My colleague are still using KNL cpus on Stampede2 to run molecular dynamics simulations. They are just “cheap” in terms of job accounting, because there unloved because they are old and cannot catch up with state of art AMD cpus today. Butter they have a shorter queue for it also.

But it is very interesting to see that these CPUs’ optimizations for high throughput by adopting near-die MCDRAM. This strategy is very similar to what we see in Apple’s M1 series chips today.