What is this “unified memory” you speak of? Modern supercomputers are just a bunch of computers with a (very) high speed interconnect. As far as I’m aware, pr

What is this “unified memory” you speak of? Modern supercomputers are just a bunch of computers with a (very) high speed interconnect. As far as I’m aware, pretty much every multi node job on a supercomputer uses MPI to communicate, and there isn’t any sort of “unified memory” system. It has been a few years since I worked on one of the big supercomputers though, so maybe you have better knowledge than me. I’d love more information.