What do you exactly mean? I have included link to full source listing: http://hpaste.org/83460.
-- Łukasz Dąbek 2013/3/4 Don Stewart <[email protected]>: > Depends on your code... > > On Mar 4, 2013 6:10 PM, "Łukasz Dąbek" <[email protected]> wrote: >> >> Hello Cafe! >> >> I have a problem with following code: http://hpaste.org/83460. It is a >> simple Monte Carlo integration. The problem is that when I run my >> program with +RTS -N1 I get: >> Multi >> 693204.039020917 8.620632s >> Single >> 693204.039020917 8.574839s >> End >> >> And with +RTS -N4 (I have four CPU cores): >> Multi >> 693204.0390209169 11.877143s >> Single >> 693204.039020917 11.399888s >> End >> >> I have two questions: >> 1) Why performance decreases when I add more cores for my program? >> 2) Why performance of single threaded integration also changes with >> number of cores? >> >> Thanks for all answers, >> Łukasz Dąbek. >> >> _______________________________________________ >> Haskell-Cafe mailing list >> [email protected] >> http://www.haskell.org/mailman/listinfo/haskell-cafe _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
