On Thu, Jun 21, 2007 at 12:25:44PM +0100, Sebastian Sylvan wrote:
Try using floats for the vector, and strict fields (add a ! to the fields in the data declaration).
Because the optimisation page on the haskell wiki is very explicit about never using Float when you can use Double, that's why. An older revision used Float and it was slower than the current one. Making the datatypes strict also makes no difference. I have tried the obvious things :)
That's the simplest possible thing I can think of after about two seconds of looking anyway. It appears that the ML version uses float so I don't understand why you would use Double for the Haskell version at all, and then think you could do any sort of valid comparisons between them...
OCaML floats are Doubles, at least on x86. cheers, Phil -- http://www.kantaka.co.uk/ .oOo. public key: http://www.kantaka.co.uk/gpg.txt _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
