Solution of large electromagnetic problems made feasible by HPC - Reducing execution times from months to hours

Marsh, A; Kaklamani, DI

dc.contributor.author	Marsh, A	en
dc.contributor.author	Kaklamani, DI	en
dc.date.accessioned	2014-03-01T01:11:29Z
dc.date.available	2014-03-01T01:11:29Z
dc.date.issued	1995	en
dc.identifier.issn	0302-9743	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11663
dc.subject	Electromagnetic Scattering	en
dc.subject	High Performance Computer	en
dc.subject	Integral Equation	en
dc.subject	Parallel Computer	en
dc.subject	Method of Moment	en
dc.subject.classification	Computer Science, Theory & Methods	en
dc.subject.other	GRADIENT FFT METHOD	en
dc.subject.other	PLATE PROBLEMS	en
dc.subject.other	SCATTERING	en
dc.subject.other	EXPANSIONS	en
dc.title	Solution of large electromagnetic problems made feasible by HPC - Reducing execution times from months to hours	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BFb0046644	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BFb0046644	en
heal.language	English	en
heal.publicationDate	1995	en
heal.abstract	There are two major advantages of applying High Performance Computing (HPC) to electromagnetic problems. Firstly, to reduce execution times of a given size of problem from days/hours to minutes/seconds. Secondly, the purpose of this paper, to investigate problems, that were so computationally expense, that they were practically ''unsolvable''. Pioneering research work in such areas becomes an arduous tedious endeavour. However, HPC now provides the computational power necessary to solve these large electromagnetic problems. Parallel computations of an integral equation technique, in conjunction with a method of moments (MoM) is introduced, in examining electromagnetic illumination of electrically large planar scatterers. To this end, the electromagnetic scattering of an incident wave illuminating an electrically large conducting rectangular plate of infinitesimal thickness is analysed. An integral equation is derived, in terms of the conductivity currents induced on the plate surface, which is solved by employing entire domain Galerkin technique, with Chebyshev type basis functions. The resulting algorithm parallelisation enables extension of the proposed methodology above the resonance region. Numerical results are computed for several scatterer sizes and excitation source types, with impressive near-linear speedups.	en
heal.publisher	SPRINGER-VERLAG BERLIN	en
heal.journalName	HIGH-PERFORMANCE COMPUTING AND NETWORKING	en
heal.bookName	LECTURE NOTES IN COMPUTER SCIENCE	en
dc.identifier.doi	10.1007/BFb0046644	en
dc.identifier.isi	ISI:A1995BE66H00044	en
dc.identifier.volume	919	en
dc.identifier.spage	300	en
dc.identifier.epage	305	en