Implementation and evaluation of Fock matrix calculation program on the Cell processor

Hiroaki Honda, Tetsuo Hayashi, Yuichi Inadomi, Koji Inoue, Kazuaki J. Murakami

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

Abstract

Various processor architectures have been proposed until today, and the performance has improved remarkably. Recently, the Chip Multi-processors (CMPs), which has many processor cores onto a chip, are proposed for further performance improvement. The Cell processor is one of such CMP and shows high computational performance. Although this processor is designed for the multimedia, that high performance character can be utilized to molecular orbital calculation. In this study we implemented Fock matrix construction program on the Cell processor, and evaluated computational performance. As a result, there were two kinds of main stalls by the branch prediction and the data alignment, which are controlled by software mechanism for the simplification of the Cell processor hardware. It is possible to improve the performance about 30%, if the branch prediction hit ratio could be improved to 99%. For data alignment stall, a part of stalls, which is originated by data shuffle pipeline, could be decreased by preparing hardware data alignment mechanism.

Original languageEnglish
Title of host publicationComputation in Modern Science and Engineering - Proceedings of the International Conference on Computational Methods in Science and Engineering 2007 (ICCMSE 2007)
Pages64-67
Number of pages4
Edition2
DOIs
Publication statusPublished - Dec 1 2007
EventInternational Conference on Computational Methods in Science and Engineering 2007, ICCMSE 2007 - Corfu, Greece
Duration: Sep 25 2007Sep 30 2007

Publication series

NameAIP Conference Proceedings
Number2
Volume963
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Conference on Computational Methods in Science and Engineering 2007, ICCMSE 2007
CountryGreece
CityCorfu
Period9/25/079/30/07

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Honda, H., Hayashi, T., Inadomi, Y., Inoue, K., & Murakami, K. J. (2007). Implementation and evaluation of Fock matrix calculation program on the Cell processor. In Computation in Modern Science and Engineering - Proceedings of the International Conference on Computational Methods in Science and Engineering 2007 (ICCMSE 2007) (2 ed., pp. 64-67). (AIP Conference Proceedings; Vol. 963, No. 2). https://doi.org/10.1063/1.2836167