The CCXes aren't NUMA, they all have the same access to memory, no system would ... | Hacker News

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		floatboth on June 11, 2019 \| parent \| context \| favorite \| on: AMD Zen 2 Microarchitecture Analysis: Ryzen 3000 a... The CCXes aren't NUMA, they all have the same access to memory, no system would show multiple NUMA domains on a desktop Ryzen. Only Threadripper and EPYC are NUMA.

TazeTSchnitzel on June 11, 2019 | [–]

Zen 2 drops the NUMA because of the single I/O die with memory controller right?

floatboth on June 11, 2019 | | [–]

I can't find confirmation, but that would make sense, single-socket EPYC and TR with Zen2 should be UMA

microcolonel on June 12, 2019 | [–]

> Only Threadripper and EPYC are NUMA.

Yeah, I meant this. I don't use Ryzen so I think of Zen as being Threadripper and EPYC.

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