Parallel Computing of Laser Propulsion with Hypergraph Partitioning
As one of the most important methods to study laser propelled rocket,the numerical simulation of laser propulsion has drawn an ever increasing attention at present.Nevertheless,the traditional serial computing cannot satisfy the practical requirements because of high calculation precision,insatiable memory overhead and considerable computation time.In this paper,we study on a general algorithm for laser propulsion,and divide the computing domain by using a multilevel hypergraph partitioning algorithm.Furthermore,MPI allreduce,overlapping communication with computation and non blocking communication are adopted to decrease the communication time when dealing with global communication.Finally,parallel performance about two typical configurations on a China-made supercomputer shows the smallest value of speedup ratio is more than 123 when the number of processors is 256.In conclusion,our parallel method is effective and practical in numerical simulation of laser propulsion.
parallel computing numerical simulation laser propulsion multilevel hypergraph partitioning parallel performance
Yaoyuan Zeng Wentao Zhao Zhenghua Wang
Inst.of Computer Science,National Univ.of Defense Technology,Changsha 410073,China Laser Propulsion & Application Laboratory,Academy of Equipment,Beijing 101416,China
国际会议
郑州
英文
1643-1646
2013-10-19（万方平台首次上网日期，不代表论文的发表时间）