From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark H Weaver Subject: Re: RFC: building numpy against OpenBLAS. Date: Fri, 05 Jun 2015 09:54:24 -0400 Message-ID: <87r3pqgt0v.fsf@netris.org> References: Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:38302) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z0s4w-0001kN-F6 for guix-devel@gnu.org; Fri, 05 Jun 2015 09:54:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z0s4s-0005Kk-G7 for guix-devel@gnu.org; Fri, 05 Jun 2015 09:54:34 -0400 Received: from world.peace.net ([50.252.239.5]:54640) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z0s4s-0005Ke-Dc for guix-devel@gnu.org; Fri, 05 Jun 2015 09:54:30 -0400 In-Reply-To: (Ricardo Wurmus's message of "Mon, 1 Jun 2015 15:11:59 +0200") 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-bounces+gcggd-guix-devel=m.gmane.org@gnu.org To: Ricardo Wurmus Cc: guix Ricardo Wurmus writes: > Ricardo Wurmus writes: > >> python-numpy currently depends on Atlas, which means that it cannot be >> substituted with a binary built elsewhere. OpenBLAS is an alternative >> to Atlas and the binary can be used on all supported CPUs at runtime. >> This makes it possible for us to make numpy substitutable. >> >> We currently do not have a working OpenBLAS on MIPS, so the attached >> patch selects OpenBLAS as an input only when not on MIPS. Some >> additional configuration happens only unless "atlas" is among the >> inputs. > > If there are no objections I'd like to go ahead and push this patch to > build numpy with OpenBLAS. From the comments I gather that it's not as > controversial a change as I suspected. I think we should go ahead and switch to OpenBLAS on _all_ platforms, not just on MIPS. Were there any objections to that? If not, I'd advocate just doing it. Thanks! Mark