NAME

MPI_T_pvar_write - Write the value of a control variable

SYNTAX

C Syntax

#include <mpi.h>
int MPI_T_pvar_write(MPI_T_pvar_session session, MPI_T_pvar_handle handle, const void *buf)

INPUT PARAMETERS

session

Performance experiment session.

handle

Performance variable handle.

buf

Initial address of storage location for variable value.

DESCRIPTION

MPI_T_pvar_write attempts to set the value of the performance variable identified by the handle specified in handle in the session specified in session. The value to be written is specified in buf. The caller must ensure that the buffer specified in buf is large enough to hold the entire value of the performance variable.

ERRORS

MPI_T_pvar_write() will fail if:

[MPI_T_ERR_NOT_INITIALIZED]

The MPI Tools interface not initialized

[MPI_T_ERR_INVALID_HANDLE]

The handle is invalid or not associated with the session

[MPI_T_ERR_INVALID_SESSION]

Session argument is not a valid session

[MPI_T_ERR_PVAR_NO_WRITE]

Variable cannot be written

SEE ALSO

MPI_T_pvar_handle_alloc
MPI_T_pvar_get_info
MPI_T_pvar_session_create