From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from esa2.mentor.iphmx.com (esa2.mentor.iphmx.com [68.232.141.98]) by sourceware.org (Postfix) with ESMTPS id 9545C385C411 for ; Mon, 9 Aug 2021 14:27:29 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 9545C385C411 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=codesourcery.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=mentor.com IronPort-SDR: ezArV2V427yM6Az0d8ggGJbVRKJo5OK1gOgdvIp/pchmLnt7VR3T8glOMxVPvG/PRNp/evmPuy QF9S/Z/8qajAPCUUN/2XcVT0yi4FP7f6e4JnxPczTQIky9HT5wcMDJMnjZaV3KTULCpzc5CVnz 2BxSOVIZ6YJuxoq/60dU0yxzCbFXGU34TD1nvU+Sec80MNmdARVTKVMFZs+m08jd67shpQwI4j W8IdDAYDSSenJE5b+8F4dCulHwKzMcPkYBcY1YyolpxKOuhWnKljoAcBOyGBXUsmqditoBY7qI Sm2y1fK31HmdH5deRuRgO5tO X-IronPort-AV: E=Sophos;i="5.84,307,1620720000"; d="scan'208";a="64438723" Received: from orw-gwy-01-in.mentorg.com ([192.94.38.165]) by esa2.mentor.iphmx.com with ESMTP; 09 Aug 2021 06:27:28 -0800 IronPort-SDR: natLiLgTM1BhbzSUsN4S44ln8QXndb+CBjy7BT1svuz7TWSM+gWkBpbmc7t3W0sH/CjcDpjGJ9 11pSTqgO27thMDFP3WqpoqSsvRDLUDvTYTc9seordNWhecK9HBDlmiXH286dO/9rkuU1BgbNH8 UNN6S5wJJzU5a29Jbmo3HBECR2Ja32wbfUssjwtEqbdNITsHbENRDhW1ZUjPuw7MrD11FaCR6X PlNCo5bDzKV3Mg1whNrq+eeozRjQIp1XZwqYROVCmKluniutls/UHbQMWjVTugnYzyqs4yeENA Cmc= From: Thomas Schwinge To: Tobias Burnus , Julian Brown CC: , Gerald Pfeifer , "Andrew Stubbs" Subject: Re: [wwwdocs] gcc-12/changes.html (GCN): >1 workers per gang In-Reply-To: <531ee7a8-0446-8f7b-7504-928426a257c5@codesourcery.com> References: <531ee7a8-0446-8f7b-7504-928426a257c5@codesourcery.com> User-Agent: Notmuch/0.29.3+94~g74c3f1b (https://notmuchmail.org) Emacs/27.1 (x86_64-pc-linux-gnu) Date: Mon, 9 Aug 2021 16:27:17 +0200 Message-ID: <87o8a6pube.fsf@euler.schwinge.homeip.net> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Originating-IP: [137.202.0.90] X-ClientProxiedBy: svr-ies-mbx-02.mgc.mentorg.com (139.181.222.2) To svr-ies-mbx-01.mgc.mentorg.com (139.181.222.1) X-Spam-Status: No, score=-6.2 required=5.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, KAM_DMARC_STATUS, SPF_HELO_PASS, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Aug 2021 14:27:31 -0000 Hi! On 2021-08-09T15:55:07+0200, Tobias Burnus wrote: > Now that the GCN/OpenACC patches for this have been committed today, > I think it makes sense to add it to the documentation. Thanks for thinking of this. > (I was told that some follow-up items are still pending, but as > the feature does work ...) ACK. > Cf. also Andrew's talk of last year, > https://linuxplumbersconf.org/event/7/contributions/749/attachments/560/9= 88/AMD_GCN_Update_-_LPC_2020.pdf > which I utilized when writing the attached wwwdocs patch. > > Comments and/or suggestions? > gcc-12/changes.html (GCN): >1 workers per gang ACK for that aspect specifically, but: > --- a/htdocs/gcc-12/changes.html > +++ b/htdocs/gcc-12/changes.html > +
  • When used as OpenACC device: the limitation of 1 worker per gang, = 2 gangs > + per CU has been lifted; now up to 16 workers per gang and 40 gangs= per CU > + are supported. (Except that the hardware limit of 40 workers total= may > + not be exceeded.)
    • I haven't changed anything related to a "limitation of [...] 2 gangs per CU has been lifted". Maybe that has already been done earlier, maybe that still has to be done? I don't know -- Julian? Gr=C3=BC=C3=9Fe Thomas ----------------- Siemens Electronic Design Automation GmbH; Anschrift: Arnulfstra=C3=9Fe 201= , 80634 M=C3=BCnchen; Gesellschaft mit beschr=C3=A4nkter Haftung; Gesch=C3= =A4ftsf=C3=BChrer: Thomas Heurung, Frank Th=C3=BCrauf; Sitz der Gesellschaf= t: M=C3=BCnchen; Registergericht M=C3=BCnchen, HRB 106955