From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nick Piggin Date: Wed, 10 Nov 2004 04:52:53 +0000 Subject: Re: removing mm->rss and mm->anon_rss from kernel? Message-Id: <41919EA5.7030200@yahoo.com.au> List-Id: References: <200411081547.iA8FlH90124208@ben.americas.sgi.com> In-Reply-To: <200411081547.iA8FlH90124208@ben.americas.sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Russ Anderson Cc: Matthew Wilcox , "Martin J. Bligh" , Christoph Lameter , Benjamin Herrenschmidt , Hugh Dickins , linux-mm@kvack.org, linux-ia64@vger.kernel.org Russ Anderson wrote: > Matthew Wilcox wrote: > >>On Sun, Nov 07, 2004 at 08:11:24AM -0800, Martin J. Bligh wrote: >> >>>Ummm 10K cpus? I hope that's a typo for processes, or this discussion is >>>getting rather silly .... >> >>NASA bought a 10k CPU system, but that's a cluster. I think the largest >>single system within that cluster is 256 CPUs. > > > Each "node" is a single linux kernel with 512 processors.. > There are 20 nodes in the cluster. 20 x 512p = 10,240 processors. > Sorry for wandering off topic here... did I imagine it or did I read that you'd tried to get 2048 CPUs going in a single system at NASA? I guess the lack of triumphant press release means it didn't go well, or that I was imagining things. Also, are you using 2.6 kernels on these 512 CPU systems? or are your 2.4 kernels still holding together at that many CPUs?