CSR: Medium: Collaborative Research: Portable Performance for Parallel Managed Languages Across the Many-Core Spectrum

CSR：媒介：协作研究：跨多核频谱的并行托管语言的可移植性能

• 批准号: 1833291
• 负责人: J. Eliot Moss
• 金额: $ 0.91万
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-08-13 至 2019-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1833291&HistoricalAwards=false
• 关键词: CSR; Medium; Collaborative; Research; Portable

Computers with many tens to hundreds of ?cores? are on their way, but programming languages and toolsthat exploit them well have lagged. At the same time, there are emerging programming languages intendedfor writing programs to run on these computers. These languages, such as X10 and Fortress, add support fornew concepts that make it easier to write many-core programs, but there does not yet exist good compiler andrun-time support for these languages. Systems that run Java, namely Java virtual machines such as those thatrun on virtually every laptop, desktop, and server today, supply much of what the new languages need, butfall short in some important ways. In particular they do not provide for saying in which part of memory toplace particular objects, on which core to run which computations, easy ways to get all cores busy workingon different parts of a big piece of data, or for synchronizing and getting right all the data manipulationshappening at the same time. This project is extending an existing research Java virtual machine (JikesRVM) with support for many ways of doing the things that the new languages need in order to run wellon many-core computers. The primary goal is to devise extensions to standard Java virtual machines forthis new world, and to make it possible for many others to experiment with different ways of implementingthese extensions, thus leveraging the creativity of the whole community of language and virtual machineresearchers. Secondary goals include offering reasonably good initial implementations of virtual machineextensions as a starting point for future research and development, and proposing specific extensions to theJava virtual machine specification standard.

有数十至数百个核心的计算机？正在途中，但是编程语言和工具利用了它们的滞后。同时，有针对这些计算机上运行的编写程序的新兴编程语言。这些语言（例如X10和Fortress）增加了支持New概念，使编写多核程序变得更容易，但是尚未存在对这些语言的良好编译器Andrun时间支持。运行Java的系统，即当今几乎每个笔记本电脑，台式机和服务器上的Java Virtual Machines，例如在某些重要方面提供了许多新语言所需的系统。特别是他们没有说明内存的哪一部分特定对象，在哪个核心上运行哪些核心，使所有核心忙于工作的核心的简便方法，或者同时进行所有数据操作的所有数据操作，或同时进行所有数据操作。该项目正在扩展现有的研究Java虚拟机（Jikesrvm），并支持多种方法来执行新语言以运行Wellon多核计算机所需的操作。主要的目标是将扩展到标准的Java虚拟机出现新世界，并使许多其他人可以尝试实施不同的扩展方式，从而利用整个语言和虚拟机械搜索者的创造力。次要目标包括提供合理的良好初始实现，将虚拟机启示性作为未来研究和开发的起点，并提出针对java虚拟机规范标准的特定扩展。