MPI_Sendrecv_replace - Sends and receives using a single
buffer
SYNOPSIS
C:
#include <mpi.h>
int MPI_Sendrecv_replace( buf, count, datatype, dest,
sendtag, source, recvtag, comm, status )
void *buf;
int count, dest, sendtag, source, recvtag;
MPI_Datatype datatype;
MPI_Comm comm;
MPI_Status *status;
C++:
#include <mpi.h>
void Comm::Sendrecv_replace(
void* buf,
int count,
const Datatype& datatype,
int dest,
int sendtag,
int source,
int recvtag) const
Fortran:
INCLUDE "mpif.h" (or USE MPI)
<type> BUF(*)
INTEGER count, datatype, dest, sendtag, source, recvtag,
comm, status(MPI_STATUS_SIZE), ierror
CALL MPI_SENDRECV_REPLACE(buf, count, datatype, dest, sendtag,
source, recvtag, comm, status(MPI_STATUS_SIZE), 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_Sendrecv_replace routine uses a single buffer to
perform send and receive operations. This routine accepts
the following parameters:
receive buffer (integer)
datatype Specifies the type of elements in the send and
receive buffer (handle)
dest Specifies the rank of the destination (integer)
sendtag Specifies the send message tag (integer)
source Specifies the rank of the source (integer)
recvtag Specifies the receive message tag (integer)
comm Specifies the communicator (handle)
buf Returns the initial address of the send and
receive buffer (choice)
status Returns the status object (status)
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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