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

Author

Beck, Hans Peter ; Abolins, Maris ; Anjos, Andre Dos ; Barisonzi, Marcello ; Beretta, Matteo Mario ; Blair, Robert ; Bogaerts, Joannes Andreas ; Boterenbrood, Henk ; Botterill, David ; Ciobotaru, Matei Dan ; Cortezon, Enrique Palencia ; Cranfield, Robert

Volume

51

Issue

3

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

470

Lastpage

475

Abstract

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.

Keywords

C++ language; Unix; data acquisition; data flow analysis; field programmable gate arrays; local area networks; optical fibre communication; position sensitive particle detectors; programming environments; readout electronics; system buses; ATLAS DAQ dataflow system; ATLAS trigger; C++; Linux environment; bandwidths; base-line dataflow system; base-line design; computer network performance; data acquisition; data buses; field programmable gate arrays; flow control; gigabit Ethernet network; message passing; multithreaded software applications; network testing; optical fiber communication; particle collisions; radiation detectors; Data acquisition; Delay; Detectors; Event detection; Field programmable gate arrays; Large Hadron Collider; Optical arrays; Physics; Protons; Software prototyping; Computer network performance; DAQ; FPGAs; data acquisition; data buses; field programmable gate arrays; flow control; message passing; network testing; networks; optical fiber communication; particle collisions; radiation detectors; software; triggering;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2004.828707

Filename

1310543