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Changeset 2882 for branches/2011/dev_r2855_NOCS_mppsca/NEMOGCM/CONFIG/GYRE/EXP00/namelist – NEMO

Ignore:
Timestamp:
2011-09-30T17:57:57+02:00 (13 years ago)
Author:
acc
Message:

Branch 2011/dev_r2855_NOCS_mppsca. Code to avoid the use of MPI_ALLGATHER at the north fold. Prace investigations suggest this can improve scalability for large domain decompositions. This is a completion and replacement of work started on branch DEV_1879_mpp_sca. See #679

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1 edited

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  • branches/2011/dev_r2855_NOCS_mppsca/NEMOGCM/CONFIG/GYRE/EXP00/namelist

    r2715 r2882  
    695695                           !  buffer blocking send or immediate non-blocking sends, resp. 
    696696   nn_buffer   =   0       !  size in bytes of exported buffer ('B' case), 0 no exportation 
     697   ln_nnogather=  .false.  !  activate code to avoid mpi_allgather use at the northfold 
    697698   jpni        =   0       !  jpni   number of processors following i (set automatically if < 1)      
    698699   jpnj        =   0       !  jpnj   number of processors following j (set automatically if < 1)      
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