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The CMS Event-Builder System for LHC Run 3 (2021-23)
/ André, Jean-Marc (Fermilab) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Brummer, Philipp (CERN ; KIT, Karlsruhe) ; Cittolin, Sergio (UC, San Diego) ; Da Silva Gomes, Diego (CERN) ; Darlea, Georgiana-Lavinia (MIT) ; Deldicque, Christian (CERN) ; Demiragli, Zeynep (MIT) ; Dobson, Marc (CERN) et al.
The data acquisition system (DAQ) of the CMS experiment at the CERN Large Hadron Collider (LHC) assembles events of 2MB at a rate of 100 kHz [...]
FERMILAB-CONF-18-657-E.
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2018. - 8 p.
Fermilab Library Server (fulltext available) - Fulltext
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2.
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A scalable online monitoring system based on Elasticsearch for distributed data acquisition in CMS
/ Andre, Jean-Marc (Fermilab) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Brummer, Philipp (CERN ; KIT, Karlsruhe) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; da Silva Gomes, Diego (CERN) ; Darlea, Georgiana-Lavinia (MIT) ; Deldicque, Christian (CERN) ; Demiragli, Zeynep (MIT) et al.
The part of the CMS Data Acquisition (DAQ) system responsible for data readout and event building is a complex network of interdependent distributed applications. To ensure successful data taking, these programs have to be constantly monitored in order to facilitate the timeliness of necessary corrections in case of any deviation from specified behaviour. [...]
2019 - 8 p.
- Published in : EPJ Web Conf. 214 (2019) 01048
Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.01048
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3.
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Operational experience with the new CMS DAQ-Expert
/ Sakulin, Hannes (CERN) ; Andre, Jean-Marc (Fermilab) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Brummer, Philipp (CERN ; KIT, Karlsruhe) ; Cittolin, Sergio (UC, San Diego) ; da Silva Gomes, Diego (CERN) ; Darlea, Georgiana-Lavinia (MIT) ; Deldicque, Christian (CERN) ; Demiragli, Zeynep (MIT) et al.
The data acquisition (DAQ) system of the Compact Muon Solenoid (CMS) at CERN reads out the detector at the level-1 trigger accept rate of 100 kHz, assembles events with a bandwidth of 200 GB/s, provides these events to the high level-trigger running on a farm of about 30k cores and records the accepted events. Comprising custom-built and cutting edge commercial hardware and several 1000 instances of software applications, the DAQ system is complex in itself and failures cannot be completely excluded. [...]
CMS-CR-2018-406.-
Geneva : CERN, 2019 - 8 p.
- Published in : EPJ Web Conf. 214 (2019) 01015
CMS Note: PDF; Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.01015
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4.
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Experience with dynamic resource provisioning of the CMS online cluster using a cloud overlay
/ Da Silva Gomes, Diego (CERN) ; Andre, Jean-Marc (Fermilab) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Brummer, Philipp (CERN ; KIT, Karlsruhe) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Darlea, Georgiana-Lavinia (MIT) ; Deldicque, Christian (CERN) ; Demiragli, Zeynep (MIT) et al.
The primary goal of the online cluster of the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) is to build event data from the detector and to select interesting collisions in the High Level Trigger (HLT) farm for offline storage. With more than 1500 nodes and a capacity of about 850 kHEPSpecInt06, the HLT machines represent similar computing capacity of all the CMS Tier1 Grid sites together. [...]
CMS-CR-2018-398; FERMILAB-CONF-19-549-CMS.-
Geneva : CERN, 2019 - 8 p.
- Published in : EPJ Web Conf. 214 (2019) 07017
CMS Note: PDF; Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.07017
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5.
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Presentation layer of CMS Online Monitoring System
/ André, Jean-Marc (Fermilab) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Brummer, Philipp (CERN ; KIT, Karlsruhe) ; Cittolin, Sergio (UC, San Diego) ; Da Silva Gomes, Diego (CERN) ; Darlea, Georgiana-Lavinia (MIT) ; Deldicque, Christian (CERN) ; Demiragli, Zeynep (MIT) ; Dobson, Marc (CERN) et al.
The Compact Muon Solenoid (CMS) is one of the experiments at the CERN Large Hadron Collider (LHC). The CMS Online Monitoring system (OMS) is an upgrade and successor to the CMS Web-Based Monitoring (WBM) system, which is an essential tool for shift crew members, detector subsystem experts, operations coordinators, and those performing physics analyses. [...]
CMS-CR-2018-390.-
Geneva : CERN, 2019 - 8 p.
- Published in : EPJ Web Conf. 214 (2019) 01044
CMS Note: PDF; Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.01044
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6.
