On Thu, Jan 11, 2018 at 10:38 AM, Keith O'Hara <keith.oh...@nyu.edu> wrote:
[snip] > > Perhaps another point for Juan’s list: whether OpenBLAS is the right choice > to pair with. The library itself hasn’t produced optimized kernels for any of > the Intel *Lake chips yet; might be worth considering its near- and long-term > future (vs something else). > Regarding this point, please see this thread on OpenBLAS-users [1], in specific the third post by Jeff Hammond who says he is an employee of Intel, where he says: "Skylake Xeon processors with AVX-512 are definitely going to require code changes to perform optimally. However, the Core i[357] processors up to and including Kaby Lake do not support AVX-512 and thus can suffice with the existing AVX2 implementation that targets Haswell. See https://ark.intel.com/#@Processors and look for "Instruction Set Extensions" for full details on on specific SKUs." I presume this holds for CoffeeLake as well, as it's pretty much a hexacore SkyLake. Thank you, Avi [1] https://groups.google.com/d/msg/openblas-users/XU6-9h-geVE/mwz2ewKrCQAJ ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
