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Classes | Typedefs | Functions | Variables
quad_polynomial_approximation.cpp File Reference
#include <MoFEM.hpp>

Go to the source code of this file.

Classes

struct  ApproxFunction
 
struct  QuadOpCheck
 
struct  QuadOpRhs
 
struct  QuadOpLhs
 

Typedefs

using Ele = FaceElementForcesAndSourcesCore
 
using OpEle = FaceElementForcesAndSourcesCore::UserDataOperator
 
using EntData = EntitiesFieldData::EntData
 

Functions

int main (int argc, char *argv[])
 

Variables

static char help [] = "...\n\n"
 
static constexpr int approx_order = 6
 

Typedef Documentation

◆ Ele

using Ele = FaceElementForcesAndSourcesCore
Examples
reaction_diffusion.cpp.

Definition at line 13 of file quad_polynomial_approximation.cpp.

◆ EntData

using EntData = EntitiesFieldData::EntData

Definition at line 15 of file quad_polynomial_approximation.cpp.

◆ OpEle

using OpEle = FaceElementForcesAndSourcesCore::UserDataOperator

Definition at line 14 of file quad_polynomial_approximation.cpp.

Function Documentation

◆ main()

int main ( int  argc,
char *  argv[] 
)

Definition at line 83 of file quad_polynomial_approximation.cpp.

