From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.3 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B23F9C2BA19 for ; Tue, 14 Apr 2020 13:14:43 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 87D7B2063A for ; Tue, 14 Apr 2020 13:14:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="isQPS0YR" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 87D7B2063A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=amd-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 08C536E4DE; Tue, 14 Apr 2020 13:14:41 +0000 (UTC) Received: from mail-wr1-x442.google.com (mail-wr1-x442.google.com [IPv6:2a00:1450:4864:20::442]) by gabe.freedesktop.org (Postfix) with ESMTPS id C37C76E4D2; Tue, 14 Apr 2020 13:14:39 +0000 (UTC) Received: by mail-wr1-x442.google.com with SMTP id d27so5059629wra.1; Tue, 14 Apr 2020 06:14:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Ll4eqAKYtjTVgiWa+EM/tj8opR8soYnFbaqkSa8MX0w=; b=isQPS0YRieB7ch7fx9vRbFH6vVJ4/QFAfFtOxs7dl7WJwGeHCeTQS+qrGd9s7WRif5 JqpVOBi2Cqe2E6ez62qE4/a7Sji/QthpWmK44OsPX7WYNXpcdiI2oOhmjb+4yRlXO5QK l23pyo3SDKhsQmdSNfmOZFuVUtenQdOdPK50FCKUU5z8N82ZFzdmWe+gVIcmuCw0h3Zn ArG3qdgBx2OhGRZcmg9uBy/DC+NSzJXr4coBZOznjpbpcYXf5kvVjA5L6qfe93w03on6 O8wsBlWmpEmcZMWVG7vUxga9csu/DS5M8ieHTQ+WFXB78toa2EvqDVzMqTE5flLxLus+ dqaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Ll4eqAKYtjTVgiWa+EM/tj8opR8soYnFbaqkSa8MX0w=; b=mCoYkk2xGpQnRBbM3g7SxKqAErx8G6VNj+lV5hBJmsHfuv04LxD3RCR4GqUS1Pihop AWHJm1wJv8GjnWRYxgIiAn5vRFNzNSP/abbVbqUJd9eb63O22RgDE+i1DMu2LvWvnkrQ vB/ywKVqZ1/JRZHihKG82wFdILJhR2et//GZ5fWbY4zxBu5QLdRF16yHeni6DLwBGGDV IBibIm6Q7XAgLUVQZAmaHKDr5EBEcFAvz1b2ENuN39/gdDjTYckqxU9ntOUHxyMXViWG noli2i3sg4Kn4j9cpRzzibNHqCesV5TMVno+3jTLbq5qkdFH+hgppsSuQcctrVmxymVI EevQ== X-Gm-Message-State: AGi0PubaLCP0D8sqY2aBqauj9nNbRYds3gTbMBIaF8oZEXrju4b9/971 CFPmX4/zfXr+uklLk0n4zOtJPd7QfMjvMjTyQC0= X-Google-Smtp-Source: APiQypKDWYE7ro/xZ4gZ+BUY0l4LRMksuXmT+3J4sb0z0oWxfdy2Qap6WOfuUwiVUau7i+EWwS9jFojCnbujMqGjuj0= X-Received: by 2002:a5d:65cb:: with SMTP id e11mr23399657wrw.402.1586870078292; Tue, 14 Apr 2020 06:14:38 -0700 (PDT) MIME-Version: 1.0 References: <20200226190152.16131-1-Kenny.Ho@amd.com> <20200324184633.GH162390@mtj.duckdns.org> <20200413191136.GI60335@mtj.duckdns.org> <20200414122015.GR3456981@phenom.ffwll.local> In-Reply-To: From: Kenny Ho Date: Tue, 14 Apr 2020 09:14:27 -0400 Message-ID: Subject: Re: [PATCH v2 00/11] new cgroup controller for gpu/drm subsystem To: Daniel Vetter X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kenny Ho , "Kuehling, Felix" , jsparks@cray.com, dri-devel , lkaplan@cray.com, Alex Deucher , amd-gfx list , "Greathouse, Joseph" , Tejun Heo , cgroups@vger.kernel.org, =?UTF-8?Q?Christian_K=C3=B6nig?= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" Ok. I was hoping you can clarify the contradiction between the existance of the spec below and your "not something any other gpu can reasonably support" statement. I mean, OneAPI is Intel's spec and doesn't that at least make SubDevice support "reasonable" for one more vendor? Partisanship aside, as a drm co-maintainer, do you really not see the need for non-work-conserving way of distributing GPU as a resource? You recognized the latencies involved (although that's really just part of the story... time sharing is never going to be good enough even if your switching cost is zero.) As a drm co-maintainer, are you suggesting GPU has no place in the HPC use case? Regards, Kenny On Tue, Apr 14, 2020 at 8:52 AM Daniel Vetter wrote: > > On Tue, Apr 14, 2020 at 2:47 PM Kenny Ho wrote: > > On Tue, Apr 14, 2020 at 8:20 AM Daniel Vetter wrote: > > > My understanding from talking with a few other folks is that > > > the cpumask-style CU-weight thing is not something any other gpu can > > > reasonably support (and we have about 6+ of those in-tree) > > > > How does Intel plan to support the SubDevice API as described in your > > own spec here: > > https://spec.oneapi.com/versions/0.7/oneL0/core/INTRO.html#subdevice-support > > I can't talk about whether future products might or might not support > stuff and in what form exactly they might support stuff or not support > stuff. Or why exactly that's even in the spec there or not. > > Geez > -Daniel > -- > Daniel Vetter > Software Engineer, Intel Corporation > +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx