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revision 1.1595 by gforget, Mon Feb 13 16:38:08 2012 UTC revision 1.1628 by dimitri, Mon Mar 19 21:48:27 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 pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
8    - switch to variable freezing point.  o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
9      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
10      some compilers (gfortran 4.6.0 on MacOS)
11    o momentum:
12      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
13        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
14        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
15    
16    checkpoint63k (2012/03/17)
17    o model/src:
18       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
19         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
20       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
21         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
22    o model/src: solve_*diagonal.F
23       - replace division with multiplication by inverse (similar to original version)
24         update output of AD exp. global_ocean.90x40x15.
25       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
26         to enable the use of the vectorized & differentiable solve_tridiagonal.F
27       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
28         vertical advection (to get solve_tridiagonal tested in AD mode).
29    o pkg/seaice: ECCO-CLIVAR merge:
30      1. seaice AREA relaxation
31         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
32         * runtime flag: SEAICE_tauAreaObsRelax
33      2. modified global mean cost imbalance code: CPP option
34          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
35    o another iteration on solve_*diagonal.F
36       Make choices independent of AUTODIFF
37       Default will be the adjoinable vectorized version.
38       Alternative choices are:
39       * non-adjoinable original version with low memory footprint:
40         #define SOLVE_DIAGONAL_LOWMEMORY
41       * still adjoinable but does not vectorize (k as inner-most loop):
42         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
43    o testreport
44     - add option to use a home made wrapper around "make"
45     - remove MITGCM_IEEE env. variable (no longer active)
46    o pkg/shelfice
47     - improve computation of friction velocity for velocity dependent
48       exchange coefficients: include velocities into SHELFICEBoundaryLayer
49       block to average velocities vertically
50     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
51    o Modify diagonal solvers, now three versions (upon request):
52      #ifndef SOLVE_DIAGONAL_AUTODIFF
53        1. default version (dating back a while ago)
54      #else /* def SOLVE_DIAGONAL_AUTODIFF */
55      # ifdef SOLVE_DIAGONAL_KINNER
56        2. adjoinable version with k-innermost loop (G. Forget)
57      # else
58        3. adjoinable vectorized version of 2.
59      # endif
60      #endif /* SOLVE_DIAGONAL_AUTODIFF */
61      All flags are currently set within routines, but could/should be moved to CPP-options.
62      Array bounds for 1. are as before, for 2.,3. cover the entire domain
63      (could be changed for 1. too).
64    o verification/lab_sea (fwd):
65      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
66        use 7 categories (except hb87), new solve4temp params (except salt_plume),
67        constant salinity (=4) or variable salinity (salt_plume) done through
68        SItracer.
69    o pkg/seaice:
70      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
71      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
72         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
73        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
74        SEAICE_freeze got retired) but already better than previously with
75        SEAICE_freeze=123456.7 deg.C;
76      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
77        (safer multi-threaded setting); always set SEAICEuseEVP;
78      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
79        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
80        stop if multiple specifications for the same coeff; make sure default
81        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
82    o pkg/obcs:
83      - allow to switch to upwind 1rst order advection scheme for the advective
84        flux computation at the open-boundary; disabled for adjoint built.
85    o pkg/ptracers:
86      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
87      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
88      - add parameter to decide when to start a tracer; use internal flag to
89        know which tracer to step-forward; switch this internal flag at the top
90        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
91        for adjoint built.
92    o pkg/seaice:
93      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
94      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
95      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
96    o pkg/ecco:
97      - fix writing of output file DiagnosCost_ClimSalt/Theta
98        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
99    o pkg/seaice:
100      - add missing initialisation of COR_ICE array in dynsolver.F
101      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
102        compiled either way, and is tested in all exps (multidim was only tested
103        in lab_sea ad before).
104      - cosmetic change to prepare for future addition of ITD. no change to results.
105        no defaults change.
106      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
107      - by lack of adequate verification experiments, I further used custom versions
108        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
109        should be correct.
110      - avoid recomputations in ad.
111    o array initialisation in adjoint mode:
112      1) pkg/mom_common/mom_calc_ke.F:
113        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
114        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
115        part this initialisation is gone, resulting in Floating Point Exception
116        (caught by open64 compiler with debug option).
