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1.
Performance of Heterogeneous Algorithm Scheduling in CMSSW / Bocci, Andrea (CERN) ; Jones, Christopher Duncan (Fermilab) ; Kortelainen, Matti Johannes (Fermilab) /CMS Collaboration
The CMS experiment started to utilize Graphics Processing Units (GPU) to accelerate the online reconstruction and event selection running on its High Level Trigger (HLT) farm in the 2022 data taking period. The projections of the HLT farm to the High-Luminosity LHC foresee a significant use of compute accelerators in the LHC Run 4 and onwards in order to keep the cost, size, and power budget of the farm under control. [...]
CMS-CR-2023-132.- Geneva : CERN, 2024 - 8 p. - Published in : EPJ Web Conf. 295 (2024) 11017 Fulltext: PDF;
In : 26th International Conference on Computing in High Energy & Nuclear Physics, Norfolk, Virginia, Us, 8 - 12 May 2023
2.
Development of the CMS detector for the CERN LHC Run 3 / CMS Collaboration
Since the initial data taking of the CERN LHC, the CMS experiment has undergone substantial upgrades and improvements. This paper discusses the CMS detector as it is configured for the third data-taking period of the CERN LHC, Run 3, which started in 2022. [...]
arXiv:2309.05466; CMS-PRF-21-001; CERN-EP-2023-136; CMS-PRF-21-001-003.- Geneva : CERN, 2024-05-23 - 257 p. - Published in : JINST 19 (2024) P05064 Fulltext: PDF; Fulltext from Publisher: PDF; External links: Additional information for the analysis; CMS AuthorList
In : The Large Hadron Collider and The Experiments for Run 3
3.
Stitched Together Transitioning CMS to a Hierarchical Threaded Framework / Jones, Christopher Duncan (Fermilab) ; Sexton-Kennedy, Elizabeth (Fermilab) /CMS Collaboration
Modern computing hardware is transitioning from using a single high frequency complicated computing core to many lower frequency simpler cores. As part of that transition, hardware manufacturers are urging developers to exploit concurrency in their programs via operating system threads. [...]
CMS-CR-2013-393.- Geneva : CERN, 2013 - p. Fulltext: PDF;
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013
4.
Using OpenMP for HEP Framework Algorithm Scheduling / Jones, Christopher Duncan (Fermilab) /CMS Collaboration
The OpenMP standard is the primary mechanism used at high performance computing facilities to allow intra-process parallelization. In contrast, many HEP specific software packages (such as CMSSW, GaudiHive, and ROOT) make use of Intels Threading Building Blocks (TBB) library to accomplish the same goal. [...]
CMS-CR-2020-060.- Geneva : CERN, 2020 - 8 p. Fulltext: PDF;
In : 24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019
5.
Implementing Concurrent Non-Event Transitions in CMS / Jones, Christopher Duncan (Fermilab) /CMS Collaboration
Since the beginning of the LHC Run 2 in 2016 the CMS data processing framework, CMSSW, has been running with multiple threads during production of data and simulation via the use of Intels Thread Building Blocks (TBB) library. The TBB library utilizes tasks as concurrent units of work. [...]
CMS-CR-2018-277; FERMILAB-CONF-19-071-CD-CMS.- Geneva : CERN, 2018 - 7 p. Fulltext: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018
6.
CMS event processing multi-core efficiency status / Jones, C D (Fermilab) /CMS
In 2015, CMS was the first LHC experiment to begin using a multi-threaded framework for doing event processing. This new framework utilizes Intel’s Thread Building Block library to manage concurrency via a task based processing model. [...]
2017 - 7 p. - Published in : J. Phys.: Conf. Ser. 898 (2017) 042008 Fulltext: PDF;
In : 22nd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2016, San Francisco, Usa, 10 - 14 Oct 2016, pp.042008
7.
Using the CMS Threaded Framework In A Production Environment / Jones, C D (Fermilab) ; Contreras, L (Fermilab) ; Gartung, P (Fermilab) ; Hufnagel, D (Fermilab) ; Sexton-Kennedy, L (Fermilab) /CMS
During 2014, the CMS Offline and Computing Organization completed the necessary changes to use the CMS threaded framework in the full production environment. We will briefly discuss the design of the CMS Threaded Framework, in particular how the design affects scaling performance. [...]
2015 - 7 p. - Published in : J. Phys.: Conf. Ser. 664 (2015) 072026 IOP Open Access article: PDF;
In : 21st International Conference on Computing in High Energy and Nuclear Physics, Okinawa, Japan, 13 - 17 Apr 2015, pp.072026
8.
Stitched Together: Transitioning CMS to a Hierarchical Threaded Framework / Jones, C D (Fermilab) ; Sexton-Kennedy, E (Fermilab)
Modern computing hardware is transitioning from using a single high frequency complicated computing core to many lower frequency simpler cores. As part of that transition, hardware manufacturers are urging developers to exploit concurrency in their programs via operating system threads. [...]
2014 - 7 p. - Published in : J. Phys.: Conf. Ser. 513 (2014) 022034
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013, pp.022034
9.
Explorations of the Viability of ARM and Xeon Phi for Physics Processing / Abdurachmanov, David (Vilnius U.) ; Arya, Kapil (Northeastern U., Comp. Sci. Coll.) ; Bendavid, Josh (CERN) ; Boccali, Tommaso (INFN, Pisa ; Pisa, Scuola Normale Superiore ; Pisa U.) ; Cooperman, Gene (Northeastern U., Comp. Sci. Coll. ; Northeastern U.) ; Dotti, Andrea (SLAC ; CERN ; INFN, Pisa ; Pisa U.) ; Elmer, Peter (Princeton U. ; Wisconsin U., Madison) ; Eulisse, Giulio (Fermilab) ; Giacomini, Francesco (INFN, CNAF) ; Jones, Christopher D. (Fermilab ; Cambridge U.) et al.
We report on our investigations into the viability of the ARM processor and the Intel Xeon Phi co-processor for scientific computing. We describe our experience porting software to these processors and running benchmarks using real physics applications to explore the potential of these processors for production physics processing..
arXiv:1311.1001.- 2014 - 7 p. - Published in : J. Phys.: Conf. Ser. 513 (2014) 052008 Fulltext: arXiv:1311.1001 - PDF; fermilab-conf-14-057-cms - PDF; fermilab-conf-14-056-cms - PDF; External link: FERMILABCONF
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013, pp.052008
10.
A New Boson with a Mass of 125 GeV Observed with the CMS Experiment at the Large Hadron Collider / CMS Collaboration
The Higgs boson was postulated nearly five decades ago within the framework of the standard model of particle physics and has been the subject of numerous searches at accelerators around the world. Its discovery would verify the existence of a complex scalar field thought to give mass to three of the carriers of the electroweak force—the W+, W–, and Z0 bosons—as well as to the fundamental quarks and leptons. [...]
Geneva : CERN, 2012 - 16 p. - Published in : Science 338 (2012) 1569-1575 Preprint: PDF; External link: Supplementary material
In : Breakthrough of the year

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