[torqueusers] Getting DISPLAY env variable from a job

Prakash Velayutham prakash.velayutham at cchmc.org
Tue Mar 2 09:42:59 MST 2010


Hi Garrick,

Exactly what I wanted. Thanks a ton.

Prakash

On Mar 2, 2010, at 11:28 AM, Garrick Staples wrote:

> On Tue, Mar 02, 2010 at 11:26:02AM -0500, Prakash Velayutham alleged:
>> Hi,
>>
>> I am running Torque 2.3.6. Is there a way to get a job's DISPLAY env.
>> variable (in case they do qsub -I -X, that is) in either prolog or
>> somewhere in the MOM node? I am getting ready to write some scripts
>> that would warn a user about their interactive job (graphical or  
>> text-
>> based) reaching the time limit.
>>
>> In a text-based interactive job, I think I will able to do a "wall"  
>> to
>> the user's tty, but not sure how to display a pop-up window in a
>> graphical application in the correct display.
>>
>> Thanks for any pointers.
>
> Linux?
>
> cat /proc/$pid/environ | xargs -0 -n 1 echo | grep DISPLAY
>
> -- 
> Garrick Staples, GNU/Linux HPCC SysAdmin
> University of Southern California
>
> Life is Good!


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