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Adaptive multirate integration of cardiac electrophysiology with spectral deferred correction methods

  • The highly localized dynamics of cardiac electrophysiology models call for adaptive simulation methods. Unfortunately, the overhead incurred by classical mesh adaptivity turns out to outweigh the performance improvements achieved by reducing the problem size. Here, we explore a different approach to adaptivity based on algebraic degree of freedom subset selection during spectral deferred correction sweeps, which realizes a kind of multirate higher order integration. Numerical experience indicates a significant performance increase compared to uniform simulations.
Author:Martin WeiserORCiD, Fatemeh Chegini
Document Type:In Proceedings
Parent Title (English):CMBE22 - 7th International Conference on Computational & Mathematical Biomedical Engineering
First Page:528
Last Page:531
Year of first publication:2022
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