MPI_SENDRECV_REPLACE(3)MPI_SENDRECV_REPLACE(3)NAMEMPI_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:
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MPI_SENDRECV_REPLACE(3)MPI_SENDRECV_REPLACE(3)
count Specifies the number of elements in the send and 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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