Changes between Initial Version and Version 1 of PDAF3_set_parallel


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Timestamp:
Jul 7, 2025, 11:39:53 AM (11 days ago)
Author:
lnerger
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  • PDAF3_set_parallel

    v1 v1  
     1= PDAF3_set_parallel =
     2
     3This page documents the routine `PDAF3_set_parallel` of PDAF. This routine was introduced with PDAF V3.0.
     4
     5The routine `PDAF3_init` is called in `init_parallel_pdaf` to provide PDAF with the paralellization information.
     6
     7The call to `PDAF3_set_parallel_init` has the following structure:
     8{{{
     9CALL PDAF_init(COMM_ensemble, COMM_model, COMM_filter, COMM_couple, &
     10               task_id, n_modeltasks, filterpe, &
     11               status_pdaf)
     12}}}
     13
     14The required arguments are the following:
     15
     16 * `COMM_ensemble`: The communicator variable `COMM_ensemble` as initialized by `init_parallel_pdaf`.
     17 * `COMM_model`: The communicator variable `COMM_model` as initialized by `init_parallel_pdaf`.
     18 * `COMM_filter`: The communicator variable `COMM_filter` as initialized by `init_parallel_pdaf`.
     19 * `COMM_couple`: The communicator variable `COMM_couple` as initialized by `init_parallel_pdaf`.
     20 * `task_id`: The index of the model tasks  as initialized by `init_parallel_pdaf`.
     21 * `n_modeltasks`: The number of model tasks as defined before the call to `init_parallel_pdaf`.
     22 * `filterpe`: A logical flag showing whether a process belongs to `COMM_filter` as initialized by `init_parallel_pdaf`. (Usually stored in the module `mod_assimilation`)
     23 * `status_pdaf`: An integer used as status flag of PDAF. If `status_pdaf` is zero upon exit from `PDAF_init` the initialization was successful. An error occurred for non-zero values.