[Haskell-cafe] Performance problem with random numbers

Lennart Augustsson lennart at augustsson.net
Sun Oct 14 12:05:27 EDT 2007


The Mersenne twister should be able to split better than most. but I'm not
sure how efficient it is.

On 10/14/07, Isaac Dupree <isaacdupree at charter.net> wrote:
>
> Don Stewart wrote:
> > I've seen similar results switching to the SIMD mersenne twister C
> > implementation for randoms:
> >
> >     http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html
> >
> > If there's interest, I can package up the bindings for hackage.
>
> looks nice... at least for those of us who have non-old computer
> CPUs.... Is there a decent way to implement 'split'? A way that doesn't
> take too long to run, and produces fairly independent generators?
>
> Isaac
>
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