Parallel mapM on Repa arrays

Question

In my recent work with Gibbs sampling, I\'ve been making great use of the RVar which, in my view, provides a near ideal interface to random number generation. Sadl

Answer 1

It's probably not a good idea to do this due to inherently sequential nature of PRNGs. Instead, you might want to transition your code as follows:

1. Declare an IO function (main, or what have you).
2. Read as many random numbers as you need.
3. Pass the (now pure) numbers onto your repa functions.