On Mon, Mar 05, 2007 at 08:36:29AM -0600, John Goerzen wrote: > On Mon, Mar 05, 2007 at 12:59:17PM +0000, Simon Marlow wrote: > > There seems to be a common misconception that forkOS is necessary to get > > certain kinds of concurrency, and forkIO won't do. I don't know where this > > comes from: the documentation does seem to be quite clear to me. The only > > reason to use forkOS is for interacting with foreign code that uses > > thread-local state; everytyhing else can be done with forkIO (and it is > > usually better to use forkIO). > > >From reading the docs, it sounds like forkIO keeps everything in a > single OS thread/process. Doesn't this mean that a program that uses > forkIO instead of forkOS loses out on SMP machines?
You can use e.g. +RTS -N2 to use 2 OS threads. Thanks Ian _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
