MPI_Send(3)                        Open MPI                        MPI_Send(3)



NAME
       MPI_Send - Performs a standard-mode blocking send.


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


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


C++ Syntax
       #include <mpi.h>
       void Comm::Send(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 send (nonnegative integer).

       datatype  Datatype of each send buffer element (handle).

       dest      Rank of destination (integer).

       tag       Message tag (integer).

       comm      Communicator (handle).


OUTPUT PARAMETER
       IERROR    Fortran only: Error status (integer).


DESCRIPTION
       MPI_Send performs a standard-mode, blocking send.


NOTE
       This routine will block until the message is sent to the destination.
       For an in-depth explanation of the semantics of the standard-mode send,
       refer to the MPI-1 Standard.


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_Isend
       MPI_Bsend
       MPI_Recv




1.4.1                            Jan 14, 2010                      MPI_Send(3)
