Panzer_GatherTangent_Tpetra_decl.hpp

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//           Panzer: A partial differential equation assembly
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#ifndef PANZER_EVALUATOR_GATHER_TANGENT_TPETRA_DECL_HPP
#define PANZER_EVALUATOR_GATHER_TANGENT_TPETRA_DECL_HPP
 
#include "Phalanx_config.hpp"
#include "Phalanx_Evaluator_Macros.hpp"
#include "Phalanx_MDField.hpp"
#include "Phalanx_KokkosViewOfViews.hpp"
 
#include "Teuchos_ParameterList.hpp"
 
#include "PanzerDiscFE_config.hpp"
#include "Panzer_Dimension.hpp"
#include "Panzer_Traits.hpp"
#include "Panzer_CloneableEvaluator.hpp"
#include "Panzer_TpetraLinearObjContainer.hpp"
 
#include"Panzer_NodeType.hpp"
 
#include "Panzer_Evaluator_WithBaseImpl.hpp"
 
namespace panzer {
 
class GlobalIndexer; //forward declaration

template<typename EvalT,typename TRAITS,typename LO,typename GO,typename NodeT=panzer::TpetraNodeType>
class GatherTangent_Tpetra
  : public panzer::EvaluatorWithBaseImpl<TRAITS>,
    public PHX::EvaluatorDerived<EvalT, TRAITS>,
    public panzer::CloneableEvaluator  {
public:
 
  GatherTangent_Tpetra(const Teuchos::RCP<const panzer::GlobalIndexer> & indexer) :
     globalIndexer_(indexer) {}
 
  GatherTangent_Tpetra(const Teuchos::RCP<const panzer::GlobalIndexer> & indexer,
                        const Teuchos::ParameterList& p);
 
  void postRegistrationSetup(typename TRAITS::SetupData d,
                             PHX::FieldManager<TRAITS>& vm);
 
  void preEvaluate(typename TRAITS::PreEvalData d);
 
  void evaluateFields(typename TRAITS::EvalData d);
 
  virtual Teuchos::RCP<CloneableEvaluator> clone(const Teuchos::ParameterList & pl) const
  { return Teuchos::rcp(new GatherTangent_Tpetra<EvalT,TRAITS,LO,GO,NodeT>(globalIndexer_,pl)); }
 
  // for testing purposes
  const PHX::FieldTag & getFieldTag(int i) const
  { TEUCHOS_ASSERT(i < Teuchos::as<int>(gatherFields_.size())); return gatherFields_[i].fieldTag(); }
 
private:
 
  // We always use RealType for gathering as we never compute derivatives for this evaluator
  typedef typename panzer::Traits::RealType ScalarT;
  //typedef typename EvalT::ScalarT ScalarT;
 
  // maps the local (field,element,basis) triplet to a global ID
  // for scattering
  Teuchos::RCP<const panzer::GlobalIndexer> globalIndexer_;
  std::vector<int> fieldIds_; // field IDs needing mapping
 
  std::vector< PHX::MDField<ScalarT,Cell,NODE> > gatherFields_;
  PHX::ViewOfViews3<1,PHX::View<ScalarT**>> gatherFieldsVoV_;
 
  Teuchos::RCP<std::vector<std::string> > indexerNames_;
  bool useTimeDerivativeSolutionVector_;
  std::string globalDataKey_; // what global data does this fill?
 
  Teuchos::RCP<const TpetraLinearObjContainer<double,LO,GO,NodeT> > tpetraContainer_;
 
  GatherTangent_Tpetra();
};
 
}
 
// **************************************************************
#endif