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revision 1.1740 by gforget, Tue Sep 18 23:21:52 2012 UTC revision 1.1760 by mlosch, Tue Nov 6 12:31:30 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/seaice/seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
8      a serious convergence problem when open boundaries are involved
9    o pkg/ggl90: fix computation of control volumes for the case of
10      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
11      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
12    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
13    o pkg/autodiff
14      - Add inAdMode switch for SEAICEuseDYNAMICS:
15        SEAICEuseDYNAMICSinAdMode
16        (extend logic in ADAUTODIFF_INADMODE_SET)
17    o pkg/seaice
18      - Step 1 of merging ice-thickness distribution (ITD) code from
19        MITgcm_contrib/torge/itd/ (author: Torge Martin)
20        The code implements concept laid out in Thorndike et al. (1975);
21        code is enabled via CPP flag SEAICE_ITD
22        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
23        code is not complete yet!!
24      - SEAICE_SIZE.h now included in almost all seaice routines
25    o verification (using seaice):
26      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
27        global_ocean.cs32x15.seaice ; update results.
28      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
29      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
30        offline_exf_seaice (previously compiling B-grid).
31    o pkg/exf:
32      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
33        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
34        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
35    o pkg/layers (adjust changes from Sept 19):
36      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
37        this allows to remove "layers_maxNum" dimension from all layers arrays.
38    o pkg/layers (adjust changes from Sept 19):
39      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
40      - snap-shot extended to all type of layers (not just the 1rst type);
41      - remove layers variables when corresponding CPP option is undef.
42    o pkg/layers:
43      - rename pkg/layers variable and add new output (layer exist & un-weighted
44        velocity in layer)
45    o pkg/seaice:
46      - simplify (?) ocean-drag coefficent computations by using
47        the same routine in all three solvers (saves some code lines)
48      - remove global fields DRAGA and DRAGS from C-grid code and
49        declare them locally in lsr.F (the only place where they are
50        still used)
51      - update AD output of lab_sea.evp (very sensitive anyway).
52    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
53      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
54      and SEAICEuseJFNK=.true. A few things to note:
55      - involves a FGMRES, that is parallel but very inefficient,
56        because of many scalar products (global sums) in the Gram-Schmidt
57        orthogonalization method. Needs to be replaced. Original code
58        from J.-F. Lemieux
59      - preconditioner for FGMRES is a stripped down version of LSOR
60      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
61        preconditioner. For the preconditioner, the default is set to 10.
62      - Jacobian times vector is computed with finite differences
63      - marginally related to JFNK-solver: add a smooth regularization for
64        zeta with tanh that will improve convergence (Lemieux and Tremblay,
65        2009) for any implicit solver (not implemented for EVP because EVP
66        does not need this regularization in the first place). Define
67        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
68    o eesupp/src:
69      - check in genmake2 that intrinsic S/R flush is available.
70      - add S/R to flush IO unit (if intrinsic S/R flush is available)
71      - flush standard & error msg unit before MPI termination
72      - if debugMode, flush IO unit after printing msg
73    o pkg/ctrl:
74      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
75        to ctrl_set_unpack_xyz.
76    
77    checkpoint64 (2012/10/09)
78    o pkg/shelfice
79      - in mom_fluxform.F, mom_vecinv.F:
80        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
81        Bug fix KappaRU -> KappaRV
82        does not change verification/isomip but may change other setups
83        (presumably constant KappaRU=KappaRV)
84      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
85    o pkg/obcs:
86      - fixed some indexing bugs in obcs_seaice_sponge.F
87      - added obcs relaxation subroutines for HSALT and HSNOW
88      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
89    o pkg/seaice:
90      - add "multicategory" parameterization for snow in analogy to ice,
91        default is off for now.
92    o pkg/obcs:
93      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
94        see verification/seaice_obcs/input.seaiceSponge for example application.
95      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
96        index setting by master-thread. This fix multi-threads Pb in previous modifs.
97  o pkg/layers :  o pkg/layers :
98   - add diagnostics to pkg/layers    - add diagnostics to pkg/layers
99   - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F    - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
100     (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.      (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
101  o pkg/generic_advdiff/gad_implicit_r.F :  o pkg/generic_advdiff/gad_implicit_r.F :
102    - fix ADVr diagnostics in case of implicit vertical advection.    - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
103  o pkg/seaice/seaice_growth.F :  o pkg/seaice/seaice_growth.F:
104    - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.    - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
105  o pkg/obcs:  o pkg/obcs:
106    - change default setting of OBCS_UVICE_OLD from defined to undef;    - change default setting of OBCS_UVICE_OLD from defined to undef;
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