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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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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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3.
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Performance of the CMS Event Builder
/ Andre, Jean-Marc Olivier (Fermilab) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Brummer, Philipp Maximilian (CERN) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Contescu, Cristian (Fermilab) ; Craigs, Benjamin Gordon (CERN) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) et al.
The data acquisition system (DAQ) of the CMS experiment at the CERN Large Hadron Collider assembles events at a rate of 100 kHz, transporting event data at an aggregate throughput of to the high-level trigger farm. The DAQ architecture is based on state-of-the-art network technologies for the event building. [...]
CMS-CR-2017-034.-
Geneva : CERN, 2017 - 8 p.
- Published in : J. Phys.: Conf. Ser. 898 (2017) 032020
Fulltext: PDF; External link: IOP Open Access Article
In : 22nd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2016, San Francisco, Usa, 10 - 14 Oct 2016, pp.032020
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4.
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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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5.
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DAQExpert the service to increase CMS data-taking efficiency
/ Badaro, Gilbert (American U. of Beirut) ; Behrens, Ulf (Rice U.) ; Branson, James (UC, San Diego) ; Brummer, Philipp (CERN ; KIT, Karlsruhe) ; Cittolin, Sergio (UC, San Diego) ; Da Silva-Gomes, Diego (Fermilab ; CERN) ; Darlea, Georgiana-Lavinia (MIT) ; Deldicque, Christian (CERN) ; Dobson, Marc (CERN) ; Doualot, Nicolas (Fermilab ; CERN) et al.
The Data Acquisition (DAQ) system of the Compact Muon Solenoid (CMS) experiment at the LHC is a complex system responsible for the data readout, event building and recording of accepted events. Its proper functioning plays a critical role in the data-taking efficiency of the CMS experiment. [...]
2020 - 7 p.
- Published in : EPJ Web Conf. 245 (2020) 01028
Fulltext from publisher: PDF;
In : 24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019, pp.01028
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Upgrade of the CMS Event Builder
/ Bauer, Gerry (MIT) ; Behrens, Ulf (DESY) ; Bowen, Matthew (CERN) ; Branson, James (UC, San Diego) ; Bukowiec, Sebastian Czeslaw (CERN) ; Cittolin, Sergio (UC, San Diego) ; Perez, J A Coarasa (CERN) ; Deldicque, Christian (CERN) ; Dobson, Marc (CERN) ; Dupont, Aymeric (CERN) et al.
The Data Acquisition system of the Compact Muon Solenoid experiment at CERN assembles events at a rate of 100 kHz, transporting event data at an aggregate throughput of 100 GB/s. By the time the LHC restarts after the 2013/14 shut-down, the current computing and networking infrastructure will have reached the end of their lifetime. [...]
CMS-CR-2012-172.-
Geneva : CERN, 2012 - 9 p.
- Published in : J. Phys.: Conf. Ser. 396 (2012) 012039
Fulltext: PDF;
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012, pp.012039
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8.
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The FEROL40, a microTCA card interfacing custom point-to-point links and standard TCP/IP
/ Gigi, Dominique (CERN) ; Andre, Jean-Marc (Fermilab) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Contescu, Cristian (Fermilab) ; da Silva Gomes, Diego (CERN) ; Darlea, Georgiana-Lavinia (MIT) ; Deldicque, Christian (CERN) et al.
In order to accommodate new back-end electronics of upgraded CMS sub-detectors, a new FEROL40 card in the microTCA standard has been developed. The main function of the FEROL40 is to acquire event data over multiple point-to-point serial optical links, provide buffering, perform protocol conversion, and transmit multiple TCP/IP streams (4x10Gbps) to the Ethernet network of the aggregation layer of the CMS DAQ (data acquisition) event builder. [...]
SISSA, 2017 - 5 p.
- Published in : PoS TWEPP-17 (2017) 075
Fulltext: PDF; External link: PoS server
In : Topical Workshop on Electronics for Particle Physics, Santa Cruz, Ca, United States Of America, 11 - 15 Sep 2017, pp.075
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9.
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The Terabit/s Super-Fragment Builder and Trigger Throttling System for the Compact Muon Solenoid Experiment at CERN
/ Bauer, Gerry (MIT) ; Varela, Joao (LIP, Lisbon ; CERN) ; Boyer, Vincent (CERN) ; Branson, James (UC, San Diego) ; Brett, Angela (CERN) ; Cano, Eric (CERN) ; Carboni, Andrea (CERN) ; Ciganek, Marek (CERN) ; Cittolin, Sergio (CERN) ; Erhan, Samim (CERN ; UCLA) et al.
The Data Acquisition System of the Compact Muon Solenoid experiment at the Large Hadron Collider reads out event fragments of an average size of 2 kilobytes from around 650 detector front-ends at a rate of up to 100 kHz. The first stage of event-building is performed by the Super-Fragment Builder employing custom-built electronics and a Myrinet optical network. [...]
CMS-CR-2007-020.-
Geneva : CERN, 2007 - 7 p.
Fulltext: PDF;
In : 15th IEEE Real Time Conference 2007, Fermilab, Batavia, IL, USA, 29 Apr - 4 May 2007
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10.
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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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