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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2021, Vol. 42 ›› Issue (9): 625748-625748.doi: 10.7527/S1000-6893.2021.25748

• Special Topic of NNW Progress and Application • Previous Articles     Next Articles

High-performance flow parallel particle tracing data management system

YANG Changhe1,2, LI Yanda1,2, ZHANG Jiang3, WANG Fang4, YUAN Xiaoru1,2   

  1. 1. Key Laboratory of Machine Perception and Intelligence, Ministry of Education, School of Electronic Engineering and Computer Science, Peking University, Beijing 100871, China;
    2. National Engineering Laboratory of Big Data Analysis and Application Technology, Peking University, Beijing 100871, China;
    3. Peking University, Beijing 100871, China;
    4. Computational Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China
  • Received:2021-03-30 Revised:2021-05-06 Published:2021-05-24
  • Supported by:
    National Numerical Windtunnel Project

Abstract: With the current improvement in computing power and storage performance, the scale of flow data output is getting larger and larger, and the requirements for hardware and software algorithms for visualization applications of flow data have also increased. Supported by the National Numerical Windtunnel (NNW) Project, a high-performance flow parallel particle tracking data management system is developed to help users explore and analyze large-scale flow field data. The system provides a variety of efficient data management methods for flow data, and optimizes data prefetching and load balancing in the process of parallel particle tracing on supercomputer clusters. For the streamline (or pathline) and process work record data generated in the particle tracking process, the system supports users to conduct performance diagnosis and analysis on the local platform. Two cases using different flow field data sets verify the effectiveness of the system proposed.

Key words: visualization, scientific visualization, flow visualization, parallel particle tracing, National Numerical Windtunnel (NNW) Project, data management, visual analysis

CLC Number: