'Configure /etc/hosts on all StarCluster nodes'

def _setup_etc_hosts(self, nodes=None):

    log.info('Configuring    /etc/hosts    on    each    node')
    nodes = (nodes or self._nodes)
    for node in nodes:
        self.pool.simple_job(node.add_to_etc_hosts, (nodes,), jobid=node.alias)
    self.pool.wait(numtasks=len(nodes))
