17.2.352. MPI_T_cvar_get_num

MPI_T_cvar_get_num — Query the number of control variables

17.2.352.1. SYNTAX

17.2.352.1.1. C Syntax

#include <mpi.h>

int MPI_T_cvar_get_num(int *num_cvar)

17.2.352.2. OUTPUT PARAMETERS

num_cvar: Current number of control variables.

17.2.352.3. DESCRIPTION

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

17.2.352.4. ERRORS

MPI_T_cvar_get_num will fail if:

MPI_T_ERR_NOT_INITIALIZED: The MPI Tools interface not initialized