Title :
The ATLAS Event Monitoring Service - Peer-to-Peer Data Distribution in High Energy Phyisics
Author :
Scholtes, Ingo ; Kolos, Serguei ; Zema, Pasquale Federico
Author_Institution :
Systemsoftware & Distributed Syst., Trier Univ.
fDate :
Oct. 29 2006-Nov. 1 2006
Abstract :
The ATLAS Event Monitoring service (Emon) is a CORBA-based Peer-to-Peer data distribution framework, which has been implemented for CERN´s forthcoming particle physics experiment ATLAS. Its purpose is to sample collision events from various stages of the data flow chain and efficiently distribute them to the users. Starting from a centralized predecessor version, this paper discusses various technical details of the current implementation along with a comparative study of communication complexity and scalability and a presentation of practical test results obtained during the HLT/DAQ large scale and performance test period in July 2005. Apart from that, a recent addition allowing users the parallel analysis of event data will be presented.
Keywords :
data communication; high energy physics instrumentation computing; nuclear electronics; peer-to-peer computing; ATLAS experiment; CERN; Event Monitoring Service; HLT/DAQ; collision events; communication complexity; high energy physics; parallel analysis; peer-to-peer data distribution; performance testing; scalability; Application software; Data acquisition; Data analysis; Event detection; Large-scale systems; Monitoring; Peer to peer computing; Sampling methods; Scalability; Testing;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2006. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-0560-2
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2006.355986
