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revision 1.1506 by jmc, Tue Sep 27 23:52:10 2011 UTC revision 1.1537 by mlosch, Tue Nov 29 10:56:03 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/obcs/obcs_calc_stevens.F:
8      - fix a bug in code for northern and southern boundaries.
9    o pkg/seaice/seaice_init_varia.F
10      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
11        caused zero ice-velocities for the B-grid code
12    o pkg/seaice/seaice_init_fixed.F
13      - fix a bug in the initialisation of the second metric terms
14        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
15      - this affects all seaice configurations with useCurviLinearGrid = .true.
16        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
17        = .true. (default)
18      - the only verification experiment affected is global_ocean.cs32x15:
19        icedyn, seaice, and seaice_dynmix (AD)
20    o pkg/thsice/thsice_diagnostics_state.F
21      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
22        not contain garbage that can lead to surprises in diagstats_calc.F
23    o model/src:
24      - move bi,bj loops inside INTEGR_CONTINUITY ;
25      - call INTEGR_CONTINUITY directly from forward_step.F
26        (previously called from momentum_correction_step.F)
27      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
28        forward_step.F and pkg/ecco/the_main_loop.F
29    o model/src/do_oceanic_phys.F:
30      - reset addMass to zero only if useICEFRONT ;
31      - separated k-loop for rhoInSitu calculation ;
32      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
33        and at constant T,S (= WdRHOdP);
34      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
35        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
36        transport of locally-referenced potential density);
37        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
38    o gluemnc:
39      - replace ncrcat with ncks when adding variables to *.glob.nc
40      - change the way variables without record dimensions are handled so that
41        files that have variables with and without record variables can be glued:
42        add a record dimension with a new unique name to be able to differentiate
43        between variable with and without a-prior record dimensions. Remove
44        this record dimension before adding the variable to the *.glob.nc file.
45        This procedure automatically works also for grid.*.nc files that do not
46        have any record dimension.
47    o verification/cpl_aim+ocn:
48      - generate new reference output on baudelaire (gfortran, mpich2) (previously
49        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
50    o pkg/obcs/obcs_calc_stevens.F:
51      - add code for northern and southern boundaries.
52      - reorder some loops to save some operations and so that drFBar can be scalar
53    o model/src:
54      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
55        truncation) and add diagnostics for Adams-Bashforth tendency increment.
56      - update test-exp. AD output:
57        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
58      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
59        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
60        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
61        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
62        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
63        tutorial_plume_on_slope.
64    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
65      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
66      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
67      does not even come with an F77 compiler anymore, this should not be
68      a limitation
69    
70    checkpoint63e (2011/11/06)
71    o pkg/seaice adjoint of LSR:
72      - substantially rework STORE dirs.
73      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
74        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
75        and only perform SOLV_MAX_FIXED adjoint iters.
76        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
77        always goes to same record, meaning that the last forward field will be
78        the one used in the adjoint - an approximation.
79      - now produces non-zero LSR-related gradients, and acceptable gradients for
80        An's zonal (x-z) test case (to be checked in)
81      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
82        (but these are screwed up by the thermodynamics in the first place);
83        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
84        output_adm.txt also reflects changes to seaice_lsr
85      - global_ocean.cs32x15:
86        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
87          (output_adm.seaice.txt was updated)
88        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
89          (output_adm.seaice_dynmix.txt)
90    o test-exp. exp4+stevens:
91      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
92    o pkg/seaice (lsr solver):
93      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
94        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
95      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
96      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
97        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
98      - compute (with new S/R) and print initial (+ free-driff sol. if available)
99        and final residual of linearised system.
100    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
101      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
102    o pkg/obcs: Stevens BCs (still only for east and west)
103      - fix Stevens BCs by using intermediate velocities of previous
104        time step as "baroclinic" contribution rather velocity of one grid cell
105        inside the boundaries; more consistent but makes the entire treatment
106        more complicated, requires new pickup files and two new S/Rs:
107        obcs_copy_uv_n and obcs_save_uv_n
108        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
109        (undefined by default)
110      - silently move computation of some grid factors into separate loops to
111        save some recomputations
112      - add a hack for non-linear free surface
113      - add a verification experiment to exp4 that tests this code
114    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
115    
116    checkpoint63d (2011/10/25)
117    o pkg/obcs + seaice-dynamics:
118      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
119        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
120        values (consistent with an implicit method).
121      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
122        return to older implementation (same results as before); note that none of
123        the "experimental" OBCS_SEAICE options are implemented in the new version.
124      - switch test exp. seaice_obcs to use new version (update output).
125    o pkg/seaice:
126      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
127      - add parenthesis in Water-Ice drag calculations (evp & lsr);
128      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
129        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
130      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
131        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
132    o pkg/layers:
133      - Include potential density as new coordinate (Thanks to David Munday)
134    o pkg/dic:
135      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
136        carbonate computation/output to CALC_PCO2_APPROX
137    o pkg/generic_advdiff
138      - make TAF generate code that vectorizes:
139        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
140    o model/src:
141      - improve vectorization also for adjoint code of
142        solve_tridiagonal and solve_pentadiagonal. As this requires up to
143        5 new 3D-fields, this code is only turned on for the combination of
144        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
145        for singular matrix check (only for TARGET_NEC_SX).
146      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
147        ALLOW_AUTODIFF. This flag now needs to be set outside of
148        solve_tri/pentadiagonal.F
149    o pkg/exf:
150      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
151        optional namelist EXF_NML_OBCS).
152      - add many debug-print (to trace down where pkg/cal error msg comes from)
153    o pkg/mom_vecinv/mom_vi_hdissip.F
154      - rearrange loops so that vectorization is improved and in particular
155        the adjoint routine vectorizes. The code is a little longer now, but I
156        think easier to read.
157        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
158    o pkg/seaice:
159      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
160    o pkg/exch2:
161      - alternative code (without tile x tile matrix) for cumulated (global) sum;
162        used as default; keep using matrix version in adjustment.cs-32x32x1.
163    o tools/build_options:
164      - after merging some MPI and/or multi-threads specific optfiles so that
165        the modified default optfile support both built (using genmake2 -mpi
166        for the MPI built, using genmake2 -omp for OpenMP built),
167        move now obsolete optfiles to tools/build_options/unsupported/
168       (add copy of email sent to support list in doc/optfiles_changes.txt)
169    
170    checkpoint63c (2011/09/28)
171  o pkg/ebm:  o pkg/ebm:
172    - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of    - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
173      test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)      test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
174  o pkg/seaice (SItracer pickup)  o pkg/seaice (SItracer pickup)
175  * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)  * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)

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