18.2.350. MPI_T_cvar_get_num

MPI_T_cvar_get_num - Query the number of control variables

18.2.350.1. SYNTAX

18.2.350.1.1. C Syntax

#include <mpi.h>

int MPI_T_cvar_get_num(int *num_cvar)


  • num_cvar: Current number of control variables.

18.2.350.3. 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.

18.2.350.4. ERRORS

MPI_T_cvar_get_num will fail if:

  • MPI_T_ERR_NOT_INITIALIZED: The MPI Tools interface not initialized