The gridding algorithm classes provid patch hierarchy generation and regridding routines that apply to a variety of structured adaptive mesh refinement problems. Specifically, the gridding class can be used to generate individual levels in an AMR patch hierarchy at the beginning of a simulation and to regrid collections of levels during an adaptive calculation. Other classes are provided to apply different methods for selecting cells for refinement on the patch hierarchy. These include basic gradient detection and Richardson extrapolation.
The gridding class is coupled to application-specific routines that initialize data on new levels and identify cells for refinement on each level via the Strategy object-oriented design pattern. The gridding class is coupled to particular load balancing and cell clustering routines using this pattern as well.
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1.4.2