Thank you, I can run off and do some more tests with this information. I think the culprit on my development machine is that Xcode needs to be upgraded and then I can use -mtune=core2. I have one small follow-up question. I thought the compilation flags for building src/extra/blas had changed from version 2.12.0 to 2.11.1. But you suggest maybe they haven't changed?
On Wed, Nov 3, 2010 at 6:31 AM, Simon Urbanek <simon.urba...@r-project.org> wrote: > > The current build flags for i386 are listed in > https://svn.r-project.org/R-dev-web/trunk/QA/Simon/R-build/conf.leopard-i386 > > They did not change recently so they were the same for 2.11.1. The compiler > used is gcc-4.2 from Xcode 3.1.4 (R is built on OS X 10.5.8) with the > corresponding Fortran form the tools page. > > To get back to your problem - did you try the single threaded ATLAS for your > problem? I did try ATLAS and did not see performance improvements. But that attempt was without -mtune=core2. _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-mac
