They mention it being composed as a cluster of blades with "Numalink 6 interconnect", so I'd guess "pretty bad" if you're hitting non-local RAM. You'll definit

They mention it being composed as a cluster of blades with "Numalink 6 interconnect", so I'd guess "pretty bad" if you're hitting non-local RAM. You'll definitely be rewriting your programs to deal with the quasi-distributed aspect. There are actually a number of options if you're willing to do that kind of architecture, but I haven't seen anything with >2tb of RAM on a single motherboard. Even those are pretty strongly NUMA between sockets.