Supervision of the ATLAS High Level Trigger System

The ATLAS High Level Trigger (HLT) system provides software-based event selection after the initial LVL1 hardware trigger. It is composed of two stages, the LVL2 trigger and the Event Filter. The HLT is implemented as software tasks running on large processor farms. An essential part of the HLT is t...

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Detalles Bibliográficos
Autores principales: Wheeler, S., Flammer, J., Meessen, C., Qian, Z., Touchard, F., Negri, France A., Zobernig, H.
Lenguaje:eng
Publicado: 2003
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/618521
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author Wheeler, S.
Flammer, J.
Meessen, C.
Qian, Z.
Touchard, F.
Negri, France A.
Zobernig, H.
author_facet Wheeler, S.
Flammer, J.
Meessen, C.
Qian, Z.
Touchard, F.
Negri, France A.
Zobernig, H.
author_sort Wheeler, S.
collection CERN
description The ATLAS High Level Trigger (HLT) system provides software-based event selection after the initial LVL1 hardware trigger. It is composed of two stages, the LVL2 trigger and the Event Filter. The HLT is implemented as software tasks running on large processor farms. An essential part of the HLT is the supervision system, which is responsible for configuring, coordinating, controlling and monitoring the many hundreds of processes running in the HLT. A prototype implementation of the supervision system, using tools from the ATLAS Online Software system is presented. Results from scalability tests are also presented where the supervision system was shown to be capable of controlling over 1000 HLT processes running on 230 nodes.
id cern-618521
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2003
record_format invenio
spelling cern-6185212023-03-12T05:58:37Zhttp://cds.cern.ch/record/618521engWheeler, S.Flammer, J.Meessen, C.Qian, Z.Touchard, F.Negri, France A.Zobernig, H.Supervision of the ATLAS High Level Trigger SystemParticle Physics - ExperimentThe ATLAS High Level Trigger (HLT) system provides software-based event selection after the initial LVL1 hardware trigger. It is composed of two stages, the LVL2 trigger and the Event Filter. The HLT is implemented as software tasks running on large processor farms. An essential part of the HLT is the supervision system, which is responsible for configuring, coordinating, controlling and monitoring the many hundreds of processes running in the HLT. A prototype implementation of the supervision system, using tools from the ATLAS Online Software system is presented. Results from scalability tests are also presented where the supervision system was shown to be capable of controlling over 1000 HLT processes running on 230 nodes.The ATLAS High Level Trigger (HLT) system provides software-based event selection after the initial LVL1 hardware trigger. It is composed of two stages, the LVL2 trigger and the Event Filter. The HLT is implemented as software tasks running on large processor farms. An essential part of the HLT is the supervision system, which is responsible for configuring, coordinating, controlling and monitoring the many hundreds of processes running in the HLT. A prototype implementation of the supervision system, using tools from the ATLAS Online Software system is presented. Results from scalability tests are also presented where the supervision system was shown to be capable of controlling over 1000 HLT processes running on 230 nodes.hep-ex/0305093CHEP-2003-TUGT009ATL-DAQ-2003-010ATL-DAQ-2003-010oai:cds.cern.ch:6185212003-05-28
spellingShingle Particle Physics - Experiment
Wheeler, S.
Flammer, J.
Meessen, C.
Qian, Z.
Touchard, F.
Negri, France A.
Zobernig, H.
Supervision of the ATLAS High Level Trigger System
title Supervision of the ATLAS High Level Trigger System
title_full Supervision of the ATLAS High Level Trigger System
title_fullStr Supervision of the ATLAS High Level Trigger System
title_full_unstemmed Supervision of the ATLAS High Level Trigger System
title_short Supervision of the ATLAS High Level Trigger System
title_sort supervision of the atlas high level trigger system
topic Particle Physics - Experiment
url http://cds.cern.ch/record/618521
work_keys_str_mv AT wheelers supervisionoftheatlashighleveltriggersystem
AT flammerj supervisionoftheatlashighleveltriggersystem
AT meessenc supervisionoftheatlashighleveltriggersystem
AT qianz supervisionoftheatlashighleveltriggersystem
AT touchardf supervisionoftheatlashighleveltriggersystem
AT negrifrancea supervisionoftheatlashighleveltriggersystem
AT zobernigh supervisionoftheatlashighleveltriggersystem

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