|buf||Initial address of send buffer (choice).|
|count||Number of elements in send buffer (nonnegative integer).|
|datatype||Datatype of each send buffer element (handle).|
|dest||Rank of destination (integer).|
|tag||Message tag (integer).|
IERROR Fortran only: Error status (integer).
A ready send may only be called if the user can guarantee that a receive is already posted. It is an error if the receive is not posted before the ready send is called.
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.
|1.10.2||MPI_RSEND (3)||Jan 21, 2016|