AdjointTransientSolve.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 "AdjointSolve.h"
#include "Restartable.h"

class AdjointTransientSolve : public AdjointSolve, public Restartable
{
public:
  AdjointTransientSolve(Executioner & ex);

  static InputParameters validParams();

  virtual bool solve() override;

  void insertForwardSolution(int tstep);

  void setForwardSolution(int tstep);

protected:
  virtual void assembleAdjointSystem(SparseMatrix<Number> & matrix,
                                     const NumericVector<Number> & solution,
                                     NumericVector<Number> & rhs) override;

  void evaluateTimeResidual(const NumericVector<Number> & solution,
                            NumericVector<Number> & residual);

  static std::string getForwardSolutionName(int tstep)
  {
    return "forward_solution" + std::to_string(tstep);
  }

private:
  NumericVector<Number> & _old_time_residual;
  std::vector<std::string> & _forward_solutions;
};