The effect of load imbalances on the performance of Monte Carlo algorithms in LWR analysis
Author(s)
Siegel, A.R.; Smith, K.; Felker, K.; Romano, Paul Kollath; Forget, Benoit Robert Yves
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A model is developed to predict the impact of particle load imbalances on the performance of domain-decomposed Monte Carlo neutron transport algorithms. Expressions for upper bound performance “penalties” are derived in terms of simple machine characteristics, material characterizations and initial particle distributions. The hope is that these relations can be used to evaluate tradeoffs among different memory decomposition strategies in next generation Monte Carlo codes, and perhaps as a metric for triggering particle redistribution in production codes.
Date issued
2012-06Department
Massachusetts Institute of Technology. Department of Nuclear Science and EngineeringJournal
Journal of Computational Physics
Publisher
Elsevier
Citation
Siegel, A.R. et al. “The Effect of Load Imbalances on the Performance of Monte Carlo Algorithms in LWR Analysis.” Journal of Computational Physics 235 (2013): 901–911.
Version: Author's final manuscript
ISSN
00219991