Propagation pattern for moment representation of the lattice Boltzmann method.

Propagation pattern for moment representation of the lattice Boltzmann method.
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DOI:
10.1109/tpds.2021.3098456
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发表时间:
2022-03
影响因子:
5.3
通讯作者:
Randles, Amanda
Randles, Amanda
中科院分区:
计算机科学2区
文献类型:
--
作者:
Gounley, John;Vardhan, Madhurima;Draeger, Erik W.;Valero-Lara, Pedro;Moore, Shirley, V;Randles, Amanda

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本文给出了正则格子玻尔兹曼方法(LBM)矩量表示在三维空间中的传播模式。使用有效的无损压缩,模拟状态被存储为格子玻尔兹曼分布函数的一组矩,而不是分布函数本身。一个有效的缓存感知传播模式,这一刻表示的效果,大大减少了LBM模拟所需的存储和内存带宽。本文通过扩展中央处理器(CPU)架构的性能分析,考虑如何实现边界条件,并展示了图形处理器(GPU)架构上的矩表示的有效性,扩展了最近的工作与矩表示。
A propagation pattern for the moment representation of the regularized lattice Boltzmann method (LBM) in three dimensions is presented. Using effectively lossless compression, the simulation state is stored as a set of moments of the lattice Boltzmann distribution function, instead of the distribution function itself. An efficient cache-aware propagation pattern for this moment representation has the effect of substantially reducing both the storage and memory bandwidth required for LBM simulations. This paper extends recent work with the moment representation by expanding the performance analysis on central processing unit (CPU) architectures, considering how boundary conditions are implemented, and demonstrating the effectiveness of the moment representation on a graphics processing unit (GPU) architecture.
DOI: 10.1016/j.future.2003.12.010
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