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Modeling Loop Unrolling: Approaches and Open Issues

  • João M. P. Cardoso
  • Pedro C. Diniz
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3133)

Abstract

Loop unrolling plays an important role in compilation for Reconfigurable Processing Units (RPUs) as it exposes operator parallelism and enables other transformations (e.g., scalar replacement). Deciding when and where to apply loop unrolling, either fully or partially, leads to large design space exploration problems. In order to cope with these vast spaces, researchers have explored the application of design estimation techniques. Using estimation, tools can conduct early evaluation of the impact and interplay of transformations in both the required resources and expected performance. In this paper we present some of the current approaches and issues related to estimation of the loop unrolling impact when targeting RPUs.

Keywords

Nest Loop Reference Vector Design Space Exploration Array Reference Temporal Partitioning 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • João M. P. Cardoso
    • 1
  • Pedro C. Diniz
    • 2
  1. 1.Faculty of Sciences and TechnologyUniversity of AlgarveLisbonPortugal
  2. 2.Information Sciences InstituteUniversity of Southern CaliforniaMarina del ReyUSA

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