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SubjectRe: [PATCH] - Allow NODES_SHIFT to be a config option on x86_64
On Fri, Mar 21, 2008 at 03:26:49PM +0100, Ingo Molnar wrote:
>
> * Jack Steiner <steiner@sgi.com> wrote:
>
> > Allow the maximum number of nodes in an x86_64 system to be
> > configurable. This patch does NOT change the default value but allows
> > the value to be a config option.
>
> i've applied your patch - but i'm wondering, shouldnt we auto-scale the
> default according to max number of CPUs? (with some sensible scaling
> that happens to meet your expected large-system needs as well ;-) All
> the current manual configuration of nodes shift is ugly.

I would prefer to auto-scale, too, but our hardware platform allows
too many options to make it easy. The current system configs will support
from 0 to 32 cpus per node (some nodes have memory only).

However, I'm open to suggestions if you have any ideas....


--- jack


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