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revision 1.1517 by jmc, Sat Oct 22 14:11:04 2011 UTC revision 1.1528 by mlosch, Mon Nov 7 09:21:02 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 pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
8      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
9      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
10      does not even come with an F77 compiler anymore, this should not be
11      a limitation
12    
13    checkpoint63e (2011/11/06)
14    o pkg/seaice adjoint of LSR:
15      - substantially rework STORE dirs.
16      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
17        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
18        and only perform SOLV_MAX_FIXED adjoint iters.
19        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
20        always goes to same record, meaning that the last forward field will be
21        the one used in the adjoint - an approximation.
22      - now produces non-zero LSR-related gradients, and acceptable gradients for
23        An's zonal (x-z) test case (to be checked in)
24      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
25        (but these are screwed up by the thermodynamics in the first place);
26        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
27        output_adm.txt also reflects changes to seaice_lsr
28      - global_ocean.cs32x15:
29        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
30          (output_adm.seaice.txt was updated)
31        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
32          (output_adm.seaice_dynmix.txt)
33    o test-exp. exp4+stevens:
34      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
35    o pkg/seaice (lsr solver):
36      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
37        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
38      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
39      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
40        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
41      - compute (with new S/R) and print initial (+ free-driff sol. if available)
42        and final residual of linearised system.
43    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
44      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
45    o pkg/obcs: Stevens BCs (still only for east and west)
46      - fix Stevens BCs by using intermediate velocities of previous
47        time step as "baroclinic" contribution rather velocity of one grid cell
48        inside the boundaries; more consistent but makes the entire treatment
49        more complicated, requires new pickup files and two new S/Rs:
50        obcs_copy_uv_n and obcs_save_uv_n
51        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
52        (undefined by default)
53      - silently move computation of some grid factors into separate loops to
54        save some recomputations
55      - add a hack for non-linear free surface
56      - add a verification experiment to exp4 that tests this code
57    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
58    
59    checkpoint63d (2011/10/25)
60  o pkg/obcs + seaice-dynamics:  o pkg/obcs + seaice-dynamics:
61    - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before    - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
62      solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB      solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
# Line 24  o pkg/layers: Line 77  o pkg/layers:
77  o pkg/dic:  o pkg/dic:
78    - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add    - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
79      carbonate computation/output to CALC_PCO2_APPROX      carbonate computation/output to CALC_PCO2_APPROX
80    o pkg/generic_advdiff
81      - make TAF generate code that vectorizes:
82        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
83  o model/src:  o model/src:
84    - improve vectorization also for adjoint code of    - improve vectorization also for adjoint code of
85      solve_tridiagonal and solve_pentadiagonal. As this requires up to      solve_tridiagonal and solve_pentadiagonal. As this requires up to
86      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
87      ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX.      ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
88        for singular matrix check (only for TARGET_NEC_SX).
89    - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to    - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
90      ALLOW_AUTODIFF. This flag now needs to be set outside of      ALLOW_AUTODIFF. This flag now needs to be set outside of
91      solve_tri/pentadiagonal.F      solve_tri/pentadiagonal.F

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