Ben*_*ord 0 parallel-processing multithreading haskell multicore
我正在尝试在OS X 10.5上的GHC 6.10.4(来自MacPorts)中运行并行代码
我在makefile中使用-threaded构建:
GHC=ghc -prof -auto-all -O -threaded
glicko: glicko.hs Lib.hs
$(GHC) --make -main-is Glicko glicko.hs lib.hs
当我调用./glicko +RTS -N或./glicko +RTS -N1代码运行时,似乎只使用一个CPU.如果我调用as ./glicko +RTS -N2,那么我将获得记录命令行参数的运行时帮助消息; 但是文档表明这应该运行该程序.
为什么-N2不起作用？
这里有更多时间信息:
$ ./glicko +RTS --info
[("GHC RTS", "YES")
,("GHC version", "6.10.4")
,("RTS way", "rts_thr_p")
,("Host platform", "i386-apple-darwin")
,("Host architecture", "i386")
,("Host OS", "darwin")
,("Host vendor", "apple")
,("Build platform", "i386-apple-darwin")
,("Build architecture", "i386")
,("Build OS", "darwin")
,("Build vendor", "apple")
,("Target platform", "i386-apple-darwin")
,("Target architecture", "i386")
,("Target OS", "darwin")
,("Target vendor", "apple")
,("Word size", "32")
,("Compiler unregisterised", "NO")
,("Tables next to code", "YES")
]