The CMS High Level Trigger System

The CMS Data Acquisition (DAQ) System relies on a purely software driven High Level Trigger (HLT) to reduce the full Level-1 accept rate of 100 kHz to approximately 100 Hz for archiving and later offline analysis. The HLT operates on the full information of events assembled by an event builder colle...

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Detalles Bibliográficos
Autores principales: Afaq, A, Badgett, W, Bauer, G, Biery, K, Boyer, V, Branson, J, Brett, A, Cano, E, Carboni, A, Cheung, H, Ciganek, M, Cittolin, S, Dagenhart, W, Erhan, S, Gigi, D, Glege, F, Gómez-Reino, Robert, Gulmini, M, Gutiérrez-Mlot, E, Gutleber, J, Jacobs, C, Kim, J C, Klute, M, Kowalkowski, J, Lipeles, E, Lopez-Perez, Juan Antonio, Maron, G, Meijers, F, Meschi, E, Moser, R, Murray, S, Oh, A, Orsini, L, Paus, C, Petrucci, A, Pieri, M, Pollet, L, Rácz, A, Sakulin, H, Sani, M, Schieferdecker, P, Schwick, C, Sexton-Kennedy, E, Sumorok, K, Suzuki, I, Tsirigkas, D, Varela, J
Lenguaje:eng
Publicado: 2007
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1046339
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author Afaq, A
Badgett, W
Bauer, G
Biery, K
Boyer, V
Branson, J
Brett, A
Cano, E
Carboni, A
Cheung, H
Ciganek, M
Cittolin, S
Dagenhart, W
Erhan, S
Gigi, D
Glege, F
Gómez-Reino, Robert
Gulmini, M
Gutiérrez-Mlot, E
Gutleber, J
Jacobs, C
Kim, J C
Klute, M
Kowalkowski, J
Lipeles, E
Lopez-Perez, Juan Antonio
Maron, G
Meijers, F
Meschi, E
Moser, R
Murray, S
Oh, A
Orsini, L
Paus, C
Petrucci, A
Pieri, M
Pollet, L
Rácz, A
Sakulin, H
Sani, M
Schieferdecker, P
Schwick, C
Sexton-Kennedy, E
Sumorok, K
Suzuki, I
Tsirigkas, D
Varela, J
author_facet Afaq, A
Badgett, W
Bauer, G
Biery, K
Boyer, V
Branson, J
Brett, A
Cano, E
Carboni, A
Cheung, H
Ciganek, M
Cittolin, S
Dagenhart, W
Erhan, S
Gigi, D
Glege, F
Gómez-Reino, Robert
Gulmini, M
Gutiérrez-Mlot, E
Gutleber, J
Jacobs, C
Kim, J C
Klute, M
Kowalkowski, J
Lipeles, E
Lopez-Perez, Juan Antonio
Maron, G
Meijers, F
Meschi, E
Moser, R
Murray, S
Oh, A
Orsini, L
Paus, C
Petrucci, A
Pieri, M
Pollet, L
Rácz, A
Sakulin, H
Sani, M
Schieferdecker, P
Schwick, C
Sexton-Kennedy, E
Sumorok, K
Suzuki, I
Tsirigkas, D
Varela, J
author_sort Afaq, A
collection CERN
description The CMS Data Acquisition (DAQ) System relies on a purely software driven High Level Trigger (HLT) to reduce the full Level-1 accept rate of 100 kHz to approximately 100 Hz for archiving and later offline analysis. The HLT operates on the full information of events assembled by an event builder collecting detector data from the CMS front-end systems. The HLT software consists of a sequence of reconstruction and filtering modules executed on a farm of O(1000) CPUs built from commodity hardware. This paper presents the architecture of the CMS HLT, which integrates the CMS reconstruction framework in the online environment. The mechanisms to configure, control, and monitor the Filter Farm and the procedures to validate the filtering code within the DAQ environment are described.
id cern-1046339
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2007
record_format invenio
spelling cern-10463392019-09-30T06:29:59Zhttp://cds.cern.ch/record/1046339engAfaq, ABadgett, WBauer, GBiery, KBoyer, VBranson, JBrett, ACano, ECarboni, ACheung, HCiganek, MCittolin, SDagenhart, WErhan, SGigi, DGlege, FGómez-Reino, RobertGulmini, MGutiérrez-Mlot, EGutleber, JJacobs, CKim, J CKlute, MKowalkowski, JLipeles, ELopez-Perez, Juan AntonioMaron, GMeijers, FMeschi, EMoser, RMurray, SOh, AOrsini, LPaus, CPetrucci, APieri, MPollet, LRácz, ASakulin, HSani, MSchieferdecker, PSchwick, CSexton-Kennedy, ESumorok, KSuzuki, ITsirigkas, DVarela, JThe CMS High Level Trigger SystemDetectors and Experimental TechniquesThe CMS Data Acquisition (DAQ) System relies on a purely software driven High Level Trigger (HLT) to reduce the full Level-1 accept rate of 100 kHz to approximately 100 Hz for archiving and later offline analysis. The HLT operates on the full information of events assembled by an event builder collecting detector data from the CMS front-end systems. The HLT software consists of a sequence of reconstruction and filtering modules executed on a farm of O(1000) CPUs built from commodity hardware. This paper presents the architecture of the CMS HLT, which integrates the CMS reconstruction framework in the online environment. The mechanisms to configure, control, and monitor the Filter Farm and the procedures to validate the filtering code within the DAQ environment are described.CMS-CR-2007-017oai:cds.cern.ch:10463392007-05-09
spellingShingle Detectors and Experimental Techniques
Afaq, A
Badgett, W
Bauer, G
Biery, K
Boyer, V
Branson, J
Brett, A
Cano, E
Carboni, A
Cheung, H
Ciganek, M
Cittolin, S
Dagenhart, W
Erhan, S
Gigi, D
Glege, F
Gómez-Reino, Robert
Gulmini, M
Gutiérrez-Mlot, E
Gutleber, J
Jacobs, C
Kim, J C
Klute, M
Kowalkowski, J
Lipeles, E
Lopez-Perez, Juan Antonio
Maron, G
Meijers, F
Meschi, E
Moser, R
Murray, S
Oh, A
Orsini, L
Paus, C
Petrucci, A
Pieri, M
Pollet, L
Rácz, A
Sakulin, H
Sani, M
Schieferdecker, P
Schwick, C
Sexton-Kennedy, E
Sumorok, K
Suzuki, I
Tsirigkas, D
Varela, J
The CMS High Level Trigger System
title The CMS High Level Trigger System
title_full The CMS High Level Trigger System
title_fullStr The CMS High Level Trigger System
title_full_unstemmed The CMS High Level Trigger System
title_short The CMS High Level Trigger System
title_sort cms high level trigger system
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1046339
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