Andrew Nguyen

Maybe have the signature be: ``` scala def parSumOption[T](items: TraversableOnce[T])(TraversableOnce[T] => Int) etc ``` ? I was imagining some sort of function that lets you determine the amount of parallelization...

Also if the return value is Option[T] that means it's OK to Await somewhere in the method body? Likewise, would there be anything wrong with using parallel collections?

More accurately, 2 SketchMaps are made.

Er, I might be misunderstanding you or I might have not been very clear but the idea is to NOT to create all N SketchMaps. Imagine adding two vectors together-...

Does this have to do with not saving interpreter state?