Title:
Grid Site Testing for ATLAS with
HammerCloud
Authors:
Johannes Elmsheuser, Ludwig-Maximilians-Universitaet Muenchen
Federica Legger, Ludwig-Maximilians-Universitaet Muenchen
Ramon Medrano Llamas, CERN
Gianfranco Sciacca, Universitaet Bern
Daniel Colin van der Ster, CERN
Type: Talk
Track: Distributed Processing and Data Handling
Abstract:
With the exponential growth of LHC (Large Hadron Collider) data in
2012, distributed computing has become the established way to
analyze collider data. The ATLAS grid infrastructure includes
more than 130 sites worldwide, ranging from large national computing
centers to smaller university clusters.
HammerCloud was previously
introduced with the goals of enabling VO- and site-administrators
to run validation tests of the site and software infrastructure in
an automated or on-demand manner. The
HammerCloud infrastructure has
been constantly improved to support the addition of new test
work-flows. These new work-flows comprise e.g. tests of the ATLAS
nightly build system, ATLAS MC production system,
XRootD federation
FAX and new site stress test work-flows. We report on the development,
optimization and results of the various components in the
HammerCloud framework.