[Haskell-cafe] Concurrency performance problem

Łukasz Dąbek sznurek at gmail.com
Mon Mar 4 23:23:01 CET 2013


2013/3/4  <briand at aracnet.com>:
> do you have a link to the new code ?

Diff is at the bottom of original code: http://hpaste.org/83460.

If you just pass -N, GHC automatically sets the number of threads
> based on the number of cores on your machine.


Yes, I know that. I am just wondering why seemingly single threaded
computation (look at singleThreadIntegrate in source code from first post)
runs slower with increasing number of cores available (set through -N
option).

--
Łukasz Dąbek
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