Power-Aware Resource Management in Densely Packaged Distributed Real-Time Embedded Systems

机载嵌入式系统，如航空电子和飞行控制、舰载计算、航天飞机、智能运输系统以及医疗和应急设施和车辆中的仪器，在计算负载和严格的时间保证方面都面临着大大增加的计算要求。设计人员关心的两个重要问题是有效的任务调度以满足实时约束和减少系统范围的能耗以提高可靠性。嵌入式系统中超过50%的故障与操作温度密切相关。这些反过来又由系统中计算组件的功耗决定。本研究旨在开发峰值功率约束调度方法来缓解这些可靠性问题。该项目致力于开发峰值功率模型，以准确描述分布式嵌入式系统中的功率限制，从而允许在高负载期间安全有效地使用可用的计算资源。这种方法的独特之处在于它关注具有不同工作负载的分布式嵌入式系统。用于混合架构的电源感知分区（PAP）方案包括处理器和可重构组件，如现场可编程门阵列（FPGA），为系统设计人员提供了性能和系统任务实时调度的调整能力。该项目研究了混合嵌入式系统中快速功耗感知任务划分算法的发展。

On-board embedded systems, such as those found in avionics and flight control,shipboard computing, space shuttles, intelligent transport systems and instrumentations inmedical and emergency facilities and vehicles, face greatly increased computationalrequirements both in terms of computation load as well as stringent constraints on timingguarantees. Two important issues that concern designers are efficient task scheduling tomeet real-time constraints and the reduction of system-wide energy consumption forincreased reliability.Over 50% of failures in embedded systems are closely related to operating temperatures.These in turn are determined by the power consumption of the computational componentsof the system. This research seeks to develop peak power constrained scheduling methods to alleviate these reliability concerns. The project pursues the development of a peak power model to accurately describe the power constraints in a distributed embedded system, thereby allowing for a safe and effective use of the available computational resources during periods of high load. The uniqueness of this approach is its focus on distributed embedded systems with varying workloads. Power aware partitioning (PAP) schemes for hybrid architectures comprising processors and reconfigurable components, such as a Field Programmable Gate Arrays (FPGA), provide system designers with tuning capabilities for performance and real-time scheduling of system tasks. The project investigates the development of fast power-aware task partitioning algorithms in hybrid embedded systems.