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Application of Parallel Computation in Numerical Simulation of Laser Propulsion

机译:并行计算在激光推进数值模拟中的应用

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As for the problem of numerical simulation of laser propulsion of three dimensions and multi-sub domains, the domain decomposition strategy based on message passing mechanism is applied in this paper to realize parallelization. The cell-centered finite volume scheme is performed to solve Euler equation. A fivestep Runge-Kutta scheme of explicit integral model is used for time advancement. The spatial discretization of inviscid fluid is estimated by high-order Godunovtype scheme. We test some different examples on a cluster system and the results show the smallest number of speedup is more than 5.19 when the degree of parallelism is 8. In a word, parallel computation is an inevitable choice to achieve the aim of accelerating the study of the mechanism of laser propulsion.
机译:针对三维,多子域激光推进的数值模拟问题,本文采用基于消息传递机制的域分解策略,实现了并行化。执行以单元为中心的有限体积方案来求解欧拉方程。显式积分模型的五步Runge-Kutta方案用于时间提前。通过高阶Godunovtype方案估计无粘性流体的空间离散。我们在集群系统上测试了一些不同的示例,结果显示,当并行度为8时,最小加速比大于5.19。总而言之,并行计算是实现加速研究的必然选择。激光推进的机理。

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