CPU number in hyper threading machine

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Hi,

I have just installed Redhat 9 on a dual-Xeon hyper threading machine. I
run 'top' and see the expected 4 virtual CPUs, they are labeled as CPU0,
CPU1, CPU2 and CPU3.

How do I know which two virtual CPUs belong to a single physical CPU?
I need this info to do cpu binding.


Thanks,
Zhi Min



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