:: CMS experience using the EDG testbed
Alessandra Fanfani
Physics Dept. & INFN
University of Bologna |
Download the slides [ppt|pdf] |
The main computing activity of CMS is currently related to the
simulation, with Monte Carlo based programs, of the experimental
apparatus response. CMS tested its production software for simulation
on the European DataGRID Project (EDG) environment. A large number
of jobs (~10000) were submitted from four different location in
Europe to many distributed sites, thus producing data for physics
studies of CMS. The main goals of this activity were to verify
the portability of CMS production environment into a grid environment
and the robustness of the European DataGrid middleware under the
heavy load of a large scale MC simulation. Another CMS activity
on the EDG testbed was focused on performing systematic submission
of many jobs with different computational and I/O requirements,
over a period of about 4 months, in order to evaluate the behaviour
of the Grid as a function of the computational load of the jobs.