117      2) model/src/convective_weights.F
118        set output convectCount over the full array range (instead of doing
119        an update): this fix a similar issue when called within recomputation (adjoint)
120        which could by-pass the initialisation (normally done in the caller S/R).
121    o pkg/seaice:
122      - final version of turbulent flux params, as agreed at MIT ice meet:
123           SEAICE_mcPheePiston (default is ~ 0.000875)
124           SEAICE_mcPheeTaper (default is 0.)
125           SEAICE_frazilFrac (defualt is 1.)
126           SEAICE_mcPheeStepFunc (default is false)
127      - changes results at trunction error level
128      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
129    o added pkg/frazil:
130      - see frazil_description.tex for details
131      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
132    o pkg/shelfice/shelfice_thermodynamics.F
133      - fix exponents for velocity dependent exchange coefficients: change
134        from 2/3(=0) to 0.66666666666666667
135      - move computation of velocity dependent exchange coefficients into
136        separate loop, so that it applies to both thermodynamics
137      - move some divisions by constants out of loops
138    
139    checkpoint63j (2012/02/16)
140    o pkg/seaice:
141      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
142      - SItracer:  added run time params, and allow coupling to ocn salinity.
143    o pkg/seaice: remove (almost) all divisions by constants within loops
144      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
145      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
146      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
147      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
148    o pkg/seaice :
149      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
150        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
151      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
152      - add permanent SItflux diag that corresponds to TFLUX but includes
153        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
154      - allow activation/testing of a fix for suspected missing term in
155        ocn-ice heat budget (to be confirmed). To test this, you want to
156        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
157        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
158      - no change in results, fwd or ad.
159    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
160      - switch to variable freezing point.
161         Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.         Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
162    - bug fix : the sublimation term that was missing is now activated.    - bug fix : the sublimation term that was missing is now activated.
163         Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.         Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
164    - bug fix : flooding sign term for SIsal0.NE.0.    - bug fix : flooding sign term for SIsal0.NE.0.
165         Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.         Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
166  o pkg/seaice:  o pkg/seaice:
167    - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT    - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
168   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
169   SEAICE_tempFrz0    = -1.96,      with SEAICE_tempFrz0    = -1.96,
170   SEAICE_dTempFrz_dS = 0.,           SEAICE_dTempFrz_dS = 0.,
171    - 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)
172    - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.    - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
173    - 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
174   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.
175    - 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)
176   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).
177    - 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
178   seaice_growth r149 for legacy branch (no results change).      seaice_growth r149 for legacy branch (no results change).
179    - 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
180    - results did not change except for global_ocean.cs32x15, mostly due to the switch      from I. Fenty).
181    to variable freezing point (see above item for detail).    - results did not change except for global_ocean.cs32x15, mostly due to the
182        switch to variable freezing point (see above item for detail).
183  o pkg/thsice:  o pkg/thsice:
184    - fix and simplify interface to salt_plume pkg ; diagnose directly amount of    - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
185      seawater freezing in thsice_calc_thickn (not used).      seawater freezing in thsice_calc_thickn (not used).
186  o pkg/seaice: turbulent flux term specification via run time params.  o pkg/seaice: turbulent flux term specification via run time params.
187    - replace CPP switches with run time switches to facilitate testing    - replace CPP switches with run time switches to facilitate testing
188    - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX, GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR    - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
189                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
190    - added runtime parameter : SEAICEturbFluxFormula    - added runtime parameter : SEAICEturbFluxFormula
191    - move Mcphee constants to SEAICE_PARAMS.h    - move Mcphee constants to SEAICE_PARAMS.h
192    - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;    - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
193      SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply); remove               SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
194      seaice_summary call (moved to seaice_init_fixed)               remove seaice_summary call (moved to seaice_init_fixed)
195    - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on    - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
196      SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)      SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
197    - 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
198    - seaice_check.F : check range; inform and stop if retired CPPs are used (incl. SEAICE_AGE).                         and SITRACER.
199      - seaice_check.F : check range; inform and stop if retired CPPs are used
200                         (incl. SEAICE_AGE).
201    - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without    - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
202          CPP switch, same computation as before for the different options.           CPP switch, same computation as before for the different options.
203    - change results at the truncation level.    - change results at the truncation level.
204  o pkg/seaice:  o pkg/seaice:
205    - 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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