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Network performance measurements as part of feasibility studies on moving an ATLAS event filter to off-site institutes

We present a system for measuring network performance as part of the feasibility studies for locating the ATLAS third level trigger, the event filter (EF), in remote locations. Part of the processing power required to run the EF algorithms, the current estimate is 2000 state off the art processors,...

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Autores principales: Korcyl, K, Beuran, R, Dobinson, Robert W, Ivanovici, M, Losada-Maia, Marcia, Meirosu, C, Sladowski, G
Lenguaje:eng
Publicado: 2004
Materias:
Acceso en línea:http://cds.cern.ch/record/818538
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author Korcyl, K
Beuran, R
Dobinson, Robert W
Ivanovici, M
Losada-Maia, Marcia
Meirosu, C
Sladowski, G
author_facet Korcyl, K
Beuran, R
Dobinson, Robert W
Ivanovici, M
Losada-Maia, Marcia
Meirosu, C
Sladowski, G
author_sort Korcyl, K
collection CERN
description We present a system for measuring network performance as part of the feasibility studies for locating the ATLAS third level trigger, the event filter (EF), in remote locations. Part of the processing power required to run the EF algorithms, the current estimate is 2000 state off the art processors, can be provided in remote, CERN-affiliated institutes, if a suitable network connection between CERN and the remote site could be achieved. The system is composed of two PCs equipped with GPS systems, CERN-designed clock cards and Alteon gigabit programmable network interface cards. In the first set of measurements we plan to quantify connection in terms of end-to-end latency, throughput, jitter and packet loss. Running streaming tests and study throughput, IP QoS, routing testing and traffic shaping follows this. Finally, we plan to install the event filter software in a remote location and feed it with data from test beams at CERN. Each of these tests should be preformed with the test traffic treated in the network on the "best effort" basis and also when the traffic is sent via a 'dedicated' channel. The description of the system initially deployed in CERN-Geneva/Switzerland and Cracow/Poland is followed by results from the first measurements. (4 refs).
id cern-818538
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
record_format invenio
spelling cern-8185382019-09-30T06:29:59Zhttp://cds.cern.ch/record/818538engKorcyl, KBeuran, RDobinson, Robert WIvanovici, MLosada-Maia, MarciaMeirosu, CSladowski, GNetwork performance measurements as part of feasibility studies on moving an ATLAS event filter to off-site institutesDetectors and Experimental TechniquesWe present a system for measuring network performance as part of the feasibility studies for locating the ATLAS third level trigger, the event filter (EF), in remote locations. Part of the processing power required to run the EF algorithms, the current estimate is 2000 state off the art processors, can be provided in remote, CERN-affiliated institutes, if a suitable network connection between CERN and the remote site could be achieved. The system is composed of two PCs equipped with GPS systems, CERN-designed clock cards and Alteon gigabit programmable network interface cards. In the first set of measurements we plan to quantify connection in terms of end-to-end latency, throughput, jitter and packet loss. Running streaming tests and study throughput, IP QoS, routing testing and traffic shaping follows this. Finally, we plan to install the event filter software in a remote location and feed it with data from test beams at CERN. Each of these tests should be preformed with the test traffic treated in the network on the "best effort" basis and also when the traffic is sent via a 'dedicated' channel. The description of the system initially deployed in CERN-Geneva/Switzerland and Cracow/Poland is followed by results from the first measurements. (4 refs).oai:cds.cern.ch:8185382004
spellingShingle Detectors and Experimental Techniques
Korcyl, K
Beuran, R
Dobinson, Robert W
Ivanovici, M
Losada-Maia, Marcia
Meirosu, C
Sladowski, G
Network performance measurements as part of feasibility studies on moving an ATLAS event filter to off-site institutes
title Network performance measurements as part of feasibility studies on moving an ATLAS event filter to off-site institutes
title_full Network performance measurements as part of feasibility studies on moving an ATLAS event filter to off-site institutes
title_fullStr Network performance measurements as part of feasibility studies on moving an ATLAS event filter to off-site institutes
title_full_unstemmed Network performance measurements as part of feasibility studies on moving an ATLAS event filter to off-site institutes
title_short Network performance measurements as part of feasibility studies on moving an ATLAS event filter to off-site institutes
title_sort network performance measurements as part of feasibility studies on moving an atlas event filter to off-site institutes
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/818538
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