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revision 1.1746 by mlosch, Fri Oct 5 15:19:00 2012 UTC revision 1.1770 by dimitri, Thu Nov 15 16:04:34 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/obcs:
8      - adding tidal velocity forcing capability to obcs
9        for usage example, see verification/seaice_obcs/input.tides
10    o pkg/seaice:
11      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
12        SEAICE_LSRrelaxU/V
13      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
14    o pkg/aim_v23:
15      - implement heating from friction (bottom friction and stratospheric drag).
16    o pkg/shap_filt:
17      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
18        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
19    o model/src:
20      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
21        time-constant addMass field from file (addMassFile);
22      - support for heating due to friction (and Kinetic Energy dissipation):
23        add option, run-time switch and 3-D field array + support code ; each pkg
24        or S/R can add heating contribution (if there is a sink of KE); the sum is
25        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
26    o pkg/seaice:
27      - complete merge of ITD code into seaice_growth.F
28        from MITgcm_contrib/torge/itd/code/
29        no verification so far, but Torge Martin tested
30        "1-D test case and Beaufort set up;
31        deliver okay results after 1 model year."
32      - complete merge of SEAICE_SIZE.h into all relevant routines
33      - move computation of eta at Z-points into calc_viscosities
34        + introduce global field etaZ
35        + add different methods for computing etaZ, for now the old
36          method (simple averages of eta to Z-points) is hardwired
37        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
38          seaice_preconditioner
39      - simplify computations for SEAICE_ZETA_SMOOTHREG
40      - seaice_preconditioner:
41        + replace one remaining press by pressLoc (mistake)
42        + adjust printing of residuals
43      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
44        + add (SEAICE.h) and rename some counters (initiliased in
45          seaice_init_fixed.F)
46        + add _BEGIN/END_MASTER (myThid)  around print statements
47        + print total number of iterations and failures over SEAICE_monFreq
48          interval to STDOUT
49      - move control over output-messages by fgmres to seaice_jfnk to save
50        some operations
51      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
52        in order to make restarts with sol .ne. zero (fgmres with restarts)
53        (seaice_jfnk.F, seaice_fgmres.F)
54      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
55        a serious convergence problem when open boundaries are involved
56    o pkg/ggl90: fix computation of control volumes for the case of
57      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
58      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
59    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
60    o pkg/autodiff
61      - Add inAdMode switch for SEAICEuseDYNAMICS:
62        SEAICEuseDYNAMICSinAdMode
63        (extend logic in ADAUTODIFF_INADMODE_SET)
64    o pkg/seaice
65      - Step 1 of merging ice-thickness distribution (ITD) code from
66        MITgcm_contrib/torge/itd/ (author: Torge Martin)
67        The code implements concept laid out in Thorndike et al. (1975);
68        code is enabled via CPP flag SEAICE_ITD
69        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
70        code is not complete yet!!
71      - SEAICE_SIZE.h now included in almost all seaice routines
72    o verification (using seaice):
73      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
74        global_ocean.cs32x15.seaice ; update results.
75      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
76      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
77        offline_exf_seaice (previously compiling B-grid).
78    o pkg/exf:
79      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
80        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
81        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
82    o pkg/layers (adjust changes from Sept 19):
83      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
84        this allows to remove "layers_maxNum" dimension from all layers arrays.
85    o pkg/layers (adjust changes from Sept 19):
86      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
87      - snap-shot extended to all type of layers (not just the 1rst type);
88      - remove layers variables when corresponding CPP option is undef.
89    o pkg/layers:
90      - rename pkg/layers variable and add new output (layer exist & un-weighted
91        velocity in layer)
92    o pkg/seaice:
93      - simplify (?) ocean-drag coefficent computations by using
94        the same routine in all three solvers (saves some code lines)
95      - remove global fields DRAGA and DRAGS from C-grid code and
96        declare them locally in lsr.F (the only place where they are
97        still used)
98      - update AD output of lab_sea.evp (very sensitive anyway).
99    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
100      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
101      and SEAICEuseJFNK=.true. A few things to note:
102      - involves a FGMRES, that is parallel but very inefficient,
103        because of many scalar products (global sums) in the Gram-Schmidt
104        orthogonalization method. Needs to be replaced. Original code
105        from J.-F. Lemieux
106      - preconditioner for FGMRES is a stripped down version of LSOR
107      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
108        preconditioner. For the preconditioner, the default is set to 10.
109      - Jacobian times vector is computed with finite differences
110      - marginally related to JFNK-solver: add a smooth regularization for
111        zeta with tanh that will improve convergence (Lemieux and Tremblay,
112        2009) for any implicit solver (not implemented for EVP because EVP
113        does not need this regularization in the first place). Define
114        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
115    o eesupp/src:
116      - check in genmake2 that intrinsic S/R flush is available.
117      - add S/R to flush IO unit (if intrinsic S/R flush is available)
118      - flush standard & error msg unit before MPI termination
119      - if debugMode, flush IO unit after printing msg
120    o pkg/ctrl:
121      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
122        to ctrl_set_unpack_xyz.
123    
124    checkpoint64 (2012/10/09)
125  o pkg/shelfice  o pkg/shelfice
126    in mom_fluxform.F, mom_vecinv.F:    - in mom_fluxform.F, mom_vecinv.F:
127    CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)      CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
128    Bug fix KappaRU -> KappaRV      Bug fix KappaRU -> KappaRV
129    does not change verification/isomip but may change other setups      does not change verification/isomip but may change other setups
130    (presumably constant KappaRU=KappaRV)      (presumably constant KappaRU=KappaRV)
131    - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)    - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
132  o pkg/obcs:  o pkg/obcs:
133    - fixed some indexing bugs in obcs_seaice_sponge.F    - fixed some indexing bugs in obcs_seaice_sponge.F

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