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revision 1.1595 by gforget, Mon Feb 13 16:38:08 2012 UTC revision 1.1635 by mlosch, Sat Mar 24 20:53:47 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 global_ocean.cs32x15/results: three changes following from the pkg/seaice commit below.  o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
8    - switch to variable freezing point.  o verification/lab_sea
9      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
10      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
11      * nTimeSteps 3 -> 4
12      * changed reference output accordingly
13    o pkg/ctrl:
14      * fix ctrl_get_gen for xx_sst, xx_sss
15    o pkg/fizhi:
16      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
17        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
18      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
19        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
20        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
21    o pkg/gmredi:
22      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
23    o pkg/fizhi:
24      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
25        (old)aces open64 tuv test.
26    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
27    o pkg/mom_vecinv:
28      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
29        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
30        with non-lin free-surf).
31    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
32      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
33      some compilers (gfortran 4.6.0 on MacOS)
34    o momentum:
35      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
36        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
37        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
38    
39    checkpoint63k (2012/03/17)
40    o model/src:
41       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
42         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
43       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
44         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
45    o model/src: solve_*diagonal.F
46       - replace division with multiplication by inverse (similar to original version)
47         update output of AD exp. global_ocean.90x40x15.
48       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
49         to enable the use of the vectorized & differentiable solve_tridiagonal.F
50       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
51         vertical advection (to get solve_tridiagonal tested in AD mode).
52    o pkg/seaice: ECCO-CLIVAR merge:
53      1. seaice AREA relaxation
54         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
55         * runtime flag: SEAICE_tauAreaObsRelax
56      2. modified global mean cost imbalance code: CPP option
57          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
58    o another iteration on solve_*diagonal.F
59       Make choices independent of AUTODIFF
60       Default will be the adjoinable vectorized version.
61       Alternative choices are:
62       * non-adjoinable original version with low memory footprint:
63         #define SOLVE_DIAGONAL_LOWMEMORY
64       * still adjoinable but does not vectorize (k as inner-most loop):
65         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
66    o testreport
67     - add option to use a home made wrapper around "make"
68     - remove MITGCM_IEEE env. variable (no longer active)
69    o pkg/shelfice
70     - improve computation of friction velocity for velocity dependent
71       exchange coefficients: include velocities into SHELFICEBoundaryLayer
72       block to average velocities vertically
73     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
74    o Modify diagonal solvers, now three versions (upon request):
75      #ifndef SOLVE_DIAGONAL_AUTODIFF
76        1. default version (dating back a while ago)
77      #else /* def SOLVE_DIAGONAL_AUTODIFF */
78      # ifdef SOLVE_DIAGONAL_KINNER
79        2. adjoinable version with k-innermost loop (G. Forget)
80      # else
81        3. adjoinable vectorized version of 2.
82      # endif
83      #endif /* SOLVE_DIAGONAL_AUTODIFF */
84      All flags are currently set within routines, but could/should be moved to CPP-options.
85      Array bounds for 1. are as before, for 2.,3. cover the entire domain
86      (could be changed for 1. too).
87    o verification/lab_sea (fwd):
88      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
89        use 7 categories (except hb87), new solve4temp params (except salt_plume),
90        constant salinity (=4) or variable salinity (salt_plume) done through
91        SItracer.
92    o pkg/seaice:
93      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
94      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
95         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
96        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
97        SEAICE_freeze got retired) but already better than previously with
98        SEAICE_freeze=123456.7 deg.C;
99      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
100        (safer multi-threaded setting); always set SEAICEuseEVP;
101      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
102        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
103        stop if multiple specifications for the same coeff; make sure default
104        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
105    o pkg/obcs:
106      - allow to switch to upwind 1rst order advection scheme for the advective
107        flux computation at the open-boundary; disabled for adjoint built.
108    o pkg/ptracers:
109      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
110      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
111      - add parameter to decide when to start a tracer; use internal flag to
112        know which tracer to step-forward; switch this internal flag at the top
113        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
114        for adjoint built.
115    o pkg/seaice:
116      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
117      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
118      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
119    o pkg/ecco:
120      - fix writing of output file DiagnosCost_ClimSalt/Theta
121        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
122    o pkg/seaice:
123      - add missing initialisation of COR_ICE array in dynsolver.F
124      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
125        compiled either way, and is tested in all exps (multidim was only tested
126        in lab_sea ad before).
127      - cosmetic change to prepare for future addition of ITD. no change to results.
128        no defaults change.
129      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
130      - by lack of adequate verification experiments, I further used custom versions
131        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
132        should be correct.
