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ISSN 961-91393-0-5
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 Year 1997
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632 pages
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Volume price - $192.00
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PARALLELIZATION OF THE FINITE VOLUME METHOD
Joao Goncalves
Instituto Superior Tecnico, Technical University of Lisbon, Mechanical Engineering Department, Av. Rovisco Pais, 1096 Lisboa Codex, Portugal
Pedro J. Coelho
Instituto Superior Técnico, Mechanical Engineering Department, Technical University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
ABSTRACT
Two different parallelization strategies of the finite volume method (FVM) are described and applied to two test problems. One of the methods is based on angular decomposition and the other one is based on spatial decomposition. In the first case each processor performs the calculations for the whole domain but only deals with a few directions, while in the second case each processor treats all the directions but only for a subdomain. It is shown that the number of iterations is independent of the number of processors in the first parallelization strategy, but increases with the number of processors in the second case. Consequently, higher efficiencies are achievable using the angular decomposition approach. The influence of the angular discretization, grid size and optical thickness of the medium is also investigated.
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