SeisSol as a Community Code for Reproducible Computational Seismology - CoCoReCS

SeisSol 作为可重复计算地震学的社区代码 - CoCoReCS

• 批准号: 391134334
• 负责人: Professor Dr. Michael Bader
• 金额: --
• 依托单位: Leibniz-Rechenzentrum
• 依托单位国家: 德国
• 项目类别: Research data and software (Scientific Library Services and Information Systems)
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/391134334?language=en
• 关键词: SeisSol; Community; Code; Reproducible; Computational

The software package SeisSol (www.seissol.org) enables the simulation of complex problems in computational seismology with high-order accuracy on high-performance computing platforms. SeisSol has excellent potential for a wide range of applications with high impact on society and industry, such as the simulation of induced earthquakes (by geothermal power plants or CO2 storage processes, e.g.) and physics-based seismic hazard assessment.A particularly successful use-case is the multi-physics simulation of the non-linear dynamic rupture process of earthquakes coupled to the resulting seismic wave propagation in geometrically complex, highly detailed models -- such as the 2004 Sumatra-Andaman Megathrust Earthquake.In 2015, SeisSol has been released as an open-source project (github.com/SeisSol).While several pilot users have taken up the software, the following three issues have been identified to hinder a widespread adoption of SeisSol by Earth scientists:(1) Generating suitable unified geometric (CAD) model representations and high-quality discretisation meshes for SeisSol is, in general, a challenging task, which only recently became feasible.(2) While SeisSol is available as open-source (incl. a versatile software infrastructure and documentation), it still lacks installation support, tutorials and usage examples that guide potential users which are in general not highly experienced in high performance computing approaches. (3) For a widespread acceptance of SeisSol in the community it needs to provide an open platform to host reproducible simulation scenarios -- from established benchmarks for code validation, successful implementation of specific modelling requirements to production-ready scenarios allowing on-demand urgent simulations.In this project, we want to tackle all three roadblocks:(1) Provide a well-documented workflow to generate meshes of complex Earth structures, using commercial and open-source CAD and meshing software.(2) Establish training material and (face-to-face and online) introduction courses for potential users in the Computational Seismology community. (3) Design and install an infrastructure that maintains a wide range of reproducible simulation scenarios, ranging from benchmark simulations for constant software validation to scenarios that allow production runs for seismic hazard assessment. The best practices we will establish are of particular interest for supercomputing centres, which currently lack procedures for maintaining simulation software together with model scenarios and input data for real-time computation.

软件包 SeisSol (www.seissol.org) 能够在高性能计算平台上以高阶精度模拟计算地震学中的复杂问题。 SeisSol 在对社会和工业产生重大影响的广泛应用中具有巨大的潜力，例如诱发地震的模拟（例如通过地热发电厂或二氧化碳储存过程）和基于物理的地震危险评估。一个特别成功的用途-案例是在几何复杂、高度详细的模型中对地震的非线性动态破裂过程与由此产生的地震波传播进行的多物理场模拟，例如 2004 年苏门答腊-安达曼巨型逆冲断层地震。2015 年，SeisSol 作为开源项目发布 (github.com/SeisSol)。虽然一些试点用户已经使用了该软件，但已发现以下三个问题阻碍了地球科学家广泛采用 SeisSol ：(1) 为 SeisSol 生成合适的统一几何 (CAD) 模型表示和高质量离散化网格通常是一项具有挑战性的任务，直到最近才变得可行。(2) 虽然 SeisSol以开源形式提供（包括一个多功能的软件基础设施和文档），但它仍然缺乏指导潜在用户的安装支持、教程和使用示例，这些用户通常在高性能计算方法方面经验不足。 (3) 为了在社区中广泛接受 SeisSol，它需要提供一个开放平台来托管可重复的仿真场景 - 从已建立的代码验证基准、特定建模要求的成功实施到允许按需紧急仿真的生产就绪场景在这个项目中，我们希望解决所有三个障碍：(1) 提供记录良好的工作流程，使用商业和开源 CAD 和网格划分软件生成复杂地球结构的网格。(2) 建立培训材料和为计算地震学社区的潜在用户提供（面对面和在线）介绍课程。 (3) 设计和安装一个基础设施，以维护各种可重复的模拟场景，从用于持续软件验证的基准模拟到允许生产运行以进行地震灾害评估的场景。我们将建立的最佳实践对超级计算中心特别感兴趣，这些中心目前缺乏维护模拟软件以及模型场景和实时计算输入数据的程序。