MPI_Bsend_init(3)                  Open MPI                  MPI_Bsend_init(3)



NAME
       MPI_Bsend_init - Builds a handle for a buffered send.


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


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


C++ Syntax
       #include <mpi.h>
       Prequest Comm::Bsend_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 request for a buffered mode send,
       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_Send_init
       MPI_Ssend_init
       MPI_Rsend_init
       MPI_Recv_init
       MPI_Start
       MPI_Startall




1.4.1                            Jan 14, 2010                MPI_Bsend_init(3)
