MPI_Comm_get_parent - Return the parent intercommunicator
of the current process
SYNOPSIS
C:
#include <mpi.h>
int MPI_Comm_get_parent( parent)
MPI_Comm *parent;
Fortran:
INCLUDE "mpif.h" (or USE MPI)
INTEGER parent, ierror
CALL MPI_COMM_GET_PARENT(parent, ierror)
DESCRIPTION
If a process was started with MPI_Comm_spawn or
MPI_Comm_spawn_multiple, MPI_Comm_get_parent returns the
parent intercommunicator of the current process. If the
process was not spawned, MPI_Comm_get_parent returns
MPI_COMM_NULL.
This routine accepts the following parameters:
parent Returns the parent intercommunicator of the
current process. A return value of
MPI_COMM_NULL indicates the process was not
spawned.
ierror Specifies the return code value for successful
completion.
NOTES
Error codes are the values returned by MPI routines (in C)
or in the ierror argument (in Fortran). These can be
converted to error classes by using the MPI_Error_class(3)
routine.
SEE ALSO
MPI_Comm_spawn(3), MPI_Comm_spawn_multiple(3)
mpi(1), mpirun(1)
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