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revision 1.2005 by jmc, Fri Jun 6 21:17:12 2014 UTC revision 1.2026 by jmc, Wed Jul 16 20:33:10 2014 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/fizhi:
8      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
9        affects results at machine truncation level. Update output of experiments
10        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
11    o pkg/seaice: more clean up
12      - rename TAF common block tapes to be more consistent and remove
13        unnecessary duplicates
14      - add store directives to remove more recomputations, but use smaller
15        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
16        The idea behind this flag is to reduce the memory footprint when the
17        adjoint of the LSR is not required. As of now, defining the flag
18        SEAICE_LSR_ADJOINT_ITER increase 4 common block tapes for 2D field by
19        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
20        For experiment offline_exf_seaice, this means on a linux box with gfortran
21        nearly a factor of 10 (but keep in mind there is mostly seaice code in
22        this experiment): > size mitgcmuv_ad
23        text    data        bss     dec        hex  
24        5100659 1216  220458952  225560827  d71c8fb
25        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
26        but only a moderate increase of 36% for global_ocean.cs32x15:
27        text    data        bss     dec        hex
28        6695027 1648 1014578664 1021275339 3cdf6ccb
29        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
30      - note: there are still recomputations in global_ocean.cs32x15 and
31        the gradient agreement changes (gets a little worse)
32      - in general, the AD gradients still are wrong
33    o OpenAD
34      - clean up code_oad/ directories somewhat by moving files
35        dontCompile, dontTransform, keepOriginal to OAD_support/
36    o model/src:
37      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
38        (not currently tested): add dissipation terms before NLFS rescaling of
39        tendencies (previously done after).
40    o pkg/diagnostics:
41      - write stats-diags in ascii file with more digits (same as in monitor).
42    o pkg/down_slope:
43      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
44        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
45    o model/src:
46      - new file "apply_forcing.F" containing all the code previously in
47        external_forcing.F, but with new argument list: pass, as new argument,
48        the current level tendency array to update (instead of a direct update
49        of the common bloc array). Change the corresponding calls.
50      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
51        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
52    o pkg/seaice/seaice_lsr, a little bit of clean up
53      - rearrange some code blocks, so that now all calculations for
54        setting up the right-hand-sides done within one single block
55        (I find that easier to read and understand)
56      - rearrange freedrift-code to reduce the number of ifdefs
57      - adjust some indentations and comments
58    
59    checkpoint64z (2014/07/10)
60    o model/src and several pkgs:
61      - change argument list of all S/R called from external_forcing.F and
62        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
63        to pass, as argument, the current level tendency array to update
64        (instead of a direct update of the common bloc array).
65      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
66      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
67    o pkg/seaice/seaice_lsr.F
68      - always initialize local arrays in seaice_lsr_tridiagu/v
69      - add more local tapes to seaice_lsr_tridiagu/v
70      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
71        keep it in bi/bj loop; this seems to be essential
72      - gradients are still wrong but only by 4-7 orders of magnitude
73        instead of 15 orders of magnitude, lab_sea improves a little
74    o pkg/seaice
75      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
76        generates unnecessary code in seaice_lsr_ad
77      - add more store directives in seaice_lsr to avoid unnecessary code
78        in seaice_lsr_ad
79      - exclude some residual computations in seaice_lsr when
80        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
81        in seaice_lsr_ad
82      - add more storing, a new tape (model/src/the_main_loop.F) and
83        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
84        and klockey should be checked by a specialist)
85      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
86        and update lab_sea after previous changes in pkg/seaice below
87    o pkg/autodiff:
88      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
89        viscFacInAd : run time parameters allowing for adjoint switches
90        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
91    o pkg/ecco:
92      - introduce cost_gencost_boxmean.F that computes a box mean
93        temperature (for use in adjoint sensitivity studies).
94    o model/src/set_defaults.F : initialize viscFacAdj to 1.
95    o pkg/mom_common/mom_calc_visc.F:
96      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
97    o pkg/seaice/seaice_summary.F:
98      - statement for SEAICEadjMODE now in autodiff_readparms.F
99    o pkg/seaice:
100      - remove some store directives and add new ones in an effort to get
101        finally rid off the recomputation warnings. This is successful
102        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
103        defined (i.e. no extensive recomputation warnings left), but there
104        are still too many recomputations on the solver iteration level
105      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
106      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
107        SEAICE_SIZE.h
108      - add a store directive in S/R seaice_calc_viscosities
109    o pkg/seaice (ITD code):
110      - fix definition of Hlimit for multi-threaded case
111      - use double precision arithmetic to compute Hlimit: this affects results;
112        update output of experiment seaice_itd.
113    o replace content of verification/seaice_itd
114      - instead of a 1D column use the configuration of offline_exf_seaice
115        to test the ice thickness distribution code with ridging
116      - this is a first shot at this experiment
117      - change of some defaults of ridging parameters SEAICEhStar (from
118        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
119        and lot of new comments.
120    
121    checkpoint64y (2014/06/20)
122    o pkg/seaice/seaice_reg_ridge.F:
123      - modify the regularization of very small volumes of ice; only check
124        total volume HEFF, and do not apply correction to individual ice
125        classes because that leads to funny patterns in the heat and fw-fluxes
126        into the ocean. Adjust seaice_itd/results/output.txt
127      - replace nITD by SEAICE_multDim in loop-ranges
128    o pkg/exf:
129      - add code to process the case field period = -12. with UV interpolation.
130      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
131        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
132  o verification/global_with_exf:  o verification/global_with_exf:
133    - swith all fields period to -12. (was previously untested) in input/data.exf    - switch all fields period to -12. (was previously untested) in input/data.exf
134      (but keep secondary test ".yearly" unchanged); update the reference output.      (but keep secondary test ".yearly" unchanged); update the reference output.
135  o pkg/cal:  o pkg/cal:
136    - new calendar type "noLeapYear" for 365 days calendar without any leap year.    - new calendar type "noLeapYear" for 365 days calendar without any leap year.
137  o pkg/exf:  o pkg/exf:
138    - new integer parameter "exf_debugLev" (default set to main model debugLevel)    - new integer parameter "exf_debugLev" (default set to main model debugLevel)
139      to replace logical switch "exf_verbose"      to replace logical switch "exf_verbose"
140    - report in STDOUT when loading a new reccord (if exf_debugLev >= 3)    - report in STDOUT when loading a new record (if exf_debugLev >= 3)
141  o pkg/sbo:  o pkg/sbo:
142    - update from Katherine Quinn: evaluate mass directly from density and SSH    - update from Katherine Quinn: evaluate mass directly from density and SSH
143      (budget using Finite Volume method) instead of from bottom pressure.      (budget using Finite Volume method) instead of from bottom pressure.
# Line 28  o model/src & most packages: Line 153  o model/src & most packages:
153      + call LAND_READPARMS from packages_readparms.F      + call LAND_READPARMS from packages_readparms.F
154  o pkg/seaice:  o pkg/seaice:
155    - remove code that resets useThSice in S/R seaice_readparms and    - remove code that resets useThSice in S/R seaice_readparms and
156      replace by a warning in S/R seaice_check      replace it by a warning in S/R seaice_check
157    - remove parameter MULTDIM, replace with nITD and runtime    - remove parameter MULTDIM, replace with nITD and runtime
158      parameter SEAICE_multDim (still hard-wired to nITD if      parameter SEAICE_multDim (still hard-wired to nITD if
159      SEAICE_ITD is defined)      SEAICE_ITD is defined)
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