83 {
84
85 MoFEM::Core::Initialize(&argc, &argv, (char *)0, help);
86
87 try {
88
89 // Declare elements
90 enum bases {
91 AINSWORTH,
92 AINSWORTH_LOBATTO,
93 DEMKOWICZ,
94 BERNSTEIN,
95 LASBASETOP
96 };
97 const char *list_bases[] = {"ainsworth", "ainsworth_labatto", "demkowicz",
98 "bernstein"};
99 PetscBool flg;
100 PetscInt choice_base_value = AINSWORTH;
101 CHKERR PetscOptionsGetEList(PETSC_NULL, NULL, "-base", list_bases,
102 LASBASETOP, &choice_base_value, &flg);
103
104 if (flg != PETSC_TRUE)
105 SETERRQ(PETSC_COMM_SELF, MOFEM_IMPOSSIBLE_CASE, "base not set");
106 FieldApproximationBase base = AINSWORTH_LEGENDRE_BASE;
107 if (choice_base_value == AINSWORTH)
108 base = AINSWORTH_LEGENDRE_BASE;
109 if (choice_base_value == AINSWORTH_LOBATTO)
110 base = AINSWORTH_LOBATTO_BASE;
111 else if (choice_base_value == DEMKOWICZ)
112 base = DEMKOWICZ_JACOBI_BASE;
113 else if (choice_base_value == BERNSTEIN)
114 base = AINSWORTH_BERNSTEIN_BEZIER_BASE;
115
116 enum spaces { H1SPACE, L2SPACE, LASBASETSPACE };
117 const char *list_spaces[] = {"h1", "l2"};
118 PetscInt choice_space_value = H1SPACE;
119 CHKERR PetscOptionsGetEList(PETSC_NULL, NULL, "-space", list_spaces,
120 LASBASETSPACE, &choice_space_value, &flg);
121 if (flg != PETSC_TRUE)
122 SETERRQ(PETSC_COMM_SELF, MOFEM_IMPOSSIBLE_CASE, "space not set");
123 FieldSpace space = H1;
124 if (choice_space_value == H1SPACE)
125 space = H1;
126 else if (choice_space_value == L2SPACE)
127 space = L2;
128
129 moab::Core mb_instance;
130 moab::Interface &moab = mb_instance;
131
132 std::array<double, 12> one_quad_coords = {0, 0, 0,
133
134 2, 0, 0,
135
136 1, 1, 0,
137
138 0, 1, 0};
139
140 std::array<EntityHandle, 4> one_quad_nodes;
141 for (int n = 0; n != 4; ++n)
142 CHKERR moab.create_vertex(&one_quad_coords[3 * n], one_quad_nodes[n]);
143 EntityHandle one_quad;
144 CHKERR moab.create_element(MBQUAD, one_quad_nodes.data(), 4, one_quad);
145 Range one_quad_range;
146 one_quad_range.insert(one_quad);
147 Range one_quad_adj_ents;
148 CHKERR moab.get_adjacencies(one_quad_range, 1, true, one_quad_adj_ents,
149 moab::Interface::UNION);
150
151 MoFEM::Core core(moab);
152 MoFEM::Interface &m_field = core;
153
154 BitRefLevel bit_level0 = BitRefLevel().set(0);
155 CHKERR m_field.getInterface<BitRefManager>()->setBitRefLevelByDim(
156 0, 2, bit_level0);
157
158 // Fields
159 CHKERR m_field.add_field("FIELD1", space, base, 1);
160 CHKERR m_field.add_ents_to_field_by_type(0, MBQUAD, "FIELD1");
161
162 CHKERR m_field.set_field_order(0, MBVERTEX, "FIELD1", 1);
163 CHKERR m_field.set_field_order(0, MBEDGE, "FIELD1", approx_order + 1);
164 CHKERR m_field.set_field_order(0, MBQUAD, "FIELD1", approx_order + 1);
165 CHKERR m_field.build_fields();
166
167 // FE
168 CHKERR m_field.add_finite_element("QUAD");
169
170 // Define rows/cols and element data
171 CHKERR m_field.modify_finite_element_add_field_row("QUAD", "FIELD1");
172 CHKERR m_field.modify_finite_element_add_field_col("QUAD", "FIELD1");
173 CHKERR m_field.modify_finite_element_add_field_data("QUAD", "FIELD1");
174 CHKERR m_field.add_ents_to_finite_element_by_type(0, MBQUAD, "QUAD");
175
176 // build finite elemnts
177 CHKERR m_field.build_finite_elements();
178 // //build adjacencies
179 CHKERR m_field.build_adjacencies(bit_level0);
180
181 // Problem
182 CHKERR m_field.add_problem("TEST_PROBLEM");
183
184 // set finite elements for problem
185 CHKERR m_field.modify_problem_add_finite_element("TEST_PROBLEM", "QUAD");
186 // set refinement level for problem
187 CHKERR m_field.modify_problem_ref_level_add_bit("TEST_PROBLEM", bit_level0);
188
189 // build problem
190 ProblemsManager *prb_mng_ptr;
191 CHKERR m_field.getInterface(prb_mng_ptr);
192 CHKERR prb_mng_ptr->buildProblem("TEST_PROBLEM", true);
193 // partition
194 CHKERR prb_mng_ptr->partitionSimpleProblem("TEST_PROBLEM");
195 CHKERR prb_mng_ptr->partitionFiniteElements("TEST_PROBLEM");
196 // what are ghost nodes, see Petsc Manual
197 CHKERR prb_mng_ptr->partitionGhostDofs("TEST_PROBLEM");
198
199 // Create matrices
200 SmartPetscObj<Mat> A;
201 CHKERR m_field.getInterface<MatrixManager>()
202 ->createMPIAIJWithArrays<PetscGlobalIdx_mi_tag>("TEST_PROBLEM", A);
203 SmartPetscObj<Vec> F;
204 CHKERR m_field.getInterface<VecManager>()->vecCreateGhost("TEST_PROBLEM",
205 ROW, F);
206 SmartPetscObj<Vec> D;
207 CHKERR m_field.getInterface<VecManager>()->vecCreateGhost("TEST_PROBLEM",
208 COL, D);
209
210 auto rule = [&](int, int, int p) { return 2 * (p + 1); };
211
212 auto assemble_matrices_and_vectors = [&]() {
213 MoFEMFunctionBegin;
214 Ele fe(m_field);
215 fe.getRuleHook = rule;
216 auto jac_ptr = boost::make_shared<MatrixDouble>();
217 auto inv_jac_ptr = boost::make_shared<MatrixDouble>();
218 auto det_ptr = boost::make_shared<VectorDouble>();
219 fe.getOpPtrVector().push_back(new OpCalculateHOJac<2>(jac_ptr));
220 fe.getOpPtrVector().push_back(
221 new OpInvertMatrix<2>(jac_ptr, det_ptr, inv_jac_ptr));
222 fe.getOpPtrVector().push_back(
223 new OpSetHOInvJacToScalarBases<2>(H1, inv_jac_ptr));
224 fe.getOpPtrVector().push_back(
225 new OpSetHOInvJacToScalarBases<2>(L2, inv_jac_ptr));
226 fe.getOpPtrVector().push_back(new OpSetHOWeightsOnFace());
227 fe.getOpPtrVector().push_back(new QuadOpRhs(F));
228 fe.getOpPtrVector().push_back(new QuadOpLhs(A));
229 CHKERR VecZeroEntries(F);
230 CHKERR MatZeroEntries(A);
231 CHKERR m_field.loop_finite_elements("TEST_PROBLEM", "QUAD", fe);
232 CHKERR VecAssemblyBegin(F);
233 CHKERR VecAssemblyEnd(F);
234 CHKERR MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY);
235 CHKERR MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY);
236 MoFEMFunctionReturn(0);
237 };
238
239 auto solve_problem = [&] {
240 MoFEMFunctionBegin;
241 auto solver = createKSP(PETSC_COMM_WORLD);
242 CHKERR KSPSetOperators(solver, A, A);
243 CHKERR KSPSetFromOptions(solver);
244 CHKERR KSPSetUp(solver);
245 CHKERR KSPSolve(solver, F, D);
246 CHKERR VecGhostUpdateBegin(D, INSERT_VALUES, SCATTER_FORWARD);
247 CHKERR VecGhostUpdateEnd(D, INSERT_VALUES, SCATTER_FORWARD);
248 CHKERR m_field.getInterface<VecManager>()->setLocalGhostVector(
249 "TEST_PROBLEM", COL, D, INSERT_VALUES, SCATTER_REVERSE);
250 MoFEMFunctionReturn(0);
251 };
252
253 auto check_solution = [&] {
254 MoFEMFunctionBegin;
255 Ele fe(m_field);
256 fe.getRuleHook = rule;
257 auto field_vals_ptr = boost::make_shared<VectorDouble>();
258 auto diff_field_vals_ptr = boost::make_shared<MatrixDouble>();
259 auto jac_ptr = boost::make_shared<MatrixDouble>();
260 auto inv_jac_ptr = boost::make_shared<MatrixDouble>();
261 auto det_ptr = boost::make_shared<VectorDouble>();
262
263 fe.getOpPtrVector().push_back(
264 new OpCalculateScalarFieldValues("FIELD1", field_vals_ptr));
265 fe.getOpPtrVector().push_back(new OpCalculateHOJac<2>(jac_ptr));
266 fe.getOpPtrVector().push_back(
267 new OpInvertMatrix<2>(jac_ptr, det_ptr, inv_jac_ptr));
268 fe.getOpPtrVector().push_back(
269 new OpSetHOInvJacToScalarBases<2>(H1, inv_jac_ptr));
270 fe.getOpPtrVector().push_back(
271 new OpSetHOInvJacToScalarBases<2>(L2, inv_jac_ptr));
272 fe.getOpPtrVector().push_back(new OpSetHOWeightsOnFace());
273 fe.getOpPtrVector().push_back(new OpCalculateScalarFieldGradient<2>(
274 "FIELD1", diff_field_vals_ptr, space == L2 ? MBQUAD : MBVERTEX));
275 fe.getOpPtrVector().push_back(
276 new QuadOpCheck(field_vals_ptr, diff_field_vals_ptr));
277 CHKERR m_field.loop_finite_elements("TEST_PROBLEM", "QUAD", fe);
278 MoFEMFunctionReturn(0);
279 };
280
281 CHKERR assemble_matrices_and_vectors();
282 CHKERR solve_problem();
283 CHKERR check_solution();
284 }
285 CATCH_ERRORS;
286
287 MoFEM::Core::Finalize();
288 return 0;
289}
p
static Index< 'p', 3 > p
Definition: BasicFeTools.hpp:90
COL
@ COL
Definition: definitions.h:123
ROW
@ ROW
Definition: definitions.h:123
CATCH_ERRORS
#define CATCH_ERRORS
Catch errors.
Definition: definitions.h:372
FieldApproximationBase
FieldApproximationBase
approximation base
Definition: definitions.h:58
AINSWORTH_LEGENDRE_BASE
@ AINSWORTH_LEGENDRE_BASE
Ainsworth Cole (Legendre) approx. base .
Definition: definitions.h:60
AINSWORTH_LOBATTO_BASE
@ AINSWORTH_LOBATTO_BASE
Definition: definitions.h:62
DEMKOWICZ_JACOBI_BASE
@ DEMKOWICZ_JACOBI_BASE
Definition: definitions.h:66
AINSWORTH_BERNSTEIN_BEZIER_BASE
@ AINSWORTH_BERNSTEIN_BEZIER_BASE
Definition: definitions.h:64
FieldSpace
FieldSpace
approximation spaces
Definition: definitions.h:82
L2
@ L2
field with C-1 continuity
Definition: definitions.h:88
H1
@ H1
continuous field
Definition: definitions.h:85
MoFEMFunctionBegin
#define MoFEMFunctionBegin
First executable line of each MoFEM function, used for error handling. Final line of MoFEM functions ...
