2014-04-24 11:02 GMT+02:00 Matthieu Brucher <matthieu.bruc...@gmail.com>:
> Yes. If several threads use the same RNG, you cannot ensure that they
> are always accessing it with the same pattern. The only way to have
> reproductible results is by using PRNG (real ones, because as Sturla
> said, just changing the state of the same RNG won't ensure good
> statistical properties).

Right. I was thinking only of the fork/join case, were the threads
don't interact and the RNGs are discarded at the barrier (e.g. random
forest training).

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