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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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2.
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Prototype of a File-Based High-Level Trigger in CMS
/ Bauer, Gerry (MIT) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Coarasa Perez, Jose Antonio (CERN) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) ; Dobson, Marc (CERN) ; Dupont, Aymeric (CERN) et al.
The DAQ system of the CMS experiment at the LHC is upgraded during the
accelerator shutdown in 2013/14. To reduce the interdependency of the DAQ
system and the high-level trigger (HLT), we investigate the feasibility of
using a file-system-based HLT. [...]
CMS-CR-2013-380.-
Geneva : CERN, 2014 - 8 p.
- Published in : J. Phys.: Conf. Ser. 513 (2014) 012025
Fulltext: PDF;
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013, pp.012025
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A scalable monitoring for the CMS Filter Farm based on elasticsearch
/ Andre, Jean-marc Olivier (Fermilab) ; Andronidis, Anastasios (Ioannina U.) ; 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) et al.
A flexible monitoring system has been designed for the CMS File-based Filter Farm making use of modern data mining and analytics components. All the metadata and monitoring information concerning data flow and execution of the HLT are generated locally in the form of small "documents" using the JSON encoding. [...]
CMS-CR-2015-060.-
Geneva : CERN, 2015 - 9 p.
- Published in : J. Phys.: Conf. Ser. 664 (2015) 082036
Fulltext: PDF; IOP Open Access article: PDF;
In : 21st International Conference on Computing in High Energy and Nuclear Physics, Okinawa, Japan, 13 - 17 Apr 2015, pp.082036
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4.
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Flexible custom designs for CMS DAQ
/ Arcidiacono, Roberta (INFN, Turin ; Piemonte Orientale U., Novara) ; Bauer, Gerry (MIT) ; Boyer, Vincent (CERN) ; Brett, Angela Mary (Fermilab) ; Cano, Eric (CERN) ; Carboni, Andrea (INFN, Pisa) ; Ciganek, Marek (CERN) ; Cittolin, Sergio (Zurich, ETH) ; Erhan, Samim (UCLA) ; Gigi, Dominique (CERN) et al.
The CMS central DAQ system is built using commercial hardware (PCs and networking equipment), except for two components: the Front-end Readout Link (FRL) and the Fast Merger Module (FMM). The FRL interfaces the sub-detector specific front-end electronics to the central DAQ system in a uniform way. [...]
CMS-CR-2006-092.-
Geneva : CERN, 2006 - 4 p.
- Published in : Nucl. Phys. B, Proc. Suppl. 172 (2007) 174-177
Fulltext: PDF;
In : 10th Topical Seminar on Innovative Particle and Radiation Detectors, Sienna, Italy, 1 - 5 Oct 2006, pp.174-177
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5.
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Infrastructures and Monitoring of the on-line CMS computing centre
/ Bauer, Gerry (MIT) ; Behrens, Ulf (DESY) ; Biery, Kurt (Fermilab) ; Branson, James G (UC, San Diego) ; Cano, Eric (CERN) ; Cheung, Harry (Fermilab) ; Ciganek, Marek (CERN) ; Cittolin, Sergio (Zurich, ETH) ; Antonio, Jose ; Deldicque, Christian (CERN) et al.
This paper describes in detail the infrastructure and installation of the CMS on-line computing centre (CMSOLC) and its associated monitoring system. In summer 2007, 640 PCs acting as detector Readout Units for the CMS Data Acquisition System (DAQ) were deployed along with ~150 servers for DAQ general services. [...]
CMS-CR-2008-067.-
Geneva : CERN, 2008 - 6 p.
Fulltext: PDF; Published version from CERN: PDF;
In : Topical Workshop on Electronics for Particle Physics, Naxos, Greece, 15 - 19 Sep 2008, pp.450-453 (CERN-2008-008)
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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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7.
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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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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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Automating the CMS DAQ
/ Bauer, Gerry (MIT) ; Bawej, Tomasz Adrian (CERN) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Coarasa Perez, Jose Antonio (CERN) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) ; Dobson, Marc (CERN) et al.
We present the automation mechanisms that have been added to the Data Acquisition and Run Control systems of the Compact Muon Solenoid (CMS) experiment during Run 1 of the LHC, ranging from the automation of routine tasks to automatic error recovery and context-sensitive guidance to the operator. These mechanisms helped CMS to maintain a data taking efficiency above 90\% and to even improve it to 95\% towards the end of Run 1, despite an increase in the occurrence of single-event upsets in sub-detector electronics at high LHC luminosity..
CMS-CR-2013-399.-
Geneva : CERN, 2014 - 7 p.
- Published in : J. Phys.: Conf. Ser. 513 (2014) 012031
Fulltext: PDF;
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013, pp.012031
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10~Gbps TCP/IP streams from the FPGA for High Energy Physics
/ Bauer, Gerry (MIT) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego) ; Coarasa Perez, Jose Antonio (CERN) ; Darlea, Georgiana Lavinia (MIT) ; Deldicque, Christian (CERN) ; Dobson, Marc (CERN) ; Dupont, Aymeric (CERN) et al.
The DAQ system of the CMS experiment at CERN collects data from more than 600 custom detector Front-End Drivers (FEDs). During 2013 and 2014 the CMS DAQ system will undergo a major upgrade to address the obsolescence of current hardware and the requirements posed by the upgrade of the LHC accelerator and various detector components. [...]
CMS-CR-2013-402.-
Geneva : CERN, 2014 - 8 p.
- Published in : J. Phys.: Conf. Ser. 513 (2014) 012042
Fulltext: PDF;
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013, pp.012042
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