From owner-freebsd-current@freebsd.org Sun Mar 22 10:38:41 2020 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 32DAE27CC2A for ; Sun, 22 Mar 2020 10:38:41 +0000 (UTC) (envelope-from shoesoft@gmx.net) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 48lYrw5c8pz4fDC for ; Sun, 22 Mar 2020 10:38:40 +0000 (UTC) (envelope-from shoesoft@gmx.net) Received: by mailman.nyi.freebsd.org (Postfix) id C029127CC28; Sun, 22 Mar 2020 10:38:40 +0000 (UTC) Delivered-To: current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id BFBD127CC27; Sun, 22 Mar 2020 10:38:40 +0000 (UTC) (envelope-from shoesoft@gmx.net) Received: from mout.gmx.net (mout.gmx.net [212.227.17.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "mout.gmx.net", Issuer "TeleSec ServerPass Class 2 CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 48lYrv47hwz4fD2; Sun, 22 Mar 2020 10:38:39 +0000 (UTC) (envelope-from shoesoft@gmx.net) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1584873512; bh=QOsLiZEr7ni2AQHTuYIuBehImCKwzMH21kWUWn9HP5A=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=aaYyu/5GJsby5TZcvMjXLWk+9Sp1ocYRb/IToG0EkpEIDC/HiP2rGrbpGHkYdkRRM DQXdW/fLZAfmzOpY1Q1xLVj4GJfPQPIlssgpPQXAzLt1Tpxg2Ej7MPRJQ4WgxKc9QI Hml78il4U1nAz1VnxYCCk7AQinSNIL3gFgBqNzn4= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from walrus.pepperland ([81.217.71.61]) by mail.gmx.com (mrgmx104 [212.227.17.168]) with ESMTPSA (Nemesis) id 1Mj8qj-1jjYC52UXl-00fBSr; Sun, 22 Mar 2020 11:38:32 +0100 From: Stefan Ehmann To: Alexander Leidinger Cc: current@freebsd.org, freebsd-stable@freebsd.org Subject: Re: HOWTO donate CPU to the fight against the Corona-virus Date: Sun, 22 Mar 2020 11:38:31 +0100 Message-ID: <1804877.u6MfGjpqfb@walrus.pepperland> In-Reply-To: <20200321120755.Horde.zo0-HJ_AnsKmqqmFSb98-e8@webmail.leidinger.net> References: <20200319085745.Horde.yAf5603LMT07oVm8NR1Abs6@webmail.leidinger.net> <2005523.RhTPgMbj8J@walrus.pepperland> <20200321120755.Horde.zo0-HJ_AnsKmqqmFSb98-e8@webmail.leidinger.net> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; 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RCPT_COUNT_THREE(0.00)[3]; NEURAL_HAM_LONG(-1.00)[-0.997,0]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[gmx.net]; IP_SCORE_FREEMAIL(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; IP_SCORE(0.00)[ip: (-6.65), ipnet: 212.227.0.0/16(-1.12), asn: 8560(2.18), country: DE(-0.02)]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 22 Mar 2020 10:38:41 -0000 On Saturday, March 21, 2020 12:07:55 PM CET Alexander Leidinger wrote: > Quoting Stefan Ehmann (from Sat, 21 Mar 2020 > > 11:38:26 +0100): > > On Thursday, March 19, 2020 8:57:45 AM CET Alexander Leidinger via > > freebsd- > > > > stable wrote: > >> Hi, > >> > >> if someone wants to donate some FreeBSD based CPU resources to the > >> fight against the Corona-virus, here is a quick HOWTO in terms of > >> installing the Folding@Home client on FreeBSD: > >> > >> https://www.leidinger.net/blog/2020/03/19/fighting-the-coronavirus-wi= th-f > >> ree bsd-foldinghome/ > > > > Unfortunately, (using a CPU slot for the same work unit) TPF is 2-3 ti= mes > > slower than on Ubuntu for me. Much of the speed difference seems to > > be related > > to libOpenCL. If remove libOpenCL on Ubuntu, it's still 20-30% faster = than > > on FreeBSD. > > The pure CPU based code should be the same. Someone would have to > trace / reverse engineer what is going on. I'm pretty sure now that libOpenCL is only relevant for GPU slots. I couldn't reproduce that the presence of libOpenCL.so has any effect on C= PU slots. Didn't make much sense anyway, something else must have been going = on. So there's probably no point in getting OpenCL to run on FreeBSD until we = have GPU rendering. The numbers displayed by FAHControl are rather strange: * There is no discernible difference in speed if 1 or all CPU cores are us= ed (but top shows that 600% CPU cycles are burned) - happens on both Ubuntu a= nd Linuxolator * According to the progress bar, Ubuntu completes 1% per minute, but Linuxolator only 0.1% (for the same work unit) Don't know if the numbers displayed are bogus or there is really that much= of a difference. Maybe the issue is only related to a specific WU or to AMD-C= PUs. I've also tried https://fahbench.github.io/ but it's mainly targeted at GP= Us and uses a different Core.