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Development of Parallel 3D Discrete Ordinates Transport Program on JASMIN Framework


Documents: Full paper available in Conference Proceedings.
 
Date: Monday October 19
Time:15:50 - 16:15
 
Session:1B2: Modelling & Simulation II
 
Authors: Tangpei Cheng (Institute of Applied Physics and Computational Mathematics, China)
Junxia Wei (Institute of Applied Physics and Computational Mathematics, China)
Huayun Shen (Institute of Applied Physics and Computational Mathematics, China)
Bin Zhong (Institute of Applied Physics and Computational Mathematics, China)
Li Deng (Institute of Applied Physics and Computational Mathematics, China)
Abstract:

A parallel 3D discrete ordinates radiation transport code JSNT-S is developed, aiming at simulating real-world radiation shielding and reactor physics applications in a reasonable time. Through the patch-based domain partition algorithm, the memory requirement is shared among processors and a space-angle parallel sweeping algorithm is developed based on data-driven algorithm. Acceleration methods such as partial current rebalance are implemented. The correctness is proved through the VENUS-3 and other benchmark models. In the radiation shielding calculation of the Qinshan-II reactor pressure vessel model with 24.3 billion DoF, only 88 seconds is required and the overall parallel efficiency of 44% is achieved on 1536 CPU cores.

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