The implementation of the upwind leapfrog scheme for 3D electromagnetic scattering on massively parallel computers | Zendy

Bach T. Nguyen | Zendy; S.A. Hutchinson | Zendy

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The implementation of the upwind leapfrog scheme for 3D electromagnetic scattering on massively parallel computers

Author(s) -

Bach T. Nguyen,

S.A. Hutchinson

Publication year - 1995

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/94009

Subject(s) - stencil , massively parallel , computer science , upwind scheme , parallel computing , overhead (engineering) , scheme (mathematics) , scaling , computational science , mathematics , geometry , mathematical analysis , discretization , operating system

The upwind leapfrog scheme for electromagnetic scattering is briefly described. Its application to the 3D Maxwell`s time domain equations is shown in detail. The scheme`s use of upwind characteristic variables and a narrow stencil result in a smaller demand in communication overhead, making it ideal for implementation on distributed memory parallel computers. The algorithm`s implementation on two message passing computers, a 1024-processor nCUBE 2 and a 1840-processor Intel Paragon, is described. Performance evaluation demonstrates that the scheme performs well with both good scaling qualities and high efficiencies on these machines

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