Basermann, Achim und Kersken, Hans-Peter (2010) Parallel Preconditioned Iterative Solvers for Real and Complex Block-Structured CFD Problems. SIAM Conference on Parallel Processing for Scientific Computing (PP10), 2010-02-24 - 2010-02-26, Seattle, Washington, USA.
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Kurzfassung
At the Institute for Propulsion Technology of the German Aerospace Center (DLR), the parallel simulation system TRACE (Turbo-machinery Research Aerodynamic Computational Environment) has been developed specifically for the calculation of internal turbo-machinery flows. The finite volume approach with block-structured grids requires the parallel, iterative solution of large, sparse real and complex systems of linear equations. For convergence acceleration of the iteration, adequate parallel preconditioners for real and complex matrix problems have been investigated. Special focus was put on the possibility of a matrix-free implementation of the preconditioned solvers. Numerical and performance results of these methods will be presented for typical TRACE problems on multi-core architectures together with an analysis of the pros and cons of the complex problem formulation, e.g. regarding the ratio of calculation operations to memory accesses.
elib-URL des Eintrags: | https://elib.dlr.de/61621/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Poster) | ||||||||||||
Titel: | Parallel Preconditioned Iterative Solvers for Real and Complex Block-Structured CFD Problems | ||||||||||||
Autoren: |
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Datum: | 25 Februar 2010 | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Nein | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | Parallel processing; preconditioning; iterative solvers; CFD; complex arithmetics; block-structured problems | ||||||||||||
Veranstaltungstitel: | SIAM Conference on Parallel Processing for Scientific Computing (PP10) | ||||||||||||
Veranstaltungsort: | Seattle, Washington, USA | ||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||
Veranstaltungsbeginn: | 24 Februar 2010 | ||||||||||||
Veranstaltungsende: | 26 Februar 2010 | ||||||||||||
Veranstalter : | The Society for Industrial and Applied Mathematics (SIAM) | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr, Verkehr und Weltraum (alt) | ||||||||||||
HGF - Programm: | Luftfahrt, Weltraum (alt) | ||||||||||||
HGF - Programmthema: | Antriebe (alt), W SY - Technik für Raumfahrtsysteme | ||||||||||||
DLR - Schwerpunkt: | Luftfahrt, Weltraum | ||||||||||||
DLR - Forschungsgebiet: | L ER - Antriebsforschung, W SY - Technik für Raumfahrtsysteme | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Virtuelles Triebwerk und Validierungsmethoden (alt), W - Vorhaben SISTEC (alt) | ||||||||||||
Standort: | Köln-Porz | ||||||||||||
Institute & Einrichtungen: | Institut für Simulations- und Softwaretechnik Institut für Simulations- und Softwaretechnik > Verteilte Systeme und Komponentensoftware | ||||||||||||
Hinterlegt von: | Basermann, Dr.-Ing. Achim | ||||||||||||
Hinterlegt am: | 21 Jul 2010 09:39 | ||||||||||||
Letzte Änderung: | 24 Apr 2024 19:26 |
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