Re: No "last core parallel slowdown" on OS X

2009-04-18 Thread Austin Seipp
Excerpts from Dave Bayer's message of Sat Apr 18 19:05:34 -0500 2009: > Yikes! You're right. I never noticed, but I never had an 8 GB Mac > before. > > I looked at ./configure for the GHC 6.10.2 source, and realized there > was already something there. I tried > > ./configure --build=x86_64-a

Re: No "last core parallel slowdown" on OS X

2009-04-18 Thread Dave Bayer
Yikes! You're right. I never noticed, but I never had an 8 GB Mac before. I looked at ./configure for the GHC 6.10.2 source, and realized there was already something there. I tried ./configure --build=x86_64-apple-darwin and it didn't work. However, it did give me something to Google, le

Re: No "last core parallel slowdown" on OS X

2009-04-18 Thread Daniel Peebles
That looks great! I wonder what about Mac OS leads to such good performance... Now if only we could get a nice x86_64-producing GHC for Mac OS too, I could use all my RAM and the extra registers my Mac Pro gives me :) On Sat, Apr 18, 2009 at 2:39 PM, Dave Bayer wrote: > I'm a huge fan of the rec

No "last core parallel slowdown" on OS X

2009-04-18 Thread Dave Bayer
I'm a huge fan of the recent paper http://ghcmutterings.wordpress.com/2009/03/03/new-paper-runtime-support-for-multicore-haskell/ which put me over the top to get started writing parallel code in Haskell. Parallel code is now integral to my and my Ph.D. students' research. For example, we re