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The base-line DataFlow system of the ATLAS Trigger and DAQ

  • Author(s): Beck, HP;
  • Abolins, M;
  • Dos Anjos, A;
  • Barisonzi, M;
  • Beretta, MM;
  • Blair, R;
  • Bogaerts, JA;
  • Boterenbrood, H;
  • Botterill, D;
  • Ciobotaru, MD;
  • Cortezon, EP;
  • Cranfield, R;
  • Crone, G;
  • Dawson, J;
  • Di Girolamo, B;
  • Dobinson, RW;
  • Ermoline, Y;
  • Ferrer, ML;
  • Francis, D;
  • Gadomski, S;
  • Gameiro, SM;
  • Golonka, P;
  • Gorini, B;
  • Green, B;
  • Gruwe, M;
  • Haas, S;
  • Haeberli, C;
  • Hasegawa, Y;
  • Hauser, R;
  • Hinkelbein, C;
  • Hughes-Jones, R;
  • Knezo, E;
  • Jansweijer, P;
  • Joos, M;
  • Kaczmarska, A;
  • Kieft, G;
  • Korcyl, K;
  • Kugel, A;
  • Lankford, AJ;
  • Lehmann, G;
  • LeVine, MJ;
  • Liu, W;
  • Maeno, T;
  • Maia, ML;
  • Mapelli, L;
  • Martin, B;
  • McLaren, R;
  • Meirosu, C;
  • Misiejuk, AS;
  • Mommsen, R;
  • Mornacchi, G;
  • Müller, M;
  • Nagasaka, Y;
  • Nakayoshi, K;
  • Papadopoulos, I;
  • Petersen, J;
  • De Matos Lopes Pinto, P;
  • Prigent, D;
  • Reale, VF;
  • Schlereth, J;
  • Shimojima, M;
  • Spiwoks, R;
  • Stancu, SN;
  • Strong, J;
  • Tremblet, L;
  • Vermeulen, J;
  • Werner, P;
  • Wickens, FJ;
  • Yasu, Y;
  • Yu, M;
  • Zobernig, H;
  • Zurek, M
  • et al.

The base-line design and implementation of the ATLAS DAQ DataFlow system is described. The main components of the DataFlow system, their interactions, bandwidths, and rates are discussed and performance measurements on a 10% scale prototype for the final ATLAS TDAQ DataFlow system are presented. This prototype is a combination of custom design components and of multithreaded software applications implemented in C++ and running in a Linux environment on commercially available PCs interconnected by a fully switched gigabit Ethernet network.

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