Also, instead of "qrun", try using "runjob"; since it is a Maui utility it is aware of scheduling configurations and will give you more meaningful errors if there is an actual problem. If it works without complaint, my ending comment about scheduling slots may be more relevant.
Phil On Mon, Jul 28, 2014 at 8:38 AM, Phil Regier <[email protected]> wrote: > Try "checkjob" on the stalled jobs to see if you can divine the rationale > for the delayed start; "mdiag" (-j for jobs, -n for nodes, and I *think* -q > for queue would be good places to start) can be used to make sure node > availability is as expected. "showq" and "showq -b" can also help identify > blocked jobs; also check in "showq" for the asterisk that marks a currently > scheduling/pending job. "showstart" can also sometimes give clues about > the nature of the delay. In this case I'm guessing that "mdiag -n" will > show warnings about node load being too high, and that Maui is > automatically adjusting the number of free tasks down to avoid overloading > a node (correctly or not). > > Depending on queue, you may also be running into built-in scheduling > limitations; by default Maui can only schedule one job at a time, with all > other job starts being due to backfill, which can be confusing at times. > > Phil > > > On Wed, Mar 26, 2014 at 8:43 AM, van Eikema Hommes, Nicolaas < > [email protected]> wrote: > >> Hello! >> >> On our site, we're currently using Torque 4.2.5 with Maui 3.3.1, the >> latter with the default configuration. This setup works fine, but we've >> noticed that Maui appears to limit the number of jobs per node to 2: when a >> user submits 8 jobs that request ppn=1 to a particular np=8 node, only 2 >> jobs are started by the scheduler. The remaining 6 jobs must be started via >> qrun. >> >> I could not find anything that might be related to this behaviour in the >> documentation (links in maui.cfg are broken btw); the showconfig command >> doesn't list any parameter with a value of 2, so that didn't help either. >> >> Any help/suggestions how to make Maui start more jobs per node are >> greatly appreciated. >> >> Best regards, >> >> Nico van Eikema Hommes >> -- >> Dr. N.J.R. van Eikema Hommes Computer-Chemie-Centrum >> E-Mail: [email protected] Universitaet Erlangen-Nuernberg >> Phone: +49-9131-8520402 Naegelsbachstr. 25 >> FAX: +49-9131-8520404 91052 Erlangen, Germany >> >> >> >> >> >> >> >> _______________________________________________ >> mauiusers mailing list >> [email protected] >> http://www.supercluster.org/mailman/listinfo/mauiusers >> >> >
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