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revision 1.1597 by mlosch, Tue Feb 14 14:53:17 2012 UTC revision 1.1640 by dimitri, Sat Mar 31 05:38:56 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 pkg/seaice: remove (almost) all divisions by constants within loops  o pkg/bbl: modification so it can work with z*
8    in seaice_growth.F and seaice_solve4temp.F  o eesupp/src:
9  o pkg/seaice :    - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
10    - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula.EQ.      writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
11    1 or 2, using newly added run time parameter SEAICE_availHeatTaper.    - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
12        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
13      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
14      - when using MPI, always set usingMPI=T ; set default accordingly and stop
15        if not consistent.
16      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
17        argument is zero (in case called within single-thread section).
18    o pkg/fizhi:
19        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
20        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
21    o pkg/exch2:
22      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
23        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
24      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
25        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
26        with bad ones coming from a not-yet-updated halo.
27        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
28    o pkg/frazil:
29        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
30        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
31    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
32    o verification/lab_sea
33      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
34      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
35      * nTimeSteps 3 -> 4
36      * changed reference output accordingly
37    o pkg/ctrl:
38      * fix ctrl_get_gen for xx_sst, xx_sss
39    o pkg/fizhi:
40      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
41        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
42      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
43        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
44        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
45    o pkg/gmredi:
46      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
47    o pkg/fizhi:
48      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
49        (old)aces open64 tuv test.
50    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
51    o pkg/mom_vecinv:
52      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
53        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
54        with non-lin free-surf).
55    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
56      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
57      some compilers (gfortran 4.6.0 on MacOS)
58    o momentum:
59      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
60        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
61        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
62    
63    checkpoint63k (2012/03/17)
64    o model/src:
65       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
66         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
67       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
68         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
69    o model/src: solve_*diagonal.F
70       - replace division with multiplication by inverse (similar to original version)
71         update output of AD exp. global_ocean.90x40x15.
72       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
73         to enable the use of the vectorized & differentiable solve_tridiagonal.F
74       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
75         vertical advection (to get solve_tridiagonal tested in AD mode).
76    o pkg/seaice: ECCO-CLIVAR merge:
77      1. seaice AREA relaxation
78         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
79         * runtime flag: SEAICE_tauAreaObsRelax
80      2. modified global mean cost imbalance code: CPP option
81          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
82    o another iteration on solve_*diagonal.F
83       Make choices independent of AUTODIFF
84       Default will be the adjoinable vectorized version.
85       Alternative choices are:
86       * non-adjoinable original version with low memory footprint:
87         #define SOLVE_DIAGONAL_LOWMEMORY
88       * still adjoinable but does not vectorize (k as inner-most loop):
89         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
90    o testreport
91     - add option to use a home made wrapper around "make"
92     - remove MITGCM_IEEE env. variable (no longer active)
93    o pkg/shelfice
94     - improve computation of friction velocity for velocity dependent
95       exchange coefficients: include velocities into SHELFICEBoundaryLayer
96       block to average velocities vertically
97     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
98    o Modify diagonal solvers, now three versions (upon request):
99      #ifndef SOLVE_DIAGONAL_AUTODIFF
100        1. default version (dating back a while ago)
101      #else /* def SOLVE_DIAGONAL_AUTODIFF */
102      # ifdef SOLVE_DIAGONAL_KINNER
103        2. adjoinable version with k-innermost loop (G. Forget)
104      # else
105        3. adjoinable vectorized version of 2.
106      # endif
107      #endif /* SOLVE_DIAGONAL_AUTODIFF */
108      All flags are currently set within routines, but could/should be moved to CPP-options.
109      Array bounds for 1. are as before, for 2.,3. cover the entire domain
110      (could be changed for 1. too).
111    o verification/lab_sea (fwd):
112      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
113        use 7 categories (except hb87), new solve4temp params (except salt_plume),
114        constant salinity (=4) or variable salinity (salt_plume) done through
115        SItracer.
116    o pkg/seaice:
117      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
118      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
119         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
120        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
121        SEAICE_freeze got retired) but already better than previously with
122        SEAICE_freeze=123456.7 deg.C;
123      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
124        (safer multi-threaded setting); always set SEAICEuseEVP;
125      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
126        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
127        stop if multiple specifications for the same coeff; make sure default
128        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
129    o pkg/obcs:
130      - allow to switch to upwind 1rst order advection scheme for the advective
131        flux computation at the open-boundary; disabled for adjoint built.
132    o pkg/ptracers:
133      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
134      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
135      - add parameter to decide when to start a tracer; use internal flag to
136        know which tracer to step-forward; switch this internal flag at the top
137        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
138        for adjoint built.
139    o pkg/seaice:
140      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
141      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
142      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
143    o pkg/ecco:
144      - fix writing of output file DiagnosCost_ClimSalt/Theta
145        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
146    o pkg/seaice:
147      - add missing initialisation of COR_ICE array in dynsolver.F
148      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
149        compiled either way, and is tested in all exps (multidim was only tested
150        in lab_sea ad before).
