CSR: Small: Cost Function Based Management of Computational and Energy Resources in Embedded Controllers

近年来，出现了许多嵌入式应用，其中计算机对外部需求的响应速度与其输出的正确性一样重要。这些是实时系统，任务必须满足指定的截止日期。这种任务期限是基于应用程序的特定需求，从时刻到时刻。通常情况下，应用程序由一组处理器提供服务，在有截止日期限制的任务上进行协作。为了有效地做到这一点，需要有效地管理处理器和系统可用的能源。获得应用程序敏感的资源管理技术是这个建议的重点。智力的优点在于集成的方式，其中与嵌入式系统相关联的各个元素进行管理。定义了成本函数，其提供嵌入式系统的计算机和控制域之间的接口，传达相对于控制域的计算任务的紧迫性。这样的成本函数，一旦定义，可以由计算域使用，以有效地管理计算和能源资源;获得它们是该项目的第一个推力。使用这样的成本函数来动态地管理与计算机域相关的资源（以便在指定的使命上优化控制域性能）是第二个推力。这些系统的范围从小型植入式医疗设备到全国联网系统;它们的有效运作非常重要。该项目涉及计算机和控制领域的跨学科领域。这项工作的成果，沿着相关的背景材料，将以可获取的模块的形式纳入研究生和本科生课程;这些都将有助于培训一支多样化的劳动力队伍，使他们能够在计算、控制和网络的相互作用的世界中充满信心地工作。以及与本项目有关的其他相关技术资料。其目的是使项目产生的材料得以广泛和自由传播。马萨诸塞州大学图书馆系统运行着一个将用于此目的的存储库（Umassworks @UmassAmherst; URL：http：//Umassworks.umass.edu/ece/）。将保留该材料，直至主要研究者认为其已过时。将注意确保在广泛提供这些材料时不侵犯隐私或知识产权。

In recent years, many embedded applications have emerged where the speed of the computer's response to external demands is as important as the correctness of its output. These are real-time systems, where tasks must meet specified deadlines. Such task deadlines are based on the specific needs of the application, from moment to moment. Typically, applications are served by a cluster of processors, collaborating together on deadline-bound tasks. To do this effectively requires efficient management of the processor and energy resources available to the system. Obtaining application-sensitive resource management techniques is the focus of this proposal.The intellectual merit lies in the integrated way in which the individual elements associated with embedded systems are managed. Cost functions are defined that provide an interface between the computer and control domains of the embedded system, conveying the urgency of computational tasks with respect to the control domain. Such cost functions, once defined, can be used by the computational domain to effectively manage computational and energy resources; obtaining them is the first thrust of the project. Using such cost functions to dynamically manage the resources pertinent to the computer domain (so as to optimize control-domain performance over a specified mission) is the second thrust.The broader impact of the project arises from the economic and social importance of embedded systems in today's world. Such systems range from small implantable medical devices to country-wide networked systems; their efficient functioning is of great importance. This project occupies an interdisciplinary area involving both computer and control domains. The results of this work, along with associated background material, will be migrated in the form of accessible modules to both the graduate and undergraduate curriculum; these will contribute to the training of a diverse workforce that can work with confidence in the interacting worlds of computation, control and networking.A project repository will be maintained containing code, course modules, technical/research documents, and other relevant technical material associated with this project. Its purpose is to make possible a wide and free dissemination of project-generated materials. The University of Massachusetts library system runs a repository (scholarworks@UMassAmherst; URL: http://scholarworks.umass.edu/ece/) that will be used for this purpose. The material will be maintained until, in the judgement of the Principal Investigator, it becomes obsolete. Care will be taken to ensure that there are no privacy or intellectual property violations in making this material widely available.