Provided by: openmpi-doc_5.0.8-8ubuntu1_all 

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)
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Sep 06, 2025 SHMEM_BARRIER_ALL(3)