libMesh
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DofMapTest Class Reference
Inheritance diagram for DofMapTest:
[legend]

Public Member Functions

 LIBMESH_CPPUNIT_TEST_SUITE (DofMapTest)
 
 CPPUNIT_TEST (testDofOwnerOnEdge3)
 
 CPPUNIT_TEST (testDofOwnerOnQuad9)
 
 CPPUNIT_TEST (testDofOwnerOnTri6)
 
 CPPUNIT_TEST (testDofOwnerOnHex27)
 
 CPPUNIT_TEST (testBadElemFECombo)
 
 CPPUNIT_TEST (testConstraintLoopDetection)
 
 CPPUNIT_TEST (testArrayDofIndices)
 
 CPPUNIT_TEST_SUITE_END ()
 
void setUp ()
 
void tearDown ()
 
void testDofOwner (const ElemType elem_type)
 
void testDofOwnerOnEdge3 ()
 
void testDofOwnerOnQuad9 ()
 
void testDofOwnerOnTri6 ()
 
void testDofOwnerOnHex27 ()
 
void testBadElemFECombo ()
 
void testConstraintLoopDetection ()
 
void testArrayDofIndicesWithType (const FEType &fe_type)
 
void testArrayDofIndices ()
 

Detailed Description

Definition at line 50 of file dof_map_test.C.

Member Function Documentation

◆ CPPUNIT_TEST() [1/7]

DofMapTest::CPPUNIT_TEST ( testArrayDofIndices  )

◆ CPPUNIT_TEST() [2/7]

DofMapTest::CPPUNIT_TEST ( testBadElemFECombo  )

◆ CPPUNIT_TEST() [3/7]

DofMapTest::CPPUNIT_TEST ( testConstraintLoopDetection  )

◆ CPPUNIT_TEST() [4/7]

DofMapTest::CPPUNIT_TEST ( testDofOwnerOnEdge3  )

◆ CPPUNIT_TEST() [5/7]

DofMapTest::CPPUNIT_TEST ( testDofOwnerOnHex27  )

◆ CPPUNIT_TEST() [6/7]

DofMapTest::CPPUNIT_TEST ( testDofOwnerOnQuad9  )

◆ CPPUNIT_TEST() [7/7]

DofMapTest::CPPUNIT_TEST ( testDofOwnerOnTri6  )

◆ CPPUNIT_TEST_SUITE_END()

DofMapTest::CPPUNIT_TEST_SUITE_END ( )

◆ LIBMESH_CPPUNIT_TEST_SUITE()

DofMapTest::LIBMESH_CPPUNIT_TEST_SUITE ( DofMapTest  )

◆ setUp()

void DofMapTest::setUp ( )
inline

Definition at line 78 of file dof_map_test.C.

79 {}

◆ tearDown()

void DofMapTest::tearDown ( )
inline

Definition at line 81 of file dof_map_test.C.

82 {}

◆ testArrayDofIndices()

void DofMapTest::testArrayDofIndices ( )
inline

Definition at line 223 of file dof_map_test.C.

224 {
225 LOG_UNIT_TEST;
226 for (int i = 1; i < 3; ++i)
227 {
232 }
233 }
void testArrayDofIndicesWithType(const FEType &fe_type)

References libMesh::HIERARCHIC, libMesh::L2_LAGRANGE, libMesh::LAGRANGE, libMesh::MONOMIAL, and testArrayDofIndicesWithType().

◆ testArrayDofIndicesWithType()

void DofMapTest::testArrayDofIndicesWithType ( const FEType fe_type)
inline

Definition at line 195 of file dof_map_test.C.

196 {
197 Mesh mesh(*TestCommWorld);
199 auto & sys = es.add_system<System>("SimpleSystem");
200 const auto last_var = sys.add_variable_array({"u0", "u1"}, fe_type);
201 MeshTools::Generation::build_square (mesh,1,1,-1., 1.,-1., 1., QUAD9);
202 es.init();
203 auto & dof_map = sys.get_dof_map();
204 const auto * const elem = mesh.query_elem_ptr(0);
205 if (elem)
206 {
207 std::vector<dof_id_type> array_dofs, work_dofs, dofs;
208 dof_map.array_dof_indices(elem, array_dofs, last_var);
209 // Make sure there are no duplicates
210 std::sort(array_dofs.begin(), array_dofs.end());
211 auto it = std::unique(array_dofs.begin(), array_dofs.end());
212 array_dofs.erase(it, array_dofs.end());
213 CPPUNIT_ASSERT_EQUAL(static_cast<std::size_t>(dof_map.n_dofs()), array_dofs.size());
214 dof_map.dof_indices(elem, work_dofs, last_var);
215 dofs = work_dofs;
216 dof_map.dof_indices(elem, work_dofs, last_var - 1);
217 dofs.insert(dofs.end(), work_dofs.begin(), work_dofs.end());
218 std::sort(dofs.begin(), dofs.end());
219 CPPUNIT_ASSERT(array_dofs == dofs);
220 }
221 }
This is the EquationSystems class.
virtual const Elem * query_elem_ptr(const dof_id_type i) const =0
The Mesh class is a thin wrapper, around the ReplicatedMesh class by default.
Definition mesh.h:51
Manages consistently variables, degrees of freedom, and coefficient vectors.
Definition system.h:100
unsigned int add_variable_array(const std::vector< std::string > &vars, const FEType &type, const std::set< subdomain_id_type > *const active_subdomains=nullptr)
Adds variables vars to the list of variables for this system.
Definition system.C:1386
MeshBase & mesh
void build_square(UnstructuredMesh &mesh, const unsigned int nx, const unsigned int ny, const Real xmin=0., const Real xmax=1., const Real ymin=0., const Real ymax=1., const ElemType type=INVALID_ELEM, const bool gauss_lobatto_grid=false)
A specialized build_cube() for 2D meshes.

