openmpi/etc/openmpi-default-hostfile

#
# Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
#                         University Research and Technology
#                         Corporation.  All rights reserved.
# Copyright (c) 2004-2005 The University of Tennessee and The University
#                         of Tennessee Research Foundation.  All rights
#                         reserved.
# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
#                         University of Stuttgart.  All rights reserved.
# Copyright (c) 2004-2005 The Regents of the University of California.
#                         All rights reserved.
# $COPYRIGHT$
# 
# Additional copyrights may follow
# 
# $HEADER$
#
# This is the default hostfile for Open MPI.  Notice that it does not
# contain any hosts (not even localhost).  This file should only
# contain hosts if a system administrator wants users to always have
# the same set of default hosts, and is not using a batch scheduler
# (such as SLURM, PBS, etc.).  
#
# If you are primarily interested in running Open MPI on one node, you
# should *not* simply list "localhost" in here (contrary to prior MPI
# implementations, such as LAM/MPI).  A localhost-only node list is
# created by the RAS component named "localhost" if no other RAS
# components were able to find any hosts to run on (this behavior can
# be disabled by excluding the localhost RAS component by specifying
# the value "^localhost" [without the quotes] to the "ras" MCA
# parameter).