Panzer_Integrator_GradBasisCrossVector_decl.hpp

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#ifndef   PANZER_EVALUATOR_GRADBASISCROSSVECTOR_DECL_HPP
#define   PANZER_EVALUATOR_GRADBASISCROSSVECTOR_DECL_HPP

//
//  Include Files
//

// C++
#include <string>

// Kokkos
#include "Kokkos_DynRankView.hpp"

// Panzer
#include "Panzer_EvaluatorStyle.hpp"
#include "Panzer_Evaluator_WithBaseImpl.hpp"

// Phalanx
#include "Phalanx_Evaluator_Derived.hpp"
#include "Phalanx_MDField.hpp"

namespace panzer
{
  template<typename EvalT, typename Traits>
  class Integrator_GradBasisCrossVector
    :
    public panzer::EvaluatorWithBaseImpl<Traits>,
    public PHX::EvaluatorDerived<EvalT, Traits>
  {
    public:

      Integrator_GradBasisCrossVector(
        const panzer::EvaluatorStyle&        evalStyle,
        const std::vector<std::string>&      resNames,
        const std::string&                   vecName,
        const panzer::BasisIRLayout&         basis,
        const panzer::IntegrationRule&       ir,
        const double&                        multiplier = 1,
        const std::vector<std::string>&      fmNames    =
          std::vector<std::string>(),
        const Teuchos::RCP<PHX::DataLayout>& vecDL      = Teuchos::null);

      Integrator_GradBasisCrossVector(
        const Teuchos::ParameterList& p);

      void
      postRegistrationSetup(
        typename Traits::SetupData d,
        PHX::FieldManager<Traits>& fm);

      void
      evaluateFields(
        typename Traits::EvalData d);

      template<int NUM_FIELD_MULT>
      struct FieldMultTag
      {
      }; // end of struct FieldMultTag

      template<int NUM_FIELD_MULT>
      KOKKOS_INLINE_FUNCTION
      void
      operator()(
        const FieldMultTag<NUM_FIELD_MULT>& tag,
        const std::size_t&                  cell) const;

    private:

      Teuchos::RCP<Teuchos::ParameterList>
      getValidParameters() const;

      using ScalarT = typename EvalT::ScalarT;

      const panzer::EvaluatorStyle evalStyle_;

      std::vector<PHX::MDField<ScalarT,Cell,BASIS>> fields_host_;
      using InnerView = PHX::UnmanagedView<ScalarT**>;
      using OuterView = PHX::View<InnerView*>;
      OuterView fields_;

      PHX::MDField<const ScalarT, Cell, IP, Dim> vector_;

      double multiplier_;

      std::vector<PHX::MDField<const ScalarT, Cell, IP>> fieldMults_;

      PHX::View<PHX::UnmanagedView<const ScalarT**>*> kokkosFieldMults_;

      int numDims_;

      int numGradDims_;

      std::string basisName_;

      std::size_t basisIndex_;

      PHX::MDField<double, panzer::Cell, panzer::BASIS, panzer::IP, panzer::Dim> basis_;

  }; // end of class Integrator_GradBasisCrossVector

} // end of namespace panzer

#endif // PANZER_EVALUATOR_GRADBASISCROSSVECTOR_DECL_HPP