A Parallel Implementation of Dual-Pivot Quick Sort for Computers with Small Number of Processors

  • Mohammad F. J. Klaib Taibah University
  • Mutaz Rasmi Abu Sara Taibah University
  • Masud Hasan Taibah University
https://doi.org/10.34818/INDOJC.2020.5.2.487
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Abstract

Sorting algorithms are heavily used. Quicksort is one of the fastest comparison-based sorting algorithms. These days almost all computing devices have multiple processors. There is a strong need of finding efficient parallel versions of the most common algorithms that are widely used. The basic version of quick sort is sequential and uses only one pivot.  Recently, Yaroslavsky has proposed a modified version of the quick sort that uses two pivots and runs much faster than the single-pivot quick sort. Since then Java has incorporated this dual-pivot quick sort into its standard library for sorting. Although there are many parallel versions of the original single-pivot quick sort, there is a very few for the dual-pivot. Those few parallel versions of the dual-pivot quick sorts are compared with standard sort functions, rather than the dual-pivot quick sort itself. In this paper, we provide a parallel version of the dual-pivot quick sort algorithm of Yaroslavsky and implement it in Java. For comparison, we run both in small number of parallel processors. The experimental results show that our algorithm runs significantly faster than the Yaroslavsky’s algorithm. Moreover, our algorithm performs gradually better as the number of processors and the input size increase.

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Author Biographies

Mohammad F. J. Klaib, Taibah University
Department of Computer Science,
Mutaz Rasmi Abu Sara, Taibah University
Department of Computer Science
Masud Hasan, Taibah University
Department of Computer Science

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Published
2020-10-02
How to Cite
Klaib, M. F. J., Abu Sara, M. R., & Hasan, M. (2020). A Parallel Implementation of Dual-Pivot Quick Sort for Computers with Small Number of Processors. Indonesia Journal on Computing (Indo-JC), 5(2), 81-90. https://doi.org/10.34818/INDOJC.2020.5.2.487
Issue
Vol. 5 No. 2 (2020): September, 2020
Section
Computer Science

Copyright (c) 2020 Mohammad F. J. Klaib, Mutaz Rasmi Abu Sara, Masud Hasan

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