Resource-Controlled Parallel Execution of Real-Time Applications in Networks of Workstations

这个项目计划研究如何最好地使用多个工作站来支持现代的、高度交互的应用程序。最初的重点是实时渲染3D计算机生成的场景。这些应用程序在多计算机使用中提出了两个关键的新问题：它们强调机器中的资源（例如，内存带宽和外部视频处理能力），而不仅仅是处理器速度和网络带宽，“良好的性能”意味着满足下一帧必须产生的短时间期限，而不是最小化相当长的执行时间。这个项目的重点是资源分配：如何将全系统的资源分配给必须解决的问题的各个组成部分，以便能够实现业绩目标。当前的工作目标是在一个环境中解决这个问题，在这个环境中，要执行的工作和可用的总资源在帧与帧之间是相对恒定的。这项工作的长期目标是调查复制的使用，以帮助确保在更动态的环境中继续满足最后期限。

This project plans to investigate how to best use multiple workstations to support modern, highly interactive applications. The initial focus is on the real-time rendering of 3D computer generated scenes. These applications present two key new problems in the use of multi-computers: they stress resources in the machines (e.g., memory bandwidth and outboard video processing capability) other than just processor speed and network bandwidth, and "good performance" means meeting the short time deadline by which the next frame must be produced rather than minimizing the duration of a fairly long execution. The focus of this project is on resource allocation: how to divide system-wide resources among the components of the problem that must be done so that performance objectives can be met. The current effort is aimed at solving this problem in an environment where both the work to be performed and the total resources that are available are relatively constant from frame to frame. A longer term goal of the work is to investigate the use of replication to help assure that deadlines will continue to be met in more dynamic environments.