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Functions | Variables
thermal_elem.cpp File Reference
#include <BasicFiniteElements.hpp>

Go to the source code of this file.

Functions

int main (int argc, char *argv[])
 

Variables

static char help [] = "...\n\n"
 

Function Documentation

◆ main()

int main ( int argc,
char * argv[] )

Definition at line 12 of file thermal_elem.cpp.

12 {
13
14 MoFEM::Core::Initialize(&argc, &argv, (char *)0, help);
15
16 try {
17
18 moab::Core mb_instance;
19 moab::Interface &moab = mb_instance;
20 int rank;
21 MPI_Comm_rank(PETSC_COMM_WORLD, &rank);
22
23 PetscBool flg = PETSC_TRUE;
24 char mesh_file_name[255];
25 CHKERR PetscOptionsGetString(PETSC_NULL, PETSC_NULL, "-my_file",
26 mesh_file_name, 255, &flg);
27 if (flg != PETSC_TRUE) {
28 SETERRQ(PETSC_COMM_SELF, 1, "*** ERROR -my_file (MESH FILE NEEDED)");
29 }
30
31 const char *option;
32 option = "";
33 CHKERR moab.load_file(mesh_file_name, 0, option);
34
35 // Create MoFEM (Joseph) database
36 MoFEM::Core core(moab);
37 MoFEM::Interface &m_field = core;
38
39 // set entitities bit level
40 BitRefLevel bit_level0;
41 bit_level0.set(0);
42 EntityHandle meshset_level0;
43 CHKERR moab.create_meshset(MESHSET_SET, meshset_level0);
44 CHKERR m_field.getInterface<BitRefManager>()->setBitRefLevelByDim(
45 0, 3, bit_level0);
46
47 // Fields
48 CHKERR m_field.add_field("TEMP", H1, AINSWORTH_LEGENDRE_BASE, 1);
49
50 // Problem
51 CHKERR m_field.add_problem("TEST_PROBLEM");
52
53 // set refinement level for problem
54 CHKERR m_field.modify_problem_ref_level_add_bit("TEST_PROBLEM", bit_level0);
55
56 // meshset consisting all entities in mesh
57 EntityHandle root_set = moab.get_root_set();
58 // add entities to field
59 CHKERR m_field.add_ents_to_field_by_type(root_set, MBTET, "TEMP");
60
61 // set app. order
62 // see Hierarchic Finite Element Bases on Unstructured Tetrahedral Meshes
63 // (Mark Ainsworth & Joe Coyle)
64 int order = 4;
65 CHKERR m_field.set_field_order(root_set, MBTET, "TEMP", order);
66 CHKERR m_field.set_field_order(root_set, MBTRI, "TEMP", order);
67 CHKERR m_field.set_field_order(root_set, MBEDGE, "TEMP", order);
68 CHKERR m_field.set_field_order(root_set, MBVERTEX, "TEMP", 1);
69
70 ThermalElement thermal_elements(m_field);
71 CHKERR thermal_elements.addThermalElements("TEMP");
72 CHKERR thermal_elements.addThermalFluxElement("TEMP");
73
74 CHKERR m_field.modify_problem_add_finite_element("TEST_PROBLEM",
75 "THERMAL_FE");
76 CHKERR m_field.modify_problem_add_finite_element("TEST_PROBLEM",
77 "THERMAL_FLUX_FE");
78
79 /****/
80 // build database
81 // build field
82 CHKERR m_field.build_fields();
83 // build finite elemnts
84 CHKERR m_field.build_finite_elements();
85 // build adjacencies
86 CHKERR m_field.build_adjacencies(bit_level0);
87
88 /****/
89 // mesh partitioning
90 // build problem
91 ProblemsManager *prb_mng_ptr;
92 CHKERR m_field.getInterface(prb_mng_ptr);
93 CHKERR prb_mng_ptr->buildProblem("TEST_PROBLEM", true);
94 // partition
95 CHKERR prb_mng_ptr->partitionSimpleProblem("TEST_PROBLEM");
