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to r-si...@r-project.org
Hi,
I would like to use blas from Apple’s Accelerate framework instead of the reference R blas in R 4.1.0. The FAQ<https://cran.r-project.org/bin/macosx/RMacOSX-FAQ.html#Which-BLAS-is-used-and-how-can-it-be-changed_003f> indicates that two Rblas shared libraries are supplied, libRblas.vecLib.dylib which uses vecLib BLAS and libRblas.0.dylib which uses reference BLAS from R. However, in the current release 4.1 and 4.1-patched binaries, I only see the reference blas. Does the answer in the FAQ no longer apply? I am on Mac OS 11.4, and installed in the default location and looking for the blas libraries here: /Library/Frameworks/R.framework/Versions/Current/Resources/lib. I am looking in the wrong place?
Best,
Ashley
Ashley Stephen Doane, Ph.D.
Postdoctoral Research Associate
Weill Cornell Medicine
Elemento Lab
Institute for Computaional Biomedicine
asd...@med.cornell.edu
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Simon Urbanek
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Jun 14, 2021, 7:33:42 PM6/14/21
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to Ashley Stephen Doane, r-si...@r-project.org
Ashley,
parallel BLAS has been know to cause issues in precision, stability (when mixed with other parallel use) and rarely performance. The vecLib stub has not been part of the distribution for some time now, however, you can download it and enable it as follows: