Power aware microarchitecture resource scaling
Proceedings of the conference on Design, automation and test in Europe
Energy-Aware Partitioning for Multiprocessor Real-Time Systems
IPDPS '03 Proceedings of the 17th International Symposium on Parallel and Distributed Processing
Dynamic and Aggressive Scheduling Techniques for Power-Aware Real-Time Systems
RTSS '01 Proceedings of the 22nd IEEE Real-Time Systems Symposium
Safely exploiting multithreaded processors to tolerate memory latency in real-time systems
Proceedings of the 2004 international conference on Compilers, architecture, and synthesis for embedded systems
Energy-Aware Task Allocation for Rate Monotonic Scheduling
RTAS '05 Proceedings of the 11th IEEE Real Time on Embedded Technology and Applications Symposium
Power-Aware Storage Cache Management
IEEE Transactions on Computers
Virtual multiprocessor: an analyzable, high-performance architecture for real-time computing
Proceedings of the 2005 international conference on Compilers, architectures and synthesis for embedded systems
A Dynamic Compilation Framework for Controlling Microprocessor Energy and Performance
Proceedings of the 38th annual IEEE/ACM International Symposium on Microarchitecture
Techniques for Multicore Thermal Management: Classification and New Exploration
Proceedings of the 33rd annual international symposium on Computer Architecture
Predictable Performance in SMT Processors: Synergy between the OS and SMTs
IEEE Transactions on Computers
Efficient Real-Time Support for Automotive Applications: A Case Study
RTCSA '06 Proceedings of the 12th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications
Energy-Efficient Real-Time Task Scheduling for a DVS System with a Non-DVS Processing Element
RTSS '06 Proceedings of the 27th IEEE International Real-Time Systems Symposium
Managing energy-performance tradeoffs for multithreaded applications on multiprocessor architectures
Proceedings of the 2007 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Proceedings of the conference on Design, automation and test in Europe
Energy Efficient Scheduling of Real-Time Tasks on Multicore Processors
IEEE Transactions on Parallel and Distributed Systems
High-performance, power-aware computing - HPPAC
IPDPS '09 Proceedings of the 2009 IEEE International Symposium on Parallel&Distributed Processing
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Power consumption is a major design concern in current high-performance microprocessors. To deal with consumption, many systems apply Dynamic Voltage Scaling (DVS) techniques which dynamically change the system speed depending on the workload characteristics. DVS costs in a multicore system can be reduced by sharing the same DVS regulator among the cores. In this context, to handle energy efficiently, the workload must be properly balanced among the cores. This paper proposes a new heuristic algorithm to balance the workload in a coarse-grain multicore system. The algorithm works on hard real-time tasks and dynamically drives the frequency/voltage level in order to guarantee real-time constraints. The proposed heuristic is aimed at improving the overlapping time between the memory and the processor while keeping utilization balanced among cores. Energy savings depend on the range of frequency/voltage levels that DVS implements. Experimental results show that the proposed heuristic reduces the energy consumption in almost 3 times with respect to a system with no DVS regulator and applying no heuristic.