Fast quasi double-precision method with single-precision hardware to accelerate scientific applications

Tetsu Narumi, Tsuyoshi Hamada, Keigo Nitadori, Ryuji Sakamaki, Kenji Yasuoka

Research output: Contribution to journalArticle

Abstract

The recent commodity hardware, such as the Cell processor in PLAYSTATION 3 or GeForce GTX280 GPU, has much more peak performance in single-precision than that of CPU of PCs, while the double-precision performance of these computers is comparable to it. Even though a quasi double-precision method achieves comparable accuracy to double-precision, the performance of it is relatively low. In this paper, the quasi double-precision method is modified, and it can deliver more performance than that by native double-precision of the GPU. Calculation of a Mandelbrot set and molecular dynamics (MD) simulation are used to test the method.

Original languageEnglish
Pages (from-to)561-581
Number of pages21
JournalInternational Journal of Computational Methods
Volume8
Issue number3
DOIs
Publication statusPublished - 2011 Sep 1

Keywords

  • Mixed-precision method
  • graphics processing unit
  • molecular dynamics simulation
  • quasi double-precision method

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Computational Mathematics

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