From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= Subject: Re: Using hwloc 2.0.3 in openmpi Date: Sun, 10 Mar 2019 18:32:36 +0100 Message-ID: <87y35m1vpn.fsf@gnu.org> References: <87tvgetm8f.fsf@mdc-berlin.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([209.51.188.92]:32986) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h32JZ-0007uQ-3L for guix-devel@gnu.org; Sun, 10 Mar 2019 13:32:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1h32JX-0007HI-3J for guix-devel@gnu.org; Sun, 10 Mar 2019 13:32:45 -0400 Received: from mail2-relais-roc.national.inria.fr ([192.134.164.83]:5306) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1h32JT-0007FU-Sd for guix-devel@gnu.org; Sun, 10 Mar 2019 13:32:41 -0400 In-Reply-To: <87tvgetm8f.fsf@mdc-berlin.de> (Ricardo Wurmus's message of "Thu, 7 Mar 2019 22:20:48 +0100") 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: Ricardo Wurmus Cc: guix-devel@gnu.org Hi Ricardo, Ricardo Wurmus skribis: > currently, the openmpi package is built with hwloc 1.11.12, which > includes this note: > > ;; Note: For now we keep 1.x as the default because many packages have = yet > ;; to migrate to 2.0. > > OpenMPI does work with hwloc 2.0, though, and I=E2=80=99ve built it succe= ssfully > after replacing =E2=80=9Chwloc=E2=80=9D with =E2=80=9Chwloc-2.0=E2=80=9D. > > What do other HPC users think about making this change? Perhaps this comment no longer holds and we can indeed upgrade. Did you try recompiling all the dependents with this change? ISTR SLURM wouldn=E2=80=99t build with hwloc 2.0. But if it works now, I=E2=80=99d sa= y you can go ahead. Thanks, Ludo=E2=80=99.