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The CMS event-builder system for LHC run 3 (2021-23)
/ Mommsen, Remigius (Fermilab) ; André, Jean-Marc (Fermilab) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Brummer, Philipp (CERN ; KIT, Karlsruhe) ; Cittolin, Sergio (UC, San Diego) ; da Silva Gomes, Diego (CERN) ; Darlea, Georgiana-Lavinia (MIT) ; Deldicque, Christian (CERN) ; Demiragli, Zeynep (MIT) et al.
The data acquisition system (DAQ) of the CMS experiment at the CERN Large Hadron Collider (LHC) assembles events of 2 MB at a rate of100 kHz. The event builder collects event fragments from about 750 sources and assembles them into complete events which are then handed to the High-Level Trigger (HLT) processes running on $\mathcal{O}$(1000) computers. [...]
CMS-CR-2018-388.-
Geneva : CERN, 2019 - 8 p.
- Published in : EPJ Web Conf. 214 (2019) 01006
CMS Note: PDF; Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.01006
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7.
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Design and development of the DAQ and Timing Hub for CMS Phase-2
/ Andre, Jean-marc Olivier (Fermilab) ; Behrens, Ulf (DESY) ; Bocci, Andrea (CERN) ; Branson, James (UC, San Diego) ; Cittolin, Sergio (UC, San Diego) ; Da Silva Gomes, Diego (CERN) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) ; Demiragli, Zeynep (Boston U.) ; Dobson, Marc (CERN) et al.
The CMS detector will undergo a major upgrade for Phase-2 of the LHC program, starting around 2026. The upgraded Level-1 hardware trigger will select events at a rate of 750 kHz. [...]
CMS-CR-2018-307; FERMILAB-CONF-18-656-E.-
Geneva : CERN, 2019 - 7 p.
- Published in : PoS TWEPP2018 (2019) 129
Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics, Antwerp, Belgique, 17 - 21 Sep 2018, pp.129
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8.
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The CMS Data Acquisition System for the Phase-2 Upgrade
/ André, Jean-Marc (Fermilab) ; Behrens, Ulf (DESY) ; Bocci, Andrea (CERN) ; Branson, James (UC, San Diego) ; Cittolin, Sergio (UC, San Diego) ; Da Silva Gomes, Diego (CERN) ; Darlea, Georgiana-Lavinia (MIT) ; Deldicque, Christian (CERN) ; Demiragli, Zeynep (MIT) ; Dobson, Marc (CERN) et al.
During the third long shutdown of the CERN Large Hadron Collider, the CMS Detector will undergo a major upgrade to prepare for Phase-2 of the CMS physics program, starting around 2026. [...]
arXiv:1806.08975 ; FERMILAB-PUB-18-298-CMS.
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2018.
Fulltext
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9.
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The Web Based Monitoring project at the CMS experiment
/ Lopez-Perez, Juan Antonio (Fermilab) ; Maeshima, Kaori (Korea U.) ; Badgett, William (Fermilab) ; Behrens, Ulf (DESY) ; Chakaberia, Irakli (Kansas State U.) ; Jo, Youngkwon (Korea U.) ; Maruyama, Sho (Fermilab) ; Patrick, James (Fermilab) ; Rapsevicius, Valdas (Fermilab) ; Soha, Aron (Fermilab) et al.
The Compact Muon Solenoid is a large a complex general purpose experiment at the CERN Large Hadron Collider (LHC), built and maintained by many collaborators from around the world. Efficient operation of the detector requires widespread and timely access to a broad range of monitoring and status information. [...]
FERMILAB-CONF-17-063-CMS.-
2017 - 8 p.
- Published in : J. Phys.: Conf. Ser. 898 (2017) 092040
Fulltext: pdf - PDF; fermilab-conf-17-063-cms - PDF; External link: FERMILABCONF
In : 22nd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2016, San Francisco, Usa, 10 - 14 Oct 2016, pp.092040
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10.
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Web Based Monitoring in the CMS Experiment at CERN
/ Badgett, William (Fermilab) ; Borrello, Laura (Wisconsin U., Madison) ; Chakaberia, Irakli (Kansas State U.) ; Gigi, Dominique (CERN) ; Jo, Young-Kwon (Korea U.) ; Lopez-Perez, Juan Antonio (Fermilab) ; Maeshima, Kaori (Fermilab) ; Maruyama, Sho (Fermilab) ; Patrick, James (Fermilab) ; Rapsevicius, Valdas (Florida U.) et al.
The Compact Muon Solenoid (CMS) is a large and complex general purpose experiment at the CERN Large Hadron Collider (LHC), built and maintained by many collaborators from around the world. [...]
arXiv:1409.1133 ; FERMILAB-PUB-14-293-CMS.
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2014. - 22 p.
Full text - Preprint
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