Visual Characterization of I/O System Behavior for High-End Computing

现代超级计算机是复杂的、分层的系统，由大量的核心、磁盘存储系统和I/O转发节点组成。这些数字继续增长，并且需要工具来理解系统软件的行为变得至关重要：没有这些工具，就不可能有效地调整软件，并且应用程序无法实现高度的效率。这个项目解决了在非常大规模的计算平台上理解复杂系统软件行为的挑战，比如目前的千兆级计算机。特别是，该项目正在开发软件基础设施，以提供端到端的I/O系统软件分析和可视化。具体来说，目标是开发，改进和部署(1)端到端，可扩展的跟踪集成到I/O系统（MPI-IO， I/O转发和文件系统）；(2)用于检测痕迹和提取知识的信息可视化工具；(3)测试驱动该系统生成示例模式的组件，包括生成异常的组件；(4)帮助其他系统软件开发人员将该分析和可视化系统集成到他们的生产软件中的教程和工具。本项目开发的软件和技术将直接适用于在大型系统上执行复杂交互的其他系统软件库。欲了解更多信息，请参阅项目网站的URL:http://vis.cs.ucdavis.edu/NSF/Jupiter

Modern supercomputers are complex, hierarchical systemsconsisting of huge numbers of cores, systems for disk storage,and nodes for I/O forwarding. These numbers continue to grow andthe need for tools to understand the behavior of the systemsoftware becomes paramount: without these tools it is impossibleto effectively tune that software, and high degrees of efficiencyis unattainable by applications. This project addresses thechallenge of understanding the behavior of complex systemsoftware on very large-scale compute platforms, like the currentpetascale computers. In particular, this project is developingsoftware infrastructure to provide end-to-end analysis andvisualization of I/O system software. Specifically, theobjectives are to develop, improve, and deploy (1) end-to-end,scalable tracing integrated into the I/O system (MPI-IO, I/Oforwarding, and file system); (2) information visualization toolsfor inspecting traces and extracting knowledge; (3) testingcomponents that drive this system to generate example patterns,including a component to generate anomalies; and (4) tutorialsand tools for helping other system software developersincorporate this analysis and visualization system into theirproduction software. The software and techniques developed inthis project will be directly applicable to and useful in othersystem software libraries which perform complex interactions onlarge systems.For further information see the project web site at the URL:http://vis.cs.ucdavis.edu/NSF/Jupiter