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math.OC2025
A Parallel-in-Time Multigrid Preconditioner for Optimal Control
Radoslav Vuchkov, Eric C. Cyr, Aurya Javeed +1
We develop a parallel-in-time multigrid preconditioner for augmented systems. These saddle-point systems are foundational to numerical optimization. Our preconditioner, when paired…
math.OC2024
R-Adaptive Mesh Optimization to Enhance Finite Element Basis Compression
Graham Harper, Denis Ridzal, Tim Wildey
Modern computing systems are capable of exascale calculations, which are revolutionizing the development and application of high-fidelity numerical models in computational science…