psort, yet another fast stable sorting software

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

  • Affiliations:
  • Università degli Studi di Padova, Italy;Università degli Studi di Padova, Italy;Università degli Studi di Padova, Italy

  • Venue:
  • Journal of Experimental Algorithmics (JEA)
  • Year:
  • 2011

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Abstract

psort is the fastest sorting software according to the PennySort benchmark, sorting 181GB of data in 2008 and 224GB in 2009 for $0.01 of computer time. This article details its internals, and the careful fitting of its architecture to the structure of modern PC-class platforms, allowing it to outperform state-of-the-art sorting software such as STXXL sort.