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High Performance Computing and Grid in Asia Pacific Region, International Conference on (2004)
Omiya Sonic City, Tokyo, Japan
July 20, 2004 to July 22, 2004
ISBN: 0-7695-2138-X
pp: 258-266
Putchong Uthayopas , Kasetsart University, Bangkok, Thailand
Kiattisak Ngiamsoongnirn , Suranaree University of Technology, Thailand
Ekachai Juntasaro , Suranaree University of Technology, Thailand
Varangrat Juntasaro , Kasetsart University, Bangkok, Thailand
ABSTRACT
The multigrid method adopted in conjunction with the parallel computing is presented. The standard multigrid doubling the mesh size in all directions, called full-coarsening technique, suffers from the partitioning of data for parallel computing. To remedy this problem, the semi-coarsening technique should be used instead. This paper is aimed to present an algorithm of the semi-coarsening multigrid technique combined with the parallel computing technique. The parallel computing technique used is the one based on the distributed memory machine. The MPI library is adopted in order to exchange the data among processors. The solver code is developed for three-dimensional turbulent flows and validated with the available experimental data.
INDEX TERMS
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CITATION
Putchong Uthayopas, Kiattisak Ngiamsoongnirn, Ekachai Juntasaro, Varangrat Juntasaro, "A Parallel Semi-Coarsening Multigrid Algorithm for Solving the Reynolds-Averaged Navier-Stokes Equations", High Performance Computing and Grid in Asia Pacific Region, International Conference on, vol. 00, no. , pp. 258-266, 2004, doi:10.1109/HPCASIA.2004.1324043
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