[torqueusers] Help! In Mac OS X All Jobs Are Being Sent to One Node

Fabrizio Salvatore p.salvatore at rhul.ac.uk
Fri Mar 11 09:13:03 MST 2005

Hi Steven,

Ous cluster is a Linux one and not a Mac OS one, but what you say suggests
me that 
you do not have the option set to distribute the jobs evenly. in qmgr:

> qmgr
Qmgr: p s

do you see:
set server resources_default.neednodes = 1
set server resources_default.nodect = 1

If not, set these parameters and try again.

Hope this helps,


-----Original Message-----
From: torqueusers-bounces at supercluster.org
[mailto:torqueusers-bounces at supercluster.org] On Behalf Of Steven Saunders
Sent: 11 March 2005 08:39
To: torqueusers at supercluster.org
Subject: [torqueusers] Help! In Mac OS X All Jobs Are Being Sent to One Node

Hi All,

I have a small problem with torque that I hope someone out there can help me

I have just set up torque on a small cluster of Mac OS X systems. I have one
system which runs pbs_server and pbs_sched, and a couple of separate systems
running pbs_mom. I basically followed the torque quick start guide and I've
gotten to the point where I can use qsub to submit a job, and it will run on
the first execution node, and the results are successfully delivered back to
the system where the job was submitted. 

My problem is that when I submit several jobs using qsub, they are all
launched immediately on the first execution node (even if I submit 50 jobs.)
The other execution nodes don't receive any of the jobs, and all of the jobs
are launched simultaneously on the first execution node.

Each execution node has 2 cpus, so what I'd like to happen is that jobs 1
and 2 go to node 1, jobs 3 and 4 go to node 2 etc. 

Reading the OpenPBS admin guide, I noticed there are ideal_load and max_load
settings for the MOM config file. Should I be using these, or is the problem
somewhere else? At the moment my MOM config files contain only the lines
recommended in the quick-start guide:

        $clienthost     <my server's IP>
        $logevent       255
        $restricted     <my server's IP>

Thanks in advance for any help anyone can provide.

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