23 Apr
2008
23 Apr
'08
7:25 p.m.
Bryan O'Sullivan wrote:
Jim Snow wrote:
The concurrency bug has to do with excessive memory use, and was discussed earlier here on the mailing list (search for Glome). http://hackage.haskell.org/trac/ghc/ticket/2185
Interesting. I looked at your test case. I can reproduce your problem when I build with the threaded runtime and run with a single core, but not if I use +RTS -N2. Did you overlook the possibility that you may not have told GHC how many cores to use?
There's definitely a bug here, regardless of whether this example demonstrates it. Use of par shouldn't introduce a space leak, and currently it can. (fortunately I'm fixing it as we speak...) Cheers, Simon