[Moabusers] soft limits on MAXIJOB

[kamil Marcinkowski]

Hello All,

We are running a "large SMP" cluster with short max wall-time
and a few queues (classes) mapped. Each queue mapped
to exclusive hosts. We want to implement anti
queue-stuffing measures.

If we set MAXIJOB 2, no more than 2 jobs per user will acquire
queue-time however only first 2 jobs of an user will be considered
for running. This is a problem since the first two jobs of a user can  
be in
one queue with lot of other jobs and other jobs of the user can be
in a queue that is otherwise empty, leaving an empty machine.

Moab admin manual is unclear wether soft limits on
MAXIJOB are supported.
We tried setting soft MAXIJOB but it did does not see to work,
queue stuffed jobs are still gaining queue-time.

> USERCFG[DEFAULT]  MAXIJOB=2,8

We are running:
Moab Workload Manager version 4.5.0p3
Torque version: 2.1.6

Is this supposed to work?
If not is there an alternative way of achieving the same results?

Thanks,

Kamil

Kamil Marcinkowski                   Westgrid System Administrator
kamil at ualberta.ca                     University of Alberta site
  Tel.780 492-0354                     Research Computing Support
Fax.780 492-1729                     Academic ICT
Edmonton, Alberta, CANADA    University of Alberta


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