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revision 1.1520 by mlosch, Tue Oct 25 13:10:24 2011 UTC revision 1.1529 by jmc, Mon Nov 7 22:28:38 2011 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o model/src:
8      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
9        truncation) and add diagnostics for Adams-Bashforth tendency increment.
10      - update test-exp. AD output:
11        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
12      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
13        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
14        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
15        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
16        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
17        tutorial_plume_on_slope.
18    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
19      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
20      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
21      does not even come with an F77 compiler anymore, this should not be
22      a limitation
23    
24    checkpoint63e (2011/11/06)
25    o pkg/seaice adjoint of LSR:
26      - substantially rework STORE dirs.
27      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
28        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
29        and only perform SOLV_MAX_FIXED adjoint iters.
30        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
31        always goes to same record, meaning that the last forward field will be
32        the one used in the adjoint - an approximation.
33      - now produces non-zero LSR-related gradients, and acceptable gradients for
34        An's zonal (x-z) test case (to be checked in)
35      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
36        (but these are screwed up by the thermodynamics in the first place);
37        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
38        output_adm.txt also reflects changes to seaice_lsr
39      - global_ocean.cs32x15:
40        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
41          (output_adm.seaice.txt was updated)
42        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
43          (output_adm.seaice_dynmix.txt)
44    o test-exp. exp4+stevens:
45      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
46    o pkg/seaice (lsr solver):
47      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
48        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
49      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
50      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
51        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
52      - compute (with new S/R) and print initial (+ free-driff sol. if available)
53        and final residual of linearised system.
54    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
55      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
56    o pkg/obcs: Stevens BCs (still only for east and west)
57      - fix Stevens BCs by using intermediate velocities of previous
58        time step as "baroclinic" contribution rather velocity of one grid cell
59        inside the boundaries; more consistent but makes the entire treatment
60        more complicated, requires new pickup files and two new S/Rs:
61        obcs_copy_uv_n and obcs_save_uv_n
62        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
63        (undefined by default)
64      - silently move computation of some grid factors into separate loops to
65        save some recomputations
66      - add a hack for non-linear free surface
67      - add a verification experiment to exp4 that tests this code
68  o make gluemnc/xplodemnc work with (moron) non-GNU shell tools  o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
69    
70  checkpoint63d (2011/10/25)  checkpoint63d (2011/10/25)

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