[Beowulf] PBS/Maui delay starting of several jobs for certain user

Nico Mittenzwey Nico.Mittenzwey at informatik.tu-chemnitz.de
Fri Jul 2 07:11:03 EDT 2010


Hi all,
we have a user with jobs that create heavy I/O load on our network file 
system every x minutes. If I block her jobs and start them manually with 
a delay of about 10 minutes, she can run about 60 jobs simultaneously.
However, if I don't do that and the jobs are started at more or less the 
same time (for example after a big job from another user finished), she 
can run about 30 jobs without stressing our file system so hard that 
"ls" takes 30 seconds to display any home directory.

So I would like to tell PBS/Maui to wait x seconds before starting 
another job of that particular user. Do you know of any means to 
accomplish that (even if I have to change the source)?

Since I may need this for some other users too I would prefer using 
PBS/Maui directly rather then blocking all jobs of this users and 
starting the jobs using a script.

Cheers,
Nico

_______________________________________________
Beowulf mailing list, Beowulf at beowulf.org sponsored by Penguin Computing
To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf

-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.



More information about the Beowulf mailing list