Performance measurement of parallel Vlasov code for space plasma on scalar-type supercomputer systems with large number of cores
Performance measurement of parallel Vlasov code for space plasma on scalar-type supercomputer systems with large number of cores
复制标题
空间等离子体并行Vlasov代码在多核标量型超级计算机系统上的性能测量
DOI：
10.1007/978-3-642-45037-2_60
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
K. Fukazawa
中科院分区：
文献类型：
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作者：
T. Umeda;K. Fukazawa
空间等离子体是一种无碰撞、多尺度、高度非线性的介质。基于第一性原理动力学方程的计算机模拟是研究空间等离子体多尺度过程的基础。我们开发了一个并行的弗拉索夫（无碰撞玻尔兹曼）模拟代码的实际使用，目前现有的超级计算机系统。弱伸缩基准测试表明，我们的并行Vlasov代码实现了高性能和高可伸缩性。并行程序Vlasov被应用于空间等离子体中的各种物理问题，如流体尺度和粒子动力学尺度之间的跨尺度耦合。
Space plasma is a collisionless, multi-scale, and highly nonlinear medium. Computer simulations with the first-principle kinetic equation are essential for studying multi-scale processes in space plasma. We develop a parallel Vlasov (collisionless Boltzmann) simulation code for practical use on currently-existing supercomputer systems. The weak-scaling benchmark test shows that our parallel Vlasov code achieves a high performance and a high scalability. The parallel Vlasov code is applied to various physical problems in space plasma, such as cross-scale coupling between fluid scales and particle kinetic scales.