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Parallel Preconditioned Iterative Solvers for Real and Complex Block-Structured CFD Problems

Basermann, Achim and 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), 24.-26. Feb. 2010, Seattle, Washington, USA.

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Abstract

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.

Item URL in elib:https://elib.dlr.de/61621/
Document Type:Conference or Workshop Item (Poster)
Title:Parallel Preconditioned Iterative Solvers for Real and Complex Block-Structured CFD Problems
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Basermann, AchimDLR-KP, SC-VSSUNSPECIFIED
Kersken, Hans-PeterDLR-KP, SC-VSSUNSPECIFIED
Date:25 February 2010
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Parallel processing; preconditioning; iterative solvers; CFD; complex arithmetics; block-structured problems
Event Title:SIAM Conference on Parallel Processing for Scientific Computing (PP10)
Event Location:Seattle, Washington, USA
Event Type:international Conference
Event Dates:24.-26. Feb. 2010
Organizer:The Society for Industrial and Applied Mathematics (SIAM)
HGF - Research field:Aeronautics, Space and Transport, Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics, Space (old)
HGF - Program Themes:Propulsion Systems (old), W SY - Technik für Raumfahrtsysteme
DLR - Research area:Aeronautics, Space
DLR - Program:L ER - Engine Research, W SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):L - Virtual Engine and Validation Methods (old), W - Vorhaben SISTEC (old)
Location: Köln-Porz
Institutes and Institutions:Institut of Simulation and Software Technology
Institut of Simulation and Software Technology > Distributed Systems and Component Software
Deposited By: Basermann, Dr.-Ing. Achim
Deposited On:21 Jul 2010 09:39
Last Modified:31 Jul 2019 19:26

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