Teko_AdaptivePreconditionerFactory.hpp

// @HEADER
// *****************************************************************************
//      Teko: A package for block and physics based preconditioning
//
// Copyright 2010 NTESS and the Teko contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef __Teko_AdaptivePreconditionerFactory_hpp__
#define __Teko_AdaptivePreconditionerFactory_hpp__

#include "Teuchos_RCP.hpp"
#include "Teko_PreconditionerFactory.hpp"
#include "Teko_Utilities.hpp"

namespace Teko {

struct AdaptiveSolverSettings {
  int numAppliesCycle            = 100;
  double targetResidualReduction = 0.1;
};

class AdaptivePreconditionerFactory : public PreconditionerFactory {
 public:
  using SizeOrdinalType = Thyra::Ordinal;

  AdaptivePreconditionerFactory() = default;

  ~AdaptivePreconditionerFactory() override = default;

  LinearOp buildPreconditionerOperator(LinearOp& lo, PreconditionerState& state) const override;

  void initializeFromParameterList(const Teuchos::ParameterList& pl) override;

  const std::vector<Teuchos::RCP<InverseFactory>>& get_inverses() const { return inverses; }

  const std::vector<Teuchos::RCP<InverseFactory>>& get_preconditioners() const {
    return preconditioners;
  }

 private:
  std::vector<Teuchos::RCP<InverseFactory>> inverses;
  std::vector<Teuchos::RCP<InverseFactory>> preconditioners;
  std::vector<SizeOrdinalType> maximumSizes;
  AdaptiveSolverSettings settings{};
};

}  // end namespace Teko

#endif