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revision 1.1599 by jmc, Wed Feb 15 22:13:48 2012 UTC revision 1.1620 by heimbach, Wed Mar 14 20:05:37 2012 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o another iteration on solve_*diagonal.F
8      Make choices independent of AUTODIFF
9      Default is now the adjoinable vectorized version
10      Alternative choices are:
11      * still adjoinable but lower memory (k as inner-most loop)
12      SOLVE_DIAGONAL_KINNER
13      * non-adjoinable legacy version with low memory footprint
14      SOLVE_DIAGONAL_LOWMEMORY
15    o testreport
16     - add option to use a home made wrapper around "make"
17     - remove MITGCM_IEEE env. variable (no longer active)
18    o pkg/shelfice
19     - improve computation of friction velocity for velocity dependent
20       exchange coefficients: include velocities into SHELFICEBoundaryLayer
21       block to average velocities vertically
22     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
23    o Modify diagonal solvers, now three versions (upon request):
24      #ifndef SOLVE_DIAGONAL_AUTODIFF
25        1. default version (dating back a while ago)
26      #else /* def SOLVE_DIAGONAL_AUTODIFF */
27      # ifdef SOLVE_DIAGONAL_KINNER
28        2. adjoinable version with k-innermost loop (G. Forget)
29      # else
30        3. adjoinable vectorized version of 2.
31      # endif
32      #endif /* SOLVE_DIAGONAL_AUTODIFF */
33      All flags are currently set within routines, but could/should be moved to CPP-options.
34      Array bounds for 1. are as before, for 2.,3. cover the entire domain
35      (could be changed for 1. too).
36    o verification/lab_sea (fwd):
37      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
38        use 7 categories (except hb87), new solve4temp params (except salt_plume),
39        constant salinity (=4) or variable salinity (salt_plume) done through
40        SItracer.
41    o pkg/seaice:
42      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
43      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
44         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
45        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
46        SEAICE_freeze got retired) but already better than previously with
47        SEAICE_freeze=123456.7 deg.C;
48      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
49        (safer multi-threaded setting); always set SEAICEuseEVP;
50      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
51        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
52        stop if multiple specifications for the same coeff; make sure default
53        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
54    o pkg/obcs:
55      - allow to switch to upwind 1rst order advection scheme for the advective
56        flux computation at the open-boundary; disabled for adjoint built.
57    o pkg/ptracers:
58      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
59      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
60      - add parameter to decide when to start a tracer; use internal flag to
61        know which tracer to step-forward; switch this internal flag at the top
62        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
63        for adjoint built.
64    o pkg/seaice:
65      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
66      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
67      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
68    o pkg/ecco:
69      - fix writing of output file DiagnosCost_ClimSalt/Theta
70        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
71    o pkg/seaice:
72      - add missing initialisation of COR_ICE array in dynsolver.F
73      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
74        compiled either way, and is tested in all exps (multidim was only tested
75        in lab_sea ad before).
76      - cosmetic change to prepare for future addition of ITD. no change to results.
77        no defaults change.
78      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
79      - by lack of adequate verification experiments, I further used custom versions
80        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
81        should be correct.
82      - avoid recomputations in ad.
83    o array initialisation in adjoint mode:
84      1) pkg/mom_common/mom_calc_ke.F:
85        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
86        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
87        part this initialisation is gone, resulting in Floating Point Exception
88        (caught by open64 compiler with debug option).
89      2) model/src/convective_weights.F
90        set output convectCount over the full array range (instead of doing
91        an update): this fix a similar issue when called within recomputation (adjoint)
92        which could by-pass the initialisation (normally done in the caller S/R).
93    o pkg/seaice:
94      - final version of turbulent flux params, as agreed at MIT ice meet:
95           SEAICE_mcPheePiston (default is ~ 0.000875)
96           SEAICE_mcPheeTaper (default is 0.)
97           SEAICE_frazilFrac (defualt is 1.)
98           SEAICE_mcPheeStepFunc (default is false)
99      - changes results at trunction error level
100      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
101    o added pkg/frazil:
102      - see frazil_description.tex for details
103      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
104    o pkg/shelfice/shelfice_thermodynamics.F
105      - fix exponents for velocity dependent exchange coefficients: change
106        from 2/3(=0) to 0.66666666666666667
107      - move computation of velocity dependent exchange coefficients into
108        separate loop, so that it applies to both thermodynamics
109      - move some divisions by constants out of loops
110    
111    checkpoint63j (2012/02/16)
112    o pkg/seaice:
113      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
114      - SItracer:  added run time params, and allow coupling to ocn salinity.
