1.
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The Diverse use of Clouds by CMS
/ Andronis, Anastasios (Ioannina U. ; CERN) ; Bauer, Daniela (Imperial Coll., London) ; Chaze, Olivier (CERN) ; Colling, David (Imperial Coll., London) ; Dobson, Marc (CERN) ; Fayer, Simon (Imperial Coll., London) ; Girone, Maria (CERN) ; Grandi, Claudio (INFN, Bologna) ; Huffman, Adam (Imperial Coll., London) ; Hufnagel, Dirk (Fermilab) et al.
The resources CMS is using are increasingly being offered as clouds. In Run 2 of the LHC the majority of CMS CERN resources, both in Meyrin and at the Wigner Computing Centre, will be presented as cloud resources on which CMS will have to build its own infrastructure. [...]
FERMILAB-CONF-15-625-CD.-
2015 - 8 p.
- Published in : J. Phys.: Conf. Ser. 664 (2015) 022012
IOP Open Access article: PDF; External link: FERMILABCONF
In : 21st International Conference on Computing in High Energy and Nuclear Physics, Okinawa, Japan, 13 - 17 Apr 2015, pp.022012
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Using the CMS High Level Trigger as a Cloud Resource
/ Colling, David (Imperial Coll., London) ; Huffman, Adam (Imperial Coll., London) ; McCrae, Alison (CERN) ; Lahiff, Andrew (Rutherford) ; Grandi, Claudio (INFN, Bologna) ; Cinquilli, Mattia (CERN) ; Gowdy, Stephen (CERN) ; Coarasa, Jose Antonio (CERN) ; Tiradani, Anthony (Fermilab) ; Ozga, Wojciech (CERN) et al.
The CMS High Level Trigger is a compute farm of more than 10,000 cores. During data taking this resource is heavily used and is an integral part of the experiment's triggering system. [...]
2014 - 7 p.
- Published in : J. Phys.: Conf. Ser. 513 (2014) 032019
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013, pp.032019
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4.
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Experience Building and Operating the CMS Tier-1 Computing Centres
/ Albert, M (Fermilab) ; Bakken, J (Fermilab) ; Bonacorsi, D (INFN, Bologna ; Bologna U.) ; Brew, C (Rutherford) ; Charlot, C (Ecole Polytechnique) ; Huang, Chih-Hao (Fermilab) ; Colling, D (Imperial Coll., London) ; Dumitrescu, C (Fermilab) ; Fagan, D (Fermilab) ; Fassi, F (CC, Villeurbanne) et al.
The CMS Collaboration relies on 7 globally distributed Tier-1 computing centres located at large universities and national laboratories for a second custodial copy of the CMS RAW data and primary copy of the simulated data, data serving capacity to Tier-2 centres for analysis, and the bulk of the reprocessing and event selection capacity in the experiment. The Tier-1 sites have a challenging role in CMS because they are expected to ingest and archive data from both CERN and regional Tier-2 centres, while they export data to a global mesh of Tier-2s at rates comparable to the raw export data rate from CERN. [...]
CMS-CR-2009-092.-
Geneva : CERN, 2010 - 8 p.
- Published in : J. Phys.: Conf. Ser. 219 (2010) 072035
Fulltext: PDF;
In : 17th International Conference on Computing in High Energy and Nuclear Physics, Prague, Czech Republic, 21 - 27 Mar 2009, pp.072035
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Distributed analysis in ATLAS using GANGA
/ Elmsheuser, Johannes (Munich U.) ; Brochu, Frederic (Cambridge U.) ; Cowan, Greig (Edinburgh U.) ; Egede, Ulrik (Imperial Coll., London) ; Gaidioz, Benjamin (CERN) ; Lee, Hurng-Chun (NIKHEF, Amsterdam) ; Maier, Andrew (CERN) ; Moscicki, Jakub (CERN) ; Pajchel, Katarina (Oslo U.) ; Reece, Will (Imperial Coll., London) et al.
2010 - 6 p.
In : 17th International Conference on Computing in High Energy and Nuclear Physics, Prague, Czech Republic, 21 - 27 Mar 2009, pp.072002
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CMS Analysis Operations
/ Andreeva, J (CERN) ; Calloni, Marco (INFN, Milan Bicocca) ; Colling, David (Imperial Coll., London) ; Fanzago, Federica (INFN, Padua) ; D'Hondt, Jorgen (Vrije U., Brussels) ; Klem, Jukka (Helsinki Inst. of Phys.) ; Maier, Gerhild (CERN) ; Letts, James (UC, San Diego) ; Maes, Joris (Antwerp U.) ; Padhi, Sanjay (UC, San Diego) et al.
During normal data taking CMS expects to support potentially as many as
2000 analysis users. Since the beginning of 2008 there have been more
than 800 individuals who submitted a remote analysis job to the CMS
computing infrastructure. [...]
CMS-CR-2009-088.-
Geneva : CERN, 2010 - 11 p.
- Published in : J. Phys.: Conf. Ser. 219 (2010) 072007
Fulltext: PDF;
In : 17th International Conference on Computing in High Energy and Nuclear Physics, Prague, Czech Republic, 21 - 27 Mar 2009, pp.072001
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