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On the Efficiency of Simulation Methods for the Boltzmann Equation on Parallel Computers

  • The paper presents a parallelization technique for the finite pointset method, a numerical method for rarefied gas flows.; First we give a short introduction to the Boltzmann equation, which describes the behaviour of rarefied gas flows. The basic ideas of the finite pointset method are presented and a strategy to parallelize the algorithm will be explained. It is shown that a static processor partition leads to an insufficient load-balance of the processors. Therefore an optimized parallelization technique based on an adaptive processor partition will be introduced, which improves the efficiency of the simulation code over the whole region of interesting flow situation. Finally we present a comparison of the CPU-times between a parallel computer and a vector computer.

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Author:Jens Struckmeier, Franz-Josef Pfreundt
URN (permanent link):urn:nbn:de:hbz:386-kluedo-6660
Serie (Series number):Berichte der Arbeitsgruppe Technomathematik (AGTM Report) (61)
Document Type:Preprint
Language of publication:English
Year of Completion:1991
Year of Publication:1991
Publishing Institute:Technische Universität Kaiserslautern
Date of the Publication (Server):2000/07/09
Faculties / Organisational entities:Fachbereich Mathematik
DDC-Cassification:5 Naturwissenschaften und Mathematik / 510 Mathematik
Licence (German):Standard gemäß KLUEDO-Leitlinien vor dem 27.05.2011