Panzer_GlobalIndexer_Utilities.hpp

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//           Panzer: A partial differential equation assembly
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#ifndef __Panzer_GlobalIndexer_Utilities_decl_hpp__
#define __Panzer_GlobalIndexer_Utilities_decl_hpp__

#include <map>
#include <string>

#include <unordered_map>

#include <Panzer_NodeType.hpp>
#include <Tpetra_Vector.hpp>
#include <Tpetra_MultiVector.hpp>

#include "Panzer_GlobalIndexer.hpp"
#include "Panzer_FieldPattern.hpp"

namespace panzer {

std::vector<Teuchos::RCP<const GlobalIndexer>> 
nc2c_vector(const std::vector<Teuchos::RCP<GlobalIndexer>> & ugis);

int getFieldBlock(const std::string & fieldName,
                  const std::vector<Teuchos::RCP<GlobalIndexer>> & ugis);

int getFieldBlock(const std::string & fieldName,
                  const std::vector<Teuchos::RCP<const GlobalIndexer>> & ugis);

void computeBlockOffsets(const std::string & blockId,
                         const std::vector<Teuchos::RCP<GlobalIndexer>> & ugis,
                         std::vector<int> & blockOffsets);

void computeBlockOffsets(const std::string & blockId,
                         const std::vector<Teuchos::RCP<const GlobalIndexer>> & ugis,
                         std::vector<int> & blockOffsets);

std::string printUGILoadBalancingInformation(const GlobalIndexer & ugi);

void printMeshTopology(std::ostream & os,const panzer::GlobalIndexer & ugi);

Teuchos::RCP<Tpetra::Vector<int,int,panzer::GlobalOrdinal,panzer::TpetraNodeType> >
buildGhostedFieldReducedVector(const GlobalIndexer & ugi);

Teuchos::RCP<const Tpetra::Vector<int,int,panzer::GlobalOrdinal,panzer::TpetraNodeType> >
buildGhostedFieldVector(const GlobalIndexer & ugi,
                        const Teuchos::RCP<const Tpetra::Vector<int,int,panzer::GlobalOrdinal,panzer::TpetraNodeType> > & reducedVec=Teuchos::null);

void buildGhostedFieldVector(const GlobalIndexer & ugi,
                             std::vector<int> & fieldNumbers,
                             const Teuchos::RCP<const Tpetra::Vector<int,int,panzer::GlobalOrdinal,panzer::TpetraNodeType> > & reducedVec=Teuchos::null);

template <typename ScalarT,typename ArrayT>
void updateGhostedDataReducedVector(const std::string & fieldName,const std::string blockId,
                                    const GlobalIndexer & ugi,
                                    const ArrayT & data,
                                    Tpetra::MultiVector<ScalarT,int,panzer::GlobalOrdinal,panzer::TpetraNodeType> & dataVector);

Teuchos::RCP<const Tpetra::Map<int,panzer::GlobalOrdinal,panzer::TpetraNodeType> >
getFieldMap(int fieldNum,const Tpetra::Vector<int,int,panzer::GlobalOrdinal,panzer::TpetraNodeType> & fieldVector);


namespace orientation_helpers {

void computePatternEdgeIndices(const FieldPattern & pattern,std::vector<std::pair<int,int> > & edgeIndices);

void computeCellEdgeOrientations(const std::vector<std::pair<int,int> > & topEdgeIndices,
                                 const std::vector<panzer::GlobalOrdinal> & topology,
                                 const FieldPattern & fieldPattern, 
                                 std::vector<signed char> & orientation);

void computePatternFaceIndices(const FieldPattern & pattern,std::vector<std::vector<int> > & faceIndices);

void computeCellFaceOrientations(const std::vector<std::vector<int>> & topEdgeIndices,
                                 const std::vector<panzer::GlobalOrdinal> & topology,
                                 const FieldPattern & fieldPattern, 
                                 std::vector<signed char> & orientation);

} // end orientations_helpers


class ArrayToFieldVector {
public:
   ArrayToFieldVector(const Teuchos::RCP<const GlobalIndexer> & ugi);

   template <typename ScalarT,typename ArrayT>
   Teuchos::RCP<Tpetra::MultiVector<ScalarT,int,panzer::GlobalOrdinal,panzer::TpetraNodeType> >
   getGhostedDataVector(const std::string & fieldName,const std::map<std::string,ArrayT> & data) const;

   template <typename ScalarT,typename ArrayT>
   Teuchos::RCP<Tpetra::MultiVector<ScalarT,int,panzer::GlobalOrdinal,panzer::TpetraNodeType> >
   getDataVector(const std::string & fieldName,const std::map<std::string,ArrayT> & data) const;

   Teuchos::RCP<const Tpetra::Map<int,panzer::GlobalOrdinal,panzer::TpetraNodeType> >
   getFieldMap(const std::string & fieldName) const;

   Teuchos::RCP<const Tpetra::Map<int,panzer::GlobalOrdinal,panzer::TpetraNodeType> >
   getFieldMap(int fieldNum) const;

protected:
   using IntVector = Tpetra::Vector<int,int,panzer::GlobalOrdinal,panzer::TpetraNodeType>;
   using Map = Tpetra::Map<int,panzer::GlobalOrdinal,panzer::TpetraNodeType>;

   void buildFieldVector(const Tpetra::Vector<int,int,panzer::GlobalOrdinal,panzer::TpetraNodeType> & source) const;

   Teuchos::RCP<const GlobalIndexer> ugi_;

   Teuchos::RCP<const IntVector> gh_reducedFieldVector_; 
   Teuchos::RCP<const IntVector> gh_fieldVector_;        

   mutable std::map<int,Teuchos::RCP<const Map> > gh_reducedFieldMaps_; 
   mutable std::map<int,Teuchos::RCP<const Map> > gh_fieldMaps_;        

   mutable Teuchos::RCP<const IntVector> fieldVector_;               
   mutable std::map<int,Teuchos::RCP<const Map> > fieldMaps_;        

private:
   // hide some constructors
   ArrayToFieldVector();
   ArrayToFieldVector(const ArrayToFieldVector &);
};


} // end namspace panzer

#include "Panzer_GlobalIndexer_Utilities_impl.hpp"

#endif