I can talk about namespaces in HPC distributed systems, and they don't look anything like Plan 9 to me. They make life harder in various respects, and even dan

I can talk about namespaces in HPC distributed systems, and they don't look anything like Plan 9 to me. They make life harder in various respects, and even dangerous with Linux features that don't take them into account (like at least one of the "zero-copy" add-on modules used by MPI shared memory implementations).