terena networking conference 2010


Grid computing for the LHC - the Service is the Challenge

The world's largest scientific machine - and operating at below 2 degrees Kelvin also the coolest - deploys a worldwide federated grid for offline data processing and analysis at the petascale. This talk focuses on the services aspects of the Worldwide LHC Computing Grid (WLCG) and explains how it is setup, the overall organisation, WLCG operations and the major challenges that we have faced and successfully resolved. One of the key aspects of the system is the network, which allows in excess of 1PB to be routinely moved between grid sites per day. The experience from the first extended run of the LHC will be covered, as well as the outlook for the medium term.