12959

A Performance Comparison of Sort and Scan Libraries for GPUs

Bruce Merry
Department of Computer Science, University of Cape Town, South Africa
University of Cape Town, 2014

@article{merry2014performance,

   title={A Performance Comparison of Sort and Scan Libraries for GPUs},

   author={Merry, Bruce},

   year={2014}

}

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Sorting and scanning are two fundamental primitives for constructing highly parallel algorithms. A number of libraries now provide implementations of these primitives for GPUs, but there is relatively little information about the performance of these implementations. We benchmark seven libraries for 32-bit integer scan and sort, and sorting 32-bit values by 32-bit integer keys.We show that there is a large variation in performance between the libraries, and that no one library has both optimal performance and portability.
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