[Beowulf] Random PBS Question

John Leidel john.leidel at gmail.com
Tue Nov 27 19:39:02 EST 2007


We're running PBSPro.  

Your note on running a job a monitoring the PBS database is exactly what
we're currently working on.  I wasn't sure if there was an easier
[undocumented] way of doing so as in Torque.  

Thanks for the help

cheers
john 

On Tue, 2007-11-27 at 19:12 -0500, Glen Beane wrote:
> 
> 
> 
> --- Original Message ---
> > For those reading the list that run PBS, we have an interesting
> > situation... After a fairly substantial crash, we've had to
> > rebuild our
> > PBS configuration.  We've also been asked to reset to the PBS
> > job id
> > counter to a position near where it left off [for reasons of
> > accounting].  Has anyone ever done this??
> > 
> > cheers
> > john
> 
> 
> PBS Pro,  Open PBS, or TORQUE?  
> 
> One easy way, but a bit of a hack, is to write a script that submits a bunch of dummy jobs and qdel's them.
> 
> With Open PBS and older versions of torque you can edit the code that creates the server database to initialize the job counter to whatever number you want,  then recompile the server, and start it with the -t create flag.
> 
> Newer versions of TORQUE include a qmgr hidden server attribute (documented, but not printed if you run "print server") called next_job_number.  qmgr -c "s s next_job_number=N"
> 
> With OpenPBS or TORQUE you can look at the source and figure out the format of the binary server database file and change the job id counter with a hex editor.  You might be able to reverse engineer the location of this in the server database for PBSPro by submitting a job and then looking to see what got incremented in the file - it is probably in the native byte order of your system.
> 
> Glen L. Beane
> The Jackson Laboratory
> Software Engineer III
> Phone 207-288-6153
> 
> 

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