Re: Mixing CPU's

[Tom Vier <tmv@comcast.net>]

On Sat, Jul 23, 2005 at 12:33:01AM -0400, Nathan Dragun wrote:
> Has anyone tried mixing the processor types of multi-cpu systems? What 
> was the outcome?

I have two opteron 244's in my machine. One is stepping 8, the other is 10.
10 supports powernow and is 90nm. Works fine. Matching clockrates is
essential. Even if the bios supported mismatched clocks, the kernel assumes
all cpu's are the same speed.

I don't know if one dual-core and one single core can be used together. I've
been wondering that myself. Some kernel things make be tuned (or even
assume) the number of cpu's is a power of 2, or at least divisible by 2.
Though, the cpu hot plug project should have removed any of those
assumptions.

-- 
Tom Vier <tmv@comcast.net>
DSA Key ID 0x15741ECE