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revision 1.1776 by mlosch, Mon Nov 26 08:05:09 2012 UTC revision 1.1802 by jmc, Sun Jan 6 20:36:27 2013 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 verification/offline_exf_seaice:
8      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
9      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
10    o model/src:
11      - implement Finite-Volume method for (hydrostatic) presure gradient
12        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
13    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
14      - In order to be compatible with the default EVP code, this requires changing
15        the EVP code around a little; and because any small change immediately
16        breaks the lab_sea.hb87 verification experiment, the reference output is
17        updated two times (each time the remaining aggrement was only 2 digits):
18        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
19        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
20        The adjoint test lab_sea.evp also needed to be updated.
21      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
22        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
23        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
24        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
25        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
26        kept obscure, because I need to test it a little more.
27    o pkg/cheapaml:
28      - fix few incorrect type (_RL/_RS) in subroutine calls.
29    o pkg/seaice:
30      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
31        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
32    o model/src:
33      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
34        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
35        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
36    o pkg/cheapaml:
37      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
38        update output of experiment cheapAML_box.
39      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
40        and set them only in one place (cheapaml_readparms.F).
41      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
42      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
43        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
44    o model/src/the_main_loop.F:
45      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
46    o pkg/seaice:
47      - remove legacy branch code.
48      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
49    o verification/*/code*/SEAICE_OPTIONS.h:
50      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
51        SEAICE_CAP_HEFF).
52    o pkg/cheapaml:
53      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
54        to load new forcing fields.
55      - add missing "_d 0" where it's needed; + some editing (improve indentation).
56      - remove switch to "-r8" compiler option (no longer needed) in verification
57        cheapAML_box, keep same output (small trucation error differences).
58    o verification/offline_exf_seaice:
59      - add thermodynamics only test.
60    o verification/cheapAML_box:
61      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
62        keep same output (same 14 digits for cg2d).
63      - switch on "-r8" compiler option (some numerical values are missing
64        the "_d 0") and update output (only 6 digits for cg2d were preserved).
65    
66    checkpoint64b (2012/12/24)
67    o pkg/cheapaml:
68      - remove un-used variables (Qnet,EmPmR) from pickup files.
69      - store tendency of advected variables into cheapaml pickup file
70        and fix the AB-2 restart.
71    o verification/offline_exf_seaice and lab_sea adjoint:
72      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
73      - switch to 4 time steps in offline, consistent with lab_sea.
74      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
75      - update results after change of experiment seaice.
76    o pkg/seaice:
77      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
78        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
79        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
80        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
81    o model/src:
82      - add run-time parameter to select CG2D solver minimum-residual solution
83        (in case of a poor convergence).
84    o pkg/seaice/seaice_lsr.F
85      - move calculation of matrix coefficients into new
86        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
87        file; the main purpose of this change is to be able to reuse the code
88        in S/R SEAICE_PRECONDITIONER
89      - modify the computation of the residual so that the mass of sea-ice
90        is not used twice; this simplifies the calculations, but since
91        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
92        not tested in testreport---this does not affect the testreport results.
93    o verification/seaice_obcs:
94      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
95        verification/lab_sea/input.salt_plume; changes results/output.txt*
96    o model/src:
97      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
98    o pkg/seaice:
99      - improve description of parameters in seaice_fgmres.F and start
100        cleaning up the code
101      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
102        second argument
103      - add a metric based on grid cell area to SEAICE_SCALPROD; update
104        results of offline_exf_seaice.dyn_jfnk
105      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
106    o pkg/aim_v23:
107      - fix an other bug in dissipation heating (grid-cell area was missing).
108    o model/src + pkg/seaice:
109      - add global (multi-tile) linear solver for pair of tri-diagonal system
110        along X and Y lines, respectively for U and V component.
111        Note: 1) MPI and cube-exchange not yet coded.
112            2) probably not accurate for poorly conditioned / large size problem.
113      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
114        default: not compiled and not used.
115    o pkg/seaice:
116      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
117        introduce bi/bj loops and use global_sum_tile_rl instead of
118        mpi_allreduce in seaice_fgmres.F
119      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
120      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
121      - add a verification experiment for JFNK in offline_exf_seaice
122    o verification:
123      - change (for now, only fwd test) offline_exf_seaice experiment:
124        use a re-entrant channel with idealized coastline (trapezoidal shape)
125        at southern boundary to explore seaice dynamics and thermodynamics
126        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
127        secondary test (input.thsice) use thermodynamics only with SST relaxation.
128      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
129    o pkg/exf:
130      - disable "sstExtrapol" when Nr=1
131    o verification:
132      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
133        to test pkg/cheapaml.
134    o pkg/aim_v23 & pkg/shap_filt:
135      - fix dissipation heating (erroneous gravity multiplication factor).
136    o pkg/seaice:
137    - remove unused field pressPre from jfnk solver    - remove unused field pressPre from jfnk solver
138    - rename two subroutines in seaice_preconditioner.F    - rename two subroutines in seaice_preconditioner.F
139  o eesupp/src:  o eesupp/src:

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