Introduction to GPU Radix Sort

Takahiro Harada, Lee Howes
Advanced Micro Devices, Inc.
Bonus in book "Heterogeneous Computing with OpenCL", published 2011 by Morgan Kaufman


   title={Introduction to GPU Radix Sort},

   author={Harada, T. and Howes, L.},

   booktitle={Heterogeneous Computing with OpenCL},



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Radix sort is one of the fastest sorting algorithms. It is fast especially for a large problem size. Radix sort is not a comparison sort but a counting sort. When we sort n bit keys, 2^n counters are prepared for each number.
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  • richard.kettlewell

    The DirectCompute version of the Radix Sort fails on my HD7950. Is this a known issue?

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  • hgpu

    The tests are passed on my HD5850.

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