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I would add that seeing somebody "forgetting" NUMA makes it likely there is a lot of other problems. NUMA isn't something you "forget" when you try to test ban
by lmilcin 5y ago
I would add that seeing somebody "forgetting" NUMA makes it likely there is a lot of other problems.
NUMA isn't something you "forget" when you try to test bandwidth limits. It suggest lack of understanding of how that stuff works.
It is as if somebody failed to reach hard drive transfer speeds and they "forgot" they need to be looking at the access pattern.
- bravetraveler 5y agoI think that's fair - this reads heavily like someone that thinks throwing hardware at the problem is all it takes. The marketing materials are guarantees. That kind of thing. They even quoted direct AMD statements that would indicate the memory access pattern isn't uniform. They glossed over it when they saw numbers. I used the term 'forget' in one of my posts, but it's not a true representation - NUMA isn't the kind of thing you forget when you're actually doing HPC. It's the bread and butter. It's like your mechanic forgetting your vehicle has a motor that needs consideration...