Definition: definitions.h:346
MOFEM_IMPOSSIBLE_CASE
@ MOFEM_IMPOSSIBLE_CASE
Definition: definitions.h:35
MoFEMFunctionReturn
#define MoFEMFunctionReturn(a)
Last executable line of each PETSc function used for error handling. Replaces return()
Definition: definitions.h:416
CHKERR
#define CHKERR
Inline error check.
Definition: definitions.h:535
n
FTensor::Index< 'n', SPACE_DIM > n
Definition: fluid_structure_eigenproblem.cpp:66
MoFEM::CoreInterface::add_finite_element
virtual MoFEMErrorCode add_finite_element(const std::string &fe_name, enum MoFEMTypes bh=MF_EXCL, int verb=DEFAULT_VERBOSITY)=0
add finite element
MoFEM::CoreInterface::build_finite_elements
virtual MoFEMErrorCode build_finite_elements(int verb=DEFAULT_VERBOSITY)=0
Build finite elements.
MoFEM::CoreInterface::modify_finite_element_add_field_col
virtual MoFEMErrorCode modify_finite_element_add_field_col(const std::string &fe_name, const std::string name_row)=0
set field col which finite element use
MoFEM::CoreInterface::add_ents_to_finite_element_by_type
virtual MoFEMErrorCode add_ents_to_finite_element_by_type(const EntityHandle entities, const EntityType type, const std::string &name, const bool recursive=true)=0
add entities to finite element
MoFEM::CoreInterface::modify_finite_element_add_field_data
virtual MoFEMErrorCode modify_finite_element_add_field_data(const std::string &fe_name, const std::string name_filed)=0
set finite element field data
MoFEM::CoreInterface::modify_finite_element_add_field_row
virtual MoFEMErrorCode modify_finite_element_add_field_row(const std::string &fe_name, const std::string name_row)=0
set field row which finite element use
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::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:2329
MoFEM::ProblemsManager::partitionSimpleProblem
MoFEMErrorCode partitionSimpleProblem(const std::string name, int verb=VERBOSE)
partition problem dofs
Definition: ProblemsManager.cpp:1527
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:2157
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
D
double D
Definition: initial_diffusion.cpp:44
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::createKSP
auto createKSP(MPI_Comm comm)
Definition: PetscSmartObj.hpp:247
MoFEM::PetscOptionsGetEList
PetscErrorCode PetscOptionsGetEList(PetscOptions *, const char pre[], const char name[], const char *const *list, PetscInt next, PetscInt *value, PetscBool *set)
Definition: DeprecatedPetsc.hpp:203
A
constexpr AssemblyType A
Definition: operators_tests.cpp:30
help
static char help[]
Definition: quad_polynomial_approximation.cpp:17
approx_order
static constexpr int approx_order
Definition: quad_polynomial_approximation.cpp:19
MoFEM::BitRefManager
Managing BitRefLevels.
Definition: BitRefManager.hpp:21
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::OpCalculateScalarFieldGradient
Get field gradients at integration pts for scalar filed rank 0, i.e. vector field.
Definition: UserDataOperators.hpp:1291
MoFEM::OpCalculateScalarFieldValues
Get value at integration points for scalar field.
Definition: UserDataOperators.hpp:83
MoFEM::OpSetHOInvJacToScalarBases
Set inverse jacobian to base functions.
Definition: HODataOperators.hpp:73
MoFEM::OpSetHOWeightsOnFace
Modify integration weights on face to take in account higher-order geometry.
Definition: HODataOperators.hpp:122
MoFEM::ProblemsManager
Problem manager is used to build and partition problems.
Definition: ProblemsManager.hpp:21
MoFEM::SmartPetscObj
intrusive_ptr for managing petsc objects
Definition: PetscSmartObj.hpp:81
MoFEM::UnknownInterface::getInterface
MoFEMErrorCode getInterface(IFACE *&iface) const
Get interface refernce to pointer of interface.
Definition: UnknownInterface.hpp:93
MoFEM::VecManager
Vector manager is used to create vectors \mofem_vectors.
Definition: VecManager.hpp:23

Variable Documentation

◆ approx_order

constexpr int approx_order = 6
staticconstexpr
Examples
prism_polynomial_approximation.cpp, and quad_polynomial_approximation.cpp.

Definition at line 19 of file quad_polynomial_approximation.cpp.

◆ help

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

Definition at line 17 of file quad_polynomial_approximation.cpp.

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