From owner-freebsd-questions@FreeBSD.ORG Thu Oct 20 14:06:33 2005 Return-Path: X-Original-To: questions@freebsd.org Delivered-To: freebsd-questions@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 09CAF16A41F for ; Thu, 20 Oct 2005 14:06:33 +0000 (GMT) (envelope-from infofarmer@gmail.com) Received: from zproxy.gmail.com (zproxy.gmail.com [64.233.162.204]) by mx1.FreeBSD.org (Postfix) with ESMTP id 323FA43D64 for ; Thu, 20 Oct 2005 14:06:30 +0000 (GMT) (envelope-from infofarmer@gmail.com) Received: by zproxy.gmail.com with SMTP id 8so81478nzo for ; Thu, 20 Oct 2005 07:06:29 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=GAQj59qQD1v5fO4P+SH2Hzt6SnGjlijnxD47ggEJoxtCfS+Unbi6XxUnr5ccfOLCFpu2OaZauQ3XbbrCDjnqxroyF58l8dzFO+fKc51fb6X/M+FViT9BQV0cRyCngdTWav3U9ypBR9Z/oMG5iRYTBKo2k9c/Xglwe1DlKr0kb6k= Received: by 10.36.146.8 with SMTP id t8mr1731460nzd; Thu, 20 Oct 2005 07:06:29 -0700 (PDT) Received: by 10.37.20.34 with HTTP; Thu, 20 Oct 2005 07:06:29 -0700 (PDT) Message-ID: Date: Thu, 20 Oct 2005 18:06:29 +0400 From: "Andrew P." To: Greg 'groggy' Lehey In-Reply-To: <20051020125504.GG1128@eucla.lemis.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <20051020125504.GG1128@eucla.lemis.com> Cc: FreeBSD Questions Subject: Re: Multiple CPUs without SMP X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Oct 2005 14:06:33 -0000 On 10/20/05, Greg 'groggy' Lehey wrote: > On Thursday, 20 October 2005 at 15:15:39 +0400, Andrew P. wrote: > > I'm kinda confused. > > Yes, that's possible. > > > Can I use both processors with a non-SMP kernel? > > No. > > > I don't need SMP, I would settle on manually assigning CPU affinity > > to each processor, but I gather FreeBSD can only handle 2+ CPUs with > > SMP enabled. > > I'm wondering if you have misunderstood the purpose of SMP > (symmetrical multiprocessors). That's the architecture of the > motherboard. If you want to use the second processor, you're > effectively saying that you want to use SMP. An SMP kernel is one > that supports them. > > Possibly you're considering using each processor for different > purposes. That's conceivable, but FreeBSD doesn't support it. > > Greg > -- > When replying to this message, please copy the original recipients. > If you don't, I may ignore the reply or reply to the original recipients. > For more information, see http://www.lemis.com/questions.html > See complete headers for address and phone numbers > Thanks for your answer. NUMA architecture would fit some of our servers so much better. But SMP has its own strengths which we'll try to use.