3 ms·

They have been here for a while, just for a very specific market. Threadripper and EPYC exist now though. With 32 and 64 logical cores respectively.

• skrebbel 9y ago
  Sure, there's been high end niche products for anything forever. You could buy a 64 core computer in 1990 (they'd call it a supercomputer, but same thing). The people telling us we had to go change our code to use parallel processing fast predicted a significantly faster increase in amount-of-cores on commodity hardware. Instead, CPUs stopped getting faster and hardly gained more parallellism.
  • pdpi 9y ago
    You could buy a 64 processor machine in 1990, but it wouldn’t have been a 64 core machine in the sense we’re talking about — a single socket system. This isn’t some trivial distinction either, as the whole memory architecture is very different indeed for the two scenarios.
    • makomk 9y ago
      Even in single-socket configurations, Threadripper and EPYC are still both NUMA architectures - the cores are split across two or four dies, each of which has its own memory controller and memory attached to it, with requests from a core to memory on another die going via an interconnect.