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MPI_Bsend_init - Builds a handle for a buffered send.
#include <mpi.h>
int MPI_Bsend_init(const void *buf, int count, MPI_Datatype datatype,
int dest, int tag, MPI_Comm comm, MPI_Request *request)
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
import mpi.*;
Prequest MPI.COMM_WORLD.Bsend_init(const void* buf, int count, const
Datatype& datatype, int dest, int tag) const
#include <mpi.h>
Prequest Comm::Bsend_init(Object buf, int offset, int count,
MPI.Datatype datatype, int dest, int tag)
- buf
- Initial address of send buffer (choice).
- offset
- Offset
of starting point in buffer (Java-only).
- count
- Number of elements sent (integer).
- datatype
- Type of each element (handle).
- dest
- Rank of destination (integer).
- tag
- Message tag (integer).
- comm
- Communicator (handle).
- request
- Communication request (handle).
- IERROR
- Fortran only: Error status (integer).
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.
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_Send_init
MPI_Ssend_init
MPI_Rsend_init
MPI_Recv_init
MPI_Start
MPI_Startall
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