Simulations and Prototyping of the LHCb L1 and HLT Triggers

The Level 1 (L1) and High Level Triggers (HLT) for the LHCb experiment are software triggers which will be implemented on a farm of approximately 1800 computers, connected via a Gigabit LAN with a bandwidth capacity of 7.1 GB/s and containing some 500 Ethernet links. The architecture of the readout...

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Detalles Bibliográficos
Autores principales: Shears, T, Anderson, J, Kechadi, T, McNulty, R, Smoker, A, Barczyk, A, Dufey, J, Jost, B, Neufeld, N
Lenguaje:eng
Publicado: CERN 2004
Materias:
Computing and Computers
Acceso en línea:https://dx.doi.org/10.5170/CERN-2005-002.148
http://cds.cern.ch/record/1491215
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author Shears, T
Anderson, J
Kechadi, T
McNulty, R
Smoker, A
Barczyk, A
Dufey, J
Jost, B
Neufeld, N
author_facet Shears, T
Anderson, J
Kechadi, T
McNulty, R
Smoker, A
Barczyk, A
Dufey, J
Jost, B
Neufeld, N
author_sort Shears, T
collection CERN
description The Level 1 (L1) and High Level Triggers (HLT) for the LHCb experiment are software triggers which will be implemented on a farm of approximately 1800 computers, connected via a Gigabit LAN with a bandwidth capacity of 7.1 GB/s and containing some 500 Ethernet links. The architecture of the readout network must be optimised to maximise data throughput, control data flow and minimise errors. We report on the development and results of two independent software simulations which allow us to evaluate the performance of various network configurations. We also describe the construction of two hardware testbeds of the LHCb L1 and HLT trigger system, which allow microscopic and macroscopic study of network and switch behaviour.
id cern-1491215
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
publisher CERN
record_format invenio
spelling cern-14912152019-09-30T06:29:59Zdoi:10.5170/CERN-2005-002.148http://cds.cern.ch/record/1491215engShears, TAnderson, JKechadi, TMcNulty, RSmoker, ABarczyk, ADufey, JJost, BNeufeld, NSimulations and Prototyping of the LHCb L1 and HLT TriggersComputing and ComputersThe Level 1 (L1) and High Level Triggers (HLT) for the LHCb experiment are software triggers which will be implemented on a farm of approximately 1800 computers, connected via a Gigabit LAN with a bandwidth capacity of 7.1 GB/s and containing some 500 Ethernet links. The architecture of the readout network must be optimised to maximise data throughput, control data flow and minimise errors. We report on the development and results of two independent software simulations which allow us to evaluate the performance of various network configurations. We also describe the construction of two hardware testbeds of the LHCb L1 and HLT trigger system, which allow microscopic and macroscopic study of network and switch behaviour.CERNLHCb-PROC-2004-027CERN-LHCb-PROC-2004-027oai:cds.cern.ch:14912152004-09-29
spellingShingle Computing and Computers
Shears, T
Anderson, J
Kechadi, T
McNulty, R
Smoker, A
Barczyk, A
Dufey, J
Jost, B
Neufeld, N
Simulations and Prototyping of the LHCb L1 and HLT Triggers
title Simulations and Prototyping of the LHCb L1 and HLT Triggers
title_full Simulations and Prototyping of the LHCb L1 and HLT Triggers
title_fullStr Simulations and Prototyping of the LHCb L1 and HLT Triggers
title_full_unstemmed Simulations and Prototyping of the LHCb L1 and HLT Triggers
title_short Simulations and Prototyping of the LHCb L1 and HLT Triggers
title_sort simulations and prototyping of the lhcb l1 and hlt triggers
topic Computing and Computers
url https://dx.doi.org/10.5170/CERN-2005-002.148
http://cds.cern.ch/record/1491215
work_keys_str_mv AT shearst simulationsandprototypingofthelhcbl1andhlttriggers
AT andersonj simulationsandprototypingofthelhcbl1andhlttriggers
AT kechadit simulationsandprototypingofthelhcbl1andhlttriggers
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AT smokera simulationsandprototypingofthelhcbl1andhlttriggers
AT barczyka simulationsandprototypingofthelhcbl1andhlttriggers
AT dufeyj simulationsandprototypingofthelhcbl1andhlttriggers
AT jostb simulationsandprototypingofthelhcbl1andhlttriggers
AT neufeldn simulationsandprototypingofthelhcbl1andhlttriggers

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