2-D R-matrix propagation: A large scale electron scattering simulation dominated by the multiplication of dynamically changing matrices

Laura Stitt, Stan Scott, Margaret Scott, P.G. Burke

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

3 Citations (Scopus)

Abstract

We examine the computational aspects of propagating a global R-matrix, R, across sub-regions in a 2-D plane. This problem originates in the large scale simulation of electron collisions with atoms and ions at intermediate energies. The propagation is dominated by matrix multiplications which are complicated because of the dynamic nature of R, which changes the designations of its rows and columns and grows in size as the propagation proceeds. The use of PBLAS to solve this problem on distributed memory HPC machines is the main focus of the paper.
Original languageEnglish
Title of host publicationHigh Performance Computing for Computational Science: VECPAR 2002
Pages354-367
Number of pages14
Volume2565
DOIs
Publication statusPublished - 2003

Publication series

NameLecture Notes in Computer Science
PublisherSpringer
Volume2565
ISSN (Electronic)1611-3349

ASJC Scopus subject areas

  • Computer Science(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Theoretical Computer Science

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    Stitt, L., Scott, S., Scott, M., & Burke, P. G. (2003). 2-D R-matrix propagation: A large scale electron scattering simulation dominated by the multiplication of dynamically changing matrices. In High Performance Computing for Computational Science: VECPAR 2002 (Vol. 2565, pp. 354-367). (Lecture Notes in Computer Science ; Vol. 2565). https://doi.org/10.1007/3-540-36569-9_23