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A simple spectral algorithm for solving large-scale Poisson equation in 2D
Centre de Recherche en Calcul Appliqué, CERCA, Montréal, QC, Canada.ORCID iD: 0000-0002-3982-0829
Department of Geology and Geophysics and Minnesota Supercomputer Institute, University of Minnesota, Minneapolis, MN, USA.
Centre de Recherche en Calcul Appliqué, CERCA, Montréal, QC, Canada and Département de Physique, Université de Montréal, Montréal, QC, Canada.
2003 (English)In: Computer Physics Communications, ISSN 0010-4655, E-ISSN 1879-2944, Vol. 154, no 2, 89-97 p.Article in journal (Refereed) Published
Abstract [en]

We show that it is possible with easy-to-program algorithms to reach spatial resolutions of the order of 108 grid points for computing the electric potential on 2D periodic lattices, such as the Si(111)7×7 surface. We have used a spectral Fourier technique and parallelized FFTs with OPEN_MP on SGI machines. This method can be easily extended to 3D.

Place, publisher, year, edition, pages
Elsevier, 2003. Vol. 154, no 2, 89-97 p.
Keyword [en]
Poisson equation, FFT-parallelization, OPEN_MP, crystal lattice
National Category
Condensed Matter Physics Computer Science
Identifiers
URN: urn:nbn:se:umu:diva-80816DOI: 10.1016/S0010-4655(03)00283-2ISI: 000184850500001OAI: oai:DiVA.org:umu-80816DiVA: diva2:651654
Available from: 2013-09-26 Created: 2013-09-26 Last updated: 2017-12-06Bibliographically approved

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Thibert-Plante, Xavier

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