During the last 20 years the typical x86 box went from single CPU, through multiple CPUs, through multiple CPUs with non-trivial NUMA topology to the current st

During the last 20 years the typical x86 box went from single CPU, through multiple CPUs, through multiple CPUs with non-trivial NUMA topology to the current state where not having non-trivial NUMA topology is meaningful point in marketing of the thing. The primary reason is that large class of somewhat interesting workloads do not cope well with NUMA and then obviously running such workloads on some kind of weakly coupled cluster is completely impossible.