DOKK / manpages / debian 13 / openmpi-doc / MPI_T_category_get_num.openmpi.3.en
MPI_T_CATEGORY_GET_NUM(3) Open MPI MPI_T_CATEGORY_GET_NUM(3)

MPI_T_category_get_num — Query the number of categories

#include <mpi.h>
int MPI_T_category_get_num(int *num_cat)


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num_cat: Current number of categories

MPI_T_category_get_num can be used to query the current number of categories.

MPI_T_category_get_num will fail if:

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MPI_T_ERR_NOT_INITIALIZED: The MPI Tools interface not initialized

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February 17, 2025