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Performance of the CMS Event Builder

Author(s)
Andre, J-M.; Behrens, U.; Branson, J.; Brummer, P.; Chaze, O.; Cittolin, S.; Contescu, C.; Craigs, B.G.; Darlea, Georgiana-Lavinia; Deldicque, C.; Demiragli, Zeynep; Dobson, M.; Doualot, N.; Erhan, S.; Fulcher, J. F.; Gigi, D.; Gladki, M.; Glege, F.; Gomez-Ceballos, Guillelmo; Hegeman, J.; Holzner, A.; Janulis, M.; Jimenez-Estupinan, R.; Masetti, L.; Meijers, F.; Meschi, E.; Mommsen, R. K.; Morovic, S.; O’Dell, V.; Orsini, L.; Paus, Christoph M. E.; Petrova, P.; Pieri, M.; Racz, A.; Reis, T.; Sakulin, H.; Schwick, C.; Simelevicius, D.; Zejdl, P.; ... Show more Show less
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Creative Commons Attribution 3.0 unported license https://creativecommons.org/licenses/by/3.0/
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Abstract
The data acquisition system (DAQ) of the CMS experiment at the CERN Large Hadron Collider assembles events at a rate of 100 kHz, transporting event data at an aggregate throughput of to the high-level trigger farm. The DAQ architecture is based on state-of-the-art network technologies for the event building. For the data concentration, 10/40 Gbit/s Ethernet technologies are used together with a reduced TCP/IP protocol implemented in FPGA for a reliable transport between custom electronics and commercial computing hardware. A 56 Gbit/s Infiniband FDR Clos network has been chosen for the event builder. This paper presents the implementation and performance of the event-building system.
Date issued
2017
URI
https://hdl.handle.net/1721.1/121947
Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering; Massachusetts Institute of Technology. Laboratory for Nuclear Science; Massachusetts Institute of Technology. Department of Physics
Journal
Journal of Physics: Conference Series
Publisher
IOP Publishing
Citation
Andre, J-M et al. "Performance of the CMS Event Builder." Journal of Physics: Conference Series 898 (2017): 032020 © IOP Publishing
Version: Final published version
ISSN
1742-6596
1742-6588

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