[Brahms-dev-l] condor job summiisions

From: Flemming Videbaek <videbaek@bnl.gov>
Date: Mon Jun 26 2006 - 09:19:54 EDT
I just want to remind all that even though condor allows for submission of many-many jobs there
may be other reasons why this is ill advised. Please consider when submitted the i/o impact of the jobs.

If the expected i/rate to a given file system excedds ~ 10-20 Mb/sec this may well affects all other people on the rcas machines
even though they are run on crs nodes.

Case in point since about 6 am (EDT) the crs nodes have been sitting at >60% io/wait and the whole system quite sluggish.
If one is just reading ltr/gtr and doing very little computation, no more than about 20 jobs ought to be submitted at once.

Please help us all being able to do some work more effecient.

--------------------------------------------
Flemming Videbaek
Physics Department 
Bldg 510-D
Brookhaven National Laboratory
Upton, NY11973

phone: 631-344-4106
cell:       631-681-1596
fax:        631-344-1334
e-mail: videbaek @ bnl.gov


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Received on Mon Jun 26 09:20:34 2006

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