My cluster is working okay. I've tested submitting small jobs via SGE, which seems to work fine. I submitted a few small HPL jobs via SGE, which worked fine. Large HPL jobs still end up with a zombie process using SGE. (Will troubleshoot that later...) Before I open the cluster for use I want to set it up so all jobs are submitted via SGE/qsub. I can currently submit mpirun directly, so I can clearly bypass SGE. Has anyone done this yet? (Not to say that I'm lazy, but of course I am lazy...) Thanks, Bill -- Bill Barnard <bill at barnard-engineering.com>