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1.
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Increasing Availability by Implementing Software Redundancy in the CMS Detector Control System
/ Masetti, Lorenzo (CERN) ; Andre, Jean-Marc (Fermilab) ; Andronidis, Anastasios (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) et al.
The Detector Control System (DCS) of the Compact Muon Solenoid (CMS) experiment ran with high availability throughout the first physics data-taking period of the Large Hadron Collider (LHC). This was achieved through the consistent improvement of the control software and the provision of a 24-hour expert on-call service. [...]
2015 - 4 p.
- Published in : 10.18429/JACoW-ICALEPCS2015-WEPGF013
Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.WEPGF013
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2.
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Detector Controls Meets JEE on the Web
/ Glege, Frank (CERN) ; Andre, Jean-Marc (Fermilab) ; Andronidis, Anastasios (CERN) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego (main)) ; Chaze, Olivier (CERN) ; Cittolin, Sergio (UC, San Diego (main)) ; Darlea, Georgiana-Lavinia (MIT) ; Deldicque, Christian (CERN) ; Dobson, Marc (CERN) et al.
Remote monitoring and controls has always been an important aspect of physics detector controls since it was available. Due to the complexity of the systems, the 24/7 running requirements and limited human resources, remote access to perform interventions is essential. [...]
2015 - 4 p.
- Published in : 10.18429/JACoW-ICALEPCS2015-TUA3O01
Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.TUA3O01
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3.
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Enhancing the Detector Control System of the CMS Experiment with Object Oriented Modelling
/ Jiménez Estupiñán, Raúl (CERN) ; Andre, Jean-Marc (Fermilab) ; Andronidis, Anastasios (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) et al.
WinCC Open Architecture (WinCC OA) is used at CERN as the solution for many control system developments. This product models the process variables in structures known as data points and offers a custom procedural scripting language, called Control Language (CTRL). [...]
2015 - 4 p.
- Published in : 10.18429/JACoW-ICALEPCS2015-MOPGF025
Fulltext: PDF; External link: JACoW
In : 15th International Conference on Accelerator and Large Experimental Physics Control Systems, Melbourne, Australia, 17 - 23 Oct 2015, pp.MOPGF025
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4.
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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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5.
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Online data handling and storage at the CMS experiment
/ Andre, Jean-marc Olivier (Fermilab) ; Andronidis, Anastasios (Ioannina U.) ; Behrens, Ulf (DESY) ; Branson, James (UC, San Diego) ; Chaze, Olivier (CERN) ; Demiragli, Zeynep (MIT) ; Dobson, Marc (CERN) ; Dupont, Aymeric (CERN) ; Erhan, Samim (UCLA) ; Gigi, Dominique (CERN) et al.
During the LHC Long Shutdown 1, the CMS Data Acquisition (DAQ) system underwent a partial redesign to replace obsolete network equipment, use more homogeneous switching technologies, and support new detector back-end electronics. The software and hardware infrastructure to provide input, execute the High Level Trigger (HLT) algorithms and deal with output data transport and storage has also been redesigned to be completely file- based. [...]
CMS-CR-2015-074.-
Geneva : CERN, 2015 - 9 p.
- Published in : J. Phys.: Conf. Ser. 664 (2015) 082009
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.082009
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6.
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A New Event Builder for CMS Run II
/ Albertsson, Kim (CERN) ; 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) et al.
The data acquisition system (DAQ) of the CMS experiment at the CERN Large Hadron Collider (LHC) assembles events at a rate of 100kHz, transporting event data at an aggregate throughput of 100GB/s to the high-level trigger (HLT) farm. The DAQ system has been redesigned during the LHC shutdown in 2013/14. [...]
CMS-CR-2015-063.-
Geneva : CERN, 2015 - 9 p.
- Published in : J. Phys.: Conf. Ser. 664 (2015) 082035
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.082035
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7.
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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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8.
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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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9.
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The New CMS DAQ System for Run 2 of the LHC
/ 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.
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 100 GB/s to the high level trigger (HLT) farm. The HLT farm selects interesting events for storage and offline analysis at a rate of around 1 kHz. [...]
CMS-CR-2014-082.-
Geneva : CERN, 2015 - 7 p.
- Published in : (2014)
Fulltext: PDF; IEEE Open Access article: PDF;
In : 19th IEEE-NPSS Real-Time conference 2014, Nara, Japan, 26 - 30 May 2014, pp.1099-1103
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10.
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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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