[discuss] Re: [LinuxBIOS] NUMA support for dual core Opteron
mark.langsdorf at amd.com
Thu Jul 14 21:14:23 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?
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.
More information about the coreboot