NAME¶
MPI_Comm_remote_size - Determines the size of the remote group
associated with an intercommunicator.
SYNTAX¶
C Syntax¶
#include <mpi.h>
int MPI_Comm_remote_size(MPI_Comm comm, int *size)
Fortran Syntax¶
INCLUDE 'mpif.h'
MPI_COMM_REMOTE_SIZE( COMM, SIZE, IERROR)
INTEGER COMM, SIZE, IERROR
C++ Syntax¶
#include <mpi.h>
int Intercomm::Get_remote_size() const
- comm
- Communicator (handle).
OUTPUT PARAMETERS¶
- size
- Number of processes in the remote group of comm
(integer).
- IERROR
- Fortran only: Error status (integer).
DESCRIPTION¶
MPI_Comm_remote_size determines the size of the remote group associated with an
intercommunicator.
The intercommunicator accessors (MPI_Comm_test_inter, MPI_Comm_remote_size,
MPI_Comm_remote_group) are all local operations.
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_Comm_test_inter
MPI_Comm_remote_group
MPI_Intercomm_create
MPI_Intercomm_merge