[Beowulf] numactl & SuSE11.1

Mark Hahn hahn at mcmaster.ca
Sat Aug 8 18:42:45 EDT 2009


> I've OpenSuSE 11.1 (kernel 2.6.22.5-31) installed on dual Nehalem (Xeon 
> E5520) server. 
> numactl -- show
> says
> libnuma: Warning : /sys not mounted or invalid. Assuming one node: No such 
> file or directory
>
> /sys/devices/system/node contains 2 directories, but they are node0 and node2 
> (instead node1 which I expected).

sounds like the kernel isn't grokking the cpu; given that 2.6.22.5
dates from 08/22/2007, that's not all that surprising...

> How is possible to correct this situation ?

I'm guessing a new kernel would do it - since all numactl's can grok
amd's opterons, they ought to deal with intel's ;)
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