18.2.70. MPI_Comm_remote_group
MPI_Comm_remote_group - Accesses the remote group associated with an intercommunicator.
18.2.70.1. SYNTAX
18.2.70.1.1. C Syntax
#include <mpi.h>
int MPI_Comm_remote_group(MPI_Comm comm, MPI_Group *group)
18.2.70.1.2. Fortran Syntax
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_COMM_REMOTE_GROUP(COMM, GROUP, IERROR)
INTEGER COMM, GROUP, IERROR
18.2.70.1.3. Fortran 2008 Syntax
USE mpi_f08
MPI_Comm_remote_group(comm, group, ierror)
TYPE(MPI_Comm), INTENT(IN) :: comm
TYPE(MPI_Group), INTENT(OUT) :: group
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
18.2.70.2. INPUT PARAMETER
comm
: Communicator.
18.2.70.3. OUTPUT PARAMETERS
group
: Remote group of communicator.IERROR
: Fortran only: Error status (integer).
18.2.70.4. DESCRIPTION
MPI_Comm_remote_group accesses 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.
18.2.70.5. ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument.
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.