On Tue, 2 Oct 2007, KAMEZAWA Hiroyuki wrote:

quoted text
> For fujitsu, problem is called "empty" node.

Future SGI platforms (actually also current one can have but nothing like 
that is deployed to my knowledge) have nodes with only cpus. Current SGI 
platforms have nodes with just I/O that we so far cannot manage in the 
core. So the arch code maps them to the nearest memory node.
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