From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pjotr Prins Subject: OpenBLAS and performance Date: Tue, 19 Dec 2017 11:49:56 +0100 Message-ID: <20171219104956.GB806@thebird.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:41967) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eRFVu-0002ou-TZ for guix-devel@gnu.org; Tue, 19 Dec 2017 05:52:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eRFVr-00029I-2e for guix-devel@gnu.org; Tue, 19 Dec 2017 05:52:46 -0500 Received: from mail.thebird.nl ([95.154.246.10]:45217) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eRFVq-00028a-Q9 for guix-devel@gnu.org; Tue, 19 Dec 2017 05:52:42 -0500 Content-Disposition: inline List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: Federico Beffa Cc: Guix-devel The last weeks I have been toying with OpenBlas and tweaking it boosts performance magnificently over the standard install we do now. A configuration for Haswell looks like: https://gitlab.com/genenetwork/guix-bioinformatics/blob/master/gn/packages/gemma.scm#L64 It will benefit python-numpy and R users greatly to use multi-threading (particularly). How do we make a flavour that supports this. Or are channels going to solve this for us? Btw the latest stable release worked fine too: https://gitlab.com/genenetwork/guix-bioinformatics/commit/474524a5a0d57744c1727442b33d8f2889eb0397 Pj.