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A comparison of the performance of the finite difference time-domain, finite element time-domain, and planar generalized Yee algorithms of high-performance parallel computers

✍ Scribed by Stephen D. Gedney; Umesh Navsariwala

Publisher: John Wiley and Sons
Year: 1995
Tongue: English
Weight: 814 KB
Volume: 8
Category: Article
ISSN: 0894-3370
DOI: 10.1002/jnm.1660080311

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✦ Synopsis

Parallel algorithms for the finite difference time-domain (FDTD), the planar generalized Yee (PGY), and the finite element time-domain (FETD) methods are presented. The FDTD and the PGY algorithms are both explicit time-domain solutions of Maxwell's equations, while the PGY algorithm is based on an unstructured grid. The FETD algorithm is a semi-implicit solution of Maxwell's equations using variational principles, and thus requires a matrix inversion for every time iteration. The three parallel algorithms are based on spatial decompositions of the discrete three-dimensional problem spaces. A comparative analysis of the parallel algorithms is presented based on their memory and computational efficiency as well as their parallel efficiency.

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