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- W2070696730 abstract "Communication latencies and delays are a major source of performance degradation in parallel computing systems. It is important to mask these communication delays by overlapping them with useful computation in order to obtain good parallel performance. This article proposes speculative computation as a technique to mask communication latencies in synchronous iterative algorithms. Processors speculate the contents of messages that are not yet received and perform computation based on the speculated values. When the messages are received, they are compared with the speculated values and, if the error is unacceptable, the resulting computation is corrected or recomputed. If the error is small, the speculated value is accepted and the processor has masked the communication delay. The technique, applied to N-body simulations yielded a performance improvement of up to 34%." @default.
- W2070696730 created "2016-06-24" @default.
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- W2070696730 date "1994-01-01" @default.
- W2070696730 modified "2023-09-26" @default.
- W2070696730 title "Speculative Computation: Overcoming Communication Delays" @default.
- W2070696730 cites W2108167744 @default.
- W2070696730 cites W2158992088 @default.
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- W2070696730 doi "https://doi.org/10.1109/icpp.1994.183" @default.
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