SI2-SSI: Distributed Workflow Management Research and Software in Support of Science

该奖项资助最先进的工作流程技术的增强及其在广泛的科学领域中的推广。总体目标是通过向科学家提供能够以可靠和可扩展的方式管理国家网络基础设施上的计算的工具来推进科学发现。 该奖项支持的关键技术是Pegasus工作流管理系统（Pegasus）。 这项工作计划包括飞马座的开发、支持和维护。Pegasus允许用户声明性地描述他们的工作流，然后制定一个计划，将此描述映射到可用的执行资源上并执行该计划。这种方法可扩展、可靠，并支持在校园资源、云和国家网络基础设施上运行的应用程序。根据该奖项开展的工作将：1）通过扩大采用合理的软件工程实践和改进可用性来增强Pegasus软件的可持续性，2）增强核心能力，特别是在数据管理领域，以满足用户需求，并使Pegasus更容易集成到端到端科学环境中，3）促进在领域和计算机科学中采用工作流管理技术。 智力优势：Pegasus WMS为科学家的办公桌带来了创新和强大的框架。通过与广泛的参与用户社区的密切合作，大规模分布式计算的实验成为可能。该实验支持新的科学工作流管理概念、框架和技术的发展。拟议的工作还通过提供一个工作流程管理系统来支持科学的可重复性，该系统集成并自动化数据，元数据和来源管理功能。更广泛的影响：Pegasus WMS已被来自不同领域的科学家采用，并已集成到最终用户环境中，如工作流组合工具和门户网站。该奖项促进的推广和教育计划将通过教程，研讨会，与潜在用户的会议和在线材料扩大Pegasus的影响。 拟议的接口增强功能将允许更多的最终用户环境利用飞马座？能力，并将扩大飞马座的影响，以更广泛的用户。

This award funds the enhancement of state-of-the-art workflow technologies and their promotion within a broad range of scientific domains. The overarching goal is to advance scientific discovery by providing scientists with tools that can manage computations on national cyberinfrastructure in a way that is reliable and scalable. The key technology supported by this award is the Pegasus Workflow Management System (Pegasus). This program of work includes the development, support, and maintenance of Pegasus. Pegasus allows users to declaratively describe their workflow, then makes a plan that maps this description onto the available execution resources and executes the plan. This approach is scalable, reliable, and supports applications running on campus resources, clouds, and national cyberinfrastructure. The work conducted under this award will 1) enhance the sustainability of the Pegasus software through the expanded adoption of sound software engineering practices and improved usability, 2) enhance core capabilities, especially in the area of data management, to meet user requirements and make Pegasus easier to integrate into end-to-end scientific environments, 3) promote the adoption of workflow management technologies within domain and computer sciences. Intellectual Merit: Pegasus WMS brings innovative and powerful frameworks to the desk of the scientist. Through close collaboration with a broad community of engaged users, experimentation in large-scale distributed computing is made possible. This experimentation supports the development of new scientific workflow management concepts, frameworks and technologies. The proposed work also supports scientific reproducibility by providing a workflow management system that integrates and automates data, metadata, and provenance management functions. Broader Impact: Pegasus WMS has been adopted by scientists from different domains and has been integrated into end-user environments such as workflow composition tools and portals. The program of outreach and education facilitated by this award will expand the impact of Pegasus through tutorials, workshops, meetings with potential users, and online materials. The proposed interface enhancements will allow more end-user environments to leverage Pegasus? capabilities and will extend the impact of Pegasus to a broader spectrum of users.