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Yt: A multi-code analysis toolkit for astrophysical simulation data

机译:Yt:用于天体物理模拟数据的多代码分析工具包

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摘要

The analysis of complex multiphysics astrophysical simulations presents a unique and rapidly growing set of challenges: reproducibility, parallelization, and vast increases in data size and complexity chief among them. In order to meet these challenges, and in order to open up new avenues for collaboration between users of multiple simulation platforms, we present yt (available at http://yt.enzotools.org/) an open source, communitydeveloped astrophysical analysis and visualization toolkit. Analysis and visualization with yt are oriented around physically relevant quantities rather than quantities native to astrophysical simulation codes. While originally designed for handling Enzo's structure adaptive mesh refinement data, yt has been extended to work with several different simulation methods and simulation codes including Orion, RAMSES, and FLASH. We report on its methods for reading, handling, and visualizing data, including projections, multivariate volume rendering, multidimensional histograms, halo finding, light cone generation, and topologically connected isocontour identification. Furthermore, we discuss the underlying algorithms yt uses for processing and visualizing data, and its mechanisms for parallelization of analysis tasks.
机译:复杂的多物理场天体模拟分析提出了一组独特且迅速增长的挑战:可再现性,并行化以及数据大小和复杂性的大幅增长,这是其中的主要挑战。为了迎接这些挑战,并为在多个模拟平台的用户之间进行协作开辟新途径,我们向yt(可从http://yt.enzotools.org/提供)是开源的,社区开发的天体物理分析和可视化工具包。 yt的分析和可视化围绕物理相关量而不是天体模拟代码固有的量进行。 yt最初是为处理Enzo的结构自适应网格细化数据而设计的,但现在已扩展为可与多种不同的仿真方法和仿真代码一起使用,包括Orion,RAMSES和FLASH。我们报告了其用于读取,处理和可视化数据的方法,包括投影,多元体积渲染,多维直方图,晕轮发现,光锥生成以及拓扑连接的等高线识别。此外,我们讨论了用于处理和可视化数据的基本算法,以及用于并行分析任务的机制。

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