Efficient parallelization of the multilevel fast multipole algorithm for the solution of large-scale scattering problems

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buir.contributor.authorGürel, Levent
buir.contributor.authorErgül, Özgür
dc.citation.epage2345
dc.citation.issueNumber8
dc.citation.spage2335
dc.citation.volumeNumber56
dc.contributor.authorErgül, Özgür
dc.contributor.authorGürel, Levent
dc.date.accessioned2019-02-05T12:29:24Z
dc.date.available2019-02-05T12:29:24Z
dc.date.issued2008-08
dc.departmentComputational Electromagnetics Research Center (BiLCEM)
dc.departmentDepartment of Electrical and Electronics Engineering
dc.description.abstractWe 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 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
dc.description.sponsorshipThis work was supported in part by the Scientific and Technical Research Council of Turkey (TUBITAK) under Research Grants 105E172 and 107E136, in part by the Turkish Academy of Sciences in the framework of the Young Scientist Award Program (LG/TUBA-GEBIP/2002-1-12), and in part by contracts from ASELSAN and SSM. Computer time was provided in part by a generous allocation from Intel Corporation
dc.identifier.doi10.1109/TAP.2008.926757
dc.identifier.eissn1558-2221
dc.identifier.issn0018-926X
dc.identifier.urihttp://hdl.handle.net/11693/48887
dc.language.isoEnglish
dc.publisherInstitute of Electrical and Electronics Engineers
dc.relation.isversionofhttp://doi.org/10.1109/TAP.2008.926757
dc.source.titleIEEE Transactions on Antennas and Propagation
dc.subjectElectromagnetic scattering
dc.subjectFast solvers
dc.subjectIntegral equations
dc.subjectMultilevel fast multipole algorithm (MLFMA)
dc.subjectParallel algorithms
dc.titleEfficient parallelization of the multilevel fast multipole algorithm for the solution of large-scale scattering problems
dc.title.alternativeFast solvers
dc.typeArticle

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