17.2.362. MPI_T_pvar_get_num

MPI_T_pvar_get_num — Query the number of performance variables

17.2.362.1. SYNTAX

17.2.362.1.1. C Syntax

#include <mpi.h>

int MPI_T_pvar_get_num(int *num_pvar)

17.2.362.2. OUTPUT PARAMETERS

num_pvar: Current number of performance variables.

17.2.362.3. DESCRIPTION

MPI_T_pvar_get_num can be used to query the current number of performance variables. The number of performance variables may increase throughout the execution of the process but will never decrease.

17.2.362.4. ERRORS

MPI_T_pvar_get_num will fail if:

MPI_T_ERR_NOT_INITIALIZED: The MPI Tools interface not initialized