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