Accelerating the conjugate gradient algorithm with gpus in cfd simulations

Hartwig Anzt, Marc Baboulin, Jack Dongarra, Yvan Fournier, Frank Hulsemann, Amal Khabou, Yushan Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

This paper illustrates how GPU computing can be used to accelerate computational fluid dynamics (CFD) simulations. For sparse linear systems arising from finite volume discretization, we evaluate and optimize the performance of Conjugate Gradient (CG) routines designed for manycore accelerators and compare against an industrial CPU-based implementation. We also investigate how the recent advances in preconditioning, such as iterative Incomplete Cholesky (IC, as symmetric case of ILU) preconditioning, match the requirements for solving real world problems.

Original languageEnglish
Title of host publicationHigh Performance Computing for Computational Science
Subtitle of host publicationVECPAR 2016 - 12th International Conference, Revised Selected Papers
EditorsInes Dutra, Rui Camacho, Jorge Barbosa, Osni Marques
PublisherSpringer Verlag
Pages35-43
Number of pages9
ISBN (Print)9783319619811
DOIs
StatePublished - 2017
Externally publishedYes
Event12th International Conference on High Performance Computing for Computational Science, VECPAR 2016 - Porto, Portugal
Duration: Jun 28 2016Jun 30 2016

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume10150 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference12th International Conference on High Performance Computing for Computational Science, VECPAR 2016
Country/TerritoryPortugal
CityPorto
Period06/28/1606/30/16

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