Particle pair method for improving peridynamics computation efficiency and its MPI parallelism
To avoid the increased computational cost and extra occupied memory caused by repeated calculations of the physical information between particles in the peridynamics method and overcome the constraints of the inefficient calculation process of peridynamics on its engineering application,this paper proposes a particle pair method(PPM)to improve the computational efficiency of PD and establishes its message passing interface(MPI)parallel strategy.First,the MPI parallel strategy on PPM is used to analyze the superiority of its calculation efficiency,and the engineering practicability of the method is illustrated by a large-scale engineering application example.The re-search results show that the method can improve computational efficiency and optimize the memory and computing time occupied by the neighbored particle information-storing array.PPM can be combined with MPI parallel pro-gramming to further improve its computing efficiency.In addition,in the case of more parallel threads,the calcula-tion efficiency is higher than that of the traditional OpenMP parallel method.In actual calculations,the speedup effect is also affected by the communication tasks between different threads.
万方数据
维普