References libMesh::EquationSystems::add_system(), libMesh::System::add_variable_array(), libMesh::MeshTools::Generation::build_square(), libMesh::EquationSystems::init(), mesh, libMesh::QUAD9, libMesh::MeshBase::query_elem_ptr(), and TestCommWorld.

Referenced by testArrayDofIndices().

◆ testBadElemFECombo()

void DofMapTest::testBadElemFECombo ( )
inline

Definition at line 127 of file dof_map_test.C.

128 {
129 LOG_UNIT_TEST;
130
131 Mesh mesh(*TestCommWorld);
132
134 System & sys = es.add_system<System> ("SimpleSystem");
135 sys.add_variable("u", SECOND);
136
137 MeshTools::Generation::build_square (mesh,4,4,-1., 1.,-1., 1., QUAD4);
138
139 // We need at least one element per processor to make sure
140 // everyone throws and we don't get out of sync before going on to
141 // future tests.
142 dof_id_type min_local_elem = mesh.n_local_elem();
143 mesh.comm().min(min_local_elem);
144
145 if (!min_local_elem)
146 return;
147
148 // We can't just CPPUNIT_ASSERT_THROW, because we want to make
149 // sure we were thrown from the right place with the right error
150 // message!
151 bool threw_desired_exception = false;
152 try {
153 es.init();
154 }
155 catch (libMesh::LogicError & e) {
156 std::regex msg_regex("only supports FEInterface::max_order");
157 CPPUNIT_ASSERT(std::regex_search(e.what(), msg_regex));
158 threw_desired_exception = true;
159 }
160 catch (...) {
161 CPPUNIT_ASSERT_MESSAGE("Unexpected exception type thrown", false);
162 }
163
164 // If we have more than 4*4 processors, or a poor partitioner, we
165 // might not get an exception on every processor
166 mesh.comm().max(threw_desired_exception);
167
168 CPPUNIT_ASSERT(threw_desired_exception);
169 }
void max(const T &r, T &o, Request &req) const
void min(const T &r, T &o, Request &req) const
A class to represent the internal "this should never happen" errors, to be thrown by "libmesh_error()...
dof_id_type n_local_elem() const
Definition mesh_base.h:697
const Parallel::Communicator & comm() const
unsigned int add_variable(std::string_view var, const FEType &type, const std::set< subdomain_id_type > *const active_subdomains=nullptr)
Adds the variable var to the list of variables for this system.
Definition system.C:1344
uint8_t dof_id_type
Definition id_types.h:67

References libMesh::EquationSystems::add_system(), libMesh::System::add_variable(), libMesh::MeshTools::Generation::build_square(), libMesh::ParallelObject::comm(), libMesh::EquationSystems::init(), libMesh::Parallel::Communicator::max(), mesh, libMesh::Parallel::Communicator::min(), libMesh::MeshBase::n_local_elem(), libMesh::QUAD4, libMesh::SECOND, and TestCommWorld.

◆ testConstraintLoopDetection()

void DofMapTest::testConstraintLoopDetection ( )
inline

Definition at line 173 of file dof_map_test.C.

174 {
175 LOG_UNIT_TEST;
176 Mesh mesh(*TestCommWorld);
177
179 System & sys = es.add_system<System> ("SimpleSystem");
180 sys.add_variable("u", FIRST);
181
182 MyConstraint my_constraint(sys);
183 sys.attach_constraint_object(my_constraint);
184
185 MeshTools::Generation::build_square (mesh,4,4,-1., 1.,-1., 1., QUAD4);
186
187 // Tell the dof_map to check for constraint loops
188 DofMap & dof_map = sys.get_dof_map();
189 dof_map.set_error_on_constraint_loop(true);
190
191 CPPUNIT_ASSERT_THROW_MESSAGE("Constraint loop not detected", es.init(), libMesh::LogicError);
192 }
This class handles the numbering of degrees of freedom on a mesh.
Definition dof_map.h:181
void set_error_on_constraint_loop(bool error_on_constraint_loop)
Definition dof_map.C:234
void attach_constraint_object(Constraint &constrain)
Register a user object for imposing constraints.
Definition system.C:2007
const DofMap & get_dof_map() const
Definition system.h:2417

