In the case of REvolution R, David mentioned using the Intel MKL, proprietary library which may not be distributed in the way R is distributed. Maybe REvolution has a license to redistribute the library. For the others, I suspect Gabor has the right idea, that the R-core team would rather not keep architecture dependent code in the sources, although there is a very small amount already (`grep -R __asm__`).
However, I know using Linux (Debian in particular) it is fairly straightforward to build R with `enhanced' BLAS libraries. The R Administration and Installation manual has a pretty good section on linking with enhanced BLAS and LAPACK libs, including the Intel MKL, if you are willing cough up $399, or swear not to use the library commercially or academically. Maybe a short tutorial using free software, such as ATLAS would be suitable content for an r-bloggers post :) ? Matt Shotwell Graduate Student Div. Biostatistics and Epidemiology Medical University of South Carolina On Fri, 2010-06-11 at 19:21 -0400, Tal Galili wrote: > Hello all, > I came > across<http://www.r-bloggers.com/performance-benefits-of-linking-r-to-multithreaded-math-libraries/> > David > Smith's new post > Performance benefits of linking R to multithreaded math > libraries<http://blog.revolutionanalytics.com/2010/06/performance-benefits-of-multithreaded-r.html> > Which explains how (and why) REvolution distribution of R uses > different BLAS math libraries for R, so to > allow multi-threaded mathematical computation. > What the post doesn't explain is why it is that native R distribution > doesn't use the multi-threaded version of the libraries. Is it because > R-devel team didn't get to it yet or is it for some technical reason. > Could someone please help to explain the situation? > > Thanks in advance, > Tal > > p.s: I wasn't sure if to send the question here or to R-devel, I decided to > send it here. If I am in the wrong - please let me know. > > > > ----------------Contact > Details:------------------------------------------------------- > Contact me: tal.gal...@gmail.com | 972-52-7275845 > Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | > www.r-statistics.com (English) > ---------------------------------------------------------------------------------------------- > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
