Core Power Management Issues in Asymmectric Multi/Many-Core Processors

Power managing is a major issue in designing the future asymmectric multi/many-core processors. The challenge is to provide a solution that has low power consumption, in addition to trade off a small decrease in performance and throughput. Our design includes asymmetric cores in consideration of different points in the view of power-performance efficiency during an application’s execution. In this situation, system software dynamically chooses the most appropriate core to satisfy specific performance and power requirements. In this paper, the authors consider power-aware core management issues based on efficient control of the core resources on asymmectric multi/many-core processors as a mechanism to reduce the huge latency and the power dissipation for powering the core up from powered down. Operation is based on distinct scenarios by tightly-coupled hardware and software-level methods. To verify this objective, we use Sniper simulator to estimate power-performance efficiency using a well-known benchmark. Keywords—Asymmectric Multi/Many-Core Processors; Hardware/Software-Level Power Control Schemes; Thread Management; Power-Performance Efficiency