[R-SIG-Mac] using vecLib BLAS in 3.0

[peter dalgaard]

On May 23, 2013, at 03:25 , Simon Urbanek wrote:

> On May 22, 2013, at 6:29 PM, Chris Paciorek wrote:
> 
>> In R 2.15, one had the option of switching the libRblas.dylib symlink
>> between libRblas.0.dylib and libRblas.vecLib.dylib. This is discussed in
>> http://cran.r-project.org/bin/macosx/RMacOSX-FAQ.html#Which-BLAS-is-used-and-how-can-it-be-changed_003f
>> 
>> As of 3.0 (either 3.0.0 or 3.0.1), I no longer see libRblas.vecLib.dylib in
>> the Mac binary, and therefore the instructions in the link are no longer
>> accurate or vecLib is accidentally missing. I don't see any information on
>> this in the "Changes in R" document.
>> 
> 
> ... because it has nothing to do with R itself. It was merely a packaging bonus that inadvertently disappeared as we switched OS on the build machine. You can still do it yourself - either by copying the vecLib.dylib from the previous version or by symlinking the Accelerate framework. I'll see if I can restored it going forward.
> 
> Cheers,
> Simon
> 

Could you be a little more specific (and perhaps update the FAQ) ? Does it work to

ln -s  /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/Versions/Current/libBLAS.dylib libRblas.dylib  

-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
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Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com