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Panzer_BasisDescriptor.cpp
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1// @HEADER
2// ***********************************************************************
3//
4// Panzer: A partial differential equation assembly
5// engine for strongly coupled complex multiphysics systems
6// Copyright (2011) Sandia Corporation
7//
8// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
9// the U.S. Government retains certain rights in this software.
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40// ***********************************************************************
41// @HEADER
42
44
45#include "Phalanx_KokkosDeviceTypes.hpp"
46
47#include "Panzer_HashUtils.hpp"
49#include "Panzer_PointGenerator.hpp" // includes Kokkos::DynRankView
50
51namespace panzer
52{
53
54// Anonymous namespace that holds the coordinate generator,
55// this hides any details about the generator from an external
56// user and hopefully hides Kokkos from any file that doesn't need it.
57namespace {
58
61class BasisCoordsGenerator :
62 public PointGenerator {
63public:
64 BasisCoordsGenerator(const int basis_order, const std::string & basis_type)
65 : _basis_type(basis_type), _basis_order(basis_order) {}
66
67 virtual ~BasisCoordsGenerator() = default;
68
69 virtual Kokkos::DynRankView<double> getPoints(const shards::CellTopology & topo) const override
70 {
71 Teuchos::RCP<Intrepid2::Basis<PHX::Device::execution_space,double,double> >
72 intrepid_basis = createIntrepid2Basis<PHX::Device::execution_space,double,double>(_basis_type,_basis_order,topo);
73
74 Kokkos::DynRankView<double> view(_basis_type+"_ref_coords",intrepid_basis->getCardinality(),topo.getDimension());
75
76 intrepid_basis->getDofCoords(view);
77
78 return view;
79 }
80
81 virtual int numPoints(const shards::CellTopology & topo) const override
82 {
83 Teuchos::RCP<Intrepid2::Basis<PHX::Device::execution_space,double,double> >
84 intrepid_basis = createIntrepid2Basis<PHX::Device::execution_space,double,double>(_basis_type,_basis_order,topo);
85 return intrepid_basis->getCardinality();
86 }
87
88 virtual bool hasPoints(const shards::CellTopology & topo) const override
89 {
90 return true;
91 }
92
93protected:
94 std::string _basis_type;
96
97private:
98 // hidden
99 BasisCoordsGenerator();
100 BasisCoordsGenerator(const BasisCoordsGenerator &);
101};
102
103} // end namespace <anonymous>
104
105
107 _basis_type("none"),
108 _basis_order(-1)
109{
110 _key = std::hash<BasisDescriptor>{}(*this);
111}
112
113BasisDescriptor::BasisDescriptor(const int basis_order, const std::string & basis_type):
114 _basis_type(basis_type),
115 _basis_order(basis_order)
116{
117 _key = std::hash<BasisDescriptor>{}(*this);
118}
119
122getPointDescriptor() const
123{
124 using Teuchos::RCP;
125 using Teuchos::rcp;
126
127 std::stringstream ss;
128 ss << "cell_ref:" << _basis_type << "-" << _basis_order;
129
130 RCP<PointGenerator> generator = rcp(new BasisCoordsGenerator(_basis_order,_basis_type));
131
132 PointDescriptor pd(ss.str(),generator);
133
134 return pd;
135}
136
137} // end namespace panzer
138
139std::size_t
140std::hash<panzer::BasisDescriptor>::operator()(const panzer::BasisDescriptor& desc) const
141{
142 std::size_t seed = 0;
143
144 panzer::hash_combine(seed,desc.getType());
145 panzer::hash_combine(seed,desc.getOrder());
146
147 return seed;
148}
149
std::string _basis_type
int numPoints
int getOrder() const
Get order of basis.
std::string _basis_type
Basis type (HGrad, HDiv, HCurl,...)
const std::string & getType() const
Get type of basis.
PointDescriptor getPointDescriptor() const
Build a point descriptor that builds reference points for the DOF locations. This method throws if no...
BasisDescriptor()
Constructor for empty basis.
void hash_combine(std::size_t &seed, const T &v)