MPI_Barrier - Blocks until all processes have reached the
routine at which the barrier is placed
SYNOPSIS
C:
#include <mpi.h>
int MPI_Barrier ( comm )
MPI_Comm comm;
C++:
#include <mpi.h>
void Intracomm::Barrier() const
Fortran:
INCLUDE "mpif.h" (or USE MPI)
INTEGER comm, ierror
CALL MPI_BARRIER(comm, ierror)
STANDARDS
This release implements the MPI 1.2 standard, as
documented by the MPI Forum in the spring 1997 release of
MPI: A Message Passing Interface Standard.
DESCRIPTION
The MPI_Barrier routine blocks until all processes have
reached the routine at which the barrier is placed. It
blocks the caller until all group members have called it;
the call returns at any process only after all group
members have entered the call. This routine accepts the
following parameter:
comm Specfies the communicator (handle)
ierror Specifies the return code value for successful
completion, which is in MPI_SUCCESS.
MPI_SUCCESS is defined in the mpif.h file.
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