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1.
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The ATLAS Data Acquisition and High Level Trigger system
/ Abolins, M (Michigan State U.) ; Abreu, R (CERN) ; Achenbach, R (Kirchhoff Inst. Phys.) ; Aharrouche, M (Mainz U., Inst. Phys.) ; Aielli, G (INFN, Rome ; Rome U., Tor Vergata) ; Al-Shabibi, A (CERN) ; Aleksandrov, I (Dubna, JINR) ; Alexandrov, E (Dubna, JINR) ; Allbrooke, B M (Birmingham U.) ; Aloisio, A (INFN, Naples ; Naples U.) et al.
/ATLAS TDAQ
This paper describes the data acquisition and high level trigger system of the ATLAS experiment at the Large Hadron Collider at CERN, as deployed during Run 1. Data flow as well as control, configuration and monitoring aspects are addressed. [...]
2016 - 153 p.
- Published in : JINST 11 (2016) P06008
IOP Open Access article: PDF;
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2.
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IT Infrastructure Design and Implementation Considerations for the ATLAS TDAQ System
/ Dobson, M (UC, Irvine) ; Unel, G (UC, Irvine) ; Caramarcu, C (Bucharest, IFIN-HH) ; Dumitru, I (Bucharest, Polytechnic Inst.) ; Valsan, L (Bucharest, Polytechnic Inst.) ; Darlea, G L (Bucharest, Polytechnic Inst.) ; Bujor, F (Bucharest, Polytechnic Inst.) ; Bogdanchikov, A G (Novosibirsk, IYF) ; Korol, A A (Novosibirsk, IYF) ; Zaytsev, A S (Novosibirsk, IYF) et al.
This paper gives a thorough overview of the ATLAS TDAQ SysAdmin group activities which deals with administration of the TDAQ computing environment supporting Front End detector hardware, Data Flow, Event Filter and other subsystems of the ATLAS detector operating on the LHC accelerator at CERN. [...]
ATL-DAQ-PROC-2013-048.
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2013. - 4 p.
Original Communication (restricted to ATLAS) - Full text
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3.
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Centralized configuration system for a large scale farm of network booted computers
/ Ballestrero, S (Johannesburg U. ; CERN) ; Brasolin, F (INFN, Bologna) ; Darlea, G-L (Bucharest, Polytechnic Inst. ; CERN) ; Dumitru, I (Bucharest, Polytechnic Inst.) ; Scannicchio, D A (UC, Irvine) ; Twomey, M S (Washington U. ; CERN) ; Valsan, M L (CERN) ; Zaytsev, A (Novosibirsk, IYF)
In the ATLAS Online computing farm, the majority of the systems are network booted - they run an operating system image provided via network by a Local File Server. [...]
ATL-DAQ-PROC-2012-026.
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2012. - 5 p.
Original Communication (restricted to ATLAS) - Full text
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4.
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Tools and strategies to monitor the ATLAS online computing farm
/ Ballestrero, S (Johannesburg U. ; CERN) ; Brasolin, F (INFN, Bologna) ; Darlea, G L (Bucharest, Polytechnic Inst. ; CERN) ; Dumitru, I (Bucharest, Polytechnic Inst.) ; Scannicchio, D A (UC, Irvine) ; Twomey, M S (Washington U. ; CERN) ; Valsan, M L (CERN) ; Zaytsev, A (Novosibirsk, IYF)
In the ATLAS experiment the collection, processing, selection and conveyance of event data from the detector front-end electronics to mass storage is performed by the ATLAS online farm consisting of nearly 3000 PCs with various characteristics. [...]
ATL-DAQ-PROC-2012-014.
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2012. - 7 p.
Original Communication (restricted to ATLAS) - Full text
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5.
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Upgrade and integration of the configuration and monitoring tools for the ATLAS Online farm
/ Ballestrero, S (Johannesburg U. ; CERN) ; Brasolin, F (INFN, Bologna) ; Darlea, G L (Bucharest, Polytechnic Inst. ; CERN) ; Dumitru, I (Bucharest, Polytechnic Inst.) ; Scannicchio, DA (UC, Irvine) ; Twomey, M S (Washington U. ; CERN) ; Valsan, M L (CERN) ; Zaytsev, A (Novosibirsk, IYF)
The ATLAS Online farm is a non-homogeneous cluster of nearly 3000 PCs which run the data acquisition, trigger and control of the ATLAS detector. [...]
