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The Performance Impact of Newton Iterations per Solver Call in Partitioned Fluid-Structure Interaction
Published 30 Jun 2021 in math.NA, cs.CE, and cs.NA | (2106.15930v1)
Abstract: The cost of a partitioned fluid-structure interaction scheme is typically assessed by the number of coupling iterations required per time step, while ignoring the Newton loops within the nonlinear sub-solvers. In this work, we discuss why these single-field iterations deserve more attention when evaluating the coupling's efficiency and how to find the optimal number of Newton steps per coupling iteration.
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