The Journal of Supercomputing

, Volume 64, Issue 1, pp 59–68 | Cite as

Extending a hierarchical tiling arrays library to support sparse data partitioning

  • Javier Fresno
  • Arturo Gonzalez-Escribano
  • Diego R. Llanos
Article

Abstract

Layout methods for dense and sparse data are often seen as two separate problems with their own particular techniques. However, they are based on the same basic concepts. This paper studies how to integrate automatic data-layout and partition techniques for both dense and sparse data structures. In particular, we show how to include support for sparse matrices or graphs in Hitmap, a library for hierarchical tiling and automatic mapping of arrays. The paper shows that it is possible to offer a unique interface to work with both dense and sparse data structures. Thus, the programmer can use a single and homogeneous programming style, reducing the development effort and simplifying the use of sparse data structures in parallel computations. Our experimental evaluation shows that this integration of techniques can be effectively done without compromising performance.

Keywords

Data partition Layouts Distributed computing Sparse data 

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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Javier Fresno
    • 1
  • Arturo Gonzalez-Escribano
    • 1
  • Diego R. Llanos
    • 1
  1. 1.Dpto. InformáticaUniversidad de ValladolidValladolidSpain

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