References libMesh::EquationSystems::add_system(), libMesh::System::add_variable(), libMesh::System::attach_constraint_object(), libMesh::MeshTools::Generation::build_square(), libMesh::FIRST, libMesh::System::get_dof_map(), libMesh::EquationSystems::init(), mesh, libMesh::QUAD4, libMesh::DofMap::set_error_on_constraint_loop(), and TestCommWorld.

◆ testDofOwner()

void DofMapTest::testDofOwner ( const ElemType  elem_type)
inline

Definition at line 84 of file dof_map_test.C.

85 {
86 Mesh mesh(*TestCommWorld);
87
89 System &sys = es.add_system<System> ("SimpleSystem");
90 sys.add_variable("u", THIRD, HIERARCHIC);
91
92 const unsigned int n_elem_per_side = 3;
93 const std::unique_ptr<Elem> test_elem = Elem::build(elem_type);
94 const unsigned int ymax = test_elem->dim() > 1;
95 const unsigned int zmax = test_elem->dim() > 2;
96 const unsigned int ny = ymax * n_elem_per_side;
97 const unsigned int nz = zmax * n_elem_per_side;
98
100 n_elem_per_side,
101 ny,
102 nz,
103 0., 1.,
104 0., ymax,
105 0., zmax,
106 elem_type);
107
108 es.init();
109
110 DofMap & dof_map = sys.get_dof_map();
111 for (dof_id_type id = 0; id != dof_map.n_dofs(); ++id)
112 {
113 const processor_id_type pid = dof_map.dof_owner(id);
114 CPPUNIT_ASSERT(dof_map.first_dof(pid) <= id);
115 CPPUNIT_ASSERT(id < dof_map.end_dof(pid));
116 }
117 }
dof_id_type first_dof(const processor_id_type proc) const
dof_id_type end_dof(const processor_id_type proc) const
processor_id_type dof_owner(const dof_id_type dof) const
Definition dof_map.h:815
dof_id_type n_dofs(const unsigned int vn) const
Definition dof_map.h:776
static std::unique_ptr< Elem > build(const ElemType type, Elem *p=nullptr)
Definition elem.C:442
void build_cube(UnstructuredMesh &mesh, const unsigned int nx=0, const unsigned int ny=0, const unsigned int nz=0, const Real xmin=0., const Real xmax=1., const Real ymin=0., const Real ymax=1., const Real zmin=0., const Real zmax=1., const ElemType type=INVALID_ELEM, const bool gauss_lobatto_grid=false)
Builds a (elements) cube.
uint8_t processor_id_type
Definition id_types.h:104

References libMesh::EquationSystems::add_system(), libMesh::System::add_variable(), libMesh::Elem::build(), libMesh::MeshTools::Generation::build_cube(), libMesh::DofMap::dof_owner(), libMesh::DofMapBase::end_dof(), libMesh::DofMapBase::first_dof(), libMesh::System::get_dof_map(), libMesh::HIERARCHIC, libMesh::EquationSystems::init(), mesh, libMesh::DofMap::n_dofs(), TestCommWorld, and libMesh::THIRD.

Referenced by testDofOwnerOnEdge3(), testDofOwnerOnHex27(), testDofOwnerOnQuad9(), and testDofOwnerOnTri6().

◆ testDofOwnerOnEdge3()

void DofMapTest::testDofOwnerOnEdge3 ( )
inline

Definition at line 121 of file dof_map_test.C.

121{ LOG_UNIT_TEST; testDofOwner(EDGE3); }
void testDofOwner(const ElemType elem_type)

References libMesh::EDGE3, and testDofOwner().

◆ testDofOwnerOnHex27()

void DofMapTest::testDofOwnerOnHex27 ( )
inline

Definition at line 124 of file dof_map_test.C.

124{ LOG_UNIT_TEST; testDofOwner(HEX27); }

References libMesh::HEX27, and testDofOwner().

◆ testDofOwnerOnQuad9()

void DofMapTest::testDofOwnerOnQuad9 ( )
inline

Definition at line 122 of file dof_map_test.C.

122{ LOG_UNIT_TEST; testDofOwner(QUAD9); }

References libMesh::QUAD9, and testDofOwner().

◆ testDofOwnerOnTri6()

void DofMapTest::testDofOwnerOnTri6 ( )
inline

Definition at line 123 of file dof_map_test.C.

123{ LOG_UNIT_TEST; testDofOwner(TRI6); }

References testDofOwner(), and libMesh::TRI6.


The documentation for this class was generated from the following file: