def METHOD_NAME(options, head_node):
    sos_command = [ 'ssh', options.cluster, 'ssh', head_node,
                   '"ceishell30',
                   '-parent', 'connect://' + socket.gethostname() + '\?port=' + str(options.cei_port),
                   '-child', 'listen://\?nconnections=' + str(options.select * options.procs) + '\&timeout=-1\&port=' + str(options.sos_port),
                   '-role', 'SOS"' ]
    if options.debug:
        print 'SOS remote lauch command:', sos_command
    return subprocess.Popen(sos_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)