Hi Bulat, I hope you don't mind me asking this, but when you state that "idiomatic haskell is much slower than idiomatic C", what do you mean by "much slower"? 2 times? 3 times? 20 times? Order of magnitude? I'm not going to disagree with you, however it seems to me the gap is closing. My opinion may be colored by having just examined Masayuki Takagi's SPH code, which I considered very idiomatic Haskell and for me performed equivalently to his C++ code with the changes I detailed in an earlier email (none of which involved any substantial changes to his code or style in my opinion). Best, John
From: Bulat Ziganshin
i don't say that haskell is slow for real programs. i say that idiomatic haskell is much slower than idiomatic C and these papers demonstrates how much, for simple computation-intensive loops
-- Best regards, Bulat mailto:Bulat.Ziganshin@gmail.com