MPI_Issend - Starts a nonblocking synchronous send


SYNOPSIS

       C:

            #include <mpi.h>

            int MPI_Issend( buf, count, datatype, dest, tag,
            comm, request )
            void             *buf;
            int              count;
            MPI_Datatype     datatype;
            int              dest;
            int              tag;
            MPI_Comm         comm;
            MPI_Request      *request;

       C++:

            #include <mpi.h>

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

       Fortran:

            INCLUDE "mpif.h" (or USE MPI)

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

            CALL MPI_ISSEND( buf, count, datatype, dest, 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_Issend routine starts a nonblocking synchronous
       send operation.  This routine accepts the following
       parameters:

       buf       Specifies the initial address of the send buffer
                 (choice)

                 buffer (integer)

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

       dest      Specifies the rank of the destination (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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