Abstract | ||
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Although Network-on-Chip(NoC) has become a popular solution for multicore system, its power consumption is still a concern for power-constrained design. We propose a NoC with variable channel width to achieve better energy-efficiency for NoC traffics in real systems. Based on the observation that short control messages account for a significant portion of NoC traffic, we use wide channel (128-bit) to transmit long data messages while dynamically split it into 2 narrower channels (64-bit) for short messages and shut down the unused channel to save energy. With workloads from PARSEC 2.1 benchmark suits, our proposed approach reduces NoC power consumption by up to 25%. More power saving can be achieved as injection rate increases under synthetic traffics. Besides, our method has no impact on performance and its induced area overhead is negligible. |
Year | DOI | Venue |
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2015 | 10.1109/MWSCAS.2015.7282188 | Midwest Symposium on Circuits and Systems Conference Proceedings |
Keywords | Field | DocType |
Network-on-chip,energy-efficient,variable channel width,no performance degradation | Power saving,Parsec,Efficient energy use,Computer science,Communication channel,Channel width,Electronic engineering,Decoding methods,Multi-core processor,Power consumption,Embedded system | Conference |
ISSN | Citations | PageRank |
1548-3746 | 2 | 0.37 |
References | Authors | |
9 | 2 |
Name | Order | Citations | PageRank |
---|---|---|---|
Cheng Li | 1 | 6 | 1.85 |
Paul Ampadu | 2 | 285 | 28.55 |