| HL-2A等离子体实时平衡重建的GPU并行化 |
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| 引用本文： | 马 瑞,夏 凡,凌 飞,李佳鲜. HL-2A等离子体实时平衡重建的GPU并行化[J]. 核聚变与等离子体物理, 2017, 37(2): 159-166. DOI: 10.16568/j.0254-6086.201702006 |
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| 作者姓名： | 马 瑞 夏 凡 凌 飞 李佳鲜 |
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| 作者单位： | (核工业西南物理研究院，成都 600041) |
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| 基金项目： | 国家磁约束核聚变能发展研究专项(2014GB107003) |
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| 摘 要： | 描述了HL-2A等离子体实时平衡重建的GPU并行化算法，主要包括G-S方程的并行化处理、三对角方程求解、网格边界磁通计算以及一系列矩阵相乘的并行加速。并行后，在129×129的网格下完成一次迭代计算需要约575μs。
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| 关 键 词： | HL-2A装置 平衡重建 图形处理器 通用计算架构 |
| 收稿时间： | 2016-11-03 |
GPU parallelization of HL-2A plasma real-time equilibrium reconstruction |
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| MA Rui,XIA Fan,LING Fei,LI Jia-xian. GPU parallelization of HL-2A plasma real-time equilibrium reconstruction[J]. Nuclear Fusion and Plasma Physics, 2017, 37(2): 159-166. DOI: 10.16568/j.0254-6086.201702006 |
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| Authors: | MA Rui XIA Fan LING Fei LI Jia-xian |
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| Affiliation: | (Southwestern Institute of Physics, Chengdu 610041) |
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| Abstract: | The GPU parallel algorithms of the HL-2A plasma real-time equilibrium reconstruction including parallel processing of G-S equation, an algorithm solving the tri-diagonal linear system efficiently in parallel, the computation of the flux on grid boundary points and some parallel speed-up for middle-scale matrix multiplication on GPU, were intoduced. After the parallelization, an equilibrium reconstruction iteration needs around 575μs with a 129×129 grid. |
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| Keywords: | HL-2A tokamak Equilibrium reconstruction GPU CUDA |
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