Supporting Dynamic Voltage and Frequency Scaling in Networks-On-Chip for Hard Real-Time Systems
| Autor: | Thawra Kadeed, Rolf Ernst, Borislav Nikolic, Adam Kostrzewa |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Power management Computer science Distributed computing Context (language use) 02 engineering and technology 01 natural sciences 020202 computer hardware & architecture Power (physics) 0103 physical sciences Synchronization (computer science) 0202 electrical engineering electronic engineering information engineering Frequency scaling Protocol (object-oriented programming) Host (network) Voltage |
| Zdroj: | RTCSA |
| Popis: | Networks-On-Chip (NoCs) designed to host advanced embedded applications require simultaneously high performance and efficient real-time guarantees under tight power limitations. Static power management is no longer sufficient to fulfill these goals in the context of a highly dynamic environment, e.g. autonomous driving, leading to mode-dependent system's behavior and substantial changes in traffic patterns. For this purpose, we propose a global and self-aware power management for NoCs. Dynamic voltage and frequency adjustments are performed at runtime depending on the number of currently active applications using protocol-based synchronization. The safety of a solution is assured by formal analysis and extensive experimental evaluation using an vehicle assistance functions, as well as synthetic benchmarks. The proposed scheme provides the desired performance, and when compared with the state-of-the-art approach, it significantly decreases power footprint of the NoC - up to 59% in the considered realistic use-case. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|