On Oct 14, 2007, at 17:54 , ntupel wrote:
Now my problem still is, that I don't know how to speed things up. I tried putting seq and $! at various places with no apparent improvement. Maybe I need to find a different data structure for my random module and lazy lists are simply not working well enough here?
Unfortunately I'm not so good at that myself. Even more unfortunately, my understanding is that randomly using seq and/or $! not only usually doesn't help, but can actually make things slower; and to do it right, you need to refer to the "simplified" Core Haskell code generated by GHC. And understanding *that* requires rather more familiarity with Core than I have. :/ -- brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allbery@kf8nh.com system administrator [openafs,heimdal,too many hats] allbery@ece.cmu.edu electrical and computer engineering, carnegie mellon university KF8NH