96 CHKERR prb_mng_ptr->partitionFiniteElements("TEST_PROBLEM");
97 // what are ghost nodes, see Petsc Manual
98 CHKERR prb_mng_ptr->partitionGhostDofs("TEST_PROBLEM");
99
100 Vec F;
101 CHKERR m_field.getInterface<VecManager>()->vecCreateGhost("TEST_PROBLEM",
102 ROW, &F);
103 Vec T;
104 CHKERR VecDuplicate(F, &T);
105 Mat A;
106 CHKERR m_field.getInterface<MatrixManager>()
107 ->createMPIAIJWithArrays<PetscGlobalIdx_mi_tag>("TEST_PROBLEM", &A);
108
109 DirichletTemperatureBc my_dirichlet_bc(m_field, "TEMP", A, T, F);
110 CHKERR thermal_elements.setThermalFiniteElementRhsOperators("TEMP", F);
111 CHKERR thermal_elements.setThermalFiniteElementLhsOperators("TEMP", A);
112 CHKERR thermal_elements.setThermalFluxFiniteElementRhsOperators("TEMP", F);
113
114 CHKERR VecZeroEntries(T);
115 CHKERR VecZeroEntries(F);
116 CHKERR MatZeroEntries(A);
117
118 // preproc
119 CHKERR m_field.problem_basic_method_preProcess("TEST_PROBLEM",
120 my_dirichlet_bc);
121 CHKERR m_field.getInterface<VecManager>()->setGlobalGhostVector(
122 "TEST_PROBLEM", ROW, T, INSERT_VALUES, SCATTER_REVERSE);
123
124 CHKERR m_field.loop_finite_elements("TEST_PROBLEM", "THERMAL_FE",
125 thermal_elements.getLoopFeRhs());
126 CHKERR m_field.loop_finite_elements("TEST_PROBLEM", "THERMAL_FE",
127 thermal_elements.getLoopFeLhs());
128 CHKERR m_field.loop_finite_elements("TEST_PROBLEM", "THERMAL_FLUX_FE",
129 thermal_elements.getLoopFeFlux());
130
131 // postproc
132 CHKERR m_field.problem_basic_method_postProcess("TEST_PROBLEM",
133 my_dirichlet_bc);
134
135 CHKERR VecGhostUpdateBegin(F, ADD_VALUES, SCATTER_REVERSE);
136 CHKERR VecGhostUpdateEnd(F, ADD_VALUES, SCATTER_REVERSE);
137 CHKERR VecAssemblyBegin(F);
138 CHKERR VecAssemblyEnd(F);
139 CHKERR MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY);
140 CHKERR MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY);
141
142 CHKERR VecScale(F, -1);
143
144 // Solver
145 KSP solver;
146 CHKERR KSPCreate(PETSC_COMM_WORLD, &solver);
147 CHKERR KSPSetOperators(solver, A, A);
148 CHKERR KSPSetFromOptions(solver);
149 CHKERR KSPSetUp(solver);
150
151 CHKERR KSPSolve(solver, F, T);
152 CHKERR VecGhostUpdateBegin(T, INSERT_VALUES, SCATTER_FORWARD);
153 CHKERR VecGhostUpdateEnd(T, INSERT_VALUES, SCATTER_FORWARD);
154
155 CHKERR m_field.problem_basic_method_preProcess("TEST_PROBLEM",
156 my_dirichlet_bc);
157
158 // Save data on mesh
159 CHKERR m_field.getInterface<VecManager>()->setGlobalGhostVector(
160 "TEST_PROBLEM", ROW, T, INSERT_VALUES, SCATTER_REVERSE);
161
162 double sum = 0;
163 CHKERR VecSum(F, &sum);
164 CHKERR PetscPrintf(PETSC_COMM_WORLD, "sum = %9.8f\n", sum);
165 double fnorm;
166 CHKERR VecNorm(F, NORM_2, &fnorm);
167 CHKERR PetscPrintf(PETSC_COMM_WORLD, "fnorm = %9.8e\n", fnorm);
168 if (fabs(sum + 0.59583333) > 1e-7) {
169 SETERRQ(PETSC_COMM_WORLD, MOFEM_ATOM_TEST_INVALID, "Failed to pass test");
170 }
171 if (fabs(fnorm - 2.32872499e-01) > 1e-6) {
172 SETERRQ(PETSC_COMM_WORLD, MOFEM_ATOM_TEST_INVALID, "Failed to pass test");
173 }
174
175 CHKERR MatDestroy(&A);
