CISE Research Instrumentation: Infrastructure to Support Accurate Performance Measurements of Multithreaded Programs

CISE 研究仪器：支持多线程程序准确性能测量的基础设施

• 批准号: 9729889
• 负责人: William Cohen
• 金额: $ 5.5万
• 依托单位: University of Alabama in Huntsville
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-02-15 至 2000-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9729889&HistoricalAwards=false
• 关键词: CISE; Research; Instrumentation; Infrastructure; Support

9729889 Cohen, William E. Kavi, Krishna The University of Alabama at Huntsville CISE Research Instrumentation: Infrastructure to Support Accurate Performance Measurements of Multithreaded Programs This research instrumentation enables the following research projects: - Pre-Load/Post-Store (PL/PS) architecture, - Fine-grained scheduling of multithreaded applications, and - Performance evaluation of the Java language. To support the aforementioned projects, the University of Alabama at Huntsville (UAH) will purchase a 4-processor SMP system and data logging hardware (NIST MultiKron II instrumentation board) which will provide an environment for experimental research in Computer and Information Science and Engineering. The system's low-overhead hardware/software instrumentation enables accurate performance measurements of multithreaded software and multithreaded architectures without resorting to slow, often intrusive, software simulation techniques. Research topics supported by this instrumentation include the evaluation of the Pre-Load/Post-Store (PL/PS) architecture, the comparison of adaptive and static fine-grained task scheduling techniques, and the examination of runtime performance of multithreaded Java programs. The PL/PS architecture breaks each task in a program into three phases: load, compute, and store. Separating the phases of each task allows greater flexiblity in scheduling the code and provides a means of hiding memory and communication latencies. Detailed simulators and compiler optimizations are being developed for the architecture. The fine-grained scheduling examines the overhead introduced on contemporary hardware/software environments by the various scheduling techniques applied to suites of real-world problems. The Java performance evaluation investigates the viability of Java as a programming language for high-performance computing and identifies features in the languages that limit performance. A better understanding of these topics will lead to techniques to improve the performance of multithreaded programs and architectures.

9729889 Cohen, William E. Kavi, Krishna The University of Alabama at Huntsville CISE Research Instrumentation: Infrastructure to Support Accurate Performance Measurements of Multithreaded Programs This research instrumentation enables the following research projects: - Pre-Load/Post-Store (PL/PS) architecture, - Fine-grained scheduling of multithreaded applications, and - Performance evaluation of the Java language. 为了支持上述项目，亨茨维尔大学（UAH）的阿拉巴马大学将购买4处理器SMP系统和数据记录硬件（NIST Multikron II仪器委员会），该系统将为计算机和信息科学和工程学方面的实验研究提供一个环境。 该系统的低空硬件/软件仪器可以对多线程软件和多线程体系结构进行准确的性能测量，而无需求助于速度缓慢，通常是侵入性的软件仿真技术。 该仪器支持的研究主题包括评估前卸载/后商店（PL/PS）体系结构，自适应和静态细粒度的任务调度技术的比较以及检查多线Java程序的运行时性能。 PL/PS体系结构将程序中的每个任务分为三个阶段：负载，计算和存储。 将每个任务的阶段分开可以使安排代码的更大灵活性，并提供一种隐藏内存和通信潜伏期的方法。 正在为架构开发详细的模拟器和编译器优化。细粒度的调度可以通过应用于现实世界中问题的套件的各种调度技术来研究当代硬件/软件环境上引入的间接费用。 Java绩效评估调查了Java作为用于高性能计算的编程语言的可行性，并确定了限制性能的语言中的功能。 对这些主题的更好理解将导致提高多线程程序和体系结构的性能的技术。