map.scala

// map.scala
object `map` {
  def main (args: Array[String]) {
    val start = System.nanoTime
    println("\n(Map) multiplying 60 million elements by 2")
    val dbls = (1L to 60000000L).toArray.map(_*2)
    println("(Reduce) sum: %d".format(dbls.sum))
    val end = System.nanoTime
    println("Total MapReduce time: %f".format((end-start)/1.0e9))
  }
}

// breeze_map.scala
import breeze.linalg.DenseVector
object breeze_map {
  def main(args: Array[String]): Unit = {
    val start = System.nanoTime
    println("\n(Map) multiplying 60 million elements by 2")
    val dbls = DenseVector((1L to 60000000L).toArray) :* 2L
    println("(Reduce) sum: %d".format(dbls.sum))
    val end = System.nanoTime
    println("Total MapReduce time: %f".format((end-start)/1.0e9))
  }
}

// saddle_map.scala
import org.saddle.{Vec, Series}
object saddle_map {
  def main(args: Array[String]): Unit = {
    val start = System.nanoTime
    println("\n(Map) multiplying 60 million elements by 2")
    val dbls = Series(Vec((1L to 60000000L).toArray))*2L
    println("(Reduce) sum: %d".format(dbls.sum))
    val end = System.nanoTime
    println("Total MapReduce time: %f".format((end-start)/1.0e9))
  }
}