Title :
Results from an ATM-based event builder demonstrator
Author :
Costa, M. ; Dufey, J.P. ; Letheren, M. ; Marchioro, A. ; McLaren, R. ; Paillard, C. ; Calvet, D. ; Djidi, K. ; Le Du ; Mandjavidze, I. ; Gustafsson, L. ; Manabe, A. ; Nomachi, M. ; Lazrak, T. ; Lindblad, T.H. ; Tenunen, H. ; De Prycker, M. ; Pauwels, B. ;
Author_Institution :
CERN, Geneva, Switzerland
Abstract :
ATM switching fabrics are good candidates to implement high performance parallel event builders for the future data acquisition systems of the LHC experiments. We are studying their feasibility through simulations and implementation of event builder demonstrators. The impact of the event builder characteristic traffic pattern on the switch has been studied and methods to avoid congestion in the switch have been proposed. Event building algorithms and data acquisition protocols have been developed. Measurements made with a demonstrator and comparisons with simulation studies are presented. The scalability of the measurements is discussed
Keywords :
data acquisition; detector circuits; high energy physics instrumentation computing; nuclear electronics; ATM switching fabrics; ATM-based event builder demonstrator; LHC; data acquisition protocols; data acquisition systems; high performance parallel event builders; scalability; switch congestion; traffic pattern; Asynchronous transfer mode; Computational modeling; Cyclic redundancy check; Data acquisition; Discrete event simulation; Scalability; Switches; Telecommunication traffic; Traffic control; Virtual colonoscopy;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference Record, 1995., 1995 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-3180-X
DOI :
10.1109/NSSMIC.1995.510360
