Windows 上的多核 Haskell

发布于 2024-07-15 06:16:48 字数 1062 浏览 3 评论 0原文

我读过一些教程在 Haskell 上。但是，我无法让编译后的应用程序在 Windows（32 位） 上的多核（我有一个 Intel 四核）上运行。

我尝试了很多方法：

ghc -O2 --make A.hs -threaded
< a href="http://cgi.cse.unsw.edu.au/~dons/blog/2007/11/29" rel="nofollow noreferrer">./real-par +RTS -N2
< a href="http://cgi.cse.unsw.edu.au/~dons/blog/2007/11/29" rel="nofollow noreferrer">./real-par +RTS -N4

但是没有运气。

编译后的应用程序仅在一个核心上 100% 运行。

有任何想法吗？

代码：

import Control.Parallel
import Control.Monad
import Text.Printf

fib :: Int -> Int
fib 0 = 0
fib 1 = 1
fib n = l `pseq` r `pseq` l+r
    where
    l = fib (n-1)
    r = fib (n-2)

main = forM_ [0..350] $ \i ->
        printf "n=%d => %d\n" i (fib i)

原文

I've been reading a number of tutorials on Haskell. However, I have not been able to get the compiled application to run on a multicore (I have an Intel Quad Core) on windows (32 bit).

I have tried a number of things:

But no luck.

The compiled application runs 100% on one core only.

Any ideas?

Code:

import Control.Parallel
import Control.Monad
import Text.Printf

fib :: Int -> Int
fib 0 = 0
fib 1 = 1
fib n = l `pseq` r `pseq` l+r
    where
    l = fib (n-1)
    r = fib (n-2)

main = forM_ [0..350] $ \i ->
        printf "n=%d => %d\n" i (fib i)

分享到QQ

分享到微博