133      - avoid recomputations in ad.
134    o array initialisation in adjoint mode:
135      1) pkg/mom_common/mom_calc_ke.F:
136        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
137        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
138        part this initialisation is gone, resulting in Floating Point Exception
139        (caught by open64 compiler with debug option).
140      2) model/src/convective_weights.F
141        set output convectCount over the full array range (instead of doing
142        an update): this fix a similar issue when called within recomputation (adjoint)
143        which could by-pass the initialisation (normally done in the caller S/R).
144    o pkg/seaice:
145      - final version of turbulent flux params, as agreed at MIT ice meet:
146           SEAICE_mcPheePiston (default is ~ 0.000875)
147           SEAICE_mcPheeTaper (default is 0.)
148           SEAICE_frazilFrac (defualt is 1.)
149           SEAICE_mcPheeStepFunc (default is false)
150      - changes results at trunction error level
151      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
152    o added pkg/frazil:
153      - see frazil_description.tex for details
154      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
155    o pkg/shelfice/shelfice_thermodynamics.F
156      - fix exponents for velocity dependent exchange coefficients: change
157        from 2/3(=0) to 0.66666666666666667
158      - move computation of velocity dependent exchange coefficients into
159        separate loop, so that it applies to both thermodynamics
160      - move some divisions by constants out of loops
161    
162    checkpoint63j (2012/02/16)
163    o pkg/seaice:
164      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
165      - SItracer:  added run time params, and allow coupling to ocn salinity.
166    o pkg/seaice: remove (almost) all divisions by constants within loops
167      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
168      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
169      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
170      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
171    o pkg/seaice :
172      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
173        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
174      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
175      - add permanent SItflux diag that corresponds to TFLUX but includes
176        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
177      - allow activation/testing of a fix for suspected missing term in
178        ocn-ice heat budget (to be confirmed). To test this, you want to
179        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
180        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
181      - no change in results, fwd or ad.
182    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
183      - switch to variable freezing point.
184         Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.         Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
185    - bug fix : the sublimation term that was missing is now activated.    - bug fix : the sublimation term that was missing is now activated.
186         Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.         Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
187    - bug fix : flooding sign term for SIsal0.NE.0.    - bug fix : flooding sign term for SIsal0.NE.0.
188         Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.         Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
189  o pkg/seaice:  o pkg/seaice:
190    - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT    - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
191   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
192   SEAICE_tempFrz0    = -1.96,      with SEAICE_tempFrz0    = -1.96,
193   SEAICE_dTempFrz_dS = 0.,           SEAICE_dTempFrz_dS = 0.,
194    - 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)
195    - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.    - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
196    - 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
197   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.
198    - 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)
199   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).
200    - 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
201   seaice_growth r149 for legacy branch (no results change).      seaice_growth r149 for legacy branch (no results change).
202    - 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
203    - results did not change except for global_ocean.cs32x15, mostly due to the switch      from I. Fenty).
204    to variable freezing point (see above item for detail).    - results did not change except for global_ocean.cs32x15, mostly due to the
205        switch to variable freezing point (see above item for detail).
206  o pkg/thsice:  o pkg/thsice:
207    - fix and simplify interface to salt_plume pkg ; diagnose directly amount of    - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
208      seawater freezing in thsice_calc_thickn (not used).      seawater freezing in thsice_calc_thickn (not used).
209  o pkg/seaice: turbulent flux term specification via run time params.  o pkg/seaice: turbulent flux term specification via run time params.
210    - replace CPP switches with run time switches to facilitate testing    - replace CPP switches with run time switches to facilitate testing
211    - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX, GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR    - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
212                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
213    - added runtime parameter : SEAICEturbFluxFormula    - added runtime parameter : SEAICEturbFluxFormula
214    - move Mcphee constants to SEAICE_PARAMS.h    - move Mcphee constants to SEAICE_PARAMS.h
215    - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;    - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
216      SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply); remove               SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
217      seaice_summary call (moved to seaice_init_fixed)               remove seaice_summary call (moved to seaice_init_fixed)
218    - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on    - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
219      SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)      SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
220    - 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
221    - seaice_check.F : check range; inform and stop if retired CPPs are used (incl. SEAICE_AGE).                         and SITRACER.
222      - seaice_check.F : check range; inform and stop if retired CPPs are used
223                         (incl. SEAICE_AGE).
224    - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without    - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
225          CPP switch, same computation as before for the different options.           CPP switch, same computation as before for the different options.
226    - change results at the truncation level.    - change results at the truncation level.
227  o pkg/seaice:  o pkg/seaice:
228    - 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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