Nyx：一个用于计算宇宙学的大规模并行AMR程序
Nyx: A Massively Parallel AMR Code for Computational Cosmology
摘要：
我们提出了一个新的N体和气体动力学代码，称为Nyx，大尺度宇宙学模拟。尼克斯遵循时间演化系统的离散暗物质粒子引力耦合到一个无粘理想流体在一个不断膨胀的宇宙。气体是先进的欧拉框架与块结构的自适应网格细化（AMR）的粒子网格（PM）计划使用相同的网格层次结构来解决自重力和先进的粒子。计算结果表明验证Nyx的标准宇宙学测试问题，和Nyx的缩放行为，以50,000核心，提出。
英文摘要：
We present a new N-body and gas dynamics code, called Nyx, for large-scale cosmological simulations. Nyx follows the temporal evolution of a system of discrete dark matter particles gravitationally coupled to an inviscid ideal fluid in an expanding universe. The gas is advanced in an Eulerian framework with block-structured adaptive mesh refinement (AMR); a particle-mesh (PM) scheme using the same grid hierarchy is used to solve for self-gravity and advance the particles. Computational results demonstrating the validation of Nyx on standard cosmological test problems, and the scaling behavior of Nyx to 50,000 cores, are presented.
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