CSR: Small: Distributed Shared Persistent Memory

CSR：小型：分布式共享持久内存

• 批准号: 1719215
• 负责人: Yiying Zhang
• 金额: $ 40.46万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-10-01 至 2020-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1719215&HistoricalAwards=false
• 关键词: CSR; Small; Distributed; Shared; Persistent

This project has the potential to revolutionize datacenter systems by developing the first type of system that integrates traditional datacenter memory and storage systems in one layer. The proposed software platform can potentially be used to develop various course and research projects. The investigator will publicly release the developed software to enable a rich set of datacenter applications and to foster more cross-layer research activities.Next-generation non-volatile memories (NVMs) provide byte addressability, persistence, and low-latency performance. They are poised to radically alter the landscape of memory and storage technologies and have already inspired a host of research projects. Most previous research on NVMs has focused on using them in a single machine. It is unclear how to best utilize NVMs in distributed, datacenter environments. This project takes a significant step towards the goal of using NVMs in distributed datacenter environments by developing Distributed Shared Persistent Memory (DSPM), a framework that uses a pool of machines with NVMs to form a global, shared, and persistent memory space. Applications can perform traditional memory load and store instructions to access both local and remote data in this global memory space and can at the same time make their data persistent and reliable. Unlike traditional two-layer approaches with a memory and a storage layer, DSPM has just one layer that serves both as distributed memory and as distributed storage. Anticipated deliverables include a new kernel-based, software DSPM system and a set of datacenter applications ported to DSPM.

该项目通过开发第一种将传统数据中心内存和存储系统集成在一层中的系统，有可能彻底改变数据中心系统。提出的软件平台可以潜在地用于开发各种课程和研究项目。研究人员将公开发布开发的软件，以实现丰富的数据中心应用程序集，并促进更多的跨层研究活动。下一代非易失性存储器（nvm）提供字节可寻址性、持久性和低延迟性能。它们将从根本上改变记忆和存储技术的格局，并已经激发了许多研究项目。以前对nvm的大多数研究都集中在单个机器上使用它们。目前还不清楚如何在分布式数据中心环境中最好地利用nvm。通过开发分布式共享持久内存（distributed Shared Persistent Memory， DSPM），该项目朝着在分布式数据中心环境中使用nvm的目标迈出了重要的一步。DSPM是一个框架，它使用具有nvm的机器池来形成一个全局、共享和持久的内存空间。应用程序可以执行传统的内存加载和存储指令来访问这个全局内存空间中的本地和远程数据，同时可以使它们的数据持久可靠。与具有内存层和存储层的传统两层方法不同，DSPM只有一个层，既充当分布式内存，又充当分布式存储。预期的交付成果包括一个新的基于内核的软件DSPM系统和一组移植到DSPM的数据中心应用程序。