[torqueusers] node memory limiting

Jerry Smith jdsmit at sandia.gov
Thu Oct 29 10:32:11 MDT 2009


Put the ulimit command in your init script for the mom, and the mom will 
inherit those limits.


Tony Schreiner wrote:
> Torque 2.1.10, cluster consists of nodes with 64 GB or RAM, running  
> Fedora 10.
> There is a job that a user is running recently, that dynamically  
> allocates increasing memory over time until all the memory on the node  
> is taken. I haven't talked to the developer, but I don't think it's a  
> bug (at least inadvertently).  But anyway, at that point the node  
> becomes totally unresponsive to Torque or to ssh.
> I thought I would set  the max data size in /etc/security/limits.conf  
> to 64000000 kb or just below the physical size.
> This is effective for ssh logins, but torque connections don't seem to  
> honor it. If I do an interactive job on the node and run ulimit -d it  
> shows "unlimited". I've rebooted for good measure.
> Do I have other options here?
> Thanks
> Tony Schreiner
> Boston College
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