NAME

       MPI_Rsend_init - Builds a handle for a ready send.

SYNTAX

C Syntax

       #include <mpi.h>
       int MPI_Rsend_init(void *buf, int count, MPI_Datatype datatype,
            int dest, int tag, MPI_Comm comm, MPI_Request *request)

Fortran Syntax

       INCLUDE 'mpif.h'
       MPI_RSEND_INIT(BUF, COUNT, DATATYPE, DEST, TAG, COMM, REQUEST,
                 IERROR)
            <type>    BUF(*)
            INTEGER   COUNT, DATATYPE, DEST, TAG, COMM, REQUEST, IERROR

C++ Syntax

       #include <mpi.h>
       Prequest Comm::Rsend_init(const void* buf, int count, const
            Datatype& datatype, int dest, int tag) const

INPUT PARAMETERS

       buf       Initial address of send buffer (choice).

       count     Number of elements sent (integer).

       datatype  Type of each element (handle).

       dest      Rank of destination (integer).

       tag       Message tag (integer).

       comm      Communicator (handle).

OUTPUT PARAMETERS

       request   Communication request (handle).

       IERROR    Fortran only: Error status (integer).

DESCRIPTION

       Creates a persistent communication object for a ready mode send operation, and binds to it
       all the arguments of a send operation.

       A communication (send or receive) that uses a  persistent  request  is  initiated  by  the
       function MPI_Start.

ERRORS

       Almost all MPI routines return an error value; C routines as the value of the function and
       Fortran routines in the last argument. C++ functions do not return errors. If the  default
       error  handler  is  set  to  MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception
       mechanism will be used to throw an MPI:Exception object.

       Before the error value is returned, the current MPI error handler is called.  By  default,
       this  error  handler aborts the MPI job, except for I/O function errors. The error handler
       may   be   changed   with   MPI_Comm_set_errhandler;   the   predefined   error    handler
       MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not
       guarantee that an MPI program can continue past an error.

SEE ALSO

       MPI_Bsend_init
       MPI_Send_init
       MPI_Sssend_init
       MPI_Recv_init
       MPI_Start
       MPI_Startall
       MPI_Request_free