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Status of the CMS Detector Control System
/ Bauer, Gerry (MIT) ; Behrens, Ulf (DESY) ; Bouffet, Olivier (CERN) ; Bowen, Matthew (CERN) ; Branson, James G (UC, San Diego) ; Bukowiec, Sebastian (CERN) ; Ciganek, Marek (CERN) ; Cittolin, Sergio (UC, San Diego) ; Jose Antonio Coarasa (CERN) ; Deldicque, Christian (CERN) et al.
The Compact Muon Solenoid (CMS) is a CERN multi-purpose experiment that exploits the physics of the Large Hadron Collider (LHC). The Detector Control System (DCS) ensures a safe, correct and efficient experiment operation, contributing to the recording of high quality physics data. [...]
CMS-CR-2012-129.-
Geneva : CERN, 2012 - 11 p.
- Published in : J. Phys.: Conf. Ser. 396 (2012) 012023
Fulltext: PDF;
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012, pp.012023
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2.
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High availability through full redundancy of the CMS detector controls system
/ Bauer, Gerry (MIT) ; Behrens, Ulf (DESY) ; Bouffet, Olivier (CERN) ; Bowen, Matthew (CERN) ; Branson, James G (UC, San Diego) ; Bukowiec, Sebastian (CERN) ; Ciganek, Marek (CERN) ; Cittolin, Sergio (UC, San Diego) ; Jose Antonio Coarasa (CERN) ; Deldicque, Christian (CERN) et al.
The CMS detector control system (DCS) is responsible for controlling and monitoring the detector status and for the operation of all CMS sub detectors and infrastructure. This is required to ensure safe and efficient data taking so that high quality physics data can be recorded. [...]
CMS-CR-2012-128.-
Geneva : CERN, 2012 - 9 p.
- Published in : J. Phys.: Conf. Ser. 396 (2012) 012041
Fulltext: PDF;
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012, pp.012041
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3.
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The CMS Online Cluster: Setup, Operation and Maintenance of an Evolving Cluster
/ Coarasa, Jose Antonio (CERN) ; Bauer, Gerry (MIT) ; Behrens, Ulf (DESY) ; Bouffet, Olivier (CERN) ; Branson, James G (UC, San Diego) ; Bukowiec, Sebastian (CERN) ; Chaze, Olivier (CERN) ; Ciganek, Marek (CERN) ; Cittolin, Sergio (UC, San Diego) ; Deldicque, Christian (CERN) et al.
The CMS online cluster consists of more than 2700 computers running about 15000 application instances. These applications implement the necessary services to run the data acquisition of the CMS experiment. [...]
CMS-CR-2012-041.-
Geneva : CERN, 2012 - 13 p.
- Published in : PoS: ISGC 2012 (2012) , pp. 023
Fulltext: PDF; Published version from PoS: PDF;
In : International Symposium on Grids and Clouds, Taipei, Taiwan, 26 Feb - 2 Mar 2012, pp.023
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4.
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Health And Performance Monitoring Of The Online Computer Cluster Of CMS
/ Bauer, Gerry (MIT) ; Behrens, Ulf (DESY) ; Bouffet, Olivier (CERN) ; Bowen, Matthew (CERN) ; Branson, James (UC, San Diego) ; Bukowiec, Sebastian Czeslaw (CERN) ; Ciganek, Marek (CERN) ; Cittolin, Sergio (UC, San Diego) ; Coarasa Perez, Jose Antonio (CERN) ; Deldicque, Christian (CERN) et al.
The CMS experiment's online cluster consists of 2300 computers and 170 switches or routers
operating on a 24-hour basis. This huge infrastructure must be monitored in a way that the administrators
are pro-actively warned of any failures or degradation in the system, in order to avoid or minimize
downtime of the system which can lead to loss of data taking. [...]
CMS-CR-2012-158.-
Geneva : CERN, 2012 - 8 p.
- Published in : J. Phys.: Conf. Ser. 396 (2012) 042049
Fulltext: PDF;
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012, pp.042049
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5.
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A comprehensive zero-copy architecture for high performance distributed Data Acquisition over advanced network technologies for the CMS experiment
/ Bauer, Gerry (MIT) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Bukowiec, Sebastian Czeslaw (CERN) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Coarasa, J. A (CERN) ; Deldicque, Christian (CERN) ; Dobson, Marc (CERN) ; Dupont, Aymeric (CERN) et al.
This paper outlines a software architecture where zero-copy operations are used comprehensively at every processing point from the Application layer to the Physical layer. The proposed architecture is being used during feasibility studies on advanced networking technologies for the CMS experiment at CERN. [...]
