FELIX: a High-Throughput Network Approach for Interfacing to Front End Electronics for ATLAS Upgrades

21st International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Anderson, J.^1 ; Borga, A.^4 ; Boterenbrood, H.^4 ; Chen, H.^2 ; Chen, K.^2 ; Drake, G.^1 ; Francis, D.^3 ; Gorini, B.^3 ; Lanni, F.^2 ; Miotto, G Lehmann^3 ; Levinson, L.^6 ; Narevicius, J.^6 ; Plessl, C.^5 ; Roich, A.^6 ; Ryu, S.^1 ; Schreuder, F.^4 ; Schumacher, J.^3,5 ; Vandelli, W.^3 ; Vermeulen, J.^4 ; Zhang, J.^1

Argonne National Laboratory, United States^1

Brookhaven National Laboratory, United States^2

CERN, Switzerland^3

Nikhef National Institute for Subatomic Physics, University of Amsterdam, Netherlands^4

Department of Computer Science, University of Paderborn, Germany^5

Department of Particle Physics, Weizmann Institute of Science, Israel^6

关键词: Architectural changes;    Data acquisition system;    Design and implementations;    Detector control;    Detector control systems;    Front end electronics;    Hardware and software;    Industry standards;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/664/8/082050/pdf
DOI  :  10.1088/1742-6596/664/8/082050

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The ATLAS experiment at CERN is planning full deployment of a new unified optical link technology for connecting detector front end electronics on the timescale of the LHC Run 4 (2025). It is estimated that roughly 8000 GBT (GigaBit Transceiver) links, with transfer rates up to 10.24 Gbps, will replace existing links used for readout, detector control and distribution of timing and trigger information. A new class of devices will be needed to interface many GBT links to the rest of the trigger, data-acquisition and detector control systems. In this paper FELIX (Front End LInk eXchange) is presented, a PC-based device to route data from and to multiple GBT links via a high-performance general purpose network capable of a total throughput up to O(20 Tbps). FELIX implies architectural changes to the ATLAS data acquisition system, such as the use of industry standard COTS components early in the DAQ chain. Additionally the design and implementation of a FELIX demonstration platform is presented and hardware and software aspects will be discussed.