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MPI_Send - Performs a standard-mode blocking send.
#include <mpi.h>
int MPI_Send(const void *buf, int count, MPI_Datatype datatype, int dest,
int tag, MPI_Comm comm)
USE MPI
! or the older form: INCLUDE ’mpif.h’
MPI_SEND(BUF, COUNT, DATATYPE, DEST, TAG, COMM, IERROR)
<type> BUF(*)
INTEGER COUNT, DATATYPE, DEST, TAG, COMM, IERROR
USE mpi_f08
MPI_Send(buf, count, datatype, dest, tag, comm, ierror)
TYPE(*), DIMENSION(..), INTENT(IN) :: buf
INTEGER, INTENT(IN) :: count, dest, tag
TYPE(MPI_Datatype), INTENT(IN) :: datatype
TYPE(MPI_Comm), INTENT(IN) :: comm
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
- 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).
- IERROR
- Fortran only: Error
status (integer).
MPI_Send performs a standard-mode, blocking
send.
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.
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.
MPI_Isend
MPI_Bsend
MPI_Recv
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