A Scalable Parallel PWTD-Accelerated SIE Solver for Analyzing Transient Scattering from Electrically Large Objects

Yang Liu, Abdulkadir C. Yucel, Hakan Bagci, Eric Michielssen

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

A scalable parallel plane-wave time-domain (PWTD) algorithm for efficient and accurate analysis of transient scattering from electrically large objects is presented. The algorithm produces scalable communication patterns on very large numbers of processors by leveraging two mechanisms: (i) a hierarchical parallelization strategy to evenly distribute the computation and memory loads at all levels of the PWTD tree among processors, and (ii) a novel asynchronous communication scheme to reduce the cost and memory requirement of the communications between the processors. The efficiency and accuracy of the algorithm are demonstrated through its applications to the analysis of transient scattering from a perfect electrically conducting (PEC) sphere with a diameter of 70 wavelengths and a PEC square plate with a dimension of 160 wavelengths. Furthermore, the proposed algorithm is used to analyze transient fields scattered from realistic airplane and helicopter models under high frequency excitation.
Original languageEnglish (US)
Pages (from-to)663-674
Number of pages12
JournalIEEE Transactions on Antennas and Propagation
Volume64
Issue number2
DOIs
StatePublished - Dec 17 2015

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