Parallel iterator in Scala

Question

Is it somehow possible, using Scala\'s parallel collections to parallelize an Iterator without evaluating it completely beforehand?

Here I am t

Answer 1

It's a bit hard to follow exactly what you're after, but perhaps it's something like this:

val f = (x: Int) => x + 1
val s = (0 to 9).toStream map f splitAt(6) match { 
  case (left, right) => left.par; right 
}

This will eveluate f on the first 6 elements in parallel and then return a stream over the rest.