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revision 1.1729 by jmc, Tue Sep 4 01:04:23 2012 UTC revision 1.1794 by jmc, Thu Dec 27 20:09:11 2012 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/cheapaml:
8      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
9        to load new forcing fields.
10      - add missing "_d 0" where it's needed; + some editing (improve indentation).
11      - remove switch to "-r8" compiler option (no longer needed) in verification
12        cheapAML_box, keep same output (small trucation error differences).
13    o verification/offline_exf_seaice:
14      - add thermodynamics only test.
15    o verification/cheapAML_box:
16      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
17        keep same output (same 14 digits for cg2d).
18      - switch on "-r8" compiler option (some numerical values are missing
19        the "_d 0") and update output (only 6 digits for cg2d were preserved).
20    
21    checkpoint64b (2012/12/24)
22    o pkg/cheapaml:
23      - remove un-used variables (Qnet,EmPmR) from pickup files.
24      - store tendency of advected variables into cheapaml pickup file
25        and fix the AB-2 restart.
26    o verification/offline_exf_seaice and lab_sea adjoint:
27      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
28      - switch to 4 time steps in offline, consistent with lab_sea.
29      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
30      - update results after change of experiment seaice.
31    o pkg/seaice:
32      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
33        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
34        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
35        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
36    o model/src:
37      - add run-time parameter to select CG2D solver minimum-residual solution
38        (in case of a poor convergence).
39    o pkg/seaice/seaice_lsr.F
40      - move calculation of matrix coefficients into new
41        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
42        file; the main purpose of this change is to be able to reuse the code
43        in S/R SEAICE_PRECONDITIONER
44      - modify the computation of the residual so that the mass of sea-ice
45        is not used twice; this simplifies the calculations, but since
46        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
47        not tested in testreport---this does not affect the testreport results.
48    o verification/seaice_obcs:
49      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
50        verification/lab_sea/input.salt_plume; changes results/output.txt*
51    o model/src:
52      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
53    o pkg/seaice:
54      - improve description of parameters in seaice_fgmres.F and start
55        cleaning up the code
56      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
57        second argument
58      - add a metric based on grid cell area to SEAICE_SCALPROD; update
59        results of offline_exf_seaice.dyn_jfnk
60      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
61    o pkg/aim_v23:
62      - fix an other bug in dissipation heating (grid-cell area was missing).
63    o model/src + pkg/seaice:
64      - add global (multi-tile) linear solver for pair of tri-diagonal system
65        along X and Y lines, respectively for U and V component.
66        Note: 1) MPI and cube-exchange not yet coded.
67            2) probably not accurate for poorly conditioned / large size problem.
68      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
69        default: not compiled and not used.
70    o pkg/seaice:
71      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
72        introduce bi/bj loops and use global_sum_tile_rl instead of
73        mpi_allreduce in seaice_fgmres.F
74      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
75      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
76      - add a verification experiment for JFNK in offline_exf_seaice
77    o verification:
78      - change (for now, only fwd test) offline_exf_seaice experiment:
79        use a re-entrant channel with idealized coastline (trapezoidal shape)
80        at southern boundary to explore seaice dynamics and thermodynamics
81        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
82        secondary test (input.thsice) use thermodynamics only with SST relaxation.
83      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
84    o pkg/exf:
85      - disable "sstExtrapol" when Nr=1
86    o verification:
87      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
88        to test pkg/cheapaml.
89    o pkg/aim_v23 & pkg/shap_filt:
90      - fix dissipation heating (erroneous gravity multiplication factor).
91    o pkg/seaice:
92      - remove unused field pressPre from jfnk solver
93      - rename two subroutines in seaice_preconditioner.F
94    o eesupp/src:
95       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
96    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
97       - remove wrong parts of the rhs and the lhs (were in there
98         because I did not understand the concept of this preconditioner)
99       - add an exchange between u- and v-sweep. This increases communication
100         by a factor of two but improves the convergence of jfnk. Ideally,
101         one would like the u- and v-sweep to be independent. So far within
102         undocumented ifdefs
103       - reorganize the extra computations for printing the residuals
104    o tools/genmake2:
105      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
106        since it's not necessary (and was preventing to use MNC in some cases).
107    
108    checkpoint64a (2012/11/16)
109    o pkg/autodiff:
110      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
111        autodiff_readparms.F no longer depends on calling order (within
112        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
113        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
114        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
115    o pkg/obcs:
116      - adding tidal velocity forcing capability to obcs
117        for usage example, see verification/seaice_obcs/input.tides
118    o pkg/seaice:
119      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
120        SEAICE_LSRrelaxU/V
121      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
122    o pkg/aim_v23:
123      - implement heating from friction (bottom friction and stratospheric drag).
