### 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 language | English |
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Title of host publication | Numerical Methods and Programming |

Pages | 385-388 |

Number of pages | 4 |

Volume | 10 |

Publication status | Published - Nov 2009 |

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## Cite this

Spence, I., Scott, N. S., & Gillan, C. J. (2009). Enabling science through emerging HPC technologies: accelerating numerical quadrature using a GPU. In

*Numerical Methods and Programming*(Vol. 10, pp. 385-388) http://num-meth.srcc.msu.ru/