Distributed Memory Algorithms for Weight Cancellation in Monte Carlo Particle Transport Simulations
Recent literature has demonstrated use cases for Monte Carlo transport simulations where particles can have statistical weights that are positive or negative. There are even examples which require particles to have complex statistical weights, and the real and imaginary components can be positive or...
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| Vydáno v: | EPJ Web of conferences Ročník 302; s. 9007 |
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| Hlavní autoři: | , |
| Médium: | Journal Article Konferenční příspěvek |
| Jazyk: | angličtina |
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Les Ulis
EDP Sciences
01.01.2024
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| ISSN: | 2100-014X, 2101-6275, 2100-014X |
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| Abstract | Recent literature has demonstrated use cases for Monte Carlo transport simulations where particles can have statistical weights that are positive or negative. There are even examples which require particles to have complex statistical weights, and the real and imaginary components can be positive or negative. In such cases, weight cancellation algorithms can be very efficient at reducing the variance, or might even be required for a simulation to converge. Previous works that have employed weight cancellation in distributed memory simulations required that all fission particles be sent to a single node for the cancellation operation. This work examines possible implementations of distributed memory weight cancellation algorithms that do not require the transfer of the fission source to a single node. |
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| AbstractList | Recent literature has demonstrated use cases for Monte Carlo transport simulations where particles can have statistical weights that are positive or negative. There are even examples which require particles to have complex statistical weights, and the real and imaginary components can be positive or negative. In such cases, weight cancellation algorithms can be very efficient at reducing the variance, or might even be required for a simulation to converge. Previous works that have employed weight cancellation in distributed memory simulations required that all fission particles be sent to a single node for the cancellation operation. This work examines possible implementations of distributed memory weight cancellation algorithms that do not require the transfer of the fission source to a single node. |
| Author | Belanger, Hunter Grablevsky, Nicholas |
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| Cites_doi | 10.1016/j.apradiso.2011.11.037 10.1016/j.anucene.2016.11.035 10.1103/PhysRevE.106.025302 10.1016/j.anucene.2012.06.025 10.13182/NSE10-98 10.13182/NSE72-1 10.1080/00295639.2022.2126719 10.1016/j.anucene.2018.12.023 10.1016/j.anucene.2013.03.002 10.1103/PhysRevE.104.015306 10.1016/j.anucene.2016.12.003 10.1080/00295639.2022.2091906 10.13182/NSE09-62 |
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| DOI | 10.1051/epjconf/202430209007 |
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| SubjectTerms | Algorithms Cancellation Computer simulation Distributed memory Fission Simulation |
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