Kenny, On 17 December 2017 at 09:28, Kenny Bell wrote: | Hi R-devel list, | | OpenBLAS is readily available for unix-likes: | | https://cloud.r-project.org/web/packages/gcbd/vignettes/gcbd.pdf
Please consider re-reading this vignette of mine. BLAS is an interface, OpenBLAS is but one implementation. R has allowed you to switch between different implementations for a long time (if you used a shared library build), and illustrating / measuring the possible performance differences is the whole point of the gcbd benchmarking package. | However, my questions are: | | 1) Would R-devel consider using OpenBLAS for the main distribution of R for | all platforms including Windows? | 2) If so, would R-devel set the default multi-thread level to the number of | (real) cores on a machine? It's complicated. If you fork at the process-level (with package parallel or one of the many other mechansim) and then also used multi-threaded BLAS you can starve yourself for resources quickly. | My sense is there're a lot of wasted resources on laptops and personal | desktops around the world that could be utilised by such a switch. I | believe most unix-like users don't know about OpenBLAS and are blissfully | ignorant of the available speed gains. It seems to be quite difficult for a | typical Windows user to get this done today. Many things a developer / power-user would do are very difficult on Windows. It is one of the charms of the platform. On the other hand you do get a few solitaire games so I guess everybody is happy. Dirk | Thanks heaps, | Kenny | | [[alternative HTML version deleted]] | | ______________________________________________ | R-devel@r-project.org mailing list | https://stat.ethz.ch/mailman/listinfo/r-devel -- http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
