seaice:
150      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
151      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
152    o model/src:
153      - implement Finite-Volume method for (hydrostatic) presure gradient
154        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
155    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
156      - In order to be compatible with the default EVP code, this requires changing
157        the EVP code around a little; and because any small change immediately
158        breaks the lab_sea.hb87 verification experiment, the reference output is
159        updated two times (each time the remaining aggrement was only 2 digits):
160        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
161        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
162        The adjoint test lab_sea.evp also needed to be updated.
163      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
164        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
165        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
166        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
167        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
168        kept obscure, because I need to test it a little more.
169    o pkg/cheapaml:
170      - fix few incorrect type (_RL/_RS) in subroutine calls.
171    o pkg/seaice:
172      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
173        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
174    o model/src:
175      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
176        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
177        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
178    o pkg/cheapaml:
179      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
180        update output of experiment cheapAML_box.
181      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
182        and set them only in one place (cheapaml_readparms.F).
183      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
184      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
185        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
186    o model/src/the_main_loop.F:
187      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
188    o pkg/seaice:
189      - remove legacy branch code.
190      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
191    o verification/*/code*/SEAICE_OPTIONS.h:
192      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
193        SEAICE_CAP_HEFF).
194    o pkg/cheapaml:
195      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
196        to load new forcing fields.
197      - add missing "_d 0" where it's needed; + some editing (improve indentation).
198      - remove switch to "-r8" compiler option (no longer needed) in verification
199        cheapAML_box, keep same output (small trucation error differences).
200    o verification/offline_exf_seaice:
201      - add thermodynamics only test.
202    o verification/cheapAML_box:
203      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
204        keep same output (same 14 digits for cg2d).
205      - switch on "-r8" compiler option (some numerical values are missing
206        the "_d 0") and update output (only 6 digits for cg2d were preserved).
207    
208    checkpoint64b (2012/12/24)
209    o pkg/cheapaml:
210      - remove un-used variables (Qnet,EmPmR) from pickup files.
211      - store tendency of advected variables into cheapaml pickup file
212        and fix the AB-2 restart.
213    o verification/offline_exf_seaice and lab_sea adjoint:
214      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
215      - switch to 4 time steps in offline, consistent with lab_sea.
216      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
217      - update results after change of experiment seaice.
218    o pkg/seaice:
219      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
220        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
221        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
222        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
223    o model/src:
224      - add run-time parameter to select CG2D solver minimum-residual solution
225        (in case of a poor convergence).
226    o pkg/seaice/seaice_lsr.F
227      - move calculation of matrix coefficients into new
228        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
229        file; the main purpose of this change is to be able to reuse the code
230        in S/R SEAICE_PRECONDITIONER
231      - modify the computation of the residual so that the mass of sea-ice
232        is not used twice; this simplifies the calculations, but since
233        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
234        not tested in testreport---this does not affect the testreport results.
235    o verification/seaice_obcs:
236      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
237        verification/lab_sea/input.salt_plume; changes results/output.txt*
238    o model/src:
239      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
240    o pkg/seaice:
241      - improve description of parameters in seaice_fgmres.F and start
242        cleaning up the code
243      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
244        second argument
245      - add a metric based on grid cell area to SEAICE_SCALPROD; update
246        results of offline_exf_seaice.dyn_jfnk
247      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
248    o pkg/aim_v23:
249      - fix an other bug in dissipation heating (grid-cell area was missing).
250    o model/src + pkg/seaice:
251      - add global (multi-tile) linear solver for pair of tri-diagonal system
252        along X and Y lines, respectively for U and V component.
253        Note: 1) MPI and cube-exchange not yet coded.
254            2) probably not accurate for poorly conditioned / large size problem.
255      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
256        default: not compiled and not used.
257    o pkg/seaice:
258      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
259        introduce bi/bj loops and use global_sum_tile_rl instead of
260        mpi_allreduce in seaice_fgmres.F
261      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
262      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
263      - add a verification experiment for JFNK in offline_exf_seaice
264    o verification:
265      - change (for now, only fwd test) offline_exf_seaice experiment:
266        use a re-entrant channel with idealized coastline (trapezoidal shape)
267        at southern boundary to explore seaice dynamics and thermodynamics
268        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
269        secondary test (input.thsice) use thermodynamics only with SST relaxation.
270      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
271    o pkg/exf:
272      - disable "sstExtrapol" when Nr=1
273    o verification:
274      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
275        to test pkg/cheapaml.
276    o pkg/aim_v23 & pkg/shap_filt:
277      - fix dissipation heating (erroneous gravity multiplication factor).
278    o pkg/seaice:
279      - remove unused field pressPre from jfnk solver
280      - rename two subroutines in seaice_preconditioner.F
281    o eesupp/src:
282       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
283    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
284       - remove wrong parts of the rhs and the lhs (were in there
285         because I did not understand the concept of this preconditioner)
286       - add an exchange between u- and v-sweep. This increases communication
287         by a factor of two but improves the convergence of jfnk. Ideally,
288         one would like the u- and v-sweep to be independent. So far within
289         undocumented ifdefs
290       - reorganize the extra computations for printing the residuals
291    o tools/genmake2:
292      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
293        since it's not necessary (and was preventing to use MNC in some cases).
294    
295    checkpoint64a (2012/11/16)
296    o pkg/autodiff:
297      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
298        autodiff_readparms.F no longer depends on calling order (within
299        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
300        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
301        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
302    o pkg/obcs:
303      - adding tidal velocity forcing capability to obcs
304        for usage example, see verification/seaice_obcs/input.tides
305    o pkg/seaice:
306      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
307        SEAICE_LSRrelaxU/V
308      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
309    o pkg/aim_v23:
310      - implement heating from friction (bottom friction and stratospheric drag).
311    o pkg/shap_filt:
312      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
313        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
314  o model/src:  o model/src:
315    - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in    - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
316      time-constant addMass field from file (addMassFile);      time-constant addMass field from file (addMassFile);

Legend:
Removed from v.1.1766  
changed lines
  Added in v.1.1827

  ViewVC Help
Powered by ViewVC 1.1.22