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revision 1.1791 by jmc, Mon Dec 24 15:55:10 2012 UTC revision 1.1823 by jmc, Tue Feb 12 22:26:11 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 utils/matlab:
8      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
9      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
10        instead of local script "load_cs.m".
11    o pkg/seaice:
12      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
13        to the scalarProductMetric and the unrolling. By chance this does not
14        change the verification experiment, because of the particular domain
15        decomposition
16    o pkg/diagnostics:
17      - change default missing_value from UNSET_RL to -999.
18    o pkg/layers: improve vectorization of layers_fluxcalc.F
19      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
20        time spent in this routine by more than a factor of 3 on an NEC-SX8
21      - step 2: replace search algorithm by a bisection algorithm found in
22        Press et al. Numerical Recipes in Fortran. This algorithm can be
23        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
24        For now, use this algorithm only for TARGET_NEC_SX defined.
25      - moved the search algorithm into a separate subroutine, that is kept
26        within the same file for automatic inlining.
27      - modified catching potential errors
28    o pkg/ecco:
29      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
30    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
31      - modifications for ALLOW_GENTIM2D_CONTROL
32      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
33      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
34      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
35      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
36    o model/src:
37      - account for moist thermodynamics in (dry) potential temperature equation;
38        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
39        and cpl_aim+ocn.
40      - also switch to standard compiler (gfortran, was using ifort previously)
41        for fizhi-cs experiments reference output.
42    o pkg/ctrl:
43      - 1st step toward generic time-varying control variable (2D) via CPP option
44        ALLOW_GENTIM2D_CONTROL
45      - note new namelist ctrl_nml_genarr in data.ctrl
46    o verification/global_ocean.cs32x15:
47      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
48        thsice calling sequence and update "output.icedyn.txt" output file.
49    o pkg/ptracers:
50      - from Ryan A.: code to allow to restart a tracer at regular time interval
51        specifying a reset frequency and a reset-phase (for each tracers).
52    o pkg/thsice:
53      - implement new sequence of calls for thsice+seaice:
54          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
55          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
56      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
57        in CPP_OPTIONS.h) to recover old sequence;
58      - update diagnostics for Intermediate State thsice diagnostics: now filled
59        just before advection (instead of just after advection in old sequence);
60      - update output of experiment offline_exf_seaice (standard test);
61      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
62        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
63    o pkg/aim_v23:
64      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
65      - use standard pkg/mdsio routines to read & write CO2 pickup file;
66      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
67      - Implement new sequence of calls for seaice advection (with thsice and
68        seaice diffusion): do ice advection after ice-Thermodynamic (previously
69        was done before); change aim_do_physics.F (split the bi,bj loops block);
70      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
71    o pkg/thsice:
72      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
73        where just seaice diffusion is used without seaice-dynamics.
74    
75    checkpoint64c (2013/01/18)
76    o pkg/seaice:
77      - add a parameter JFNKres_tFac that can replace JFNKres_t
78        (= JFNKres_tFac*JFNKresidual before JFNK solver)
79      - add a line search option to the JFNK solver
80      - move update of u/vIce and computation of initial residual into a separate
81        routine (same file); makes the code a little easier to read (?)
82      - the line search requires computation of the residual and for some reason
83        I cannot do the update of u/vIce at the beginning of the Newton loop
84        without changing the results, so we move computation of the new residual
85        also to the end of the Newton loop, even without the line search
86    o pkg/mdsio:
87      - write missing value (corresponding to undefined array value) to meta files;
88        skip this if missing value is one (UNSET_RL would be a better value for the
89        case of undefined missing value but it's current the default missing-value);
90        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
91    o pkg/exf & thsice:
92      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
93        diagnostics) even when SHORTWAVE_HEATING is #undef;
94    o verification/cfc_example:
95      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
96        illustrate how to use it).
97    o verification/offline_exf_seaice:
98      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
99        files to only one time-record.
100      in input.thermo: narrow the 2 bands of low initial ice-concentration near
101        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
102        snapshot output; same mcPheePiston value as in thsice with
103        surf-current=0.2m/s.
104      in input.thsice: similar set-up as in input.thermo (channel with same seaice
105        initial conditions).
106    o verification/cfc_example:
107      - update file "data" with more standard choice (default rotationPeriod,
108        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
109        set deltaTFreeSurf to deltaTtracer) and update the output.
110    o pkg/layers:
111      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
112      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
113    o verification/offline_exf_seaice:
114      - set all {field}period to zero for constant-in-time forcing (not tested
115        anywhere else).
116    o verification/offline_exf_seaice:
117      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
118      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
119    o model/src:
120      - implement Finite-Volume method for (hydrostatic) presure gradient
121        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
122    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
123      - In order to be compatible with the default EVP code, this requires changing
124        the EVP code around a little; and because any small change immediately
125        breaks the lab_sea.hb87 verification experiment, the reference output is
126        updated two times (each time the remaining aggrement was only 2 digits):
127        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
128        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
129        The adjoint test lab_sea.evp also needed to be updated.
130      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
131        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
132        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
133        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
134        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
135        kept obscure, because I need to test it a little more.
136    o pkg/cheapaml:
137      - fix few incorrect type (_RL/_RS) in subroutine calls.
138    o pkg/seaice:
139      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
140        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
141    o model/src:
142      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
143        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
144        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
145    o pkg/cheapaml:
146      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
147        update output of experiment cheapAML_box.
148      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
149        and set them only in one place (cheapaml_readparms.F).
150      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
151      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
152        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
153    o model/src/the_main_loop.F:
154      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
155    o pkg/seaice:
156      - remove legacy branch code.
157      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
158    o verification/*/code*/SEAICE_OPTIONS.h:
159      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
160        SEAICE_CAP_HEFF).
161    o pkg/cheapaml:
162      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
163        to load new forcing fields.
164      - add missing "_d 0" where it's needed; + some editing (improve indentation).
165      - remove switch to "-r8" compiler option (no longer needed) in verification
166        cheapAML_box, keep same output (small trucation error differences).
167    o verification/offline_exf_seaice:
168      - add thermodynamics only test.
169    o verification/cheapAML_box:
170      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
171        keep same output (same 14 digits for cg2d).
172      - switch on "-r8" compiler option (some numerical values are missing
173        the "_d 0") and update output (only 6 digits for cg2d were preserved).
174    
175  checkpoint64b (2012/12/24)  checkpoint64b (2012/12/24)
176  o pkg/cheapaml:  o pkg/cheapaml:
177    - remove un-used variables (Qnet,EmPmR) from pickup files.    - remove un-used variables (Qnet,EmPmR) from pickup files.

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