Changes between Version 1 and Version 2 of PDAF_set_comm_pdaf


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Timestamp:
Oct 3, 2026, 5:07:31 PM (8 hours ago)
Author:
lnerger
Comment:

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  • PDAF_set_comm_pdaf

    v1 v2  
    33This page documents the routine `PDAF_set_comm_pdaf` of PDAF, which was introduced with PDAF V2.0.
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    5 By default, PDAF bases on `MPI_COMM_WORLD`, thus all processes in a program. This routine allows to set a different communicator. This can be useful if a model is e.g. run with an OI-server so that the world communicator is split into processes for the IO (file) operations and other processes for the actual model run. In this casem, the model would run using a communicator distinct from `MPI_COMM_WORLD` and PDAF should operate only with this communicator. `PDAF_set_comm_pdaf` allows the user to specify this communicator for PDAF.
     5By default, PDAF bases on `MPI_COMM_WORLD`, thus all processes in a program. This routine allows to set a different communicator. This can be useful if a model is e.g. run with an OI-server so that the world communicator is split into processes for the IO (file) operations and other processes for the actual model run. In this case, the model would run using a communicator distinct from `MPI_COMM_WORLD` and PDAF should operate only with this communicator. `PDAF_set_comm_pdaf` allows the user to specify this communicator for PDAF.
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