Parallel partial current rebalance algorithm for neutron transport simulation

Cheng Tangpei; Zhang Guangchun; Wei Junxia; Deng Li

doi:10.11884/HPLPB201729.160269

Volume 29 Issue 09

Sep. 2017

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Article Navigation > High Power Laser and Particle Beams > 2017 > 29(09): 096004

Zhang Manzhou, Wang Kun, Zhang Qinglei, et al. Compensations of double elliptical polarization undulator effects on the SSRF storage ring[J]. High Power Laser and Particle Beams, 2017, 29: 075103. doi: 10.11884/HPLPB201729.170014

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Cheng Tangpei, Zhang Guangchun, Wei Junxia, et al. Parallel partial current rebalance algorithm for neutron transport simulation[J]. High Power Laser and Particle Beams, 2017, 29: 096004. doi: 10.11884/HPLPB201729.160269

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Parallel partial current rebalance algorithm for neutron transport simulation

doi: 10.11884/HPLPB201729.160269

1.
Institute of Applied Physics and Computational Mathematics,Beijing 100088,China;
2.
CAEP Software Center for High Performance Numerical Simulation,Beijing 100088,China

Received Date: 2016-06-16
Rev Recd Date: 2017-03-10
Publish Date: 2017-09-15

Abstract

Abstract

To accelerate neutron transport calculation using discrete ordinates method, this paper presents a parallel partial current rebalance(PCR) algorithm based on domain decomposition, which is coupled with algebraic multigrid solver. The parallel PCR algorithm has been integrated in JSNT software and its correctness and effectiveness have been verified by typical critical and extraneous source calculation. In the pressure vessel shielding calculation of the pressurized water reactor in China, the iteration number and total computing time are decreased by more than 3 and 2 times respectively, the parallel efficiency on 1024 cores is 42.8%.
- source iteration acceleration,
- partial current rebalance algorithm,
- parallel algorithm,
- discrete ordinates method,
- radiation shielding calculation

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