9 Apr
2009
9 Apr
'09
11:51 a.m.
Not with cabal, with GHC, yes: assuming you have enough modules. Use ghc -M to dump a makefile, and then make -j20 (or whatever you have)
There is a performance penalty to running ghc on separate files vs --make. If your number of core's is limited --make may be better. I'd love someone to figure out what the cross over point is :-) As a related question, how does GHC implement -j3? For my programs, if I want to run in parallel, I have to type +RTS -N3. Can I use the same trick as GHC? Thanks Neil