CAREER: Online Measurement, Evaluation, and Adaptation of Parallel Applications

该研究计划的目标是从根本上改变调整并行和分布式应用程序的活动，从手动、用户密集型过程转变为自动过程。该项目将调查实现这一目标的四个具体步骤。首先，它将想方设法不仅确定瓶颈发生的地方，而且确定瓶颈的原因。其次，它将开发技术，允许程序员通过预测特定的调优选项对程序执行时间的影响来评估不同的调优方案。第三，它将把并行测量工具从计算和通信扩展到包括并行I/O系统。第四，它将研究关闭性能测量和调优循环的方法，以创建能够自动适应其计算环境的自调优应用程序。

The goal of this research program is to fundamentally change the activity of tuning parallel and distributed applications, from a manual, user intensive process, to an automatic one. The project will investigate four specific steps towards this goal. First, it will seek ways to not only identify the place where a bottleneck occurs, but also the cause of the bottleneck. Second, it will develop techniques to permit programmers to evaluate different tuning alternatives by predicting the impact specific tuning options will have on a program's execution time. Third, it will expand parallel measurement tools beyond computation and communication to include parallel I/O systems. Fourth, it will investigate ways to close the performance measurement and tuning loop to create self tuning applications that can automatically adapt to their computational environment.