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- unstable 4.1.0-10
- experimental 4.1.1-1
MPI_T_pvar_start(3) | Open MPI | MPI_T_pvar_start(3) |
NAME¶
MPI_T_pvar_start, MPI_T_pvar_stop - Start/stop a performance variableSYNTAX¶
C Syntax¶
#include <mpi.h> int MPI_T_pvar_start(MPI_T_pvar_session session, MPI_T_pvar_handle handle) int MPI_T_pvar_stop(MPI_T_pvar_session session, MPI_T_pvar_handle handle)
INPUT PARAMETERS¶
- session
- Performance experiment session.
- handle
- Performance variable handle.
DESCRIPTION¶
MPI_T_pvar_start starts the performance variable with the handle specified in handle. The special value MPI_T_PVAR_ALL_HANDLES can be passed in handle to start all non-continuous handles in the session specified in session.MPI_T_pvar_stop stops the performance variable with the handle specified in handle. The special value MPI_T_PVAR_ALL_HANDLES can be passed in handle to stop all non-continuous handles in the session specified in session.
Continuous performance variables can neither be started nor stopped.
ERRORS¶
MPI_T_pvar_start() and MPI_T_pvar_stop() will fail if:- [MPI_T_ERR_NOT_INITIALIZED]
- The MPI Tools interface not initialized
- [MPI_T_ERR_INVALID_SESSION]
- Session parameter is not a valid session
- [MPI_T_ERR_INVALID_HANDLE]
- Invalid handle or handle not associated with the session
- [MPI_T_ERR_PVAR_NO_STARTSTOP]
- The variable cannot be started or stopped
SEE ALSO¶
MPI_T_pvar_get_info
October 29, 2018 | 3.1.3 |