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revision 1.1732 by jmc, Wed Sep 5 23:07:57 2012 UTC revision 1.1779 by jmc, Sun Dec 9 21:01:16 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 verification:
8      - change (for now, only fwd test) offline_exf_seaice experiment:
9        use a re-entrant channel with idealized costline (trapezoidal shape)
10        at southern boundary to explore seaice dynamics and thermodynamics
11        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
12        secondary test (input.thsice) use thermodynamics only with SST relaxation.
13      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
14    o pkg/exf:
15      - disable "sstExtrapol" when Nr=1
16    o verification:
17      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
18        to test pkg/cheapaml.
19    o pkg/aim_v23 & pkg/shap_filt:
20      - fix dissipation heating (erroneous gravity multiplication factor).
21    o pkg/seaice:
22      - remove unused field pressPre from jfnk solver
23      - rename two subroutines in seaice_preconditioner.F
24    o eesupp/src:
25       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
26    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
27       - remove wrong parts of the rhs and the lhs (were in there
28         because I did not understand the concept of this preconditioner)
29       - add an exchange between u- and v-sweep. This increases communication
30         by a factor of two but improves the convergence of jfnk. Ideally,
31         one would like the u- and v-sweep to be independent. So far within
32         undocumented ifdefs
33       - reorganize the extra computations for printing the residuals
34    o tools/genmake2:
35      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
36        since it's not necessary (and was preventing to use MNC in some cases).
37    
38    checkpoint64a (2012/11/16)
39    o pkg/autodiff:
40      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
41        autodiff_readparms.F no longer depends on calling order (within
42        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
43        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
44        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
45    o pkg/obcs:
46      - adding tidal velocity forcing capability to obcs
47        for usage example, see verification/seaice_obcs/input.tides
48    o pkg/seaice:
49      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
50        SEAICE_LSRrelaxU/V
51      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
52    o pkg/aim_v23:
53      - implement heating from friction (bottom friction and stratospheric drag).
54    o pkg/shap_filt:
55      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
56        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
57    o model/src:
58      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
59        time-constant addMass field from file (addMassFile);
60      - support for heating due to friction (and Kinetic Energy dissipation):
61        add option, run-time switch and 3-D field array + support code ; each pkg
62        or S/R can add heating contribution (if there is a sink of KE); the sum is
63        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
64    o pkg/seaice:
65      - complete merge of ITD code into seaice_growth.F
66        from MITgcm_contrib/torge/itd/code/
67        no verification so far, but Torge Martin tested
68        "1-D test case and Beaufort set up;
69        deliver okay results after 1 model year."
70      - complete merge of SEAICE_SIZE.h into all relevant routines
71      - move computation of eta at Z-points into calc_viscosities
72        + introduce global field etaZ
73        + add different methods for computing etaZ, for now the old
74          method (simple averages of eta to Z-points) is hardwired
75        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
76          seaice_preconditioner
77      - simplify computations for SEAICE_ZETA_SMOOTHREG
78      - seaice_preconditioner:
79        + replace one remaining press by pressLoc (mistake)
80        + adjust printing of residuals
81      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
82        + add (SEAICE.h) and rename some counters (initiliased in
83          seaice_init_fixed.F)
84        + add _BEGIN/END_MASTER (myThid)  around print statements
85        + print total number of iterations and failures over SEAICE_monFreq
86          interval to STDOUT
87      - move control over output-messages by fgmres to seaice_jfnk to save
88        some operations
89      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
90        in order to make restarts with sol .ne. zero (fgmres with restarts)
91        (seaice_jfnk.F, seaice_fgmres.F)
92      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
93        a serious convergence problem when open boundaries are involved
94    o pkg/ggl90: fix computation of control volumes for the case of
95      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
96      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
97    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
98    o pkg/autodiff
99      - Add inAdMode switch for SEAICEuseDYNAMICS:
100        SEAICEuseDYNAMICSinAdMode
101        (extend logic in ADAUTODIFF_INADMODE_SET)
102    o pkg/seaice
103      - Step 1 of merging ice-thickness distribution (ITD) code from
104        MITgcm_contrib/torge/itd/ (author: Torge Martin)
105        The code implements concept laid out in Thorndike et al. (1975);
106        code is enabled via CPP flag SEAICE_ITD
107        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
108        code is not complete yet!!
109      - SEAICE_SIZE.h now included in almost all seaice routines
110    o verification (using seaice):
111      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
112        global_ocean.cs32x15.seaice ; update results.
113      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
114      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
115        offline_exf_seaice (previously compiling B-grid).
116    o pkg/exf:
117      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
118        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
119        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
120    o pkg/layers (adjust changes from Sept 19):
121      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
122        this allows to remove "layers_maxNum" dimension from all layers arrays.
