[Haskell-cafe] Re[2]: Haskell performance in heavy numerical computations

2006-07-10 Thread Bulat Ziganshin
Hello Simon, Monday, July 10, 2006, 1:12:13 PM, you wrote: numerical speed is poor in ghc 6.4, according to my tests. it's 10-20 times worse than of gcc. afair, the mandelbrot benchmark of Great Language Shootout proves this - despite all optimization attempts, GHC entry is still 5-10 times

Re: [Haskell-cafe] Re[2]: Haskell performance in heavy numerical computations

2006-07-10 Thread Donald Bruce Stewart
bulat.ziganshin: Hello Simon, Monday, July 10, 2006, 1:12:13 PM, you wrote: numerical speed is poor in ghc 6.4, according to my tests. it's 10-20 times worse than of gcc. afair, the mandelbrot benchmark of Great Language Shootout proves this - despite all optimization attempts, GHC

Re: [Haskell-cafe] Re[2]: Haskell performance in heavy numerical computations

2006-07-10 Thread Brent Fulgham
On Jul 10, 2006, at 4:23 AM, Donald Bruce Stewart wrote: Ah! In this case, on the debian, the benchmark has been compiled _without_ -fexcess-precision, that's what's causing the big slow down. We had to turn it on, on the gp4, but it seems the flag wasn't propagated to the debian/sempron builds