Enabling science through emerging HPC technologies: accelerating numerical quadrature using a GPU

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

Abstract

The R-matrix method when applied to the study of intermediate energy electron scattering by the hydrogen atom gives rise to a large number of two electron integrals between numerical basis functions. Each integral is evaluated independently of the others, thereby rendering this a prime candidate for a parallel implementation. In this paper, we present a parallel implementation of this routine which uses a Graphical Processing Unit as a co-processor, giving a speedup of approximately 20 times when compared with a sequential version. We briefly consider properties of this calculation which make a GPU implementation appropriate with a view to identifying other calculations which might similarly benet.
Original languageEnglish
Title of host publicationNumerical Methods and Programming
Pages385-388
Number of pages4
Volume10
Publication statusPublished - Nov 2009

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