MPI_Irecv

Begins a nonblocking receive

Synopsis

#include "mpi.h"
int MPI_Irecv( buf, count, datatype, source, tag, comm, request )
void             *buf;
int              count;
MPI_Datatype     datatype;
int              source;
int              tag;
MPI_Comm         comm;
MPI_Request      *request;

Input Parameters

	buf	initial address of receive buffer (choice)
	count	number of elements in receive buffer (integer)
	datatype	datatype of each receive buffer element (handle)
	source	rank of source (integer)
	tag	message tag (integer)
	comm	communicator (handle)

Output Parameter

request: communication request (handle)

Notes for Fortran

All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK) havean additional argument ierr at the end of the argument list. ierris an integer and has the same meaning as the return value of the routinein C. In Fortran, MPI routines are subroutines, and are invoked with thecall statement.

All MPI objects (e.g., MPI_Datatype, MPI_Comm) are of type INTEGERin Fortran.

Location:irecv.c