123    o pkg/layers (adjust changes from Sept 19):
124      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
125      - snap-shot extended to all type of layers (not just the 1rst type);
126      - remove layers variables when corresponding CPP option is undef.
127    o pkg/layers:
128      - rename pkg/layers variable and add new output (layer exist & un-weighted
129        velocity in layer)
130    o pkg/seaice:
131      - simplify (?) ocean-drag coefficent computations by using
132        the same routine in all three solvers (saves some code lines)
133      - remove global fields DRAGA and DRAGS from C-grid code and
134        declare them locally in lsr.F (the only place where they are
135        still used)
136      - update AD output of lab_sea.evp (very sensitive anyway).
137    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
138      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
139      and SEAICEuseJFNK=.true. A few things to note:
140      - involves a FGMRES, that is parallel but very inefficient,
141        because of many scalar products (global sums) in the Gram-Schmidt
142        orthogonalization method. Needs to be replaced. Original code
143        from J.-F. Lemieux
144      - preconditioner for FGMRES is a stripped down version of LSOR
145      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
146        preconditioner. For the preconditioner, the default is set to 10.
147      - Jacobian times vector is computed with finite differences
148      - marginally related to JFNK-solver: add a smooth regularization for
149        zeta with tanh that will improve convergence (Lemieux and Tremblay,
150        2009) for any implicit solver (not implemented for EVP because EVP
151        does not need this regularization in the first place). Define
152        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
153    o eesupp/src:
154      - check in genmake2 that intrinsic S/R flush is available.
155      - add S/R to flush IO unit (if intrinsic S/R flush is available)
156      - flush standard & error msg unit before MPI termination
157      - if debugMode, flush IO unit after printing msg
158    o pkg/ctrl:
159      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
160        to ctrl_set_unpack_xyz.
161    
162    checkpoint64 (2012/10/09)
163    o pkg/shelfice
164      - in mom_fluxform.F, mom_vecinv.F:
165        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
166        Bug fix KappaRU -> KappaRV
167        does not change verification/isomip but may change other setups
168        (presumably constant KappaRU=KappaRV)
169      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
170    o pkg/obcs:
171      - fixed some indexing bugs in obcs_seaice_sponge.F
172      - added obcs relaxation subroutines for HSALT and HSNOW
173      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
174    o pkg/seaice:
175      - add "multicategory" parameterization for snow in analogy to ice,
176        default is off for now.
177    o pkg/obcs:
178      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
179        see verification/seaice_obcs/input.seaiceSponge for example application.
180      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
181        index setting by master-thread. This fix multi-threads Pb in previous modifs.
182    o pkg/layers :
183      - add diagnostics to pkg/layers
184      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
185        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
186    o pkg/generic_advdiff/gad_implicit_r.F :
187      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
188    o pkg/seaice/seaice_growth.F:
189      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
190    o pkg/obcs:
191      - change default setting of OBCS_UVICE_OLD from defined to undef;
192      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
193        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
194      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
195      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
196        with Southern & Western OB at a tile edge (at least in a simple set-up).
197    o pkg/obcs:
198      - change settings of OB index in case OB coincides with tile edge (shared by
199        2 tiles), so that common OB location is registered by both tiles (instead of
200        only 1). However, for Southern and Western OB, index value = 0 is not
201        recognized as valid OB index (=default null value) and needs to be fixed.
202      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
203      - new parameter "OB_indexNone" for null index value (for now, still zero)
204        to replace hard-coded null index value of zero.
205    o pkg/exch2:
206      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
207        always check buffer-size (but outside the loop); move checking for valid
208        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
209        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
210    o pkg/ctrl (pack & unpack):
211      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
212        (locally defined) for different variables (+ remove the variable-specific
213        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
214        (to be extended to other local file names in ctrl.h).
215    o pkg/flt:
216      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
217    o pkg/mdsio:
218      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
219    o tools/genmake2:
220      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
221        (added by Alistair in version 1.51 for building without make depend);
222      - remove Header files list (H_SRC_FILES) from the dependence of targets
223         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
224        place in version 1.23): this save going through staf when unrelated header
225        file has been modified.
226       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
227        "make depend" step, still need to do "make links" before "make adtaf".
228    o eesupp/src (+ few pkg src files) & genmake2:
229      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
230      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
231      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
232         upper/lower case ; account for space between "#" and undef/define)
233    o pkg/flt (with exch2):
234      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
235      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
236    
237  checkpoint63s (2012/09/05)  checkpoint63s (2012/09/05)
238  o pkg/ecco:  o pkg/ecco:
239    - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.    - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.

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