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revision 1.2025 by mlosch, Wed Jul 16 12:03:54 2014 UTC revision 1.2029 by jmc, Sat Jul 19 01:26:19 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/ptracers & diagnostics:
8      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
9        title (to avoid some unexpected truncation); sort out ptracers diags units.
10    
11    checkpoint65 (2014/07/18)
12    o pkg/fizhi:
13      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
14        affects results at machine truncation level. Update output of experiments
15        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
16  o pkg/seaice: more clean up  o pkg/seaice: more clean up
17    - rename TAF common block tapes to be more consistent and remove    - rename TAF common block tapes to be more consistent and remove
18      unnecessary duplicates      unnecessary duplicates
19    - add store directives to remove more recomputations,    - add store directives to remove more recomputations, but use smaller
20      but use smaller tapes (and adjust keys) when      tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
21      SEAICE_LSR_ADJOINT_ITER is undefined. The idea behind this flag is      The idea behind this flag is to reduce the memory footprint when the
22      to reduce the memory footprint when the adjoint of the LSR is not      adjoint of the LSR is not required. As of now, defining the flag
23      required. As of now, defining the flag SEAICE_LSR_ADJOINT_ITER      SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
24      increase 4 common block tapes for 2D field by a factor of      a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
25      SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h). For experiment      For experiment offline_exf_seaice, this means on a linux box with gfortran
26      offline_exf_seaice, this means on a linux box with gfortran nearly      nearly a factor of 10 (but keep in mind there is mostly seaice code in
27      a factor of 10 (but keep in mind there is mostly seaice code      this experiment):
     in this experiment)  
28      > size mitgcmuv_ad      > size mitgcmuv_ad
29      text    data        bss     dec        hex        text    data        bss     dec        hex  
30      5100659 1216  220458952  225560827  d71c8fb      5100659 1216  220458952  225560827  d71c8fb
31      5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)      5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
32      but only a moderate increase of 36% for global_ocean.cs32x15      but only a moderate increase of 36% for global_ocean.cs32x15:
33      text    data        bss     dec        hex      text    data        bss     dec        hex
34      6695027 1648 1014578664 1021275339 3cdf6ccb      6695027 1648 1014578664 1021275339 3cdf6ccb
35      6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)      6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
36    - note: there are still recomputations in global_ocean.cs32x15 and    - note: there are still recomputations in global_ocean.cs32x15 and
37      the gradient agreement changes (gets a little worse)      offline_exf_seaice and the gradient agreement changes (gets a
38        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
39    - in general, the AD gradients still are wrong    - in general, the AD gradients still are wrong
40  o OpenAD  o OpenAD
41    - clean up code_oad/ directories somewhat by moving files    - clean up code_oad/ directories somewhat by moving files
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