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Sorting Units for FPGA-Based Embedded Systems

  • Rui Marcelino
  • Horácio Neto
  • João M.P. Cardoso
Conference paper
Part of the IFIP – The International Federation for Information Processing book series (IFIPAICT, volume 271)

Abstract

Sorting is an important operation for a number of embedded applications. As sorting large datasets may impose undesired performance degradation, acceleration units coupled to the embedded processor can be an interesting solution for speeding-up the computations. This paper presents and evaluates three hardware sorting units, bearing in mind embedded computing systems implemented with FPGAs. The proposed architectures take advantage of specific FPGA hardware resources to increase efficiency. Experimental results show the differences in resources and performances among the three proposed sorting units and also between the sorting units and pure software implementations for sorting.We show that a hybrid between an insertion sorting unit and a merge FIFO sorting unit provides a speed-up between 1.6 and 25 compared to a quicksort software implementation.

Key Words

sorting FPGAs embedded systems special-purpose architecture 

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Rui Marcelino
    • 1
  • Horácio Neto
    • 2
  • João M.P. Cardoso
    • 2
  1. 1.UALG/EST – Campus da Penha – FaroPortugal
  2. 2.UTL/IST/INESC-ID – Rua Alves Redol – Lisboa,Portugal

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