115  o pkg/seaice: remove (almost) all divisions by constants within loops  o pkg/seaice: remove (almost) all divisions by constants within loops
116    in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d    in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
117    results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only    results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
118    those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,    those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
119    output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt    output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
120  o pkg/seaice :  o pkg/seaice :
121    - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula.EQ.    - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
122    1 or 2, using newly added run time parameter SEAICE_availHeatTaper.      = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
123    - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.    - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
124    - add permanent SItflux diag that corresponds to TFLUX but includes    - add permanent SItflux diag that corresponds to TFLUX but includes
125    ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.      ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
126    - allow activation/testing of a fix for suspected missing term in    - allow activation/testing of a fix for suspected missing term in
127    ocn-ice heat budget (to be confirmed). To test this, you want to      ocn-ice heat budget (to be confirmed). To test this, you want to
128    undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param      undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
129    SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.      SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
130    - no change in results, fwd or ad.    - no change in results, fwd or ad.
131  o global_ocean.cs32x15/results: three changes following from the pkg/seaice commit below.  o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
132    - switch to variable freezing point.    - switch to variable freezing point.
133         Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.         Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
134    - bug fix : the sublimation term that was missing is now activated.    - bug fix : the sublimation term that was missing is now activated.
# Line 29  o global_ocean.cs32x15/results: three ch Line 137  o global_ocean.cs32x15/results: three ch
137         Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.         Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
138  o pkg/seaice:  o pkg/seaice:
139    - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT    - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
140   is now the default, and the old default constant freezing point is recovered with      is now the default, and the old default constant freezing point is recovered
141   SEAICE_tempFrz0    = -1.96,      with SEAICE_tempFrz0    = -1.96,
142   SEAICE_dTempFrz_dS = 0.,           SEAICE_dTempFrz_dS = 0.,
143    - retire SEAICE_freeze that was the old way of specifycing the constant freezing point.    - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
144    - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.    - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
145    - bug fix (thanks to M. Losch) : the sublimation term that was missing is now    - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
146   activated. To reproduce old results that had this bug define SEAICE_DISABLE_SUBLIM.      activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
147    - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)    - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
148   was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).      was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
149    - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in    - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
150   seaice_growth r149 for legacy branch (no results change).      seaice_growth r149 for legacy branch (no results change).
151    - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code from I. Fenty).    - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
152    - results did not change except for global_ocean.cs32x15, mostly due to the switch      from I. Fenty).
153    to variable freezing point (see above item for detail).    - results did not change except for global_ocean.cs32x15, mostly due to the
154        switch to variable freezing point (see above item for detail).
155  o pkg/thsice:  o pkg/thsice:
156    - fix and simplify interface to salt_plume pkg ; diagnose directly amount of    - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
157      seawater freezing in thsice_calc_thickn (not used).      seawater freezing in thsice_calc_thickn (not used).
158  o pkg/seaice: turbulent flux term specification via run time params.  o pkg/seaice: turbulent flux term specification via run time params.
159    - replace CPP switches with run time switches to facilitate testing    - replace CPP switches with run time switches to facilitate testing
160    - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX, GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR    - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
161                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
162    - added runtime parameter : SEAICEturbFluxFormula    - added runtime parameter : SEAICEturbFluxFormula
163    - move Mcphee constants to SEAICE_PARAMS.h    - move Mcphee constants to SEAICE_PARAMS.h
164    - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;    - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
165      SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply); remove               SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
166      seaice_summary call (moved to seaice_init_fixed)               remove seaice_summary call (moved to seaice_init_fixed)
167    - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on    - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
168      SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)      SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
169    - seaice_summary.F : add missing report of read turbulent flux term set up (and SITRACER).    - seaice_summary.F : add missing report of read turbulent flux term set up
170    - seaice_check.F : check range; inform and stop if retired CPPs are used (incl. SEAICE_AGE).                         and SITRACER.
171      - seaice_check.F : check range; inform and stop if retired CPPs are used
172                         (incl. SEAICE_AGE).
173    - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without    - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
174          CPP switch, same computation as before for the different options.           CPP switch, same computation as before for the different options.
175    - change results at the truncation level.    - change results at the truncation level.
176  o pkg/seaice:  o pkg/seaice:
177    - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:    - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
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