论文标题
稳定的最佳运输网格（OTM）的平行多物理模拟
Parallel Multiphysics Simulation for the Stabilized Optimal Transportation Meshfree (OTM)
论文作者
论文摘要
本文为大型CPU群集上的最佳传输网格（OTM）方法提供了一个并行\ pg {实现}。通信通过消息传递接口（MPI）处理。递归坐标分分线（RCB）算法用于域分解和实施动态负载平衡策略。这项工作涉及三个新概念，以减少计算工作：动态光环区域，有效的数据管理策略，可使用高级STL容器易于添加和删除节点和材料点，以及最近的邻居通信以检测邻居和通信。此外，已经实施了链接的细胞方法，以进一步减少计算工作。研究了对泰勒杆撞击和锯齿状芯片形成过程等挑战多物理应用的平行性能分析。报告了这些应用程序的并行实施的足够可伸缩性。
This paper presents a parallel \PG{implementation} for the Optimal Transportation Meshfree (OTM) method on large CPU clusters. Communications are handled with the Message Passing Interface (MPI). The Recursive Coordinate Bisection (RCB) algorithm is utilized for domain decomposition and for implementing dynamic load-balancing strategy. This work involves three new concepts to reduce the computational efforts: Dynamic halo regions, Efficient data management strategies for ease of addition and deletion of nodes and material points using advanced STL container, and nearest neighborhood communication for detection of neighbors and communication. Also, Linked Cell approach has been implemented to further reduce the computational efforts. Parallel performance analysis is investigated for challenging multiphysics applications like Taylor rod impact and serrated chip formation process. Adequate scalability of parallel implementation for these applications is reported.
