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revision 1.1258 by mlosch, Wed Apr 28 08:37:41 2010 UTC revision 1.1263 by jmc, Thu May 6 23:42:56 2010 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/exch2:
8      - remove "simulationMode" from arg. list of S/R EXCH2_RX1,2_CUBE ;
9      - add argument "signOption" to EXCH2_RX1_CUBE (will be needed for SM exch).
10    o pkg/autodiff & exch2:
11      process exch_uv_agrid_3d_rx.f & exch2_uv_agrid_3d_rx.f through TAF
12      (for now, only if ALLOW_EXCH2 is defined).
13    o pkg/autodiff:
14      - include PACKAGES_CONFIG.h in exch*ad.flow & exch*ad.F
15        (not supposed to be in CPP_OPTIONS.h) to get ALLOW_EXCH2 defined correctly.
16       + clean-up comments (_RS is not always real*4)
17      - fix bug in ADEXCH_UV_3D_RX (without EXCH2, was calling the forward exch S/R)
18      - add a stop in ADEXCH_UV_AGRID_3D_RX if trying to use it with EXCH2:
19        was calling a forward exch2, which is wrong ; used in SEAICE & EXF pkgs.
20    o testreport (AD-tests):
21      no longer link files from dir "../input" (1rst link files from
22      "../input_ad.[xx]" if secondary test "xx" and then from "../input_ad")
23    
24    checkpoint62f (2010/04/29)
25  o model/src/the_main_loop.F:  o model/src/the_main_loop.F:
26    adjust store directives for seaice evp and multicategory according to    adjust store directives for seaice evp and multicategory according to
27    pkg/ecco/the_main_loop.F    pkg/ecco/the_main_loop.F
28  o adjoint:  o adjoint:
29    global_sum_ad was incomplete (noted many times by many people ;)    global_sum_ad was incomplete (noted many times by many people ;)
30    nice description by Jean U. as follows:    nice description by Jean U. as follows:
31    * allreduce(var) in global_sum.F can be interpreted as    * allreduce(var) in global_sum.F can be interpreted as
32      reduce(sum) followed by broadcast of sum.        reduce(sum) followed by broadcast of sum.
33    * The adjoint of that is    * The adjoint of that is
34      sum(adjoint) followed by broadcast(summed adjoint value)      sum(adjoint) followed by broadcast(summed adjoint value)
35      or in other words, allreduce(sum, adjoint vars)      or in other words, allreduce(sum, adjoint vars)
36    We were missing the sum(adjoint)!    We were missing the sum(adjoint)!
37    Benign, except(!) for "global" scalars appearing in tile loops (bi,bj)    Benign, except(!) for "global" scalars appearing in tile loops (bi,bj)
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