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- W2100184706 abstract "Master/Slave Speculative Parallelization (MSSP) is an execution paradigm for improving the execution rate of sequential programs by parallelizing them speculatively for execution on a multiprocessor. In MSSP one processor - the master - executes an approximate version of the program to compute selected values that the full program's execution is expected to compute. The master's results are checked by slave processors that execute the original program. This validation is parallelized by cutting the program's execution into tasks. Each slave uses its predicted inputs (as computed by the master) to validate the input predictions of the next task, inductively validating the entire execution. The performance of MSSP is largely determined by the execution rate of the approximate program. Since approximate code has no correctness requirements (in essence it is a software value predictor), it can be optimized more effectively than traditionally generated code. It is free to sacrifice correctness in the uncommon case to maximize performance in the common case. A simulation-based evaluation of an initial MSSP implementation achieves speedups of up to 1.7 (harmonic mean 1.25) on the SPEC2000 integer benchmarks. Performance is currently limited by the effectiveness with which our current automated infrastructure approximates programs, which can likely be improved significantly." @default.
- W2100184706 created "2016-06-24" @default.
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- W2100184706 date "2002-11-18" @default.
- W2100184706 modified "2023-09-26" @default.
- W2100184706 title "Master/Slave Speculative Parallelization" @default.
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- W2100184706 doi "https://doi.org/10.5555/774861.774871" @default.
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