I am a little out of my depth here so bear with me. I am trying to configure mpirun and mpiexec to run software called Materials Studio on a 1 node, 2 processor, 12 core cluster. The submission scheme is PBS. I had everything set up properly and where I could submit jobs and they would work well but after a few days I ran into issues where I would get this sort of error:
mpiexec_server.org: cannot connect to local mpd (/tmp/mpd2.console_user); possible causes: 1. no mpd is running on this host 2. an mpd is running but was started without a "console" (-n option)
It seemed like the daemon for mpd was somehow set up but eventually terminated. I had luck adding this to my submission script:
mpdboot -n 1 -f ~/mpd.hosts
nohup mpd &
/data1/opt/MD/Linux-x86_64/IntelMPI/bin/mpiexec -n 6 /data1/opt/MD/2.0/TaskServer/Tools/vasp5.3.3/Linux-x86_64/vasp_parallel
The job now submits and runs properly but times out after 30 minutes or so. I tried adding '-r ssh' without quotes to the end of the mpdboot line but I am not sure if that is the right strategy to take. Also, I am a little confused about why I need to run this daemon in this script and why I need to call a hosts file when I run- I thought that PBS creates that when the job picks up. Could anyone please give me some advice on where to go next? Basically how can I prevent a job that is running from quitting because of something to do with the mpi daemon.
Thanks so much for your help!