map.scala

object `map` {

  def main (args: Array[String]) {
    val start = System.nanoTime
    println("\n(Map) multiplying 20 million elements by 2")
    val dbls = (1L to 20000000L).map(_*2)
    //val dbls = (1L to 20000000L).toArray.map(_*2)
    //val dbls = (1L to 20000000L).toVector.map(_*2)
    //val dbls = (1L to 20000000L).par.map(_*2)
    println("(Reduce) sum: %d".format(dbls.sum))
    val end = System.nanoTime
    println("Total MapReduce time: %f".format((end-start)/1.0e9))
  }

}