Space-time parallel computation for time-domain Maxwell's equations

Shu Wang, Zhen Peng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work addresses a growing need for the parallel-in-time simulation capability in electromagnetics (EM) applications. Currently time-dependent EM solvers are typically parallel only in space. The sequential-in-time nature of these solvers can achieve good parallel scaling when the number of spatial mesh points per core is large. But the parallel efficiency quickly deteriorates and even saturates if spatial parallelism has been fully exploited. We proposed a new time domain EM solver to harvest parallelism in both spatial and temporal dimension. The spatial parallelism is achieved by discontinuous Galerkin formulation, and the temporal parallelism is enabled by Krylov subspace method based exponential integrator. This work results in a highly scalable parallel time domain solver which can amend the scalability issue for traditional ones. The convergence and parallel performance are validated through numerical experiments.

Original languageEnglish (US)
Title of host publicationProceedings of the 2017 19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1680-1683
Number of pages4
ISBN (Electronic)9781509044511
DOIs
StatePublished - Oct 11 2017
Externally publishedYes
Event19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017 - Verona, Italy
Duration: Sep 11 2017Sep 15 2017

Publication series

NameProceedings of the 2017 19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017

Other

Other19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017
CountryItaly
CityVerona
Period9/11/179/15/17

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Instrumentation
  • Radiation

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