151      - cosmetic change to prepare for future addition of ITD. no change to results.
152        no defaults change.
153      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
154      - by lack of adequate verification experiments, I further used custom versions
155        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
156        should be correct.
157      - avoid recomputations in ad.
158    o array initialisation in adjoint mode:
159      1) pkg/mom_common/mom_calc_ke.F:
160        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
161        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
162        part this initialisation is gone, resulting in Floating Point Exception
163        (caught by open64 compiler with debug option).
164      2) model/src/convective_weights.F
165        set output convectCount over the full array range (instead of doing
166        an update): this fix a similar issue when called within recomputation (adjoint)
167        which could by-pass the initialisation (normally done in the caller S/R).
168    o pkg/seaice:
169      - final version of turbulent flux params, as agreed at MIT ice meet:
170           SEAICE_mcPheePiston (default is ~ 0.000875)
171           SEAICE_mcPheeTaper (default is 0.)
172           SEAICE_frazilFrac (defualt is 1.)
173           SEAICE_mcPheeStepFunc (default is false)
174      - changes results at trunction error level
175      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
176    o added pkg/frazil:
177      - see frazil_description.tex for details
178      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
179    o pkg/shelfice/shelfice_thermodynamics.F
180      - fix exponents for velocity dependent exchange coefficients: change
181        from 2/3(=0) to 0.66666666666666667
182      - move computation of velocity dependent exchange coefficients into
183        separate loop, so that it applies to both thermodynamics
184      - move some divisions by constants out of loops
185    
186    checkpoint63j (2012/02/16)
187    o pkg/seaice:
188      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
189      - SItracer:  added run time params, and allow coupling to ocn salinity.
190    o pkg/seaice: remove (almost) all divisions by constants within loops
191      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
192      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
193      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
194      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
195    o pkg/seaice :
196      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
197        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
198    - 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.
199    - add permanent SItflux diag that corresponds to TFLUX but includes    - add permanent SItflux diag that corresponds to TFLUX but includes
200    ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.      ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
201    - allow activation/testing of a fix for suspected missing term in    - allow activation/testing of a fix for suspected missing term in
202    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
203    undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param      undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
204    SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.      SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
205    - no change in results, fwd or ad.    - no change in results, fwd or ad.
206  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:
207    - switch to variable freezing point.    - switch to variable freezing point.
208         Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.         Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
209    - bug fix : the sublimation term that was missing is now activated.    - bug fix : the sublimation term that was missing is now activated.
210         Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.         Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
211    - bug fix : flooding sign term for SIsal0.NE.0.    - bug fix : flooding sign term for SIsal0.NE.0.
212         Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.         Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
213  o pkg/seaice:  o pkg/seaice:
214    - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT    - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
215   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
216   SEAICE_tempFrz0    = -1.96,      with SEAICE_tempFrz0    = -1.96,
217   SEAICE_dTempFrz_dS = 0.,           SEAICE_dTempFrz_dS = 0.,
218    - 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)
219    - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.    - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
220    - 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
221   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.
222    - 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)
223   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).
224    - 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
225   seaice_growth r149 for legacy branch (no results change).      seaice_growth r149 for legacy branch (no results change).
226    - 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
227    - results did not change except for global_ocean.cs32x15, mostly due to the switch      from I. Fenty).
228    to variable freezing point (see above item for detail).    - results did not change except for global_ocean.cs32x15, mostly due to the
229        switch to variable freezing point (see above item for detail).
230  o pkg/thsice:  o pkg/thsice:
231    - fix and simplify interface to salt_plume pkg ; diagnose directly amount of    - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
232      seawater freezing in thsice_calc_thickn (not used).      seawater freezing in thsice_calc_thickn (not used).
233  o pkg/seaice: turbulent flux term specification via run time params.  o pkg/seaice: turbulent flux term specification via run time params.
234    - replace CPP switches with run time switches to facilitate testing    - replace CPP switches with run time switches to facilitate testing
235    - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX, GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR    - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
236                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
237    - added runtime parameter : SEAICEturbFluxFormula    - added runtime parameter : SEAICEturbFluxFormula
238    - move Mcphee constants to SEAICE_PARAMS.h    - move Mcphee constants to SEAICE_PARAMS.h
239    - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;    - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
240      SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply); remove               SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
241      seaice_summary call (moved to seaice_init_fixed)               remove seaice_summary call (moved to seaice_init_fixed)
242    - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on    - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
243      SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)      SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
244    - 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
245    - seaice_check.F : check range; inform and stop if retired CPPs are used (incl. SEAICE_AGE).                         and SITRACER.
246      - seaice_check.F : check range; inform and stop if retired CPPs are used
247                         (incl. SEAICE_AGE).
248    - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without    - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
249          CPP switch, same computation as before for the different options.           CPP switch, same computation as before for the different options.
250    - change results at the truncation level.    - change results at the truncation level.
251  o pkg/seaice:  o pkg/seaice:
252    - 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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