ATL-DAQ-PROC-2012-005.
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2012. - 8 p.
Original Communication (restricted to ATLAS) - Full text
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6.
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Tools and strategies to monitor the ATLAS online computing farm
/ Ballestrero, S (CERN and University of Johannesburg) ; Brasolin, F (INFN Sezione di Bologna) ; Darlea, G L (CERN and Politehnica University of Bucharest) ; Dumitru, I (Politehnica University of Bucharest) ; Scannicchio, DA (University of California - Irvine) ; Twomey, M S (CERN and University of Washington) ; Valsan, M L (CERN) ; Zaytsev, A (Russian Acad. Sci. - Siberian Division)
In the ATLAS experiment the collection, processing, selection and conveyance of event data from the detector front-end electronics to mass storage is performed by the ATLAS online farm consisting of nearly 3000 PCs with various characteristics. To assure the correct and optimal working conditions the whole online system must be constantly monitored. [...]
ATL-DAQ-SLIDE-2012-239.-
Geneva : CERN, 2012 - 1 p.
Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012
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7.
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Centralized configuration system for a large scale farm of network booted computers
/ Ballestrero, S (CERN and University of Johannesburg) ; Brasolin, F (INFN Sezione di Bologna) ; Darlea, G L (CERN and Politehnica University of Bucharest) ; Dumitru, I (Politehnica University of Bucharest) ; Scannicchio, DA (University of California - Irvine) ; Twomey, M S (CERN and University of Washington) ; Valsan, M L (CERN) ; Zaytsev, A (Russian Acad. Sci. - Siberian Division)
In the ATLAS Online computing farm, the majority of the systems are network booted - they run an operating system image provided via network by a Local File Server. This method guarantees the uniformity of the farm and allows very fast recovery in case of issues to the local scratch disks. [...]
ATL-DAQ-SLIDE-2012-220.-
Geneva : CERN, 2012 - 1 p.
Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012
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8.
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Upgrade and integration of the configuration and monitoring tools for the ATLAS Online farm
/ Ballestrero, S (CERN and University of Johannesburg) ; Brasolin, F (INFN Sezione di Bologna) ; Darlea, G L (CERN and Politehnica University of Bucharest) ; Dumitru, I (Politehnica University of Bucharest) ; Scannicchio, DA (University of California - Irvine) ; Twomey, M S (CERN and University of Washington) ; Valsan, M L (CERN) ; Zaytsev, A (Russian Acad. Sci. - Siberian Division)
The ATLAS Online farm is a non-homogeneous cluster of nearly 3000 PCs which run the data acquisition, trigger and control of the ATLAS detector. The systems are configured and monitored by a combination of open-source tools, such as Quattor and Nagios, and tools developed in-house, such as ConfDB. [...]
ATL-DAQ-SLIDE-2012-193.-
Geneva : CERN, 2012 - 1 p.
Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012
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9.
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The ATLAS Trigger/DAQ Authorlist
/ Abolins, M ; Abreu, R ; Achenbach, R ; Aharrouche, M ; Aielli, G ; Al-Shabibi, A ; Aleksandrov, I ; Alexandrov, E ; Allbroke, B M ; Aloisio, A et al.
This is the ATLAS Trigger/DAQ Authorlist, version 11.09 (September 28, 2011)..
ATL-DAQ-PUB-2011-002.
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2011. - 5 p.
Original Communication (restricted to ATLAS) - Full text
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10.
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Role Based Access Control system in the ATLAS experiment
/ Valsan, M L (Bucharest, Polytechnic Inst.) ; Dobson, M (CERN) ; Lehmann Miotto, G (CERN) ; Scannicchio, D A (UC, Irvine) ; Schlenker, S (CERN) ; Filimonov, V (St. Petersburg, INP) ; Khomoutnikov, V (St. Petersburg, INP) ; Dumitru, I (Bucharest, Polytechnic Inst.) ; Zaytsev, A S (Novosibirsk, IYF) ; Korol, A A (Novosibirsk, IYF) et al.
The complexity of the ATLAS experiment motivated the deployment of an integrated Access Control System in order to guarantee safe and optimal access for a large number of users to the various software and hardware resources. [...]
ATL-DAQ-PROC-2011-005.
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2011. - 6 p.
Original Communication (restricted to ATLAS) - Full text
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