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Panzer_DotProduct_impl.hpp
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42 
43 #ifndef PANZER_EVALUATOR_DotProduct_IMPL_HPP
44 #define PANZER_EVALUATOR_DotProduct_IMPL_HPP
45 
46 #include <string>
47 
48 #include "Panzer_PointRule.hpp"
50 
51 #include "Teuchos_RCP.hpp"
52 
53 namespace panzer {
54 
55 template <typename EvalT,typename TraitsT>
56 Teuchos::RCP<DotProduct<EvalT,TraitsT> >
57 buildEvaluator_DotProduct(const std::string & resultName,
58  const panzer::PointRule & pr,
59  const std::string & vecA,
60  const std::string & vecB,
61  double multiplier,
62  const std::string & fieldMultiplier)
63 {
64  Teuchos::ParameterList pl;
65  pl.set("Result Name",resultName);
66  pl.set("Point Rule",Teuchos::rcpFromRef(pr));
67  pl.set("Vector A Name",vecA);
68  pl.set("Vector B Name",vecB);
69  pl.set("Multiplier",multiplier);
70  pl.set("Field Multiplier",fieldMultiplier);
71 
72  return Teuchos::rcp(new DotProduct<EvalT,TraitsT>(pl));
73 }
74 
75 //**********************************************************************
76 PHX_EVALUATOR_CTOR(DotProduct,p)
77  : multiplier_field_on(false)
78 {
79  std::string result_name = p.get<std::string>("Result Name");
80  std::string vec_a_name = p.get<std::string>("Vector A Name");
81  std::string vec_b_name = p.get<std::string>("Vector B Name");
82 
83  std::string multiplier_name = "";
84  if(p.isType<std::string>("Field Multiplier"))
85  multiplier_name = p.get<std::string>("Field Multiplier");
86 
87  multiplier_value = 1.0;
88  if(p.isType<double>("Multiplier"))
89  multiplier_value = p.get<double>("Multiplier");
90 
91  const Teuchos::RCP<const panzer::PointRule> pr =
92  p.get< Teuchos::RCP<const panzer::PointRule> >("Point Rule");
93 
94  vec_a_dot_vec_b = PHX::MDField<ScalarT>(result_name, pr->dl_scalar);
95  vec_a = PHX::MDField<const ScalarT>(vec_a_name, pr->dl_vector);
96  vec_b = PHX::MDField<const ScalarT>(vec_b_name, pr->dl_vector);
97 
98  if(multiplier_name!="") {
99  multiplier_field = PHX::MDField<const ScalarT>(multiplier_name,pr->dl_scalar);
100  multiplier_field_on = true;
101  this->addDependentField(multiplier_field);
102  }
103 
104  this->addEvaluatedField(vec_a_dot_vec_b);
105  this->addDependentField(vec_a);
106  this->addDependentField(vec_b);
107 
108  std::string n = "DotProduct: " + result_name + " = " + vec_a_name + " . " + vec_b_name;
109  this->setName(n);
110 }
111 
112 //**********************************************************************
114 {
115  this->utils.setFieldData(vec_a_dot_vec_b,fm);
116  this->utils.setFieldData(vec_a,fm);
117  this->utils.setFieldData(vec_b,fm);
118 
120  this->utils.setFieldData(multiplier_field,fm);
121 
122  num_pts = vec_a.dimension(1);
123  num_dim = vec_a.dimension(2);
124 
125  TEUCHOS_ASSERT(vec_a.dimension(1) == vec_b.dimension(1));
126  TEUCHOS_ASSERT(vec_a.dimension(2) == vec_b.dimension(2));
127 }
128 
129 //**********************************************************************
130 PHX_EVALUATE_FIELDS(DotProduct,workset)
131 {
132  for (index_t cell = 0; cell < workset.num_cells; ++cell) {
133  for (int p = 0; p < num_pts; ++p) {
134  vec_a_dot_vec_b(cell,p) = ScalarT(0.0);
135  for (int dim = 0; dim < num_dim; ++dim)
136  vec_a_dot_vec_b(cell,p) += vec_a(cell,p,dim) * vec_b(cell,p,dim);
137 
140  else
142  }
143  }
144 }
145 
146 //**********************************************************************
147 
148 }
149 
150 #endif
PANZER_EVALUATOR_CLASS_END Teuchos::RCP< DotProduct< EvalT, TraitsT > > buildEvaluator_DotProduct(const std::string &resultName, const panzer::PointRule &pr, const std::string &vecA, const std::string &vecB, double multiplier=1, const std::string &fieldMultiplier="")
Build a dot product evaluator. Evaluates dot product at a set of points.
PHX::MDField< const ScalarT > multiplier_field
PHX::MDField< ScalarT > vec_b
PHX_EVALUATOR_CTOR(BasisValues_Evaluator, p)
double multiplier
PHX::MDField< ScalarT > vec_a
PHX_EVALUATE_FIELDS(BasisValues_Evaluator, workset)
PHX::MDField< ScalarT > vec_a_dot_vec_b
Evaluates dot product at a set of points.
PHX_POST_REGISTRATION_SETUP(BasisValues_Evaluator, sd, fm)