Improved performance for the ATLAS ReadOut System with the switchbased architecture

About 600 custom-built ReadOut Buffer INput (ROBIN) PCI boards are used in the DataCollection system of the ATLAS experiment at CERN. They are plugged into the PCI slots of about 150 PCs of the ReadOut system (ROS). In the standard bus-based setup of the ROS requests and event data are passed via th...

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Detalles Bibliográficos
Autores principales: Schroer, N, Crone, G, Della Volpec, D, Gorini, B, Green, B, Joos, M, Kieft, G, Kordas, K, Kugel, A, Misiejuk, A, TeixeiraDias, P, Tremblet, L, Vermeulen, J, Werner, P, Wickens, F
Lenguaje:eng
Publicado: CERN 2009
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.5170/CERN-2009-006.407
http://cds.cern.ch/record/1213490
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author Schroer, N
Crone, G
Della Volpec, D
Gorini, B
Green, B
Joos, M
Kieft, G
Kordas, K
Kugel, A
Misiejuk, A
TeixeiraDias, P
Tremblet, L
Vermeulen, J
Werner, P
Wickens, F
author_facet Schroer, N
Crone, G
Della Volpec, D
Gorini, B
Green, B
Joos, M
Kieft, G
Kordas, K
Kugel, A
Misiejuk, A
TeixeiraDias, P
Tremblet, L
Vermeulen, J
Werner, P
Wickens, F
author_sort Schroer, N
collection CERN
description About 600 custom-built ReadOut Buffer INput (ROBIN) PCI boards are used in the DataCollection system of the ATLAS experiment at CERN. They are plugged into the PCI slots of about 150 PCs of the ReadOut system (ROS). In the standard bus-based setup of the ROS requests and event data are passed via the PCI interfaces. The performance meets the requirements, but may need to be enhanced for more demanding use cases. Modifications in the software and firmware of the ROBINs have made it possible to improve the performance by using the onboard Gigabit Ethernet interfaces for passing part of the requests and of the data in the so called switch-based scenario. Details of these modifications as well as measurement results will be presented in this paper.
id cern-1213490
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
publisher CERN
record_format invenio
spelling cern-12134902019-09-30T06:29:59Zdoi:10.5170/CERN-2009-006.407http://cds.cern.ch/record/1213490engSchroer, NCrone, GDella Volpec, DGorini, BGreen, BJoos, MKieft, GKordas, KKugel, AMisiejuk, ATeixeiraDias, PTremblet, LVermeulen, JWerner, PWickens, FImproved performance for the ATLAS ReadOut System with the switchbased architectureDetectors and Experimental TechniquesAbout 600 custom-built ReadOut Buffer INput (ROBIN) PCI boards are used in the DataCollection system of the ATLAS experiment at CERN. They are plugged into the PCI slots of about 150 PCs of the ReadOut system (ROS). In the standard bus-based setup of the ROS requests and event data are passed via the PCI interfaces. The performance meets the requirements, but may need to be enhanced for more demanding use cases. Modifications in the software and firmware of the ROBINs have made it possible to improve the performance by using the onboard Gigabit Ethernet interfaces for passing part of the requests and of the data in the so called switch-based scenario. Details of these modifications as well as measurement results will be presented in this paper.CERNATL-DAQ-PROC-2009-033oai:cds.cern.ch:12134902009-10-19
spellingShingle Detectors and Experimental Techniques
Schroer, N
Crone, G
Della Volpec, D
Gorini, B
Green, B
Joos, M
Kieft, G
Kordas, K
Kugel, A
Misiejuk, A
TeixeiraDias, P
Tremblet, L
Vermeulen, J
Werner, P
Wickens, F
Improved performance for the ATLAS ReadOut System with the switchbased architecture
title Improved performance for the ATLAS ReadOut System with the switchbased architecture
title_full Improved performance for the ATLAS ReadOut System with the switchbased architecture
title_fullStr Improved performance for the ATLAS ReadOut System with the switchbased architecture
title_full_unstemmed Improved performance for the ATLAS ReadOut System with the switchbased architecture
title_short Improved performance for the ATLAS ReadOut System with the switchbased architecture
title_sort improved performance for the atlas readout system with the switchbased architecture
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.5170/CERN-2009-006.407
http://cds.cern.ch/record/1213490
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