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revision 1.1604 by gforget, Sat Mar 3 03:46:25 2012 UTC revision 1.1618 by mlosch, Mon Mar 12 16:51:37 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 :  o pkg/shelfice
8     - improve computation of friction velocity for velocity dependent
9       exchange coefficients: include velocities into SHELFICEBoundaryLayer
10       block to average velocities vertically
11     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
12    o Modify diagonal solvers, now three versions (upon request):
13      #ifndef SOLVE_DIAGONAL_AUTODIFF
14        1. default version (dating back a while ago)
15      #else /* def SOLVE_DIAGONAL_AUTODIFF */
16      # ifdef SOLVE_DIAGONAL_KINNER
17        2. adjoinable version with k-innermost loop (G. Forget)
18      # else
19        3. adjoinable vectorized version of 2.
20      # endif
21      #endif /* SOLVE_DIAGONAL_AUTODIFF */
22      All flags are currently set within routines, but could/should be moved to CPP-options.
23      Array bounds for 1. are as before, for 2.,3. cover the entire domain
24      (could be changed for 1. too).
25    o verification/lab_sea (fwd):
26      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
27        use 7 categories (except hb87), new solve4temp params (except salt_plume),
28        constant salinity (=4) or variable salinity (salt_plume) done through
29        SItracer.
30    o pkg/seaice:
31      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
32      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
33         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
34        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
35        SEAICE_freeze got retired) but already better than previously with
36        SEAICE_freeze=123456.7 deg.C;
37      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
38        (safer multi-threaded setting); always set SEAICEuseEVP;
39      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
40        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
41        stop if multiple specifications for the same coeff; make sure default
42        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
43    o pkg/obcs:
44      - allow to switch to upwind 1rst order advection scheme for the advective
45        flux computation at the open-boundary; disabled for adjoint built.
46    o pkg/ptracers:
47      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
48      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
49      - add parameter to decide when to start a tracer; use internal flag to
50        know which tracer to step-forward; switch this internal flag at the top
51        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
52        for adjoint built.
53    o pkg/seaice:
54      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
55      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
56      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
57    o pkg/ecco:
58      - fix writing of output file DiagnosCost_ClimSalt/Theta
59        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
60    o pkg/seaice:
61      - add missing initialisation of COR_ICE array in dynsolver.F
62      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
63        compiled either way, and is tested in all exps (multidim was only tested
64        in lab_sea ad before).
65      - cosmetic change to prepare for future addition of ITD. no change to results.
66        no defaults change.
67      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
68      - by lack of adequate verification experiments, I further used custom versions
69        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
70        should be correct.
71      - avoid recomputations in ad.
72    o array initialisation in adjoint mode:
73      1) pkg/mom_common/mom_calc_ke.F:
74        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
75        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
76        part this initialisation is gone, resulting in Floating Point Exception
77        (caught by open64 compiler with debug option).
78      2) model/src/convective_weights.F
79        set output convectCount over the full array range (instead of doing
80        an update): this fix a similar issue when called within recomputation (adjoint)
81        which could by-pass the initialisation (normally done in the caller S/R).
82    o pkg/seaice:
83    - final version of turbulent flux params, as agreed at MIT ice meet:    - final version of turbulent flux params, as agreed at MIT ice meet:
84         SEAICE_mcPheePiston (default is ~ 0.000875)         SEAICE_mcPheePiston (default is ~ 0.000875)
85         SEAICE_mcPheeTaper (default is 0.)         SEAICE_mcPheeTaper (default is 0.)
86         SEAICE_frazilFrac (defualt is 1.)         SEAICE_frazilFrac (defualt is 1.)
87         SEAICE_mcPheeStepFunc (default is false)         SEAICE_mcPheeStepFunc (default is false)
88    - changes results at trunction error level.    - changes results at trunction error level
89  o added pkg/frazil - see frazil_description.tex for details    - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
90    o added pkg/frazil:
91      - see frazil_description.tex for details
92      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
93  o pkg/shelfice/shelfice_thermodynamics.F  o pkg/shelfice/shelfice_thermodynamics.F
94    - fix exponents for velocity dependent exchange coefficients: change    - fix exponents for velocity dependent exchange coefficients: change
95      from 2/3(=0) to 0.66666666666666667      from 2/3(=0) to 0.66666666666666667
96    - move computation of velocity dependent exchange coefficients into    - move computation of velocity dependent exchange coefficients into
97      separate loop, so that it applies to both thermodynamics      separate loop, so that it applies to both thermodynamics
98    - move some divisions by constants out of loops    - move some divisions by constants out of loops
99    
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