PetscSolver.hpp

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/*
 * ------------------------------------------------------------------------------------------------------------
 * SPDX-License-Identifier: LGPL-2.1-only
 *
 * Copyright (c) 2018-2020 Lawrence Livermore National Security LLC
 * Copyright (c) 2018-2020 The Board of Trustees of the Leland Stanford Junior University
 * Copyright (c) 2018-2020 TotalEnergies
 * Copyright (c) 2019-     GEOSX Contributors
 * All rights reserved
 *
 * See top level LICENSE, COPYRIGHT, CONTRIBUTORS, NOTICE, and ACKNOWLEDGEMENTS files for details.
 * ------------------------------------------------------------------------------------------------------------
 */
 
#ifndef GEOS_LINEARALGEBRA_INTERFACES_PETSCSOLVER_HPP_
#define GEOS_LINEARALGEBRA_INTERFACES_PETSCSOLVER_HPP_
 
#include "linearAlgebra/interfaces/petsc/PetscInterface.hpp"
#include "linearAlgebra/interfaces/petsc/PetscPreconditioner.hpp"
#include "common/LinearSolverBase.hpp"
 
extern "C" struct _p_KSP;
 
namespace geos
{
 
class PetscSolver final : public LinearSolverBase< PetscInterface >
{
public:
 
  using Base = LinearSolverBase< PetscInterface >;
 
  explicit PetscSolver( LinearSolverParameters parameters );
 
  virtual ~PetscSolver();
 
  virtual void setup( PetscMatrix const & mat ) override;
 
  virtual void apply( PetscVector const & src,
                      PetscVector & dst ) const override;
 
  virtual void solve( PetscVector const & rhs,
                      PetscVector & sol ) const override;
 
  virtual void clear() override;
 
private:
 
  using KSP = struct _p_KSP *;
 
  using Base::m_params;
  using Base::m_result;
 
  PetscPreconditioner m_precond;
 
  KSP m_solver{};
};
 
} // end geosx namespace
 
#endif /* PETSCSOLVER_HPP_ */