Line data    Source code

       1             : //* This file is part of the MOOSE framework
       2             : //* https://mooseframework.inl.gov
       3             : //*
       4             : //* All rights reserved, see COPYRIGHT for full restrictions
       5             : //* https://github.com/idaholab/moose/blob/master/COPYRIGHT
       6             : //*
       7             : //* Licensed under LGPL 2.1, please see LICENSE for details
       8             : //* https://www.gnu.org/licenses/lgpl-2.1.html
       9             : 
      10             : #ifdef MOOSE_MFEM_ENABLED
      11             : #pragma once
      12             : 
      13             : #include "MFEMObject.h"
      14             : #include "MFEMIndicator.h"
      15             : 
      16             : /**
      17             :  * Class to construct threshold refiner.
      18             :  * The underlying mfem::ThresholdRefiner needs to be initialised with a reference to the estimator.
      19             :  */
      20             : class MFEMRefinementMarker : public MFEMObject
      21             : {
      22             : public:
      23             :   static InputParameters validParams();
      24             : 
      25             :   MFEMRefinementMarker(const InputParameters & params);
      26             : 
      27          26 :   virtual ~MFEMRefinementMarker() = default;
      28             : 
      29             :   /// Constructs associated mfem::ThresholdRefiner once mfem::ErrorEstimator is guaranteed to exist
      30             :   void initialSetup();
      31             : 
      32             :   /// Applies p-refinement wherever the refiner sees fit
      33             :   bool pRefine();
      34             : 
      35             :   /// Applies h-refinement wherever the refiner sees fit
      36             :   bool hRefine();
      37             : 
      38             : protected:
      39             :   /// Unique pointer to underlying mfem::ThresholdRefiner object
      40             :   std::unique_ptr<mfem::ThresholdRefiner> _threshold_refiner;
      41             : 
      42             :   /// The estimator/indicator's name
      43             :   const std::string & _estimator_name;
      44             : 
      45             :   /// The error threshold determining which elements to refine
      46             :   const mfem::real_t _error_threshold;
      47             : 
      48             :   /// Whether to rebalance the mesh after h-refinement
      49             :   bool _rebalance;
      50             : 
      51             :   /// The max no. of times h-refinement can be performed
      52             :   const unsigned _max_h_level;
      53             : 
      54             :   /// The max no. of times h-refinement can be performed
      55             :   const unsigned _max_p_level;
      56             : 
      57             :   /// The no. of times h-refinement has been performed
      58             :   unsigned _h_ref_counter{0};
      59             : 
      60             :   /// The no. of times p-refinement has been performed
      61             :   unsigned _p_ref_counter{0};
      62             : 
      63             :   /// Pointer to the estimator/indicator
      64             :   const MFEMIndicator * _estimator{nullptr};
      65             : };
      66             : 
      67             : #endif