The effect of load imbalances on the performance of Monte Carlo algorithms in LWR analysis
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Author(s)
Siegel, A.R.
Smith, K.
Felker, K.
Romano, Paul Kollath
Forget, Benoit Robert Yves
Date Issued
June 2012
Journal
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
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/j.jcp.2012.06.012
