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Enabling Large-Scale Depletion in Serpent 2 Monte Carlo Code by Collision-Based Domain Decomposition

    • Lappeenranta-Lahti University of Technology LUT
    • Karlsruhe Institute of Technology (KIT)

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    High-performance computing enables large-scale high-fidelity calculations. However, depletion calculations in neutron transport Monte Carlo demand massive memory resources. Consequently, a memory scalability methodology to overcome such bottleneck has been developed. The proposed approach, implemented in the Serpent 2 Monte Carlo code, is based on data decomposition for burnable materials and a domain decomposition particle-tracking algorithm, under a hybrid MPI-OpenMP parallel scheme. The collision-based domain decomposition (CDD) feature has initially been tested in PWR-like systems, showing memory scalability and computational performance. This work presents further analysis for a pin-by-pin full-core depletion calculation for the BEAVRS PWR benchmark.
    Original languageEnglish
    Title of host publicationMathematics & Computation (M&C) 2021
    PublisherAmerican Nuclear Society (ANS)
    Pages88-99
    ISBN (Electronic)978-1-71388-631-0
    Publication statusPublished - 2021
    MoE publication typeA4 Article in a conference publication
    EventInternational Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M&C 2021 - Virtual, Raleigh, United States
    Duration: 11 Apr 202115 Apr 2021

    Publication series

    SeriesTransactions of the American Nuclear Society
    Number3141
    ISSN0003-018X

    Conference

    ConferenceInternational Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M&C 2021
    Country/TerritoryUnited States
    CityRaleigh
    Period11/04/2115/04/21

    Funding

    This work was partially funded by Fortum & Neste Foundation (Finland), under grant agreement No. 20190207 (2019) and No. 20200149 (2020) - SMR Safety Analysis and Design Framework.

    Keywords

    • domain decomposition
    • high-performance computing
    • large-scale depletion
    • Serpent 2

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