Atlas-connect-l mailing list

[Lincoln Bryant <lincolnb AT uchicago.edu>]

Hi Rob, all,

Regarding the rcc.uchicago.edu resource, Dave Lesny and I have been working on a wrapper script for Midway jobs that would automatically make CVMFS available to ATLAS Connect users. However, one limitation of Parrot is that switching between repositories (e.g., from atlas.cern.ch to atlas-condb.cern.ch) is only experimentally supported. In practice, I have found the repository switching to be very slow.

This leads me to the following question: What kind of workloads can be run with only the atlas.cern.ch repository?

When I try to setup ALRB, for example, I get warnings that atlas-condb and sft are not mounted. I notice that on MWT2 we have atlas-nightlies available as well.

--Lincoln

On 1/28/2014 6:35 PM, Rob Gardner wrote:

I just submitted 20,000 5 minute jobs. They all ran successfully.  Below is a 
partial histogram of the job distribution.

Notice the new resource, rcc.uchicago.edu <http://rcc.uchicago.edu>, which is 
from the UC research computing center (the
nodes have names with “midway” in the name).  Note - they don’t have CVMFS 
mounted, one
has to use Parrot to access CVMFS.  We hope to get a nice ROOT example in the
ATLAS ConnectBook giving a recipe.   Note this resource wont always be 
available, but
we are working on gaining access as backfill.

- Rob



---
Rob Gardner • Twitter: @rwg •Skype: rwg773 • g+: rob.rwg • +1 312-804-0859 • 
University of Chicago

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