HPC over UDP
A few months ago, I posted an entry entitled “HPC in L3“. My only point for that entry was to remove the “HPC in L3? That’s a terrible idea!” knee-jerk reaction that us old-timer HPC types have. I mention this because we
HPC in L3
HPC in L3
As an HPC old-timer, I’m used to thinking of HPC networks as large layer-2 (L2) subnets. All HPC traffic (e.g., MPI traffic) is therefore designed to stay within a single L2 subnet. The next layer up — L3 — is the