From owner-freebsd-questions@FreeBSD.ORG Tue Sep 17 21:17:38 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id B54965C4 for ; Tue, 17 Sep 2013 21:17:38 +0000 (UTC) (envelope-from iamatt@gmail.com) Received: from mail-wi0-x22d.google.com (mail-wi0-x22d.google.com [IPv6:2a00:1450:400c:c05::22d]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 41585244A for ; Tue, 17 Sep 2013 21:17:38 +0000 (UTC) Received: by mail-wi0-f173.google.com with SMTP id hq15so5503954wib.12 for ; Tue, 17 Sep 2013 14:17:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=FqqOEOGSb9woiti1pFxRBVh00LRtFe70MCPJ4AElA5M=; b=DDDrR3rx00N7imFR48eeiQx3U6b1eeNvibP0A1BgGaVPpUTG2VmIUHlCifE1VyCXLb UexKweS92ONrKNwSIniT4JVOG1FMLupFJE4btAab7QKQ5+d9QqVi7v2eYSz+Bgn/SJnD dvkFlVmCRTt6wmbRMunABx2ToW4zRSKj5SUl4zH0EZgkka6mLJYxaZaMv3Ynm+x9whLm /r5StC/BD8HWKjYtyvxcYOMvyu8qFvnkoQVRw2Nv3UEuIbXGQ/qxSPkB84D/rIZ1g2+8 WsiIpjBgxFVYwgwbfR0gAmkYgBzzAZQTc5SBhpBhPmbQ2IpLN3aeEG0/JfmI04tKHh3p nwSQ== MIME-Version: 1.0 X-Received: by 10.194.250.6 with SMTP id yy6mr28949640wjc.13.1379452656751; Tue, 17 Sep 2013 14:17:36 -0700 (PDT) Received: by 10.216.63.83 with HTTP; Tue, 17 Sep 2013 14:17:36 -0700 (PDT) Received: by 10.216.63.83 with HTTP; Tue, 17 Sep 2013 14:17:36 -0700 (PDT) In-Reply-To: References: <52388C9B.6030205@foxbatcapital.com> Date: Tue, 17 Sep 2013 16:17:36 -0500 Message-ID: Subject: Re: this 48-core box... From: iamatt To: Dennis Glatting Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: Michael Chen , FreeBSD Mailing List X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Sep 2013 21:17:38 -0000 We discovered some performance issues with the the SM boards and how they are layed out. Granted these were being used with HPC clusters in a fortran development environment used in O&G industry. You probably would not even notice these running your typical web servers on them. The ipmi is pretty annoying and even worse if you get their 10 blade chassis systems. Another thing they lack is the error logging abilities and tools that you get with a fully integrated system from say, ibm, sgi. Or other utilities to change bios settings on the fly .. like IBM Advanced Settings Utility. All of these may not matter as much I suppose with a small server environment. You pay what you get for. On Tue, 17 Sep 2013, iamatt wrote: Hi. Not sure if you can use all cores. It has been and still is my > experience that SM is crap. We have several SM gpu and SM/Calxeda Arm > clusters and they really lack in may ways from ipmi to chassis management > to the corners they cut with the processor to memory mappings. > > Just to clarify: My use is simply as servers and workstations. Generally I don't use IPMI on these systems. I have had trouble with the PCIe slots. Specifically, on the dual core boards some slots are serviced by one set of hardware and other slots by other sets of hardware. Consequently, if you don't have all cores populated then corresponding PCIe slots will not work. Can't say about the four core system, though. I would consider looking at SGI UV, ultraviolet system for a fat node type > system but they are not cheap. We have plenty of those and they can build > it the way you want. Lead time is a couple of months due to build to > order. Support from SM sucks too. :) > On Sep 17, 2013 12:17 PM, "Michael Chen" > wrote: > > I'm considering bidding on this 48-core box: >> >> http://www.ebay.com/itm/****Supermicro-A-Server-1042G-TF-**** >> 1U-H8QG6-4-CPUS-48-cores-2-****2Ghz-128GB-RAM-/151119828428?**** >> pt=COMP_EN_Servers&hash=****item232f7195cc> ebay.com/itm/Supermicro-A-**Server-1042G-TF-1U-H8QG6-4-** >> CPUS-48-cores-2-2Ghz-128GB-**RAM-/151119828428?pt=COMP_EN_** >> Servers&hash=item232f7195cc >> > >> >> Does anyone have experience with it and can I use all the cores? >> >> Thanks! >> ______________________________****_________________ >> freebsd-questions@freebsd.org mailing list >> http://lists.freebsd.org/****mailman/listinfo/freebsd-****questions >> >> > >> To unsubscribe, send any mail to "freebsd-questions-** >> unsubscribe@freebsd.org >> >" >> >> ______________________________**_________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/**mailman/listinfo/freebsd-**questions > To unsubscribe, send any mail to "freebsd-questions-** > unsubscribe@freebsd.org " > >