[Haskell-cafe] In-place modification

[Donald Bruce Stewart]

derek.a.elkins:
> On Sun, 2007-07-15 at 00:53 +0200, Hugh Perkins wrote:
> > There's really a tendency in this newsgroup to point people to huge
> > documents, when a small copy and paste would make the answer so much
> > more accessible ;-)
> > 
> > Anyway... so reading through the paper, it looks like its using a
> > priority queue?  Which basically is changing the algorithm somewhat
> > compared to the C# version. 
> > 
> > Anyway, if you can provide a working Haskell version, I'll be happy to
> > run it.  I sortof suspect that if it gave results within 30% of the C#
> > version someone would already have done so ;-)
> 
> It's a six page document, and the point was in the first paragraph.
> 
> Here's part of a giant thread about this that occurred in February:
> http://www.haskell.org/pipermail/haskell-cafe/2007-February/022854.html
> 
> There is a zip file with 15 Haskell implementations and timing
> comparisons to a C version.  The author of that email is, incidentally,
> the author of the paper I referred to.

And those implementations are also in darcs now,

    http://www.cse.unsw.edu.au/~dons/code/nobench/spectral/primes/

along with some others.