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2008 37th International Conference on Parallel Processing (2008)
Sept. 9, 2008 to Sept. 11, 2008
ISSN: 0190-3918
ISBN: 978-0-7695-3374-2
pp: 422-429
Parallel applications can benefit greatly from massive computational capability, but their performance usually suffers due to large latency in I/O accesses. Conventional I/O prefetching techniques are conservative and are limited by low accuracy and coverage. As the processor performance has been increasing rapidly and the computing power is virtually free, we introduce a novel speculative approach for comprehensive and aggressive parallel I/O prefetching in this study. We present the design of our approach as well as challenges, solutions, and our prototype implementation. The experiments have shown promising results in reducing I/O access latency.
parallel I/O, prefetching, performance optimization

X. Sun, W. Gropp, Y. Chen, S. Byna and R. Thakur, "Exploring Parallel I/O Concurrency with Speculative Prefetching," 2008 37th International Conference on Parallel Processing(ICPP), vol. 00, no. , pp. 422-429, 2008.
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