marlowsd: > Neal Alexander wrote: > >Thomas DuBuisson wrote: > >> It seems like we could get some priority based scheduling (and still > >> be slackers) if we allow marked green threads to be strictly > >> associated with a specific OS thread (forkChildIO?). > >> > >> > >>I think you want the GHC-only GHC.Conc.forkOnIO > >> > >GHC.Conc.forkOnIO is helpful but doest work in this case - it doesn't > >attach them to the same OS thread. > > But it does attach the thread to a particular "virtual CPU" in the GHC RTS > (we call them "capabilities"), with the intention that a virtual CPU > corresponds more or less to a real CPU core.
Every time Simon responds on questions of parallelism and the GHC runtime, I learn something. That indicates to me that we've got a 'bus error' situation with how to effectively use the smp runtime. Simon: time for a multicore FAQ wiki page to gather this knowledge, like we did for the performance tips? Somewhere to paste these insights? -- Don _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
