Algorithms and Scientific Computing for Gravitational Waves Source Modeling

该项目将开发和实施算法和科学计算工具，以高精度数值研究双黑洞（BH）、中子星（NS）或混合黑洞/NS对。它将把目前用于黑洞模拟的多域数值技术扩展到存在物质场和激波的情况。它还将研究在爱因斯坦方程的数值模拟中使用异构（特别是GPU）计算。该项目的结果将直接影响在现实时代对二元源的高精度模拟，因为需要为地球上的引力波探测器（如LIGO）生成引力波模板。在更广泛的背景下，这个项目的发展应该是有价值的学科，如计算流体动力学，空气动力学，声学，电磁学，以及异构计算和大规模模拟一般。

This project will develop and implement algorithmic and scientific computing tools to numerically investigate binary black holes (BH), neutron stars (NS) or mixed BH/NS pairs with high accuracy. It will extend multi-domain numerical techniques currently used in black hole simulations to cases in which matter fields and shocks are present. It will also investigate the use of heterogeneous (in particular, GPU) computing in numerical simulations of Einstein equations.The results of this project will have direct impact in high accuracy simulations of binary sources in realistic times, as needed for the generation of gravitational wave templates for earth-based gravitational wave detectors such as LIGO. In a broader context, the developments of this project should be of value to disciplines such as computational fluid dynamics, aerodynamics, acoustics, and electromagnetism, as well as heterogeneous computing and large-scale simulations in general.