Abstract
Voltage and frequency scaling (VFS) for NoC can potentially reduce energy consumption, but the associated increase in latency and degradation in throughput limits its deployment. We propose flexible-pipeline routers that reconfigure pipeline stages upon VFS, so that latency through such routers remains constant. With minimal hardware overhead, the deployment of such routers allows us to reduce network frequency and save network energy, without significant performance degradation. Furthermore, we demonstrate the use of simple performance metrics to determine the optimal operation frequency, considering the energy/performance impact on all aspects of the system the cores, the caches and the interconnection network.
Original language | English (US) |
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Title of host publication | IEEE/ACM International Symposium on Low Power Electronics and Design, ISLPED 2011 |
Pages | 403-408 |
Number of pages | 6 |
DOIs | |
State | Published - Sep 19 2011 |
Event | 17th IEEE/ACM International Symposium on Low Power Electronics and Design, ISLPED 2011 - Fukuoka, Japan Duration: Aug 1 2011 → Aug 3 2011 |
Other
Other | 17th IEEE/ACM International Symposium on Low Power Electronics and Design, ISLPED 2011 |
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Country/Territory | Japan |
City | Fukuoka |
Period | 8/1/11 → 8/3/11 |
Keywords
- Chip Multiprocessors
- Frequency Scaling
- Interconnects
- NoC
- Pipelined Router
- Voltage Scaling