Parallel random number generation with Akka Futures

Question

I'm writing a CPU intensive application built with Akka 2 Futures. I don't need Actors currently but I'm not reluctant to use them.

Several computations enclosed in futures must invoke a random generator, very often. I'm afraid that if I used a classic concurrent RNG, it will become a choking point and I will lose scalability.

What is the most fast/simple way of having a Random generator per thread in the ExecutionContext ?

Is there a way to initialize them all with a different seed (but known in advance) such a to repeat experiment ?

Answer 1

Use akka.jsr166y.ThreadLocalRandom