.\" -*- nroff -*-
.\" Copyright 2010 Cisco Systems, Inc.  All rights reserved.
.\" Copyright 2006-2008 Sun Microsystems, Inc.
.\" Copyright (c) 1996 Thinking Machines Corporation
.\" Copyright (c) 2020      Google, LLC. All rights reserved.
.\" $COPYRIGHT$
.TH MPI_Comm_remote_group 3 "#OMPI_DATE#" "#PACKAGE_VERSION#" "#PACKAGE_NAME#"
.SH NAME
\fBMPI_Comm_remote_group \fP \- Accesses the remote group associated with an intercommunicator.

.SH SYNTAX
.ft R
.SH C Syntax
.nf
#include <mpi.h>
int MPI_Comm_remote_group(MPI_Comm \fIcomm\fP, MPI_Group\fI *group\fP)

.fi
.SH Fortran Syntax
.nf
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_COMM_REMOTE_GROUP(\fICOMM, GROUP, IERROR\fP)
	INTEGER	\fICOMM, GROUP, IERROR\fP

.fi
.SH Fortran 2008 Syntax
.nf
USE mpi_f08
MPI_Comm_remote_group(\fIcomm\fP, \fIgroup\fP, \fIierror\fP)
	TYPE(MPI_Comm), INTENT(IN) :: \fIcomm\fP
	TYPE(MPI_Group), INTENT(OUT) :: \fIgroup\fP
	INTEGER, OPTIONAL, INTENT(OUT) :: \fIierror\fP

.fi
.SH INPUT PARAMETER
.ft R
.TP 1i
comm
Communicator.

.SH OUTPUT PARAMETERS
.ft R
.TP 1i
group
Remote group of communicator.
.ft R
.TP 1i
IERROR
Fortran only: Error status (integer).

.SH DESCRIPTION
.ft R
MPI_Comm_remote_group accesses the remote group associated with an intercommunicator.
.sp
The intercommunicator accessors (MPI_Comm_test_inter, MPI_Comm_remote_size,
MPI_Comm_remote_group) are all local operations.

.SH ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument.
.sp
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.

.SH SEE ALSO
.sp
.nf
MPI_Comm_test_inter
MPI_Comm_remote_size
MPI_Intercomm_create
MPI_Intercomm_merge