.\" -*- nroff -*-
.\" Copyright (c) 2015      University of Houston.  All rights reserved.
.\" Copyright (c) 2015      Mellanox Technologies, Inc.
.\" $COPYRIGHT$
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.TH "SHMEM\\_BARRIER\\_ALL" "3" "Jan 31, 2017" "2.0.2" "Open MPI"
.SH NAME

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

C or C++:
.Vb
#include <mpp/shmem.h>

void shmem_barrier_all(void);
.Ve
Fortran:
.Vb
include 'mpp/shmem.h'

CALL SHMEM_BARRIER_ALL
.Ve
.SH 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.
.PP
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 \fIshmem_put32\fP(3)\&.
.PP
.SH EXAMPLES

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

  /* All PEs wait for PE 0 to complete setup().  */
  shmem_barrier_all();
}
.Ve
.PP
.SH SEE ALSO

\fIshmem_barrier\fP(3),
\fIshmem_init\fP(3)