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revision 1.1515 by jmc, Fri Oct 21 14:20:23 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
69    
70    checkpoint63d (2011/10/25)
71    o pkg/obcs + seaice-dynamics:
72      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
73        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
74        values (consistent with an implicit method).
75      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
76        return to older implementation (same results as before); note that none of
77        the "experimental" OBCS_SEAICE options are implemented in the new version.
78      - switch test exp. seaice_obcs to use new version (update output).
79  o pkg/seaice:  o pkg/seaice:
80    - add parenthesis in Water-Ice drag calculations (evp & lsr);    - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
81    - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;    - add parenthesis in Water-Ice drag calculations (evp & lsr);
82      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
83      and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)      and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
84    - update output of test exp lab_sea that uses evp or lsr (fwd+ad)    - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
85      and global_ocean.cs32x15 (icedyn & seaice fwd+ad).      and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
# Line 15  o pkg/layers: Line 88  o pkg/layers:
88  o pkg/dic:  o pkg/dic:
89    - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add    - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
90      carbonate computation/output to CALC_PCO2_APPROX      carbonate computation/output to CALC_PCO2_APPROX
91  o model/src:  o pkg/generic_advdiff
92    - improve vectorization also for adjoint code of    - make TAF generate code that vectorizes:
93        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
94    o model/src:
95      - improve vectorization also for adjoint code of
96      solve_tridiagonal and solve_pentadiagonal. As this requires up to      solve_tridiagonal and solve_pentadiagonal. As this requires up to
97      5 new 3D-fields, this code is only turned on for the combination of      5 new 3D-fields, this code is only turned on for the combination of
98      ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX.      ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
99        for singular matrix check (only for TARGET_NEC_SX).
100    - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to    - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
101      ALLOW_AUTODIFF. This flag now needs to be set outside of      ALLOW_AUTODIFF. This flag now needs to be set outside of
102      solve_tri/pentadiagonal.F      solve_tri/pentadiagonal.F
103  o pkg/exf:  o pkg/exf:
104    - fix previous modif in exf_readparms.F (revision 1.66: treatment of    - fix previous modif in exf_readparms.F (revision 1.66: treatment of

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