NUMA

NUMA Makes Memory Location Part of Access Cost

NUMA Makes Memory Location Part of Access Cost A large multiprocessor server can expose one physical address space while giving different processors different paths to that memory. A load from a page attached to the processor running a thread can take a shorter route than a load from memory attached to another processor package or NUMA node. This arrangement is called non-uniform memory access, or NUMA. It lets systems scale memory capacity and bandwidth across multiple processor sockets or chiplet groups without forcing every memory request through one centralized controller.