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: 1161237
• 负责人: Antony Hosking
• 金额: $ 33.8万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-06-01 至 2018-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1161237&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.

电脑有几十到几百个？核心？正在发展中，但是能够很好地利用它们的编程语言和工具已经落后了。与此同时，有新兴的编程语言打算编写程序运行在这些计算机上。这些语言，如X10和Fortress，增加了对新概念的支持，使编写众核程序变得更容易，但是还没有好的编译器和运行时支持这些语言。运行Java的系统，也就是Java虚拟机，比如现在运行在几乎所有笔记本电脑、台式机和服务器上的虚拟机，提供了新语言所需的大部分内容，但在某些重要方面还存在不足。特别是，它们没有规定在内存的哪个部分放置特定的对象，在哪个核心上运行哪些计算，让所有核心忙碌地处理一个大数据的不同部分的简单方法，或者同步和正确地处理同时发生的所有数据操作。这个项目正在扩展现有的研究Java虚拟机（JikesRVM），支持许多新语言需要做的事情，以便在众核计算机上运行良好。主要目标是为这个新世界设计标准Java虚拟机的扩展，并使许多其他人能够尝试不同的实现这些扩展的方法，从而利用整个语言和虚拟机研究人员社区的创造力。第二个目标包括提供虚拟机扩展的合理良好的初始实现，作为未来研究和开发的起点，并提出对Java虚拟机规范标准的特定扩展。