int HYPRE_BoomerAMGSetStrongThreshold (HYPRE_Solver solver, double strong_threshold)

(Optional) Sets AMG strength threshold

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(Optional) Sets AMG strength threshold. The default is 0.25. For 2d Laplace operators, 0.25 is a good value, for 3d Laplace operators, 0.5 or 0.6 is a better value. For elasticity problems, a large strength threshold, such as 0.9, is often better.

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