Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Performance Impact of Newton Iterations per Solver Call in
  Partitioned Fluid-Structure Interaction   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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The categories of this paper are: nucl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-lat
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The categories of this paper are: stat
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The categories of this paper are: hep-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: supr-con
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The categories of this paper are: math-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: solv-int
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The categories of this paper are: bayes-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
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The categories of this paper are: astro-ph