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Hierarchical visual analysis and steering framework for astrophysical simulations |
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| Authors: | Jian Xiao Jiawan Zhang Ye Yuan Xin Zhou Li Ji Jizhou Sun |
| Institution: | 1. School of Computer Science and Technology, Tianjin University, Tianjin, 300072, China 2. School of Software, Tianjin University, Tianjin, 300072, China 3. Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, 210008, China |
| Abstract: | A framework for accelerating modern long-running astrophysical simulations is presented, which is based on a hierarchical architecture where computational steering in the high-resolution run is performed under the guide of knowledge obtained in the gradually refined ensemble analyses. Several visualization schemes for facilitating ensemble management, error analysis, parameter grouping and tuning are also integrated owing to the pluggable modular design. The proposed approach is prototyped based on the Flash code, and it can be extended by introducing userdefined visualization for specific requirements. Two real-world simulations, i.e., stellar wind and supernova remnant, are carried out to verify the proposed approach. |
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