Streamlining High-End Computing with Software Persistent Memory

使用软件持久内存简化高端计算

• 批准号: 0937964
• 负责人: Raju Rangaswami
• 金额: $ 71.2万
• 依托单位: Florida International 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: 2010-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0937964&HistoricalAwards=false
• 关键词: Streamlining; End; Computing; Software; Persistent

Current high-end computing (HEC) applications explicitly manage persistent data, including both application state and application output. This practice not only increases development time and cost, but also requires an application developer to be intimately aware of the underlying platform-dependent storage mechanisms to achieve good application I/O performance. Such vertical development also makes the application software less portable.The Software Persistent Memory (SoftPM) project builds a lightweight infrastructure for streamlining data management in next generation HEC applications. SoftPM eliminates the duality of data management in HEC applications by allowing applications to allocate persistent memory in much the same way volatile memory is allocated and easily restore, browse, and interact with past versions of persistent memory state. This simplifies the implementation of three broad capabilities required in HEC applications -- recoverability (e.g., checkpoint-restart), record-replay (e.g., data-visualization), and execution branching (e.g., simulation model-space exploration).The SoftPM project is organized in three modules. The first module builds an evolvable SoftPM API and addresses memory management issues. The second module addresses high-performance I/O and the atomicity of persistence points for local storage and parallel file systems. The final module builds several HEC application case-studies to illustrate the different capabilities supported by SoftPM in HEC environments.

当前的高端计算（HEC）应用程序显式管理持久性数据，包括应用程序状态和应用程序输出。这种做法不仅增加了开发时间和成本，而且还要求应用程序开发人员密切了解底层的平台相关存储机制，以实现良好的应用程序I/O性能。软件持久存储器（SoftPM）项目建立了一个轻量级的基础设施，以简化下一代HEC应用程序的数据管理。SoftPM消除了HEC应用程序中数据管理的双重性，允许应用程序以与易失性内存分配方式大致相同的方式分配持久内存，并轻松恢复、浏览和与持久内存状态的过去版本进行交互。这简化了HEC应用程序中所需的三大功能的实现--可恢复性（例如，检查点-重启），记录-重放（例如，数据可视化），以及执行分支（例如，SoftPM项目分为三个模块。第一个模块构建了一个可演进的SoftPM API，并解决了内存管理问题。第二个模块处理高性能I/O和本地存储和并行文件系统的持久化点的原子性。最后一个模块构建了几个HEC应用程序案例研究，以说明SoftPM在HEC环境中支持的不同功能。