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arXiv · 1001.4108

A Multi-Stage CUDA Kernel for Floyd-Warshall

Ben Lund·Justin W Smith
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Abstract

We present a new implementation of the Floyd-Warshall All-Pairs Shortest Paths algorithm on CUDA. Our algorithm runs approximately 5 times faster than the previously best reported algorithm. In order to achieve this speedup, we applied a new technique to reduce usage of on-chip shared memory and allow the CUDA scheduler to more effectively hide instruction latency.

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Ben Lund, Justin W Smith. 2010-02-25. A Multi-Stage CUDA Kernel for Floyd-Warshall. https://arxiv.org/abs/1001.4108

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