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using vecLib BLAS in 3.0
4 messages · Chris Paciorek, Simon Urbanek, Peter Dalgaard +1 more
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
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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 Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd.mes at cbs.dk Priv: PDalgd at gmail.com
... 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
Yes, that's what I did. I recently switched back from a locally compiled GotoBLAS to VecLib because that latter is consistently faster on my current machine (Retina MacBook Pro) and OS (10.8). I've previously had issues with VecLib BLAS that prompted me to explore various alternatives, but they seem to have gone away ... so I'm very much in favour of resuscitating VecLib BLAS in the Mac installer package. Best, Stefan