Affinity Issues with Core i7

Affinity Issues with Core i7

Portrait de hpc-matt
hpc-matt
mer, 10/03/2010 - 13:29

Greets everyone,

I am writing some C Code using MKL to run on a dual socket Core i7 Alienware machine. I have installed Ubuntu 9.04, and when I go to change the affinity, (using KMP_AFFINITY), it only sees one package, 4 cores, 2 threads per core.

How can I change the affinity to reflect 2 packages, 4 cores each, 1 thread per core? I know that I can shut off hyper threading in the bios, and am wiling ot do so, but how can I get the multiple packages to show up?

Thanks in advance!

hpc-matt

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