2013
- Published in : IEEE Trans. Nucl. Sci. 60 (2013) 4595-4602
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6.
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A comprehensive zero-copy architecture for high performance distributed Data Acquisition over advanced network technologies for the CMS experiment
/ Bauer, Gerry (MIT) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Bukowiec, Sebastian Czeslaw (CERN) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Coarasa, J. A (CERN) ; Deldicque, Christian (CERN) ; Dobson, Marc (CERN) ; Dupont, Aymeric (CERN) et al.
This paper outlines a software architecture where zero-copy operations are used comprehensively at every processing point from the Application layer to the Physical layer. The proposed architecture is being used during feasibility studies on advanced networking technologies for the CMS experiment at CERN. [...]
CMS-CR-2012-135.-
Geneva : CERN, 2013 - 10 p.
Fulltext: PDF;
In : 18th IEEE Real-Time Conference 2012, Berkeley, California, 11 - 15 Jun 2012, pp.1-8
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7.
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Achieving High Performance with TCP over 40GbE on NUMA architectures for CMS Data Acquisition
/ Bawej, Tomasz Adrian (CERN) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) ; Dobson, Marc (CERN) ; Dupont, Aymeric (CERN) ; Erhan, Samim (UCLA) et al.
TCP and the socket abstraction have barely changed over the last two decades, but at the network layer there has been a giant leap from a few megabits to 100 gigabits in bandwidth. At the same time, CPU architectures have evolved into the multicore era and applications are expected to make full use of all available resources. [...]
CMS-CR-2014-081.-
Geneva : CERN, 2015 - 10 p.
- Published in : IEEE Trans. Nucl. Sci. 62 (2015) 1091-1098
Fulltext: PDF;
In : 19th IEEE-NPSS Real-Time conference 2014, Nara, Japan, 26 - 30 May 2014, pp.1091-1098
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8.
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Boosting Event Building Performance using Infiniband FDR for CMS Upgrade
/ Bawej, Tomasz Adrian (CERN) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) ; Dobson, Marc (CERN) ; Dupont, Aymeric (CERN) ; Erhan, Samim (UCLA) et al.
As part of the CMS upgrade during CERN long shutdown period (LS1), the CMS data acquisition system is incorporating Infiniband FDR technology to boost event building performance for operation from 2015 onwards. Infiniband promises to provide substantial increase in data transmission speeds compared to the older 1GE network used during the 2009-2013 LHC run. [...]
CMS-CR-2014-123.-
Geneva : CERN, 2014 - 10 p.
- Published in : PoS: TIPP2014 (2014) , pp. 190
Fulltext: PDF;
In : International Conference on Technology and Instrumentation in Particle Physics 2014, Amsterdam, Netherlands, 2 - 6 Jun 2014, pp.190
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9.
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The CMS High Level Trigger System: Experience and Future Development
/ Bauer, Gerry (MIT) ; Behrens, Ulf (DESY) ; Bowen, Matthew (CERN) ; Branson, James G (UC, San Diego) ; Bukowiec, Sebastian (CERN) ; Cittolin, Sergio (UC, San Diego) ; Coarasa, J A (CERN) ; Deldicque, Christian (CERN) ; Dobson, Marc (CERN) ; Dupont, Aymeric (CERN) et al.
The CMS experiment at the LHC features a two-level trigger system. Events accepted by the first level trigger, at a maximum rate of 100 kHz, are read out by the Data Acquisition system (DAQ), and subsequently assembled in memory in a farm of computers running a software high-level trigger (HLT), which selects interesting events for offline storage and analysis at a rate of order few hundred Hz. [...]
CMS-CR-2012-147.-
Geneva : CERN, 2012 - 9 p.
- Published in : J. Phys.: Conf. Ser. 396 (2012) 012008
Fulltext: PDF;
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012, pp.012008
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10.
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The Run Control and Monitoring System of the CMS Experiment
/ Bauer, Gerry (MIT) ; Boyer, Vincent (CERN) ; Branson, James G (UCLA, Los Angeles) ; Brett, Angela Mary (CERN) ; Cano, Eric (CERN) ; Carboni, Andrea (CERN) ; Ciganek, Marek (CERN) ; Cittolin, Sergio (CERN) ; O'dell, Vivian (Fermilab) ; Erhan, Samim (CERN ; UC, San Diego) et al.
The CMS experiment at the LHC at CERN will start taking data in 2008. To configure, control and
monitor the experiment during data-taking the Run Control and Monitoring System (RCMS) was
developed. [...]
CMS-CR-2007-062.-
Geneva : CERN, 2007 - 8 p.
Fulltext: PDF;
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