[ofa-general] Affinitization of HCAs

[Richard Frank]

What are the implications for registering memory with HCAs on NUMA 
systems ....if any ?

Roland Dreier wrote:
>  > On NUMA systems with multiple HCAs, it is possible that each HCA has
>  > affinity to a different NUMA node. Is the affinity of the HCA exposed
>  > in any manner to user land?
>
> /sys/devices/.../numa_node gives the affinity for every PCI device in
> the system.
>
>  > Also, do IB drivers in OFED 1.3.1 (or latest OFED) take advantage the
>  > HCA affinity?
>
> Not really... of course userspace could select the "closest" HCA but I
> don't think anyone has coded that.
>
>  - R.
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