General purpose molecular dynamics simulations fully implemented on graphics processing units

  • Authors:
  • Joshua A. Anderson;Chris D. Lorenz;A. Travesset

  • Affiliations:
  • Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA;Materials Research Group, Engineering Division, King's College, London Strand, London WC2R 2LS, UK;Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA

  • Venue:
  • Journal of Computational Physics
  • Year:
  • 2008

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Abstract

Graphics processing units (GPUs), originally developed for rendering real-time effects in computer games, now provide unprecedented computational power for scientific applications. In this paper, we develop a general purpose molecular dynamics code that runs entirely on a single GPU. It is shown that our GPU implementation provides a performance equivalent to that of fast 30 processor core distributed memory cluster. Our results show that GPUs already provide an inexpensive alternative to such clusters and discuss implications for the future.