From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Edwards Date: Fri, 06 May 2005 03:17:31 +0000 Subject: Re: [PATCH] memory less nodes Message-Id: <20050506031731.GA12270@sgi.com> List-Id: References: <20050505152826.GF17548@localhost.localdomain> In-Reply-To: <20050505152826.GF17548@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org On Thu, May 05, 2005 at 11:28:26AM -0400, Bob Picco wrote: | Tony, | | I reworked how nodes with only CPUs are treated. The patch below seems | simpler to me and has eliminated the complicated routine | reassign_cpu_only_nodes. There isn't any longer the requirement | to modify ACPI NUMA information which was in large part the | complexity introduced in reassign_cpu_only_nodes. | | This patch will produce a different number of nodes. For example, | reassign_cpu_only_nodes would reduce two CPUonly nodes and one memory node | configuration to one memory+CPUs node configuration. This patch | doesn't change the number of nodes which means the user will see three. Two | nodes without memory and one node with all the memory. | | While doing this patch, I noticed that early_nr_phys_cpus_node isn't serving | any useful purpose. It is called once in find_pernode_space but the value | isn't used to computer pernode space. FWIW, I tried this patch out on a couple different Altix configurations, and didn't see any problems with it. Greg