ExternalPETScProblem.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

#include "ExternalProblem.h"
#include "PETScDiffusionFDM.h"
#include "ExternalPetscSolverApp.h"

class ExternalPETScProblem : public ExternalProblem
{
public:
  static InputParameters validParams();

  ExternalPETScProblem(const InputParameters & params);

  ~ExternalPETScProblem();

  virtual void externalSolve() override;
  virtual void syncSolutions(Direction /*direction*/) override;

  virtual bool converged(unsigned int) override { return _petsc_converged; }

  virtual void advanceState() override;

  virtual Real computeResidualL2Norm() override;

  Vec & solutionOld() { return _petsc_sol_old; }

  Vec & currentSolution() { return _petsc_sol; }

  Vec & udot() { return _petsc_udot; }

  TS & getPetscTS() { return _ts; }

private:
  const VariableName & _sync_to_var_name;
  PetscBool _petsc_converged;
  ExternalPetscSolverApp & _external_petsc_app;
  TS & _ts;
  Vec & _petsc_sol;
  Vec & _petsc_sol_old;
  Vec & _petsc_udot;
  Vec _petsc_rhs;
};