176 CHKERR VecDestroy(&F);
177 CHKERR VecDestroy(&T);
178 CHKERR KSPDestroy(&solver);
179
180 }
181 CATCH_ERRORS;
182
183 MoFEM::Core::Finalize();
184
185 return 0;
186}
ROW
@ ROW
Definition definitions.h:136
CATCH_ERRORS
#define CATCH_ERRORS
Catch errors.
Definition definitions.h:385
AINSWORTH_LEGENDRE_BASE
@ AINSWORTH_LEGENDRE_BASE
Ainsworth Cole (Legendre) approx. base nme:nme847.
Definition definitions.h:60
H1
@ H1
continuous field
Definition definitions.h:85
MOFEM_ATOM_TEST_INVALID
@ MOFEM_ATOM_TEST_INVALID
Definition definitions.h:40
CHKERR
#define CHKERR
Inline error check.
Definition definitions.h:548
order
constexpr int order
Definition dg_projection.cpp:18
F
@ F
Definition free_surface.cpp:394
MoFEM::CoreInterface::build_finite_elements
virtual MoFEMErrorCode build_finite_elements(int verb=DEFAULT_VERBOSITY)=0
Build finite elements.
MoFEM::CoreInterface::build_fields
virtual MoFEMErrorCode build_fields(int verb=DEFAULT_VERBOSITY)=0
MoFEM::CoreInterface::set_field_order
virtual MoFEMErrorCode set_field_order(const EntityHandle meshset, const EntityType type, const std::string &name, const ApproximationOrder order, int verb=DEFAULT_VERBOSITY)=0
Set order approximation of the entities in the field.
MoFEM::CoreInterface::add_ents_to_field_by_type
virtual MoFEMErrorCode add_ents_to_field_by_type(const Range &ents, const EntityType type, const std::string &name, int verb=DEFAULT_VERBOSITY)=0
Add entities to field meshset.
MoFEM::CoreInterface::problem_basic_method_postProcess
virtual MoFEMErrorCode problem_basic_method_postProcess(const Problem *problem_ptr, BasicMethod &method, int verb=DEFAULT_VERBOSITY)=0
Set data for BasicMethod.
MoFEM::CoreInterface::loop_finite_elements
virtual MoFEMErrorCode loop_finite_elements(const std::string problem_name, const std::string &fe_name, FEMethod &method, boost::shared_ptr< NumeredEntFiniteElement_multiIndex > fe_ptr=nullptr, MoFEMTypes bh=MF_EXIST, CacheTupleWeakPtr cache_ptr=CacheTupleSharedPtr(), int verb=DEFAULT_VERBOSITY)=0
Make a loop over finite elements.
MoFEM::ProblemsManager::partitionGhostDofs
MoFEMErrorCode partitionGhostDofs(const std::string name, int verb=VERBOSE)
determine ghost nodes
Definition ProblemsManager.cpp:2339
MoFEM::ProblemsManager::partitionSimpleProblem
MoFEMErrorCode partitionSimpleProblem(const std::string name, int verb=VERBOSE)
partition problem dofs
Definition ProblemsManager.cpp:1537
MoFEM::ProblemsManager::buildProblem
MoFEMErrorCode buildProblem(const std::string name, const bool square_matrix, int verb=VERBOSE)
build problem data structures
Definition ProblemsManager.cpp:87
MoFEM::ProblemsManager::partitionFiniteElements
MoFEMErrorCode partitionFiniteElements(const std::string name, bool part_from_moab=false, int low_proc=-1, int hi_proc=-1, int verb=VERBOSE)
partition finite elements
Definition ProblemsManager.cpp:2167
MoFEM::CoreInterface::add_problem
virtual MoFEMErrorCode add_problem(const std::string &name, enum MoFEMTypes bh=MF_EXCL, int verb=DEFAULT_VERBOSITY)=0
Add problem.
MoFEM::CoreInterface::modify_problem_ref_level_add_bit