124    o pkg/shap_filt:
125      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
126        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
127    o model/src:
128      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
129        time-constant addMass field from file (addMassFile);
130      - support for heating due to friction (and Kinetic Energy dissipation):
131        add option, run-time switch and 3-D field array + support code ; each pkg
132        or S/R can add heating contribution (if there is a sink of KE); the sum is
133        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
134    o pkg/seaice:
135      - complete merge of ITD code into seaice_growth.F
136        from MITgcm_contrib/torge/itd/code/
137        no verification so far, but Torge Martin tested
138        "1-D test case and Beaufort set up;
139        deliver okay results after 1 model year."
140      - complete merge of SEAICE_SIZE.h into all relevant routines
141      - move computation of eta at Z-points into calc_viscosities
142        + introduce global field etaZ
143        + add different methods for computing etaZ, for now the old
144          method (simple averages of eta to Z-points) is hardwired
145        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
146          seaice_preconditioner
147      - simplify computations for SEAICE_ZETA_SMOOTHREG
148      - seaice_preconditioner:
149        + replace one remaining press by pressLoc (mistake)
150        + adjust printing of residuals
151      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
152        + add (SEAICE.h) and rename some counters (initiliased in
153          seaice_init_fixed.F)
154        + add _BEGIN/END_MASTER (myThid)  around print statements
155        + print total number of iterations and failures over SEAICE_monFreq
156          interval to STDOUT
157      - move control over output-messages by fgmres to seaice_jfnk to save
158        some operations
159      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
160        in order to make restarts with sol .ne. zero (fgmres with restarts)
161        (seaice_jfnk.F, seaice_fgmres.F)
162      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
163        a serious convergence problem when open boundaries are involved
164    o pkg/ggl90: fix computation of control volumes for the case of
165      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
166      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
167    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
168    o pkg/autodiff
169      - Add inAdMode switch for SEAICEuseDYNAMICS:
170        SEAICEuseDYNAMICSinAdMode
171        (extend logic in ADAUTODIFF_INADMODE_SET)
172    o pkg/seaice
173      - Step 1 of merging ice-thickness distribution (ITD) code from
174        MITgcm_contrib/torge/itd/ (author: Torge Martin)
175        The code implements concept laid out in Thorndike et al. (1975);
176        code is enabled via CPP flag SEAICE_ITD
177        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
178        code is not complete yet!!
179      - SEAICE_SIZE.h now included in almost all seaice routines
180    o verification (using seaice):
181      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
182        global_ocean.cs32x15.seaice ; update results.
183      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
184      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
185        offline_exf_seaice (previously compiling B-grid).
186    o pkg/exf:
187      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
188        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
189        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
190    o pkg/layers (adjust changes from Sept 19):
191      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
192        this allows to remove "layers_maxNum" dimension from all layers arrays.
193    o pkg/layers (adjust changes from Sept 19):
194      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
195      - snap-shot extended to all type of layers (not just the 1rst type);
196      - remove layers variables when corresponding CPP option is undef.
197    o pkg/layers:
198      - rename pkg/layers variable and add new output (layer exist & un-weighted
199        velocity in layer)
200    o pkg/seaice:
201      - simplify (?) ocean-drag coefficent computations by using
202        the same routine in all three solvers (saves some code lines)
203      - remove global fields DRAGA and DRAGS from C-grid code and
204        declare them locally in lsr.F (the only place where they are
205        still used)
206      - update AD output of lab_sea.evp (very sensitive anyway).
207    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
208      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
209      and SEAICEuseJFNK=.true. A few things to note:
210      - involves a FGMRES, that is parallel but very inefficient,
211        because of many scalar products (global sums) in the Gram-Schmidt
212        orthogonalization method. Needs to be replaced. Original code
213        from J.-F. Lemieux
214      - preconditioner for FGMRES is a stripped down version of LSOR
215      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
216        preconditioner. For the preconditioner, the default is set to 10.
217      - Jacobian times vector is computed with finite differences
218      - marginally related to JFNK-solver: add a smooth regularization for
219        zeta with tanh that will improve convergence (Lemieux and Tremblay,
220        2009) for any implicit solver (not implemented for EVP because EVP
221        does not need this regularization in the first place). Define
222        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
223    o eesupp/src:
224      - check in genmake2 that intrinsic S/R flush is available.
225      - add S/R to flush IO unit (if intrinsic S/R flush is available)
226      - flush standard & error msg unit before MPI termination
227      - if debugMode, flush IO unit after printing msg
228    o pkg/ctrl:
229      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
230        to ctrl_set_unpack_xyz.
231    
232    checkpoint64 (2012/10/09)
233    o pkg/shelfice
234      - in mom_fluxform.F, mom_vecinv.F:
235        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
236        Bug fix KappaRU -> KappaRV
237        does not change verification/isomip but may change other setups
238        (presumably constant KappaRU=KappaRV)
239      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
240    o pkg/obcs:
241      - fixed some indexing bugs in obcs_seaice_sponge.F
242      - added obcs relaxation subroutines for HSALT and HSNOW
243      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
244    o pkg/seaice:
245      - add "multicategory" parameterization for snow in analogy to ice,
246        default is off for now.
