Split.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html

#pragma once

// MOOSE includes
#include "MooseEnum.h"
#include "MooseObject.h"
#include "PetscSupport.h"
#include "Restartable.h"

// Forward declarations
class FEProblemBase;
class NonlinearSystemBase;

class Split : public MooseObject, public Restartable
{
public:
  static InputParameters validParams();

  Split(const InputParameters & parameters);
  virtual ~Split() = default;

  virtual void setup(NonlinearSystemBase & nl, const std::string & prefix = "-");

protected:
  enum SplittingType
  {
    SplittingTypeAdditive,
    SplittingTypeMultiplicative,
    SplittingTypeSymmetricMultiplicative,
    SplittingTypeSchur
  };

  FEProblemBase & _fe_problem;

  std::vector<NonlinearVariableName> _vars;

  std::vector<SubdomainName> _blocks;
  std::vector<BoundaryName> _sides;
  std::vector<BoundaryName> _unsides;

  std::vector<std::string> _splitting;

  MooseEnum _splitting_type;
  MooseEnum _schur_type;
  MooseEnum _schur_pre;
};