SYNTAX
C Syntax
#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)
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
import mpi.*; Prequest MPI.COMM_WORLD.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.