Re: [Haskell-cafe] Quadratic complexity though use of STArrays

` 100 -- `div` cpuTimePrecision    -- putStrLn $ Timing: ++ str ++ ++ show time    return time ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Tobias Olausson tob...@gmail.com

[Haskell-cafe] QuickCheck behaving strange

prop_schedule *** Failed! Falsifiable (after 5 tests and 1 shrink): [((),0,0),((),-1,0)] -- Tobias Olausson tob...@gmail.com ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] QuickCheck behaving strange

It seems this was the case, thank you! /Tobias 2009/7/24 Felipe Lessa felipe.le...@gmail.com: On Fri, Jul 24, 2009 at 08:11:12PM +0200, Tobias Olausson wrote: prop_schedule :: Ord t = [Interval a t] - Bool prop_schedule []        = True prop_schedule [a]       = True prop_schedule (x:y:ys

Re: [Haskell-cafe] Convert IO Int to Int

. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Tobias Olausson tob...@gmail.com ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo

Re: [Haskell-cafe] ST.Lazy vs ST.Strict

This simple implementation of CPU does not behave as expected in the latest version of ghc using ST.Lazy since it updates the `pc` in the wrong order. When we use ghc-6.8 the code works as expected both with lazy and strict ST. How is that? How do we fix this so we can use ghc-6.10. --

[Haskell-cafe] ST.Lazy vs ST.Strict

(loopSys 0) which in turn is being runST'd and then printed Does anyone know why the program just outputs loop when compiled under ghc 6.10.2, and runs perfectly fine under ghc 6.8.2? The program is compiled with --make and -O2 Tobias Olausson tob...@gmail.com

Re: [Haskell-cafe] ST.Lazy vs ST.Strict

guess is that you want one of (1) mdo, when the effects in 'something' only matter once, or (2) unsafeInterleaveST, if you just want to be able to traverse the (x:xs) list lazily and the references it uses are dead after calling foo.  -- ryan On Sun, May 3, 2009 at 10:27 AM, Tobias Olausson

[Haskell-cafe] Memory usage when passing arrays in state

the program spend 96.1% of its total running time collecting garbage? Any tips to make this program perform better are appreciated. Please do tell if anything is unclear. -- Tobias Olausson tob...@gmail.com ___ Haskell-Cafe mailing list Haskell-Cafe

Re: [Haskell-cafe] Memory usage when passing arrays in state

://hackage.haskell.org/trac/ghc/ticket/2727 . It doesn't analyze the cause of the slowness, so it's quite possible that it may be related to GC as in your case. Cheers, Dan On Tue, Mar 3, 2009 at 7:44 PM, Tobias Olausson tob...@gmail.com wrote: Hello all. I am currently implementing