AstroPhi: A code for complex simulation of the dynamics of astrophysical objects using hybrid supercomputers

Abstract We propose a new code named AstroPhi for simulation of the dynamics of astrophysical objects on hybrid supercomputers equipped with Intel Xenon Phi computation accelerators. The details of parallel implementation are described, as well as changes to the computational algorithm that facilitate efficient parallel implementation. A single Xeon Phi accelerator yielded 27-fold acceleration. The use of 32 Xeon Phi accelerators resulted in 94% parallel efficiency. Several collapse problems are... Title of program: AstroPhi Catalogue Id: AEUM_v1_0 Nature of problem Complex numerical simulation of dynamics of astrophysical objects plays an important role due to significant growth of observational astronomic data. The new astrophysical models and codes need to be developed for detailed simulation of different physical effects in astrophysics with the use of modern supercomputers with hybrid architecture. Versions of this program held in the CPC repository in Mendeley Data AEUM_v1_0; AstroPhi; 10.1016/j.cpc.2014.09.004 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)

摘要 本研究提出一款名为AstroPhi的新型程序代码，用于在搭载英特尔至强融核（Xeon Phi）计算加速器的混合架构超级计算机上开展天体物理对象的动力学模拟。本文详述了其并行实现细节，以及为适配高效并行运行而优化的计算算法。单块Xeon Phi加速器可实现27倍的性能加速；当使用32块Xeon Phi加速器时，并行效率可达94%。本程序已针对若干坍缩问题开展相关研究……

程序名称：AstroPhi；目录编号：AEUM_v1_0

问题属性：随着天文观测数据的显著增长，天体物理过程的复杂数值模拟在天体物理研究中具有重要意义。为借助混合架构的现代超级计算机，对天体物理学中的各类物理效应开展精细化模拟，亟需开发新型天体物理模型与程序代码。

收录于孟德尔数据（Mendeley Data）平台的CPC程序库中的本程序版本：AEUM_v1_0；AstroPhi；10.1016/j.cpc.2014.09.004

本程序源自贝尔法斯特女王大学托管的CPC程序库（1969-2018）