Karl Rupp <r...@iue.tuwien.ac.at> writes: >> I wonder if the single-node latency bugs on AC922 are related to these >> weird performance results. >> >> https://docs.google.com/spreadsheets/d/1amFJIbpvs9oJcUc-WntsFHO_C0LE7xFJeor-oElt0LY/edit#gid=0 >> > > Thanks for these numbers! > Intra-Node > Inter-Node is indeed weird. I haven't observed such an > inversion before.
As far as I know, it's been there since the machines were deployed despite obviously being a bug. I know people at LLNL regard it as a bug, but it has not been their top priority (presumably at least in part because applications have not clearly expressed the impact of latency regressions on their science).
