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Panzer_STK_GatherFields_impl.hpp
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42 
43 #ifndef PANZER_STK_GATHER_FIELDS_IMPL_HPP
44 #define PANZER_STK_GATHER_FIELDS_IMPL_HPP
45 
46 #include "Teuchos_Assert.hpp"
47 #include "Phalanx_DataLayout.hpp"
48 
49 #include "Panzer_BasisIRLayout.hpp"
50 
51 #include "Teuchos_FancyOStream.hpp"
52 
53 // **********************************************************************
54 // Specialization: Residual
55 // **********************************************************************
56 
57 template<typename EvalT, typename Traits>
60 {
61  using panzer::Cell;
62  using panzer::NODE;
63 
64  mesh_ = mesh;
65 
66  const std::vector<std::string>& names =
67  *(p.get< Teuchos::RCP< std::vector<std::string> > >("Field Names"));
68 
71  isConstant_ = basis->getBasis()->getElementSpace()==panzer::PureBasis::CONST;
72 
73  gatherFields_.resize(names.size());
74  stkFields_.resize(names.size());
75  for (std::size_t fd = 0; fd < names.size(); ++fd) {
76  gatherFields_[fd] =
77  PHX::MDField<ScalarT,Cell,NODE>(names[fd],basis->functional);
78  this->addEvaluatedField(gatherFields_[fd]);
79  }
80 
81  this->setName("Gather STK Fields");
82 }
83 
84 // **********************************************************************
85 template<typename EvalT, typename Traits>
87 postRegistrationSetup(typename Traits::SetupData /* d */,
88  PHX::FieldManager<Traits>& /* fm */)
89 {
90  for (std::size_t fd = 0; fd < gatherFields_.size(); ++fd) {
91  std::string fieldName = gatherFields_[fd].fieldTag().name();
92 
93  stkFields_[fd] = mesh_->getMetaData()->get_field<VariableField>(stk::topology::NODE_RANK, fieldName);
94 
95  if(stkFields_[fd]==0) {
96  std::stringstream ss;
97  mesh_->printMetaData(ss);
98  TEUCHOS_TEST_FOR_EXCEPTION(true,std::invalid_argument,
99  "panzer_stk::GatherFields: STK field " << "\"" << fieldName << "\" "
100  "not found.\n STK meta data follows: \n\n" << ss.str());
101  }
102  }
103 }
104 
105 // **********************************************************************
106 template<typename EvalT, typename Traits>
108 evaluateFields(typename Traits::EvalData workset)
109 {
110  const std::vector<stk::mesh::Entity> & localElements = *mesh_->getElementsOrderedByLID();
111 
112  // for convenience pull out some objects from workset
113  const std::vector<std::size_t> & localCellIds = this->wda(workset).cell_local_ids;
114 
115  // gather operation for each cell in workset
116  for(std::size_t worksetCellIndex=0;worksetCellIndex<localCellIds.size();++worksetCellIndex) {
117  std::size_t cellLocalId = localCellIds[worksetCellIndex];
118  stk::mesh::Entity const* relations = mesh_->getBulkData()->begin_nodes(localElements[cellLocalId]);
119 
120  // loop over the fields to be gathered
121  for (std::size_t fieldIndex=0; fieldIndex<gatherFields_.size();fieldIndex++) {
122  VariableField * field = stkFields_[fieldIndex];
123 
124  std::size_t basisCnt = gatherFields_[fieldIndex].extent(1);
125 
126  if(isConstant_) {
127  // loop over basis functions and fill the fields
128  (gatherFields_[fieldIndex])(worksetCellIndex,0) = *stk::mesh::field_data(*field, localElements[cellLocalId]);
129  }
130  else {
131  // loop over basis functions and fill the fields
132  for(std::size_t basis=0;basis<basisCnt;basis++) {
133  stk::mesh::Entity node = relations[basis];
134  (gatherFields_[fieldIndex])(worksetCellIndex,basis) = *stk::mesh::field_data(*field, node);
135  }
136  }
137  }
138  }
139 }
140 
141 #endif
T & get(const std::string &name, T def_value)
#define TEUCHOS_TEST_FOR_EXCEPTION(throw_exception_test, Exception, msg)
Teuchos::RCP< const PureBasis > getBasis() const
void postRegistrationSetup(typename Traits::SetupData d, PHX::FieldManager< Traits > &vm)
PHX::MDField< ScalarT, panzer::Cell, panzer::BASIS > field
A field to which we&#39;ll contribute, or in which we&#39;ll store, the result of computing this integral...
Teuchos::RCP< PHX::DataLayout > functional
&lt;Cell,Basis&gt;
panzer_stk::STK_Interface::SolutionFieldType VariableField
void evaluateFields(typename Traits::EvalData d)