[discuss] Re: [LinuxBIOS] NUMA support for dual core Opteron

Li-Ta Lo ollie at lanl.gov
Thu Jul 14 21:05:02 CEST 2005

On Thu, 2005-07-14 at 20:48 +0200, Andi Kleen wrote:
> > AFIAK, for x86_64 kernel, it will try to read NUMA configuration from
> > HW directory. We don't have to export any ACPI table.
> It doesn't work for dual core or 8 sockets for some reason. Since the SRAT
> code works fine and is in general more future proof we never tracked down 
> why. Patches welcome. 

Does each core has its own memory controller?

> However you'll likely need ACPI for other reasons anyways, e.g. for
> better power saving.
> -Andi
Li-Ta Lo <ollie at lanl.gov>
Los Alamos National Lab

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