Thread Shuffling: Combining DVFS and Thread Migration to Reduce Energy Consumptions for Multi-core Systems

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Provided by: Institute of Electrical & Electronic Engineers
Topic: Hardware
Format: PDF
In recent years, multi-core systems have become main-stream in computer industry. The design of multi-cores takes advantage of thread-level parallelism in emerging applications that are computationally intensive and highly parallel. Energy efficiency is one of the biggest challenges in the design of multi-core systems, and workload imbalance among parallel threads is one of sources of energy inefficiency. Many techniques based on Dynamic Voltage Frequency Scaling (DVFS) are proposed to save energy consumptions on multi-cores, but all of them assume that each core in a multi-core system contains only one hardware context and only one thread can execute on one core at a time.
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