Performance of the NorduGrid ARC and the Dulcinea Executor in ATLAS Data Challenge 2
Wadenstein, M, Riiser, H, Konstantinov, A, Wäänänen, A, Duckeck, G, Haeberli, C, Hanshaugen, M, Kennedy, J, Hansen, J, Ellert, M, Nixon, L, Eerola, Paule Anna Mari, Ould-Saada, F, Sandgren, A, Kleist, J, Ekelöf, T J C, Sturrock, R, Malinowsky, L, Sunde, S, Pajchel, K · CERN Document Server (European Organization for Nuclear Research) · 2005
This talk describes the various stages of ATLAS Data Challenge 2 (DC2) in what concerns usage of resources deployed via NorduGrid's Advanced Resource Connector (ARC).It also describes the integration of these resources with the ATLAS production system using the Dulcinea executor.ATLAS Data Challenge 2 (DC2), run in 2004, was designed to be a step forward in the distributed data processing.In particular, much coordination of task assignment to resources was planned to be delegated to Grid in its different flavours.An automatic production management system was designed, to direct the tasks to Grids and conventional resources.The Dulcinea executor is a part of this system that provides interface to the information system and resource brokering capabilities of the ARC middleware.The executor translates the job definitions received from the supervisor to the extended resource specification language (XRSL) used by the ARC middleware.It also takes advantage of the ARC middleware's built-in support for the Globus Replica Location Server (RLS) for file registration and lookup.NorduGrid's ARC has been deployed on many ATLAS- * mattias.ellert