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.\" Man page generated from reStructuredText.
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.TH "SHMEM_BARRIER_ALL" "3" "May 30, 2025" "" "Open MPI"
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.sp
\fI\%shmem_barrier_all\fP \- Suspends the execution of the calling PE until all
other PEs issue a call to this particular shmem_barrier_all() statement.
.SH SYNOPSIS
.sp
C or C++:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
#include <mpp/shmem.h>
void shmem_barrier_all(void)
.ft P
.fi
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.UNINDENT
.sp
Fortran:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
include \(aqmpp/shmem.h\(aq
CALL SHMEM_BARRIER_ALL
.ft P
.fi
.UNINDENT
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.SH DESCRIPTION
.sp
The \fI\%shmem_barrier_all\fP routine does not return until all other PEs have
entered this routine at the same point of the execution path.
.sp
Prior to synchronizing with other PEs, \fI\%shmem_barrier_all\fP ensures
completion of all previously issued local memory stores and remote
memory updates issued via SHMEM functions such as \fI\%shmem_put32\fP(3).
.SH EXAMPLES
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
setup_data()
{
if (shmem_my_pe() == 0) {
setup();
}
/* All PEs wait for PE 0 to complete setup(). */
shmem_barrier_all();
}
.ft P
.fi
.UNINDENT
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.sp
\fBSEE ALSO:\fP
.INDENT 0.0
.INDENT 3.5
\fIshmem_barrier\fP(3) \fIshmem_init\fP(3)
.UNINDENT
.UNINDENT
.SH COPYRIGHT
2003-2025, The Open MPI Community
.\" Generated by docutils manpage writer.
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