Author :
Angstadt, R. ; Brooijmans, G. ; Chapin, D. ; Clements, M. ; Cutts, D. ; Haas, A. ; Hauser, R. ; Johnson, M. ; Kulyavtsev, A. ; Mattingly, S.E.K. ; Mulders, M. ; Padley, P. ; Petravick, D. ; Rechenmacher, R. ; Snyder, S. ; Watts, G.
Abstract :
The DZERO experiment began RunII datataking operation at Fermilab in spring 2001. The physics program of the experiment requires the Level 3 data acquisition (DAQ) system system to handle average event sizes of 250 kilobytes at a rate of 1 kHz. The system routes and transfers event fragments of approximately 1-20 kilobytes from 63 VME crate sources to any of approximately 100 processing nodes. It is built upon a Cisco 6509 Ethernet switch, standard PCs, and commodity VME single board computers (SBCs). The system has been in full operation since spring 2002.
Keywords :
data acquisition; high energy physics instrumentation computing; local area networks; proton accelerators; readout electronics; synchrotrons; Cisco 6509 Ethernet switch; DAQ system; DZERO Level 3 data acquisition system; Fermilab; Run II data taking operation; VME readout crate sources; antiproton+proton; commodity VME single board computers; computer networks; monitoring; standard PC; triggering; Data acquisition; Detectors; Ethernet networks; Hardware; Laboratories; Personal communication networks; Physics; Routing; Springs; Switches; Computer networks; data acquisition; monitoring; physics; triggering;
