II-New: A Computational Infrastructure for Scalable Transactional Memory Abstractions in Managed Languages

II-新：托管语言中可扩展事务内存抽象的计算基础设施

• 批准号: 0958465
• 负责人: Jan Vitek
• 金额: $ 55.63万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-06-01 至 2014-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0958465&HistoricalAwards=false
• 关键词: II; New; Computational; Infrastructure; Scalable

This proposal supports the acquisition of an Azul Vega 3 compute appliancefor research on developing an open-source general-purpose transactionalinfrastructure for high-level managed languages. This appliance is equippedwith hundreds of processor cores, substantial memory, and bandwidthavailability. The cores compute in a flat SMP configuration, simplifyingprogrammability and management. The appliance has a number of novelfeatures including hardware support for concurrent garbage collection, andoptimistic lock elision that provide critical building blocks for efficienttransactional memory (TM) support. The project's research agenda is toexplore new approaches to scalable parallel program construction thatexploits underlying hardware primitives that mask or mitigate criticalbottlenecks that have thus far hampered effective scalable softwaretransactional memory systems.The project will use the novel features of the Azul appliance to (i) explorenew language abstractions with special focus on scalability of transactionalapplications; (ii) understand how primitive support for garbage collectionand transactions influence algorithm and application development built usingthese abstractions; (iii) examine the impact of these mechanisms oncompiler and runtime design; and (iv) develop a large number of benchmarksand workloads to better understand TM performance characteristics.This project is part of a larger NSF-funded effort to catalyze TM research,which in turn is a key technique to improving software development forgeneral-purpose parallel computers. Widespread adoption of new scalableconcurrency abstractions such as transactional memory is an essentialcomponent in the technology roadmap of major industry players, and the focusof much attention in academia.

该提案支持购买 Azul Vega 3 计算设备，用于研究开发高级托管语言的开源通用事务基础设施。 该设备配备了数百个处理器核心、大量内存和带宽可用性。 这些内核采用扁平 SMP 配置进行计算，从而简化了可编程性和管理。 该设备具有许多新颖的功能，包括对并发垃圾收集的硬件支持，以及为高效事务内存 (TM) 支持提供关键构建块的乐观锁省略。 该项目的研究议程是探索可扩展并行程序构建的新方法，该方法利用底层硬件原语来掩盖或减轻迄今为止阻碍有效可扩展软件事务内存系统的关键瓶颈。该项目将使用 Azul 设备的新颖功能来 (i) 探索新语言特别关注事务应用程序的可扩展性的抽象； (ii) 了解对垃圾收集和事务的原始支持如何影响使用这些抽象构建的算法和应用程序开发； (iii) 检查这些机制对编译器和运行时设计的影响； (iv) 开发大量基准测试和工作负载，以更好地了解 TM 性能特征。该项目是 NSF 资助的更大项目的一部分，旨在促进 TM 研究，而这反过来又是改进通用并行计算机软件开发的关键技术。 事务内存等新的可扩展并发抽象的广泛采用是主要行业参与者技术路线图中的重要组成部分，也是学术界高度关注的焦点。