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)

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:

[MPI_T_ERR_NOT_INITIALIZED]
The MPI Tools interface not initialized
November 24, 2021 4.1.2