MueLu_GMRESSolver_decl.hpp

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// @HEADER
// *****************************************************************************
//        MueLu: A package for multigrid based preconditioning
//
// Copyright 2012 NTESS and the MueLu contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef MUELU_GMRESSOLVER_DECL_HPP
#define MUELU_GMRESSOLVER_DECL_HPP

#include <Xpetra_CrsMatrixFactory_fwd.hpp>
#include <Xpetra_CrsMatrixWrap_fwd.hpp>
#include <Xpetra_Matrix_fwd.hpp>

#include "MueLu_ConfigDefs.hpp"
#include "MueLu_SolverBase.hpp"
#include "MueLu_Constraint_fwd.hpp"
#include "MueLu_Utilities_fwd.hpp"

namespace MueLu {

template <class Scalar        = DefaultScalar,
          class LocalOrdinal  = DefaultLocalOrdinal,
          class GlobalOrdinal = DefaultGlobalOrdinal,
          class Node          = DefaultNode>
class GMRESSolver : public SolverBase<Scalar, LocalOrdinal, GlobalOrdinal, Node> {
#undef MUELU_GMRESSOLVER_SHORT
#include "MueLu_UseShortNames.hpp"

 public:


  GMRESSolver(size_t Its);




  void Iterate(const Matrix& A, const Constraint& C, const Matrix& P0, RCP<Matrix>& P) const;


 private:
  void givapp(SC* c, SC* s, SC* v, int k) const;

 private:
  size_t nIts_;  
};

}  // namespace MueLu

#define MUELU_GMRESSOLVER_SHORT
#endif  // MUELU_GMRESSOLVER_DECL_HPP