NAME¶
shmem_fence - Provides a separate ordering on the sequence of puts issued by
this PE to each destination PE.
SYNOPSIS¶
C or C++:
#include <mpp/shmem.h>
void shmem_fence(void);
Fortran:
INCLUDE "mpp/shmem.fh"
CALL SHMEM_FENCE
DESCRIPTION¶
The shmem_fence() routine provides an ordering on the put operations
issued by the calling PE prior to the call to shmem_fence() relative to
the put operations issued by the calling PE following the call to
shmem_fence(). It guarantees that all such prior put operations issued
to a particular destination PE are fully written to the symmetric memory of
that destination PE, before any such following put operations to that same
destination PE are written to the symmetric memory of that destination PE.
Note that the ordering is provided separately on the sequences of puts from
the calling PE to each distinct destination PE. The shmem_quiet()
routine should be used instead if ordering of puts is required when multiple
destination PEs are involved.
NOTES¶
The shmem_quiet function should be called if ordering of puts is desired when
multiple remote PEs are involved.