A leakage-aware L2 cache management technique for producer-consumer sharing in low-power chip multiprocessors |
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Authors: | Hyunhee Kim Author VitaeJihong KimAuthor Vitae |
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Affiliation: | School of Computer Science and Engineering, Seoul National University, Seoul, 151-742, Republic of Korea |
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Abstract: | This paper proposes a novel leakage management technique for applications with producer-consumer sharing patterns. Although previous research has proposed leakage management techniques by turning off inactive cache blocks, these techniques can be further improved by exploiting the various run-time characteristics of target applications in CMPs. By exploiting particular access sequences observed in producer-consumer sharing patterns and the spatial locality of shared buffers, our technique enables a more aggressive turn-off of L2 cache blocks of these buffers. Experimental results using a CMP simulator show that our proposed technique reduces the energy consumption of on-chip L2 caches, a shared bus, and off-chip memory by up to 31.3% over the existing cache leakage power management techniques with no significant performance loss. |
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Keywords: | Chip multiprocessors L2 cache Leakage Producer-consumer sharing |
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