Comment by mlyle

> I don't know if the libraries support that. But I bet Intel's library (TBB) and their programmers are working on keeping their abstractions clean and efficient.

Intel can declare in ACPI a set of nodes, the distances between nodes, and then Linux/libnuma/etc pick it up.

So, e.g. in AMD's SLIT tables, the local node is 10; within the same partition are 11; within the same socket are 12; distant sockets are >=20.

There's fancier, more detailed tables (e.g. HMAT) and some code out there that uses them, but it's kind of beyond the scope of libnuma.