Re: How many pentium-3 processors does SMP support?

Christoph Hellwig (hch@infradead.org)
Tue, 10 Jul 2001 17:57:08 +0200

On Wed, Jul 11, 2001 at 03:50:38AM +1200, Chris Wedgwood wrote:
> On Tue, Jul 10, 2001 at 08:26:09AM -0700, Randy.Dunlap wrote:
>
> I have heard of some IBM/Sequent patches that modify the
> logical vs. physical APIC addressing scheme to make 16-way
> systems work.
>
> The Unisys machine is actually four quad-CPU machines with shared
> memory, dynamically configurable and other neat stuff.

If it is the Unisys design I mean it is done rather different.
The design I saw has two central crossbars and attached either CPU
modules with a GTL+ bus and two CPUs after a L3 cache or a IO
Module with a few (IIRC 3) PCI busses.

-- 
Of course it doesn't work. We've performed a software upgrade.
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