On Thu, 2005-07-14 at 20:48 +0200, Andi Kleen wrote:

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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?

No. Each processor has its own memory controller. A processor may have 1 or more cores. (A processor is a physical package. A core is a complete logic execution unit). All cores in a processor have equivalent access to the processor's memory controller. -Mark Langsdorf AMD, Inc.