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Recent experience and future evolution of the CMS High Level Trigger System
The CMS experiment at the LHC uses a two-stage trigger system, with events flowing from the first level trigger at a rate of 100 kHz. These events are read out by the Data Acquisition system (DAQ), assembled in memory in a farm of computers, and finally fed into the high-level trigger (HLT) software...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2012
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/1461735 |
| _version_ | 1780925289207955456 |
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| author | Bauer, Gerry Behrens, Ulf Branson, James Bukowiec, Sebastian Czeslaw Chaze, Olivier Cittolin, Sergio Coarasa Perez, Jose Antonio Deldicque, Christian Dobson, Marc Dupont, Aymeric Erhan, Samim Gigi, Dominique Glege, Frank Gomez-Reino Garrido, Robert Hartl, Christian Holzner, Andre Georg Masetti, Lorenzo Meijers, Franciscus Meschi, Emilio Mommsen, Remigius Nunez Barranco Fernandez, Carlos O'Dell, Vivian Orsini, Luciano Paus, Christoph Maria Ernst Petrucci, Andrea Pieri, Marco Polese, Giovanni Racz, Attila Raginel, Olivier Sakulin, Hannes Sani, Matteo Schwick, Christoph Spataru, Andrei Cristian Stoeckli, Fabian Sumorok, Konstanty |
| author_facet | Bauer, Gerry Behrens, Ulf Branson, James Bukowiec, Sebastian Czeslaw Chaze, Olivier Cittolin, Sergio Coarasa Perez, Jose Antonio Deldicque, Christian Dobson, Marc Dupont, Aymeric Erhan, Samim Gigi, Dominique Glege, Frank Gomez-Reino Garrido, Robert Hartl, Christian Holzner, Andre Georg Masetti, Lorenzo Meijers, Franciscus Meschi, Emilio Mommsen, Remigius Nunez Barranco Fernandez, Carlos O'Dell, Vivian Orsini, Luciano Paus, Christoph Maria Ernst Petrucci, Andrea Pieri, Marco Polese, Giovanni Racz, Attila Raginel, Olivier Sakulin, Hannes Sani, Matteo Schwick, Christoph Spataru, Andrei Cristian Stoeckli, Fabian Sumorok, Konstanty |
| author_sort | Bauer, Gerry |
| collection | CERN |
| description | The CMS experiment at the LHC uses a two-stage trigger system, with events flowing from the first level trigger at a rate of 100 kHz. These events are read out by the Data Acquisition system (DAQ), assembled in memory in a farm of computers, and finally fed into the high-level trigger (HLT) software running on the farm. The HLT software selects interesting events for offline storage and analysis at a rate of a few hundred Hz. The HLT algorithms consist of sequences of offline-style reconstruction and filtering modules, executed on a farm of 0(10000) CPU cores built from commodity hardware. Experience from the 2010-2011 collider run is detailed, as well as the current architecture of the CMS HLT, and its integration with the CMS reconstruction framework and CMS DAQ. The short- and medium-term evolution of the HLT software infrastructure is discussed, with future improvements aimed at supporting extensions of the HLT computing power, and addressing remaining performance and maintenance issues. |
| id | cern-1461735 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2012 |
| record_format | invenio |
| spelling | cern-14617352019-09-30T06:29:59Zhttp://cds.cern.ch/record/1461735engBauer, GerryBehrens, UlfBranson, JamesBukowiec, Sebastian CzeslawChaze, OlivierCittolin, SergioCoarasa Perez, Jose AntonioDeldicque, ChristianDobson, MarcDupont, AymericErhan, SamimGigi, DominiqueGlege, FrankGomez-Reino Garrido, RobertHartl, ChristianHolzner, Andre GeorgMasetti, LorenzoMeijers, FranciscusMeschi, EmilioMommsen, RemigiusNunez Barranco Fernandez, CarlosO'Dell, VivianOrsini, LucianoPaus, Christoph Maria ErnstPetrucci, AndreaPieri, MarcoPolese, GiovanniRacz, AttilaRaginel, OlivierSakulin, HannesSani, MatteoSchwick, ChristophSpataru, Andrei CristianStoeckli, FabianSumorok, KonstantyRecent experience and future evolution of the CMS High Level Trigger SystemDetectors and Experimental TechniquesThe CMS experiment at the LHC uses a two-stage trigger system, with events flowing from the first level trigger at a rate of 100 kHz. These events are read out by the Data Acquisition system (DAQ), assembled in memory in a farm of computers, and finally fed into the high-level trigger (HLT) software running on the farm. The HLT software selects interesting events for offline storage and analysis at a rate of a few hundred Hz. The HLT algorithms consist of sequences of offline-style reconstruction and filtering modules, executed on a farm of 0(10000) CPU cores built from commodity hardware. Experience from the 2010-2011 collider run is detailed, as well as the current architecture of the CMS HLT, and its integration with the CMS reconstruction framework and CMS DAQ. The short- and medium-term evolution of the HLT software infrastructure is discussed, with future improvements aimed at supporting extensions of the HLT computing power, and addressing remaining performance and maintenance issues.CMS-CR-2012-167oai:cds.cern.ch:14617352012-06-28 |
| spellingShingle | Detectors and Experimental Techniques Bauer, Gerry Behrens, Ulf Branson, James Bukowiec, Sebastian Czeslaw Chaze, Olivier Cittolin, Sergio Coarasa Perez, Jose Antonio Deldicque, Christian Dobson, Marc Dupont, Aymeric Erhan, Samim Gigi, Dominique Glege, Frank Gomez-Reino Garrido, Robert Hartl, Christian Holzner, Andre Georg Masetti, Lorenzo Meijers, Franciscus Meschi, Emilio Mommsen, Remigius Nunez Barranco Fernandez, Carlos O'Dell, Vivian Orsini, Luciano Paus, Christoph Maria Ernst Petrucci, Andrea Pieri, Marco Polese, Giovanni Racz, Attila Raginel, Olivier Sakulin, Hannes Sani, Matteo Schwick, Christoph Spataru, Andrei Cristian Stoeckli, Fabian Sumorok, Konstanty Recent experience and future evolution of the CMS High Level Trigger System |
| title | Recent experience and future evolution of the CMS High Level Trigger System |
| title_full | Recent experience and future evolution of the CMS High Level Trigger System |
| title_fullStr | Recent experience and future evolution of the CMS High Level Trigger System |
| title_full_unstemmed | Recent experience and future evolution of the CMS High Level Trigger System |
| title_short | Recent experience and future evolution of the CMS High Level Trigger System |
| title_sort | recent experience and future evolution of the cms high level trigger system |
| topic | Detectors and Experimental Techniques |
| url | http://cds.cern.ch/record/1461735 |
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