A New Event Builder for CMS Run II
| Autor: | Christian Deldicque, G. L. Darlea, Samim Erhan, Olivier Chaze, Luciano Orsini, Kim Albertsson, Konstanty Sumorok, Guillelmo Gomez-Ceballos, André Holzner, Hannes Sakulin, P. Roberts, Benjamin Stieger, Jan Veverka, Ulf Behrens, Frank Glege, S. Zaza, Srecko Morovic, C. Nunez-Barranco-Fernandez, J. G. Branson, J. M. Andre, Anastasios Andronidis, L. Masetti, Emilio Meschi, Andrea Petrucci, A Dupont, Marco Pieri, Vivian O'Dell, Remigius K. Mommsen, Marc Dobson, C. Paus, Sergio Cittolin, Dominique Gigi, Attila Racz, Christoph Schwick, R. Jimenez-Estupiñán, Jeroen Hegeman, Frans Meijers, Petr Zejdl |
|---|---|
| Přispěvatelé: | Massachusetts Institute of Technology. Department of Physics, Massachusetts Institute of Technology. Laboratory for Nuclear Science, Darlea, G.-L., Gomez-Ceballos, Guillelmo, Paus, Christoph M. E., Sumorok, Konstanty C, Veverka, Jan |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Ethernet
History Engineering Large Hadron Collider business.industry Event (computing) computer.software_genre Computer Science Applications Education law.invention Data acquisition Clos network law Embedded system Internet Protocol Operating system Software design Detectors and Experimental Techniques business Field-programmable gate array computer |
| Zdroj: | IOP Publishing |
| Popis: | The data acquisition system (DAQ) of the CMS experiment at the CERN Large Hadron Collider (LHC) assembles events at a rate of 100 kHz, transporting event data at an aggregate throughput of 100GB/s to the high-level trigger (HLT) farm. The DAQ system has been redesigned during the LHC shutdown in 2013/14. The new DAQ architecture is based on state-of-the-art network technologies for the event building. For the data concentration, 10/40 Gbps 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 Gbps Infiniband FDR CLOS network has been chosen for the event builder. This paper discusses the software design, protocols, and optimizations for exploiting the hardware capabilities. We present performance measurements from small-scale prototypes and from the full-scale production system. United States. Department of Energy National Science Foundation (U.S.) |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|