NGS: Collaborative Research: Adaptive Performance and Power Management for Real-Time Systems

EIA-0102696以色列马萨诸塞州科伦大学实时系统的自适应性能和功率管理这项研究将使实时计算机系统能够监视并自动调整其功率使用，以适应指定的容错和性能要求、普遍的工作负载以及当前和预计的能量/功率约束。许多系统受到功率限制，并不总是对其功耗有严格的限制。相反，它们有一段时间的能源供应非常有限，应该节约使用，而在其他时间，可用的电力是足够的，允许系统利用其所有资源来提供最大的性能。虽然在开发电路和设计技术以构建低功耗设备方面已经进行了大量的研究，但很少有关于动态调整功耗以适应不断变化的工作负荷和能量/功率可用性的技术的报道。需要一种从硬件操作(使用电压时钟定标或休眠模式)到应用级的集成方法。我们的初步调查表明，这种综合方法，利用这些不同层之间的协同作用，比逐步采用的单层方法有效得多。

EIA-0102696Israe KorenUniversity of MassachusettsAdaptive Performance and Power Management for Real-Time SystemsThis research will enable real-time computer systems to monitor and automatically adapt their power usage to specified fault-tolerance and performance requirements, prevailing workload, and current and projected energy/power constraints.Many systems, which are power-constrained, do not always have a strict limit on their power consumption. Instead, they have periods of time during which energy supply is very limited, and should be used sparingly, while at other times, the power available is adequate and the system is allowed to exploit all its resources to deliver maximum performability. While there has been a great deal of research in developing circuits and design techniques to build low-power devices, there is very little reported on techniques to adjust power consumption on-the-fly to adapt to changing levels of workload and energy/power availability. There is the need for an integrated approach, ranging from the hardware operation (using voltage-clock scaling or a sleep mode) to the application level. Our preliminary investigations have shown that such an integrated approach, exploiting the synergy between these various layers, is far more effective than single-layer approaches adopted incrementally.