Development and Application of a Problem Specific Parallel Programming Environment for Marine Seismic Tomography

Toomey 9522531这项研究是俄勒冈州大学的地震学家和计算机科学家之间的合作努力，旨在为海洋地震层析成像开发一个高性能计算（HPC）环境，并通过将其应用于北纬9度30分东太平洋隆起（EPR）的现有延迟时间数据来测试该环境。 该项目将为地震学家开发一个针对特定问题的编程环境（PSPE），最初是围绕现有的层析成像代码设计的。 该环境将扩展基础设施（已经由PI开发），支持“可观察性模型”，以实现编程语言级别的统一工具交互。 这些扩展将把模型抽象提升到应用级别，为地震学家提供一个熟悉的环境，以便与开发工具进行交互。 首先将通过将其应用于EPR的延迟时间数据来测试该环境。 这些数据已经在出版物中进行了分析，解决了轴向岩浆房的速度和衰减结构，但图像的P波速度结构的努力只集中在上地壳sect.显着的性能改进的代码，将首次允许完整的数据集的模拟分析，从而在一个前所未有的全地壳的图像。

Toomey 9522531 This research which is a cooperative effort between seismologists and computer scientists at the University of Oregon - aims to develop a high performance computing (HPC) environment for marine seismic tomography and to test that environment by applying it to existing delay-time data from the east Pacific Rise (EPR) at 9 degrees 30 minutes north. This project will develop a problem-specific programming environment (PSPE) for seismologists, initially designed around an existing tomographic code. The environment will extend infrastructure (already developed by the PIs) that supports "models of observability " for uniform tool interaction at the programming language level. The extensions will raise the model abstractions to the applications level, giving the seismologist a familiar environment for interacting with development tools. The environment will be tested first by applying it to delay-time data from the EPR. This data has already been analyzed in publications addressing the velocity and attenuation structure of axial magma chambers but efforts to image the P wave velocity structure have focused only on the upper crustual sect. Significant performance improvements in the code will, for the first time, allow a simulations analysis of the complete data set, resulting in an unprecedented image of the full crustal.