Non-Uniform Memory Access (Numa) - HP Integrity MC990 X User Manual

maintain cache coherence. The invalidation method purges all unmodified copies of the block of data, and
the processor that wants to modify the block receives exclusive ownership of the block.

Non-uniform memory access (NUMA)

In DSM systems, memory is physically located at various distances from the processors. As a result,
memory access times (latencies) are different or non-uniform. For example, it takes less time for a
processor blade to reference its locally installed memory than to reference remote memory.
Non-uniform memory access (NUMA) 67