Stratimikos_MueLuHelpers.hpp

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//        MueLu: A package for multigrid based preconditioning
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#ifndef STRATIMIKOS_MUELU_TPETRA_HELPERS_HPP
#define STRATIMIKOS_MUELU_TPETRA_HELPERS_HPP

#include "Stratimikos_DefaultLinearSolverBuilder.hpp"

#include "Thyra_MueLuPreconditionerFactory.hpp"
#include "Thyra_MueLuRefMaxwellPreconditionerFactory.hpp"

#if defined(HAVE_MUELU_EXPERIMENTAL) && defined(HAVE_MUELU_TEKO)
#include "Thyra_MueLuTpetraQ2Q1PreconditionerFactory.hpp"
#endif

#include "Teuchos_RCP.hpp"
#include "Teuchos_ParameterList.hpp"
#include "Teuchos_TestForException.hpp"
#include "Teuchos_AbstractFactoryStd.hpp"

#include <string>

namespace Stratimikos {

  // Dynamically register MueLu Tpetra adapters in Stratimikos
  // Note: No Scalar template argument is available because Stratimikos
  // does not support types beyond double
  template <typename LocalOrdinal = int, typename GlobalOrdinal = int, typename Node = KokkosClassic::DefaultNode::DefaultNodeType>
  void enableMueLu(DefaultLinearSolverBuilder& builder, const std::string& stratName = "MueLu")
  {
    const Teuchos::RCP<const Teuchos::ParameterList> precValidParams = Teuchos::sublist(builder.getValidParameters(), "Preconditioner Types");

    TEUCHOS_TEST_FOR_EXCEPTION(precValidParams->isParameter(stratName), std::logic_error,
                               "Stratimikos::enableMueLu cannot add \"" + stratName +"\" because it is already included in builder!");

    typedef Thyra::PreconditionerFactoryBase<double>                                     Base;
    typedef Thyra::MueLuPreconditionerFactory<double, LocalOrdinal, GlobalOrdinal, Node> Impl;

    builder.setPreconditioningStrategyFactory(Teuchos::abstractFactoryStd<Base, Impl>(), stratName);
  }

  // Dynamically register MueLu RefMaxwell adapters in Stratimikos
  // Note: No Scalar template argument is available because Stratimikos
  // does not support types beyond double
  template <typename LocalOrdinal = int, typename GlobalOrdinal = int, typename Node = KokkosClassic::DefaultNode::DefaultNodeType>
  void enableMueLuRefMaxwell(DefaultLinearSolverBuilder& builder, const std::string& stratName = "MueLuRefMaxwell")
  {
    const Teuchos::RCP<const Teuchos::ParameterList> precValidParams = Teuchos::sublist(builder.getValidParameters(), "Preconditioner Types");

    TEUCHOS_TEST_FOR_EXCEPTION(precValidParams->isParameter(stratName), std::logic_error,
                               "Stratimikos::enableMueLuRefMaxwell cannot add \"" + stratName +"\" because it is already included in builder!");

    typedef Thyra::PreconditionerFactoryBase<double>                                     Base;
    typedef Thyra::MueLuRefMaxwellPreconditionerFactory<double, LocalOrdinal, GlobalOrdinal, Node> Impl;

    builder.setPreconditioningStrategyFactory(Teuchos::abstractFactoryStd<Base, Impl>(), stratName);
  }

#if defined(HAVE_MUELU_EXPERIMENTAL) && defined(HAVE_MUELU_TEKO)
#if 0
  // Dynamically register MueLu Tpetra adapters in Stratimikos
  void enableMueLuTpetraQ2Q1(DefaultLinearSolverBuilder &builder, const std::string &stratName = "MueLu");
#endif

  // Dynamically register MueLu Tpetra adapters in Stratimikos
  // Note: No Scalar template argument is available because Stratimikos
  // does not support types beyond double
  template <typename LocalOrdinal, typename GlobalOrdinal, typename Node>
  void enableMueLuTpetraQ2Q1(DefaultLinearSolverBuilder& builder, const std::string &stratName = "MueLu") {
    const Teuchos::RCP<const Teuchos::ParameterList> precValidParams = Teuchos::sublist(builder.getValidParameters(), "Preconditioner Types");

    TEUCHOS_TEST_FOR_EXCEPTION(precValidParams->isParameter(stratName), std::logic_error,
                               "Stratimikos::enableMueLuTpetraQ2Q1 cannot add \"" + stratName +"\" because it is already included in builder!");

    typedef Thyra::PreconditionerFactoryBase<double>                                              Base;
    typedef Thyra::MueLuTpetraQ2Q1PreconditionerFactory<double, LocalOrdinal, GlobalOrdinal,Node> Impl;

    builder.setPreconditioningStrategyFactory(Teuchos::abstractFactoryStd<Base, Impl>(), stratName);
  }
#endif

} // namespace Stratimikos

#endif