module GetNodeName
  def get_node_name(filename)
    f = open(filename,"r")
    nodes = []
    f.each { |line| nodes.push(line) }
    hostname = `hostname`
    mynum = 0
    if /[0-9]+/ =~ hostname then
      num = $&.to_i
    end
  nodenum = mynum % nodes.size 
  return nodes[nodenum]
  end
end