A Fully Parallelized and Budgeted Multi-level Monte Carlo Framework

Postdoctoral Researcher
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KCDS Supervisors
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MATH Supervisor
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Abstract

My work is mostly about a novel variant of the multi-level Monte Carlo method that effectively utilizes a reserved computational budget on a high-performance computing system to minimize the mean squared error. Our approach combines concepts of the continuation multi-level Monte Carlo method with dynamic programming techniques following Bellman’s optimality principle, and a new parallelization strategy based on a single distributed data structure. Additionally, we have established a theoretical bound on the error reduction on a parallel computing cluster and generate empirical evidence that the proposed method adheres to this bound. We implement, test, and benchmark the approach on computationally demanding problems, focusing on its application to acoustic wave propagation in high-dimensional random media.