60 строки
1.2 KiB
Plaintext
60 строки
1.2 KiB
Plaintext
.\" -*- nroff -*-
|
|
.\" Copyright (c) 2015 University of Houston. All rights reserved.
|
|
.\" Copyright (c) 2015 Mellanox Technologies, Inc.
|
|
.\" $COPYRIGHT$
|
|
.de Vb
|
|
.ft CW
|
|
.nf
|
|
..
|
|
.de Ve
|
|
.ft R
|
|
|
|
.fi
|
|
..
|
|
.TH "SHMEM\\_BARRIER\\_ALL" "3" "#OMPI_DATE#" "#PACKAGE_VERSION#" "#PACKAGE_NAME#"
|
|
.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)
|