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


       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.


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