MFEMNonlinearSolverBase.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

#ifdef MOOSE_MFEM_ENABLED

#pragma once

#include "MFEMSolverBase.h"

#include "libmesh/ignore_warnings.h"
#include "mfem.hpp"
#include "libmesh/restore_warnings.h"

namespace Moose::MFEM
{
class NonlinearSolverBase : public SolverBase
{
public:
  virtual ~NonlinearSolverBase() = default;

  static InputParameters validParams();

  NonlinearSolverBase(const InputParameters & parameters);

  void ConstructSolver() override = 0;

  virtual void SetOperator(const mfem::Operator & op) = 0;

  virtual void SetLinearSolver(mfem::Solver & solver) = 0;

  virtual void Mult(const mfem::Vector & rhs, mfem::Vector & x) = 0;

  virtual bool RequiresGradient() const = 0;

  virtual bool RequiresExternalLinearSolver() const = 0;
};
} // namespace Moose::MFEM

#endif