17.2.71. MPI_Comm_remote_size
MPI_Comm_remote_size - Determines the size of the remote group associated with an intercommunicator.
17.2.71.1. SYNTAX
17.2.71.1.1. C Syntax
#include <mpi.h>
int MPI_Comm_remote_size(MPI_Comm comm, int *size)
17.2.71.1.2. Fortran Syntax
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_COMM_REMOTE_SIZE(COMM, SIZE, IERROR)
INTEGER COMM, SIZE, IERROR
17.2.71.1.3. Fortran 2008 Syntax
USE mpi_f08
MPI_Comm_remote_size(comm, size, ierror)
TYPE(MPI_Comm), INTENT(IN) :: comm
INTEGER, INTENT(OUT) :: size
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
17.2.71.2. INPUT PARAMETER
comm
: Communicator (handle).
17.2.71.3. OUTPUT PARAMETERS
size
: Number of processes in the remote group of comm (integer).IERROR
: Fortran only: Error status (integer).
17.2.71.4. 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.
17.2.71.5. 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.