Pregled bibliografske jedinice broj: 713527
Performance Improvement of Algebraic Multigrid Solver by Vector Sequence Extrapolation
Performance Improvement of Algebraic Multigrid Solver by Vector Sequence Extrapolation // CFD 2007 Conference, CFD Society of Canada
Kanada, 2007. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
Performance Improvement of Algebraic Multigrid Solver by Vector Sequence Extrapolation
Autori
Jemcov, A. ; Maruszewski, J.P. ; Jasak, Hrvoje
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Skup
CFD 2007 Conference, CFD Society of Canada
Mjesto i datum
Kanada, 2007
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Algebraic Multigrid; CFD; vector extrapolated AMG
Sažetak
Algebraic Multigrid Method (AMG) performance im- provement by vector sequence extrapolation is examined. Projective Forward Extrapolation (PFE), Minimal Polynomial Extrapolation (MPE) and Reduced Rank Extrapolation (RRE) are applied to the AMG resulting in a hybrid approach, vector extrapolated AMG. The impact of vector sequence extrapolation is shown to improve performance of the AMG in number of cycles and execution time, resulting in three new methods: PFE-AMG, MPE-AMG and RRE-AMG. Computational results of the application of vector extrapolated AMG to sparse matrices arising from discretization of fluid flow equations are presented showing performance improvements compared to the traditional AMG.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
