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CERN Document Server 2,044 records found  1 - 10nextend  jump to record: Search took 0.46 seconds. 
1.
(100)
A vectorization approach for multifaceted solids in VecGeom / Apostolakis, John (CERN) ; Cosmo, Gabriele (CERN) ; Gheata, Andrei (CERN) ; Gheata, Mihaela (CERN ; Bucharest, Inst. Space Science) ; Sehgal, Raman (Bhabha Atomic Res. Ctr.) ; Wenzel, Sandro (CERN) /VecGeom team
VecGeom [1] is a multi-purpose geometry library targeting the optimisation of the 3D-solids’ algorithms used extensively in particle transport and tracking applications. The implementations of these algorithms are templated on the input data type and are vectorised based on the VecCore [2] abstraction library in case of multiple inputs in a SIMD vector. [...]
2019 - 7 p. - Published in : EPJ Web Conf. 214 (2019) 02025 Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.02025
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2.
(91)
Speeding up software with VecCore / Amadio, G (CERN) ; Canal, P (FNAL) ; Piparo, D (CERN) ; Wenzel, S (CERN)
Portable and efficient vectorization is a significant challenge in large software projects such as GeantV, ROOT, and experiments’ frameworks. Nevertheless, fully exploiting SIMD parallelism will be a required step in order to bridge the widening gap between the needs and availability of computing resouces for data analysis and processing in particle physics. [...]
2018 - 6 p. - Published in : J. Phys.: Conf. Ser. 1085 (2018) 032034 Fulltext: PDF;
In : 18th International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Seattle, WA, USA, 21 - 25 Aug 2017, pp.032034
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3.
(73)
A VecGeom navigator plugin for Geant4 / Wenzel, Sandro (CERN) ; Apostolakis, John (CERN) ; Cosmo, Gabriele (CERN)
VecGeom is a geometry modeller library with hit-detection features as needed by particle detector simulation at the LHC and beyond. It was incubated by a Geant-R&D; initiative and the motivation to combine the code of Geant4 and ROOT/TGeo into a single, better maintainable piece of software within the EU-AIDA program.So far, VecGeom is mainly used by LHC experiments as a geometry primitive library called from Geant4, where it was shown to provide 7–12% reduction in CPU time due to its faster algorithms for complex primitives [1].In this contribution, we discuss how VecGeom can be used as the navigating library in Geant4 in order to benefit from both its fast geometry primitives as well as its vectorised navigation module. [...]
2020 - 8 p. - Published in : EPJ Web Conf. 245 (2020) 02024 Fulltext from publisher: PDF;
In : 24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019, pp.02024
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4.
(70)
Comparison of random points generation on the surface of solids in GEANT4 and VecGeom / Digurov, Alexander
One of the important features of the VecGeom is the sampling of random points on the surface of solids. [...]
CERN-STUDENTS-Note-2019-063. - 2019
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5.
(64)
Accelerating navigation in the VecGeom geometry modeller / Wenzel, Sandro (CERN) ; Zhang, Yang (KIT, Karlsruhe, Dept. Inform.) /VecGeom Developers
The VecGeom geometry library is a relatively recent effort aiming to provide a modern and high performance geometry service for particle detector simulation in hierarchical detector geometries common to HEP experiments. One of its principal targets is the efficient use of vector SIMD hardware instructions to accelerate geometry calculations for single track as well as multi-track queries. [...]
2017 - 8 p. - Published in : J. Phys.: Conf. Ser. 898 (2017) 072032 Fulltext: PDF;
In : 22nd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2016, San Francisco, Usa, 10 - 14 Oct 2016, pp.072032
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6.
(62)
A VecGeom navigator plugin for Geant4 / Wenzel, S. (CERN) ; Apostolakis, J. (CERN) ; Cosmo, G. (CERN)
AIDA-2020-SLIDE-2020-028.- Geneva : CERN, 2020 Fulltext: PDF;
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7.
(57)
Current and future performance of the CMS simulation / Pedro, Kevin Jerome (Fermilab) /CMS Collaboration
The CMS full simulation using Geant4 has delivered billions of simulated events for analysis during Runs 1 and 2 of the LHC. However, the HL-LHC dataset will be an order of magnitude larger, with a similar increase in occupancy per event. [...]
CMS-CR-2018-211; FERMILAB-CONF-18-784-SCD.- Geneva : CERN, 2019 - 8 p. - Published in : EPJ Web Conf. 214 (2019) 02036 CMS Note: PDF; Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.02036
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8.
(53)
Generating Mesh Representations of VecGeom Solids / Topak, Murat
The VecGeom project aims at developing a high-performance library for geometry modelling, describing geometry in terms of 3D solid primitives. [...]
CERN-STUDENTS-Note-2019-171. - 2019
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9.
(53)
Investigation of OpenCL support in the VecGeom geometry package / Biro, Gabor (CERN)
High energy physics always needed a significant amount of computational resources, and with the upgrades of the experiments this need is still growing. [...]
CERN-STUDENTS-Note-2014-234. - 2014
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10.
(48)
VecGeom persistency using ROOT / Senacheribbe, Andrea
This project aims to create a persistency layer for VecGeom geometry objects, using ROOT I/O and genreflex tool. [...]
CERN-STUDENTS-Note-2018-092. - 2018
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