From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Tue, 24 Feb 2004 21:54:45 +0000 Subject: Re: CPU only nodes (no memory) patch for NUMA/DISCONTIG Message-Id: <16443.51237.413077.809134@napali.hpl.hp.com> List-Id: References: <403A583C.7010808@hp.com> In-Reply-To: <403A583C.7010808@hp.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org >>>>> On Tue, 24 Feb 2004 09:40:49 -0500, Robert Picco said: Robert> Added commentary here. There are additional comments in code which Robert> hopefully elucidates the algorithm. Robert> Also I've addressed the other feedback. The patch looked fine to me. The only changes I made is to squish the remaining trailing whitespace (which was only on otherwise empty lines, in your case) and to change "CPU only" to "CPU-only" (seems easier to parse that way). I cooked up a ChangeLog entry, but in the future, I'd really appreciate it if all patch-submissions would always include the desired ChangeLog. Otherwise, I have to go digging through old mail and that takes time and makes it likely that I'll get something wrong. I attached the ChangeLog entry below. If you want something corrected, let me know soon, while I can still edit it. Thanks, --david ChangeSet@1.1666, 2004-02-24 13:48:30-08:00, Robert.Picco@hp.com [PATCH] ia64: add support for NUMA machines with CPU-only (memory-less) nodes This patch works around a limitation in the current NUMA code, which doesn't support CPU-only (memory-less) nodes. With this patch CPU-only nodes are moved to a node with memory which is at the closest relative distance per the SLIT information. Any node reassignments will result in the compression of the nodes and renumbering the nid values where appropriate.