MPI_T_pvar_readreset(3) | Open MPI | MPI_T_pvar_readreset(3) |
MPI_T_pvar_readreset - Atomically read and reset the value of a performance variable
#include <mpi.h> int MPI_T_pvar_readreset(MPI_T_pvar_session session, MPI_T_pvar_handle handle, const void *buf)
MPI_T_pvar_readreset atomically queries and resets the value of a performance variable bound to the handle specified by handle in the session specified by session. The result is stored in the buffer pointed to by buf. This function can only be used with performance variables that are atomic and not readonly. 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_readreset() will fail if:
MPI_T_pvar_handle_alloc MPI_T_pvar_get_info MPI_T_pvar_session_create MPI_T_pvar_read MPI_T_pvar_reset
December 18, 2020 | 4.1.0 |