(Optional) Sets the number of levels for more complex smoothers
(Optional) Sets the number of levels for more complex smoothers. The smoothers, as defined by HYPRE_BoomerAMGSetSmoothType, will be used on level 0 (the finest level) through level smooth_num_levels-1. The default is 0, i.e. no complex smoothers are used.
alphabetic index hierarchy of classes
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