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- W2161714705 abstract "Scientific simulations often produce large volumes of output that are moved to another platform for visualization or storage. This long-distance migration is slow due to the data size and slow network. Compression can improve migration performance by reducing the data size, but compression is computation-intensive and so can raise costs. In this work, we show how to reduce data migration cost by incorporating compression into migration. We analyze eight scientific data sets, and propose three approaches for parallel compression of scientific data. Our results show that with reasonably fast processors and typical parallel configurations, the compression cost for large scientific data is outweighed by the performance gain obtained by migrating less data. We found that a client-side compression approach (CC) can improve I/O and migration performance by an order of magnitude. In our experiments, CC always matches or outperforms migration without compression when we overlap migration with computation, even for not very compressible dense floating point data. We also present a variant of CC that is well suited for use with implementations of two-phase I/O." @default.
- W2161714705 created "2016-06-24" @default.
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- W2161714705 date "2002-01-01" @default.
- W2161714705 modified "2023-09-26" @default.
- W2161714705 title "Enhancing data migration performance via parallel data compression" @default.
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- W2161714705 doi "https://doi.org/10.1109/ipdps.2002.1015528" @default.
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