oracular (3) shmem_fence.openmpi.3.gz

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.

SEE ALSO

       intro_shmem(3)