virtual MoFEMErrorCode modify_problem_ref_level_add_bit(const std::string &name_problem, const BitRefLevel &bit)=0
add ref level to problem
MoFEM::CoreInterface::modify_problem_add_finite_element
virtual MoFEMErrorCode modify_problem_add_finite_element(const std::string name_problem, const std::string &fe_name)=0
add finite element to problem, this add entities assigned to finite element to a particular problem
mesh_file_name
char mesh_file_name[255]
Definition mesh_smoothing.cpp:22
MoFEM::Types::BitRefLevel
std::bitset< BITREFLEVEL_SIZE > BitRefLevel
Bit structure attached to each entity identifying to what mesh entity is attached.
Definition Types.hpp:40
MoFEM::PetscOptionsGetString
PetscErrorCode PetscOptionsGetString(PetscOptions *, const char pre[], const char name[], char str[], size_t size, PetscBool *set)
Definition DeprecatedPetsc.hpp:172
A
constexpr AssemblyType A
Definition operators_tests.cpp:30
MoFEM::BitRefManager
Managing BitRefLevels.
Definition BitRefManager.hpp:21
MoFEM::CoreInterface::problem_basic_method_preProcess
virtual MoFEMErrorCode problem_basic_method_preProcess(const Problem *problem_ptr, BasicMethod &method, int verb=DEFAULT_VERBOSITY)=0
Set data for BasicMethod.
MoFEM::CoreInterface::build_adjacencies
virtual MoFEMErrorCode build_adjacencies(const Range &ents, int verb=DEFAULT_VERBOSITY)=0
build adjacencies
MoFEM::CoreInterface::add_field
virtual MoFEMErrorCode add_field(const std::string name, const FieldSpace space, const FieldApproximationBase base, const FieldCoefficientsNumber nb_of_coefficients, const TagType tag_type=MB_TAG_SPARSE, const enum MoFEMTypes bh=MF_EXCL, int verb=DEFAULT_VERBOSITY)=0
Add field.
MoFEM::CoreTmp< 0 >
Core (interface) class.
Definition Core.hpp:82
MoFEM::CoreTmp< 0 >::Initialize
static MoFEMErrorCode Initialize(int *argc, char ***args, const char file[], const char help[])
Initializes the MoFEM database PETSc, MOAB and MPI.
Definition Core.cpp:72
MoFEM::CoreTmp< 0 >::Finalize
static MoFEMErrorCode Finalize()
Checks for options to be called at the conclusion of the program.
Definition Core.cpp:112
MoFEM::DeprecatedCoreInterface
Deprecated interface functions.
Definition DeprecatedCoreInterface.hpp:16
MoFEM::MatrixManager
Matrix manager is used to build and partition problems.
Definition MatrixManager.hpp:21
MoFEM::ProblemsManager
Problem manager is used to build and partition problems.
Definition ProblemsManager.hpp:21
MoFEM::UnknownInterface::getInterface
MoFEMErrorCode getInterface(IFACE *&iface) const
Get interface reference to pointer of interface.
Definition UnknownInterface.hpp:93
MoFEM::VecManager
Vector manager is used to create vectors \mofem_vectors.
Definition VecManager.hpp:23
ThermalElement
structure grouping operators and data used for thermal problems
Definition ThermalElement.hpp:27
help
static char help[]
Definition thermal_elem.cpp:10

Variable Documentation

◆ help

char help[] = "...\n\n"
static

Definition at line 10 of file thermal_elem.cpp.

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