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- W2056576290 abstract "This paper explores area/parallelism tradeoffs in the design of distributed shared-memory (DSM) multiprocessors built out of large single-chip computing nodes. In this context, area-efficiency arguments motivate a heterogeneous organization consisting of few nodes with large caches designed for single-thread parallelism, and a larger number of nodes with smaller caches designed for multi-thread parallelism. Quantitative performance of such organization is reported for a set of homogeneous multiprocessor programs from the SPLASH-2 benchmark suite. These programs are mapped onto the heterogeneous processors without source code modifications via static thread assignment policies. Simulation-based analysis is used to compare the performance of heterogeneous and homogeneous DSMs that occupy the same silicon area. The analysis shows that a 4-node heterogeneous DSM with 21 processors outperforms its homogeneous counterpart with 4 processors by an average age of 36% for the studied multiprocessor workload, while having the same performance for sequential codes. A sensitivity analysis based on a factorial design experiment is used to study the implications of processor, memory, and network heterogeneity on overall cost and performance of a heterogeneous DSM. The studied benchmarks are affected, on average, primarily by heterogeneity in processor performance (59.3%), followed by cache sizes (18.2%), memory latency (14.6%), and network latency (5.6%)." @default.
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- W2056576290 date "2002-11-07" @default.
- W2056576290 modified "2023-09-23" @default.
- W2056576290 title "Impact of heterogeneity on DSM performance" @default.
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- W2056576290 doi "https://doi.org/10.1109/hpca.2000.824336" @default.
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