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Efficient parallelization of the multilevel fast multipole algorithm for the solution of large-scale scattering problems
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Date
2008-08-01
Author
Ergül, Özgür Salih
Gurel, Levent
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We present fast and accurate solutions of large-scale scattering problems involving three-dimensional closed conductors with arbitrary shapes using the multilevel fast multipole algorithm (MLFMA). With an efficient parallelization of MLFMA, scattering problems that are discretized with tens of millions of unknowns are easily solved on a cluster of computers. We extensively investigate the parallelization of MLFMA, identify the bottlenecks, and provide remedial procedures to improve the efficiency of the implementations. The accuracy of the solutions is demonstrated on a scattering problem involving a sphere of radius 110 lambda discretized with 41 883 638 unknowns, the largest integral-equation problem solved to date. In addition to canonical problems, we also present the solution of real-life problems involving complicated targets with large dimensions.
Subject Keywords
Electrical and Electronic Engineering
URI
https://hdl.handle.net/11511/36798
Journal
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
DOI
https://doi.org/10.1109/tap.2008.926757
Collections
Department of Electrical and Electronics Engineering, Article
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Ö. S. Ergül and L. Gurel, “Efficient parallelization of the multilevel fast multipole algorithm for the solution of large-scale scattering problems,”
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
, vol. 56, no. 8, pp. 2335–2345, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36798.