SI2-SSI: Collaborative Research: Einstein Toolkit Community Integration and Data Exploration

随着最近探测到引力波，一门新的天文学问世了。为了解释观测结果，对引力辐射源进行建模比以往任何时候都更加必要。爱因斯坦工具包项目的首要任务是为科学界提供一个可持续的核心计算工具软件平台，用于重点研究具有复杂的多尺度/多物理性质的天体物理系统，这些系统受爱因斯坦的广义相对论方程支配。爱因斯坦工具包项目的中心前提是创建一个广泛而充满活力的用户社区，一个跨学科合作成为常态而不是例外的社区，一个推动下一代高性能计算网络基础设施进步的社区。爱因斯坦工具包项目的主要目标是：为大幅度提高科学生产力开发软件工具，实现软件生态系统的可持续性，解决软件工程挑战，以及从一般相对论数值模拟中精选数据。该项目将通过两个主要活动领域实现其目标。关于软件生态系统及其可持续性，处理问题中任务流的调度器将被重新设计为更加通用并提高其性能。此外，还将开发新的软件模块，以扩大初始数据和物质来源的选择范围，并为需要用方程和数值方法进行高度实验的问题开发模块。一个新的广义相对论磁流体力学程序也将被集成到爱因斯坦工具包中。第二个活动领域涉及建立模拟数据存储库。该资料库将允许用户比较结果，贡献数据，测试引力波数据分析的创新想法和算法，并探索或发现引力辐射源中的新现象。爱因斯坦工具包项目中更广泛的影响工作将在两个主要活动领域进行组织。第一个涉及社区融合。该项目将支持一个易于使用的在线教程方案和一个讲习班/教程系列。该计划将帮助小组或个人调查人员熟悉工具包中的代码和模块，以及成为开发人员的途径。关于外展和教育，爱因斯坦工具包项目将使学生和博士后能够在数值相对论、计算天体物理学和计算机科学方面进行跨学科培训。这项努力将包括为涉及应用于引力物理和天体物理的计算主题的教育活动开发一个教学资源库。教育资源将适用于研究生和本科生的广义相对论和天体物理学的计算课程。该项目由计算机与信息科学与工程局的高级网络基础设施部和数学和物理科学局的物理部支持。

A new astronomy has arrived with the recent detection of gravitational waves. Modeling of sources of gravitational radiation is more than ever a critical necessity in order to interpret the observations. The project Einstein Toolkit has as overarching mission to provide the scientific community with a sustainable software platform of core computational tools for research focused on astrophysical systems endowed with complex multi-scale/multi-physics properties which are governed by Einstein's equations of General Relativity. The central premise of the project Einstein Toolkit is to create a broad and vibrant community of users, a community where interdisciplinary collaborations are the norm and not the exception, a community driving advances in the next generation of high-performance computing cyberinfrastructure. The main objectives of the project Einstein Toolkit are: developing software tools for a radical increase in scientific productivity, achieving sustainability of the software ecosystem, addressing software engineering challenges, and the curation of data from general relativistic numerical simulations. This project will achieve its goals through two major activity areas. Regarding the software ecosystem and its sustainability, the scheduler that handles the flow of tasks in a problem will be redesigned to be more versatile and to improve its performance. In addition new software modules will be developed to broaden the choices of initial data and matter sources, as well as modules for problems requiring a high degree of experimentation with equations and numerical methodologies. A new general relativistic magneto-hydrodynamics code will also be integrated in the Einstein Toolkit. The second activity area involves building a simulation data repository. The repository will allows user to compare results, contribute data, test innovative ideas and algorithms for gravitational wave data analysis, and to explore or discover new phenomena in sources of gravitational radiation. The broader impact effort in the project Einstein Toolkit will be organized in two major activity areas. The first involves community integration. The project will support a program of ease-of-use on-line tutorials and a workshops/tutorial series. The program will help small groups or individual investigators familiarizing with the codes and modules in the toolkit as well as pathways to become a developer. Regarding outreach and education, the project Einstein Toolkit will enable interdisciplinary training of students and postdocs in numerical relativity, computational astrophysics and computer science. The effort will includes developing a teaching resources bank for educational activities involving computational topics applied to gravitational physics and astrophysics. The educational resources will be suitable for computational courses in general relativity and astrophysics at both the graduate and undergraduate level.This project is supported by the Division of Advanced Cyberinfrastructure in the Directorate for Computer & Information Science & Engineering and the Physics Division in the Directorate of Mathematical and Physical Sciences.