Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Operational experience with the new CMS DAQ-Expert

Jean‐Marc André, U. Behrens, J. G. Branson, Philipp Brummer, Sergio Cittolin, Diego da Silva Gomes, Georgiana-Lavinia Darlea, Christian Deldicque, Z. Demiragli, Marc Dobson, Nicolas Doualot, S. Erhan, J. Fulcher, D. Gigi, Maciej Gładki, F. Glege, G. Gomez Ceballos, J. Hegeman, André Holzner, Michael Lettrich, Audrius Mečionis, F. Meijers, E. Meschi, R. K. Mommsen, Srećko Morović, Vivian O ́Dell, L. Orsini, I. Papakrivopoulos, Christoph Paus, Andrea Petrucci, M. Pieri, Dinyar Rabady, A. Rácz, V. Rapševičius, T. Reis, Hannes Sakulin, Christoph Schwick, Dainius Šimelevičius, Mantas Stankevičius, Cristina Vazquez Velez, Michail Vougioukas, Christian Wernet, P. Zejdl

EPJ Web of Conferences · 2019

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Summary

The data acquisition (DAQ) system of the Compact Muon Solenoid (CMS) at CERN reads out the detector at the level-1 trigger accept rate of 100 kHz, assembles events with a bandwidth of 200 GB/s, provides these events to the high level-trigger running on a farm of about 30k cores and records the accepted events. Comprising custom-built and cutting edge commercial hardware and several 1000 instances of software applications, the DAQ system is complex in itself and failures cannot be completely excluded. Moreover, problems in the readout of the detectors,in the first level trigger system or in the high level trigger may provoke anomalous behaviour of the DAQ systemwhich sometimes cannot easily be differentiated from a problem in the DAQ system itself. In order to achieve high data taking effic

Source type
Peer-reviewed study
DOI
10.1051/epjconf/201921401015
Catalogue ID
BFmoakviqe-wzk6jt
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