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| intensity model with blur effect on gpus applied to large-scale star simulators | |
| Li Chao; Zhang Yun-Quan; Zheng Chang-Wen; Hu Xiao-Hui | |
| 2011 | |
| Source | Ruan Jian Xue Bao/Journal of Software
 |
| ISSN | 1000-9825 |
| Volume | 22Issue:UPPL. 2Pages:172-181 |
| English Abstract | Intensity model with blur effect is widely employed to accurately simulate the imaging process of star simulator used for attitude determination and guiding feedback. It imposes great demands of computing power for realistic domains, and modern Graphics Processing Units (GPUs) have demonstrated to be a powerful accelerator for this kind of computationally intensive simulations. This paper presents a parallel design and implementation of the intensity model applied to large-scale star simulators on GPUs using the compute unified device architecture (CUDA) programming model. The study analyzes the double parallel nature inherent in this model and use the CUDA framework to efficiently exploit the potential fine-grain data parallelism. Two versions of simulator are designed and studied: One is sequential simulator used as the baseline simulator, and another is parallel simulator using CUDA. In parallel strategy, model, and GPU implementation level, the study employs specific optimized strategies to efficiently improve the parallel performance. Finally, two benchmarks corresponding with the double parallelism are developed to fully evaluate the performance behavior of our simulators. The result analysis demonstrates the efficiency of the CUDA simulators and also illustrates the restriction and bottlenecks presented in this simulator. ©2011 Journal of Software.; Intensity model with blur effect is widely employed to accurately simulate the imaging process of star simulator used for attitude determination and guiding feedback. It imposes great demands of computing power for realistic domains, and modern Graphics Processing Units (GPUs) have demonstrated to be a powerful accelerator for this kind of computationally intensive simulations. This paper presents a parallel design and implementation of the intensity model applied to large-scale star simulators on GPUs using the compute unified device architecture (CUDA) programming model. The study analyzes the double parallel nature inherent in this model and use the CUDA framework to efficiently exploit the potential fine-grain data parallelism. Two versions of simulator are designed and studied: One is sequential simulator used as the baseline simulator, and another is parallel simulator using CUDA. In parallel strategy, model, and GPU implementation level, the study employs specific optimized strategies to efficiently improve the parallel performance. Finally, two benchmarks corresponding with the double parallelism are developed to fully evaluate the performance behavior of our simulators. The result analysis demonstrates the efficiency of the CUDA simulators and also illustrates the restriction and bottlenecks presented in this simulator. ©2011 Journal of Software. |
| Indexed Type | EI |
| Keyword | Benchmarking Parallel Architectures Parallel Programming Program Processors Stars |
| Department | (1) National Key Laboratory of Integrated Information System Technology Institute of Software Chinese Academy of Sciences Beijing 100190 China; (2) Laboratory of Parallel Software and Computational Science Institute of Software Chinese Academy of Sciences Beijing 100190 China; (3) Graduate University Chinese Academy of Sciences Beijing 100049 China |
| Language | 中文 |
| Content Type | 期刊论文 |
| URI | http://ir.iscas.ac.cn/handle/311060/16163 |
| Collection | 中国科学院软件研究所 |
| Recommended Citation GB/T 7714 | Li Chao,Zhang Yun-Quan,Zheng Chang-Wen,et al. intensity model with blur effect on gpus applied to large-scale star simulators[J]. Ruan Jian Xue Bao/Journal of Software,2011,22(UPPL. 2):172-181. |
| APA | Li Chao,Zhang Yun-Quan,Zheng Chang-Wen,&Hu Xiao-Hui.(2011).intensity model with blur effect on gpus applied to large-scale star simulators.Ruan Jian Xue Bao/Journal of Software,22(UPPL. 2),172-181. |
| MLA | Li Chao,et al."intensity model with blur effect on gpus applied to large-scale star simulators".Ruan Jian Xue Bao/Journal of Software 22.UPPL. 2(2011):172-181. |
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