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Hybrid static–dynamic selection of implementation alternatives in heterogeneous environments

  • D. del Rio Astorga
  • Manuel F. DolzEmail author
  • Javier Fernandez
  • Javier Garcia Blas
Article
  • 92 Downloads

Abstract

With the emergence of heterogeneous architectures, developing parallel software has become an increasingly complex task. The ability of using multiple devices in a single application, such as CPUs, accelerators, or coprocessors, has turned the implementation and optimization tasks into a challenging process, which comes along with a variety of difficulties. The inherent complexities of the parallel algorithm, its multiple implementations, and the mapping possibilities onto one of the available processors are just examples of how intricate these tasks can become. To alleviate these issues, this paper proposes a hybrid static–dynamic selector to better exploit resources provided by heterogeneous systems. Specifically, this framework generates at compile time a decision tree based on historical information for selecting the implementation that performs best at run-time. To evaluate the benefits of this approach, we analyze the performance with two use cases: the general matrix–matrix multiplication and an image processing medical application. The experimental results demonstrate that our proposed selector enhances performance and minimizes efforts needed to tune applications. We proved that our solution improves from 10 to 24% the overall application performance in comparison with other similar approach.

Keywords

Implementation selector Heterogeneous platforms Auto-tuning 

Notes

Acknowledgements

This work has been partially supported by the EU Project ICT 644235 “RePhrase: REfactoring Parallel Heterogeneous Resource-Aware Applications” and the Project TIN2016-79637-P “Towards Unification of HPC and Big Data Paradigms” from the Spanish “Ministerio de Economía y Competitividad”.

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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  • D. del Rio Astorga
    • 1
  • Manuel F. Dolz
    • 1
    Email author
  • Javier Fernandez
    • 1
  • Javier Garcia Blas
    • 1
  1. 1.Department of Computer ScienceUniversidad Carlos IIILeganésSpain

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