247    o pkg/obcs:
248      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
249        see verification/seaice_obcs/input.seaiceSponge for example application.
250      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
251        index setting by master-thread. This fix multi-threads Pb in previous modifs.
252    o pkg/layers :
253      - add diagnostics to pkg/layers
254      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
255        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
256    o pkg/generic_advdiff/gad_implicit_r.F :
257      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
258    o pkg/seaice/seaice_growth.F:
259      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
260    o pkg/obcs:
261      - change default setting of OBCS_UVICE_OLD from defined to undef;
262      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
263        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
264      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
265      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
266        with Southern & Western OB at a tile edge (at least in a simple set-up).
267    o pkg/obcs:
268      - change settings of OB index in case OB coincides with tile edge (shared by
269        2 tiles), so that common OB location is registered by both tiles (instead of
270        only 1). However, for Southern and Western OB, index value = 0 is not
271        recognized as valid OB index (=default null value) and needs to be fixed.
272      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
273      - new parameter "OB_indexNone" for null index value (for now, still zero)
274        to replace hard-coded null index value of zero.
275    o pkg/exch2:
276      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
277        always check buffer-size (but outside the loop); move checking for valid
278        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
279        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
280    o pkg/ctrl (pack & unpack):
281      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
282        (locally defined) for different variables (+ remove the variable-specific
283        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
284        (to be extended to other local file names in ctrl.h).
285    o pkg/flt:
286      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
287    o pkg/mdsio:
288      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
289    o tools/genmake2:
290      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
291        (added by Alistair in version 1.51 for building without make depend);
292      - remove Header files list (H_SRC_FILES) from the dependence of targets
293         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
294        place in version 1.23): this save going through staf when unrelated header
295        file has been modified.
296       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
297        "make depend" step, still need to do "make links" before "make adtaf".
298    o eesupp/src (+ few pkg src files) & genmake2:
299      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
300      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
301      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
302         upper/lower case ; account for space between "#" and undef/define)
303    o pkg/flt (with exch2):
304      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
305      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
306    
307    checkpoint63s (2012/09/05)
308    o pkg/ecco:
309      - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.
310      - add more relevant #ifdef ALLOW_SMOOTH ones.
311      - sort out useAtmWind, useSMOOTH, ctrlSmoothCorrel2D.
312    o pkg/ctrl:
313      - CTRL_OPTIONS.h : document CPPs related to smoothing; ALLOW_SMOOTH_CORREL2D/3D,
314        ALLOW_CTRL_SMOOTH, ALLOW_SMOOTH_CTRL2D, ALLOW_SMOOTH_CTRL3D.
315      - ctrl.h : document run time params doInitXX, doMainPack, doMainUnpack, doPackDiag,
316        doSinglePrecTapelev (audodiff param!), ctrlSmoothCorrel2D (new) and
317        ctrlSmoothCorrel3D (new).
318        The added ctrlSmoothCorrel2D/3D replace the old ALLOW_SMOOTH_CORREL2D/3D CPP.
319      - ctrl_readparms.F : initialise ctrlSmoothCorrel2D/3D and read from namelist.
320      - ctrl_init.F ctrl_pack.F ctrl_unpack.F : switch off ustress/vstress
321        controls when useAtmWind, and vice versa.
322      - ctrl_map_ini_ecco.F : UVEL0, VVEL0, edtaux, edtauy cannot be smoothed as tracers.
323      - ctrl_get_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL2D with
324          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel2D, IF useSMOOTH.
325      - ctrl_map_ini_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL3D with
326          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel3D, IF useSMOOTH.
327      - ctrl_set_pack_xy[z].F, ctrl_set_unpack_xy[z].F:
328        replace ALLOW_SMOOTH_CORREL2D/3D brackets with ctrlSmoothCorrel2D/3D.
329    o pkg/smooth:
330      - remove un-necessary includes.
331      - remove ALLOW_SMOOTH*D and ALLOW_SMOOTH_CORREL*D brakets.
332        Those CPP options were never defined, and not necessary.
333    o model/src:
334      - fix CPP brackets in ini_mixing.F (GM_background_K belongs to gmredi).
335      - standard treatment of useSMOOTH.
336    o pkg/autodiff:
337      - add LOGICAL useGGL90inAdMode, useGGL90inFwdMode, useSALT_PLUMEinAdMode,
338        useSALT_PLUMEInFwdMode allowing to switch off ggl90 and salt_plume adjoint.
339  o pkg/exch2:  o pkg/exch2:
340    - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)    - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)
341      + to remove ALWAYS_USE_MPI in source code that TAF does not see.      + start to remove ALWAYS_USE_MPI in source code that TAF does not see.
342    - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag    - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag
343      and tiles to process mapping.      and tiles to process mapping.
344    - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)    - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)

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