psort, Yet Another Fast Stable Sorting Software

  • Authors:
  • Paolo Bertasi;Marco Bressan;Enoch Peserico

  • Affiliations:
  • Dipartimento di Ingegneria dell'Informazione, Università degli Studi di Padova, Italy;Dipartimento di Ingegneria dell'Informazione, Università degli Studi di Padova, Italy;Dipartimento di Ingegneria dell'Informazione, Università degli Studi di Padova, Italy

  • Venue:
  • SEA '09 Proceedings of the 8th International Symposium on Experimental Algorithms
  • Year:
  • 2009

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Abstract

psort was the fastest sorting software in 2008 according to the Pennysort benchmark, sorting 181GB of data for 0.01$ of computer time. This paper details its internals, and the careful fitting of its architecture to the structure of modern PCs-class platforms, allowing it to outperform state-of-the-art sorting software such as GNUsort or STXXL .