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@@ -1455,6 +1455,101 @@ <h2 id="year2025" class="year">2025 <span class="count-stat"></span></h2>
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HahnEtAl2025
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<span id="HahnEtAl2025">R. Hahn and S. Schöps, “Multi-Level Monte Carlo sampling with Parallel-in-Time Integration for Uncertainty Quantification in Electric Machine Simulation,” arXiv:2507.19246v1 [cs.CE], 2025 [Online]. Available at: <a href="http://arxiv.org/abs/2507.19246v1" target="_blank">http://arxiv.org/abs/2507.19246v1</a></span>
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BibTeX entry <code>HahnEtAl2025</code>
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<pre class="abstract">@unpublished{HahnEtAl2025,
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author = {Hahn, Robert and Schöps, Sebastian},
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howpublished = {arXiv:2507.19246v1 [cs.CE]},
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title = {Multi-Level Monte Carlo sampling with Parallel-in-Time Integration for Uncertainty Quantification in Electric Machine Simulation},
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url = {http://arxiv.org/abs/2507.19246v1},
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year = {2025}
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While generally considered computationally expensive, Uncertainty Quantification using Monte Carlo sampling remains beneficial for applications with uncertainties of high dimension. As an extension of the naive Monte Carlo method, the Multi-Level Monte Carlo method reduces the overall computational effort, but is unable to reduce the time to solution in a sufficiently parallel computing environment. In this work, we propose a Uncertainty Quantification method combining Multi-Level Monte Carlo sampling and Parallel-in-Time integration for select samples, exploiting remaining parallel computing capacity to accelerate the computation. While effective at reducing the time-to-solution, Parallel-in-Time integration methods greatly increase the total computational effort. We investigate the tradeoff between time-to-solution and total computational effort of the combined method, starting from theoretical considerations and comparing our findings to two numerical examples. There, a speedup of 12 - 45% compared to Multi-Level Monte Carlo sampling is observed, with an increase of 15 - 18% in computational effort.
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