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A GPU-Based Parallel Reduction Implementation

  • Walid Abdala Rfaei JradiEmail author
  • Hugo Alexandre Dantas do Nascimento
  • Wellington Santos Martins
Conference paper
  • 24 Downloads
Part of the Communications in Computer and Information Science book series (CCIS, volume 1171)

Abstract

Reduction operations aggregate a finite set of numeric elements into a single value. They are extensively employed in many computational tasks and can be performed in parallel when multiple processing units are available. This work presents a GPU-based approach for parallel reduction, which employs techniques like loop unrolling, persistent threads and algebraic expressions. It avoids thread divergence and it is able to surpass the methods currently in use. Experiments conducted to evaluate the approach show that the strategy performs efficiently on both AMD and NVidia’s hardware platforms, as well as using OpenCL and CUDA, making it portable.

Keywords

GPU Parallel reduction Portable 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Instituto de InformáticaUniversidade Federal de GoiásGoiâniaBrazil

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