From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yk0-x232.google.com (mail-yk0-x232.google.com [IPv6:2607:f8b0:4002:c07::232]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id B419E1A06C7 for ; Thu, 16 Jul 2015 08:48:02 +1000 (AEST) Received: by ykdu72 with SMTP id u72so49727366ykd.2 for ; Wed, 15 Jul 2015 15:48:00 -0700 (PDT) Sender: Tejun Heo Date: Wed, 15 Jul 2015 18:47:58 -0400 From: Tejun Heo To: Nishanth Aravamudan Cc: Michael Ellerman , David Rientjes , Benjamin Herrenschmidt , Paul Mackerras , Anton Blanchard , Peter Zijlstra , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH 1/2] powerpc/numa: fix cpu_to_node() usage during boot Message-ID: <20150715224758.GS15934@mtj.duckdns.org> References: <20150702230202.GA2807@linux.vnet.ibm.com> <20150715203516.GI15934@mtj.duckdns.org> <20150715224351.GH38815@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20150715224351.GH38815@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hello, On Wed, Jul 15, 2015 at 03:43:51PM -0700, Nishanth Aravamudan wrote: > Ok, thank you for clarifying! From a correctness perspective, even if > the numbers don't match NUMA nodes, should we expect the grouping to be > split along NUMA topology? Yeap, the groups get formed according to the node distances. Nodes which are not at LOCAL_DISTANCE are always put in different groups. Thanks. -- tejun