Anyone see a NUMA enabled Quad FX Review?

U

Unoid

[H]ard|Gawd
Joined
Feb 4, 2003
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Every review of the new 4x4 setup has been one in windows XP Sp2. Hence missing 1/2 of the entire memory bandwidth this system supports.

The reviews didn't cripple the other systems in the benchmark by taking off 1/2 of their bandwidth!

Vista will support NUMA, Linux and windows server support NUMA.

I want to see how well the NUMA enabled AMD does vers those kentsfields!
 
AFAIK, NUMA is enabled by default on Windows XP SP2. (Technically you need the /PAE switch but that is enabled by default for AMD64.)

I'm sure there are some articles discussing it out there, Here is a Digit Life piece on it.
 
Most reviews haven't even talked much about NUMA.

http://www.xbitlabs.com/articles/cpu/display/amd-quad-fx_3.html
Xbit talks about it enough.
"As a result, it is important to understand that from the memory performance standpoint, single-processor AMD systems are overall faster than multi-processor ones. The launch of Microsoft Windows Vista should with enhanced scheduler should make things better for the Quad FX platform, because this scheduler will support NUMA technology and will not shift tasks forth and back all the time between the logical processors."

XP sp2 obviously doens't take any advantage of having dual 128bit memory access.

Hence i want to see different software/oses that have real NUMA support to see some good benchies!
 
XP pro supports numa. I have done over 10GB/second memory bandwidth with stock pc3200 speeds with dual opteron 246's.
 
Apparently vista with Numa enabled can do 12,492mb/sec memory bandwidth.
In XP Sp2 it only shows ~6,000mb/sec
apparently there is the problem!

http://hothardware.com/viewarticle.aspx?page=5&articleid=911&cid=1
"With it enabled via the system BIOS, the QuadFX platform manages about 6.6GB/s of memory bandwidth. With node interleaving disabled in the BIOS though, SADNRA reports over 12GB/s of available memory bandwidth under Windows Vista."

Lets see vista benchmarks!
 
Unoid said:
Apparently vista with Numa enabled can do 12,492mb/sec memory bandwidth.
In XP Sp2 it only shows ~6,000mb/sec
apparently there is the problem!

http://hothardware.com/viewarticle.aspx?page=5&articleid=911&cid=1
"With it enabled via the system BIOS, the QuadFX platform manages about 6.6GB/s of memory bandwidth. With node interleaving disabled in the BIOS though, SADNRA reports over 12GB/s of available memory bandwidth under Windows Vista."

Lets see vista benchmarks!
Click to expand...
XP claims to "support" NUMA, but does so only in a very limited way. Further, while any application should see a boost from NUMA because the OS should support it, applications specifically written for NUMA will show the most impressive results.

I'd like to see some Linux benchmarks; it is optimised pretty well for NUMA.
 
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