what batch queue are you using? are the nodes showing up as available to your queue? for example, if you're using torque, what is the output of the command `pbsnodes -a`? --Joe
________________________________ From: [EMAIL PROTECTED] on behalf of Michael Homa Sent: Wed 9/17/2008 12:12 PM To: [email protected] Subject: [Mauiusers] Questions regarding "tasks" and the cfg file. Hello: I'm doing the initial configuration for maui (maui-3.2.6p20) on a university-based cluster. I've configured a very basic configuration file which I've hacked to death trying to solve this issue. Two key lines: NODECFG[argo17-1] MAXJOB=10 CLASSCFG[dedicated] MAXPROC=12 In order to test, I wrote a simple hello_world program in C. When I submit the program for execution, I see that the number of tasks is 6: Job ID Username Queue Jobname SessID NDS TSK Memory Time S Time 317 mhoma dedicate hello_worl -- 1 6 --- 00:30 Q -- and the job remains queued because: "job cannot run in partition DEFAULT (idle procs do not meet requirements : 0 of 6 procs found)" The dedicated queue has three dual CPU, dual cores and was established in torque: argo17-1 np=4 Linux2.i86pc dualcore amd smp dedicated argo18-2 np=4 Linux2.i86pc dualcore amd smp dedicated argo18-3 np=4 Linux2.i86pc dualcore amd smp dedicated According to the admin manual, "by default, a task maps directly to a single processor within a job." A few questions: 1) What configuration variable controls this setting? In other words, how does one change maui so that a single processor can handle multiple tasks from the same job. By its very nature, a hello_world stub should not require six processors. Of course, my job will queue; it's asking for six processors and there are only four available. But, I'm surprised that the message says "0 of 6 found". 2) I'm unclear as to how the "task" number is derived? I noticed that my hello_world has a PE of 6. Is that a coincidence or does the resulting PE become the number of tasks? Why six processors for hello_world? I'm new to Maui so if I'm asking dumb questions, chalk it up to being an idiot. Michael Homa Operating Systems Support and Database Group Academic Computing and Communication Center University of Illinois at Chicago email: [EMAIL PROTECTED] _______________________________________________ mauiusers mailing list [email protected] http://www.supercluster.org/mailman/listinfo/mauiusers
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