[Haskell-cafe] Re: seg-fault in mersenne-random with SSE2 (was Performance question)

Don Stewart dons at galois.com
Thu Feb 26 11:24:52 EST 2009

> > From: haskell-cafe-bounces at haskell.org 
> > [mailto:haskell-cafe-bounces at haskell.org] On Behalf Of Roel van Dijk
> > 
> > I replaced the standard random number generated with the one from
> > mersenne-random. On my system this makes the resulting program about
> > 14 times faster than the original. I also made a change to
> > accumulateHit because it doesn't need to count to total. That is
> > already known.
> I tried this too, but got a seg fault (!), so I stripped it back to a
> small test program. This is with mersenne-random, setup configured with
> -fuse_sse2:

This in the past has always meant: wrong architecture (or GCC can't handle sse2 on your system)

-- Don

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