Man page - shmem_barrier_all.openmpi(3)

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Manual

SHMEM_BARRIER_ALL

SYNOPSIS
DESCRIPTION
EXAMPLES
COPYRIGHT

shmem_barrier_all - Suspends the execution of the calling PE until all other PEs issue a call to this particular shmem_barrier_all() statement.

SYNOPSIS

C or C++:

#include <mpp/shmem.h>

void shmem_barrier_all(void)

Fortran:

include 'mpp/shmem.h'

CALL SHMEM_BARRIER_ALL

DESCRIPTION

The shmem_barrier_all routine does not return until all other PEs have entered this routine at the same point of the execution path.

Prior to synchronizing with other PEs, shmem_barrier_all ensures completion of all previously issued local memory stores and remote memory updates issued via SHMEM functions such as shmem_put32 (3).

EXAMPLES

setup_data()
{
if (shmem_my_pe() == 0) {
setup();
}

/* All PEs wait for PE 0 to complete setup(). */
shmem_barrier_all();
}

SEE ALSO:

shmem_barrier (3) shmem_init (3)

COPYRIGHT

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