Does this binary of ATLAS also work on a Core 2 Duo cpu? Thanks.

Huang

On Thu, Oct 21, 2010 at 9:39 AM, Simon Urbanek
<simon.urbanek@r-project.org>wrote:

> On Oct 20, 2010, at 7:35 PM, Steven McKinney wrote:
>
> > I have R 2.11.1 installed (soon will update to R 2.12) and I appear to
> have a Nehalem-based Mac Pro.
> >
> > I'm trying to find documentation about how to set up R on my Mac so I'm
> using the ATLAS BLAS.
> >
>
> Well, you have to get it [=ATLAS] first. Then it's as easy as pointing the
> libRblas.dylib symlink to it.
>
>
> I have a binary of ATLAS that you can use if you have Mac OS X 10.6 (Snow
> Leopard) it's at
> http://r.research.att.com/libatlas-MacPro.dylib
>
> So the copy/paste steps (you have to be admin) are:
>
> cd /Library/Frameworks/R.framework/Resources/lib
> curl -O http://r.research.att.com/libatlas-MacPro.dylib
> chmod a+x libatlas-MacPro.dylib
> ln -sfn libatlas-MacPro.dylib libRblas.dylib
>
>
> ## if you want to go back to vecLib
> cd /Library/Frameworks/R.framework/Resources/lib
> ln -sfn libRblas.vecLib.dylib libRblas.dylib
>
> ## if you want to use R's BLAS (not as fast but more reliable)
> cd /Library/Frameworks/R.framework/Resources/lib
> ln -sfn libRblas.0.dylib libRblas.dylib
>
>
> > I installed this version of R using the Mac installer R-2.11.1.pkg.
> > Does this installer set up R that uses the ATLAS BLAS, or are there
> > additional steps I need to take to have R use the ATLAS BLAS?
> >
> > Once R is up and running, can anyone tell me how I can determine
> > which BLAS R is using?
> >
>
> Indirectly, just look at the output of
> ls -l /Library/Frameworks/R.framework/Resources/lib/libRblas.dylib
>
> Cheers,
> Simon
>
>
>
> > Any info appreciated.
> >
> >
> >
> >> sessionInfo()
> > R version 2.11.1 (2010-05-31)
> > x86_64-apple-darwin9.8.0
> >
> > locale:
> > [1] en_CA.UTF-8/en_CA.UTF-8/C/C/en_CA.UTF-8/en_CA.UTF-8
> >
> > attached base packages:
> > [1] stats     graphics  grDevices utils     datasets  methods   base
> >
> > loaded via a namespace (and not attached):
> > [1] tools_2.11.1
> >
> >
> >
> >
> > Steven McKinney
> >
> > _______________________________________________
> > R-SIG-Mac mailing list
> > R-SIG-Mac@stat.math.ethz.ch
> > https://stat.ethz.ch/mailman/listinfo/r-sig-mac
> >
> >
>
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