Am 31.10.2016 um 05:07 schrieb Richard A. O'Keefe:
But even when communication is disguised as memory accessing, it's still communication, it still *costs* like communication, and if you want high performance, you had better *measure* it as communication.
And you need to control memory coherence, i.e. you need to define what data goes together with what processes. In an ideal world, the compiler would be smart enough to do that for you. I have been reading fantasies that FPLs with their immutable data structures are better suited for this kind of automation; has compiler research progressed enough to make that a realistic option? Without that, you'd code explicit multithreading, which means that communication does not look like memory access at all.