MPI_Irecv(3)

NAME
     MPI_Irecv - Begins a nonblocking receive

SYNOPSIS
     C:

          #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;


     C++:

          #include <mpi.h>

          Request Comm::Irecv(
          void*             buf,
          int               count,
          const Datatype&   datatype,
          int               source,
          int               tag) const


     Fortran:

          INCLUDE "mpif.h" (or USE MPI)

          <type> BUF(*)
          INTEGER count, datatype, source, tag, comm, request, ierror

          CALL MPI_IRECV(buf, count, datatype, source, tag, comm, request, 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_Irecv routine begins a nonblocking receive.  This routine accepts
     the following parameters:
     buf       Specifies the initial address of the receive buffer (choice)

     count     Specifies the number of elements in the receive buffer
               (integer)

     datatype  Specifies the data type of each receive buffer element (handle)

     source    Specifies the rank of the source (integer)

     tag       Specifies the message tag (integer)

     comm      Specifies the communicator (handle)

     request   Returns the communication request (handle)

     ierror    Specifies the return code value for successful completion,
               which is in MPI_SUCCESS.  MPI_SUCCESS is defined in the mpif.h
               file.