Large Scale GPU Accelerated PPMLR-MHD Simulations for Space Weather Forecast
文献类型：会议论文
| 作者 | Guo, Xiangyu; Tang, Binbin; Tao, Jian; Huang, Zhaohui; Du, Zhihui |
| 出版日期 | 2016 |
| 会议名称 | 16th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid) |
| 会议日期 | MAY 16-19, 2016 |
| 会议地点 | Cartagena, COLOMBIA |
| 关键词 | CUDA Space Weather Forecast PPMLR-MHD CUDA-aware MPI |
| 页码 | 576-581 |
| 通讯作者 | Du, ZH (reprint author), Tsinghua Univ, Dept Comp Sci & Technol, Tsinghua Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China. |
| 英文摘要 | PPMLR-MHD is a new magnetohydrodynamics (MHD) model used to simulate the interactions of the solar wind with the magnetosphere, which has been proved to be the key element of the space weather cause-and-effect chain process from the Sun to Earth. Compared to existing MHD methods, PPMLR-MHD achieves the advantage of high order spatial accuracy and low numerical dissipation. However, the accuracy comes at a cost. On one hand, this method requires more intensive computation. On the other hand, more boundary data is subject to be transferred during the process of simulation. In this work, we present a parallel hybrid solution of the PPMLR-MHD model implemented using the computing capabilities of both CPUs and GPUs. We demonstrate that our optimized implementation alleviates the data transfer overhead by using GPU Direct technology and can scale up to 151 processes and achieve significant performance gains by distributing the workload among the CPUs and GPUs on Titan at Oak Ridge National Laboratory. The performance results show that our implementation is fast enough to carry out highly accurate MHD simulations in real time. |
| 收录类别 | CPCI |
| 会议主办者 | IEEE, Assoc Comp Machinery, Univ Ios Andes, Univ Ind Santander, Rensselaer, IEEE Comp Soc Tech Comm Scalable Comp |
| 会议录 | 2016 16TH IEEE/ACM INTERNATIONAL SYMPOSIUM ON CLUSTER, CLOUD AND GRID COMPUTING (CCGRID)
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| 会议录出版者 | IEEE |
| 语种 | 英语 |
| ISSN号 | 2376-4414 |
| ISBN号 | 978-1-5090-2453-7 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/5577]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Guo, Xiangyu,Tang, Binbin,Tao, Jian,et al. Large Scale GPU Accelerated PPMLR-MHD Simulations for Space Weather Forecast[C]. 见:16th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid). Cartagena, COLOMBIA. MAY 16-19, 2016. |
入库方式： OAI收割
来源：国家空间科学中心
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