Open MPI

NAME¶

MPI_T_pvar_handle_alloc, MPI_T_pvar_handle_free - Allocate/free MPI performance variable handles

SYNTAX¶

C Syntax¶

#include <mpi.h>
int MPI_T_pvar_handle_alloc(int pvar_index, void *obj_handle,
                            MPI_T_pvar_handle *handle, int *count)
int MPI_T_pvar_handle_free(MPI_T_pvar_handle *handle)

DESCRIPTION¶

MPI_T_pvar_handle_alloc binds the performance variable specified in pvar_index to the MPI object specified in obj_handle. If MPI_T_pvar_get_info returns MPI_T_BIND_NO_OBJECT as the binding for the variable the obj_handle argument is ignored. The number of values represented by this performance variable is returned in the count parameter.

MPI_T_pvar_handle_free frees a handle allocated by MPI_T_pvar_handle_alloc and sets the handle argument to MPI_T_PVAR_HANDLE_NULL.

ERRORS¶

MPI_T_pvar_handle_alloc() will fail if:

[MPI_T_ERR_NOT_INITIALIZED]

The MPI Tools interface not initialized

[MPI_T_ERR_INVALID_INDEX]

The performance variable index is invalid

[MPI_T_ERR_OUT_OF_HANDLES]

No more handles available

MPI_T_pvar_handle_free() will fail if: