Výsledky vyhledávání - "Tobias Weinzierl"

Akademický článek

Efficient Implementation of ADER Discontinuous Galerkin Schemes for a Scalable Hyperbolic PDE Engine

Autor: Michael Dumbser, Francesco Fambri, Maurizio Tavelli, Michael Bader, Tobias Weinzierl

Publikováno v: Axioms, Vol 7, Iss 3, p 63 (2018)

In this paper we discuss a new and very efficient implementation of high order accurate arbitrary high order schemes using derivatives discontinuous Galerkin (ADER-DG) finite element schemes on modern massively parallel supercomputers. The numerical

Externí odkaz: https://doaj.org/article/45daea5830f340c99e06dc87765303a9

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Efficient GPU Offloading with OpenMP for a Hyperbolic Finite Volume Solver on Dynamically Adaptive Meshes

Autor: Mario Wille, Tobias Weinzierl, Gonzalo Brito Gadeschi, Michael Bader

Publikováno v: Lecture Notes in Computer Science ISBN: 9783031320408
Bhatele, A. & Hammond, J. & Baboulin, M. & Kruse, C. (Eds.). High Performance Computing. ISC High Performance 2023. : Springer, pp. 65-85, Lecture Notes in Computer Science, Vol.13948

We identify and show how to overcome an OpenMP bottleneck in the administration of GPU memory. It arises for a wave equation solver on dynamically adaptive block-structured Cartesian meshes, which keeps all CPU threads busy and allows all of them to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6965d3342b14662669f711a33e37116
https://mediatum.ub.tum.de/doc/1715408/document.pdf

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Dynamic task fusion for a block-structured finite volume solver over a dynamically adaptive mesh with local time stepping

Autor: Baojiu Li, Holger Schulz, Tobias Weinzierl, Han Zhang

Publikováno v: High Performance Computing 37th International Conference, ISC High Performance 2022, Hamburg, Germany, May 29 – June 2, 2022, Proceedings. : Springer, pp. 153-173, Lecture Notes in Computer Science, Vol.13289
Lecture Notes in Computer Science ISBN: 9783031073113

Load balancing of generic wave equation solvers over dynamically adaptive meshes with local time stepping is dicult, as the load changes with every time step. Task-based programming promises to mitigate the load balancing problem. We study a Finite V

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ad0ef4b70104d3c854653d58648b624
http://dro.dur.ac.uk/36785/

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Enclave Tasking for DG Methods on Dynamically Adaptive Meshes

Autor: Tobias Weinzierl, Benjamin Hazelwood, Dominic Etienne Charrier

Publikováno v: SIAM Journal on Scientific Computing (SISC), 2020, Vol.42(3), pp.C69-C96 [Peer Reviewed Journal]

High-order discontinuous Galerkin (DG) methods promise to be an excellent discretization paradigm for hyperbolic differential equation solvers running on supercomputers, since they combine high arithmetic intensity with localized data access, since t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::162d7e1d6e92a172bfb1abcd24cbd959
https://doi.org/10.1137/19m1276194

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Spherical accretion of collisional gas in modified gravity I: self-similar solutions and a new cosmological hydrodynamical code

Autor: Han Zhang, Tobias Weinzierl, Holger Schulz, Baojiu Li

Publikováno v: Monthly Notices of the Royal Astronomical Society, 2022, Vol.515(2), pp.2464-2482 [Peer Reviewed Journal]

The spherical collapse scenario has great importance in cosmology since it captures several crucial aspects of structure formation. The presence of self-similar solutions in the Einstein-de Sitter (EdS) model greatly simplifies its analysis, making i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::faff309e6d30ca4dec6726d243939349
http://arxiv.org/abs/2203.01174

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ExCALIBUR Research Software Engineer Knowledge Integration Landscape Review

Autor: Professor Mark Parsons, Dr Alastair Basden, Professor Richard Bower, Mr Neil Chue Hong, Professor Davide Constanzo, Mr Shaun de Witt, Professor Luigi Del Debbio, Dr Glen Greed, Dr David Ham, Dr Philip Hasnip, Dr Adrian Hines, Professor Simon Hettrick, Dr Sylvain Laizet, Dr Jeyan Thiyagalingam, Professor Tobias Weinzierl, Professor Garth Wells, Professor Scott Woodley, Dr Nigel Wood

The Research Software Engineer Knowledge IntegrationLandscape Review was written by the ExCALIBUR Programme Community. It documents the concept of the Research Software Engineer (RSE) and their role in many of todays computational science projects.Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94a0575972e384a28dae7af1ea30cba1

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Stabilized asynchronous fast adaptive composite multigrid using additive damping

Autor: Tobias Weinzierl, Charles D. Murray

Publikováno v: Numerical linear algebra with applications, 2021, Vol.28(3), pp.e2328 [Peer Reviewed Journal]

Multigrid solvers face multiple challenges on parallel computers. Two fundamental ones read as follows: Multiplicative solvers issue coarse grid solves which exhibit low concurrency and many multigrid implementations suffer from an expensive coarse g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd3e3a67cd4acf22d6f282e90423f5c4
http://dro.dur.ac.uk/31587/

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Elektronická kniha

High Performance Computing. ISC High Performance 2024 International Workshops : Hamburg, Germany, May 12–16, 2024, Revised Selected Papers

Autor: Michèle Weiland, Sarah Neuwirth, Carola Kruse, Tobias Weinzierl

This book constitutes the refereed workshop proceedings from the 39th International conference on High Performance Computing, ISC High Performance 2024, held in Hamburg, Germany, in May 2024. The 34 full papers presented here were carefully reviewed

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