21-25 May 2012
New York City, NY, USA
US/Eastern timezone

CMS resource utilization and limitations on the grid after the first two years of LHC collisions

22 May 2012, 13:30
4h 45m
Rosenthal Pavilion (10th floor) (Kimmel Center)

Rosenthal Pavilion (10th floor)

Kimmel Center

Poster Distributed Processing and Analysis on Grids and Clouds (track 3) Poster Session


Kenneth Bloom (University of Nebraska (US))


After years of development, the CMS distributed computing system is now in full operation. The LHC continues to set records for instantaneous luminosity, and CMS records data at 300 Hz. Because of the intensity of the beams, there are multiple proton-proton interactions per beam crossing, leading to larger and larger event sizes and processing times. The CMS computing system has responded admirably to these challenges, but some reoptimization of the computing model has been required to maximize the physics output of the collaboration in the face of increasingly constrained computing resources. We present the current status of the system, describe the recent performance, and discuss the challenges ahead and how we intend to meet them.

Primary authors

Dr Andrea Sciaba (CERN) Dr Chris Brew (STFC - Science & Technology Facilities Council (GB)) Dr Daniele Bonacorsi (Universita e INFN (IT)) Giuseppe Bagliesi (Sezione di Pisa (IT)) Ian Fisk (Fermi National Accelerator Lab. (US)) José Flix Kenneth Bloom (University of Nebraska (US)) Peter Kreuzer (Rheinisch-Westfaelische Tech. Hoch. (DE))

Presentation Materials