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MPI_T_pvar_read - Read the value of a performance variable
#include <mpi.h>
int MPI_T_pvar_read(MPI_T_pvar_session session, MPI_T_pvar_handle handle,
const void *buf)
- session
- Performance experiment session.
- handle
- Performance
variable handle.
- buf
- Initial address of storage location for variable value.
MPI_T_pvar_read queries the value of a performance variable
identified by the handle specified in handle in the session specified in
session. The result is stored in the buffer pointed to by buf. The caller
must ensure that the buffer pointed to by buf is large enough to hold the
entire value of the performance variable.
MPI_T_pvar_read() 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_pvar_handle_alloc
MPI_T_pvar_get_info
MPI_T_pvar_session_create
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