v0.14.0
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

Definition at line 13 of file quad_polynomial_approximation.cpp.

◆ EntData

using EntData = EntitiesFieldData::EntData
Examples
quad_polynomial_approximation.cpp.

Definition at line 15 of file quad_polynomial_approximation.cpp.

◆ OpEle

using OpEle = FaceElementForcesAndSourcesCore::UserDataOperator
Examples
reaction_diffusion.cpp.

Definition at line 14 of file quad_polynomial_approximation.cpp.

Function Documentation

◆ main()

int main ( int  argc,
char *  argv[] 
)
Examples
quad_polynomial_approximation.cpp.

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_lobatto", "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 }

Variable Documentation

◆ approx_order

constexpr int approx_order = 6
staticconstexpr

Definition at line 19 of file quad_polynomial_approximation.cpp.

◆ help

char help[] = "...\n\n"
static
Examples
quad_polynomial_approximation.cpp.

Definition at line 17 of file quad_polynomial_approximation.cpp.

MoFEM::UnknownInterface::getInterface
MoFEMErrorCode getInterface(IFACE *&iface) const
Get interface reference to pointer of interface.
Definition: UnknownInterface.hpp:93
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::buildProblem
MoFEMErrorCode buildProblem(const std::string name, const bool square_matrix, int verb=VERBOSE)
build problem data structures
Definition: ProblemsManager.cpp:87
MoFEM::CoreTmp< 0 >
Core (interface) class.
Definition: Core.hpp:82
H1
@ H1
continuous field
Definition: definitions.h:85
QuadOpCheck
Definition: quad_polynomial_approximation.cpp:49
EntityHandle
MoFEM::ProblemsManager
Problem manager is used to build and partition problems.
Definition: ProblemsManager.hpp:21
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
L2
@ L2
field with C-1 continuity
Definition: definitions.h:88
MoFEM::OpSetHOInvJacToScalarBases< 2 >
Definition: HODataOperators.hpp:78
approx_order
static constexpr int approx_order
Definition: quad_polynomial_approximation.cpp:19
A
constexpr AssemblyType A
Definition: operators_tests.cpp:30
MoFEM::CoreTmp< 0 >::Finalize
static MoFEMErrorCode Finalize()
Checks for options to be called at the conclusion of the program.
Definition: Core.cpp:112
MoFEM::createKSP
auto createKSP(MPI_Comm comm)
Definition: PetscSmartObj.hpp:261
MOFEM_IMPOSSIBLE_CASE
@ MOFEM_IMPOSSIBLE_CASE
Definition: definitions.h:35
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::OpCalculateHOJac< 2 >
Definition: HODataOperators.hpp:273
MoFEM::DeprecatedCoreInterface
Deprecated interface functions.
Definition: DeprecatedCoreInterface.hpp:16
MoFEM::OpCalculateScalarFieldGradient
Get field gradients at integration pts for scalar filed rank 0, i.e. vector field.
Definition: UserDataOperators.hpp:1293
ROW
@ ROW
Definition: definitions.h:136
MoFEM::Interface
DeprecatedCoreInterface Interface
Definition: Interface.hpp:2010
FieldSpace
FieldSpace
approximation spaces
Definition: definitions.h:82
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
CHKERR
#define CHKERR
Inline error check.
Definition: definitions.h:548
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::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::build_finite_elements
virtual MoFEMErrorCode build_finite_elements(int verb=DEFAULT_VERBOSITY)=0
Build finite elements.
MoFEM::OpCalculateScalarFieldValues
Get value at integration points for scalar field.
Definition: UserDataOperators.hpp:82
COL
@ COL
Definition: definitions.h:136
MoFEM::OpSetHOWeightsOnFace
Modify integration weights on face to take in account higher-order geometry.
Definition: HODataOperators.hpp:122
AINSWORTH_LOBATTO_BASE
@ AINSWORTH_LOBATTO_BASE
Definition: definitions.h:62
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_field)=0
set finite element field data
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::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::VecManager
Vector manager is used to create vectors \mofem_vectors.
Definition: VecManager.hpp:23
QuadOpLhs
Definition: quad_polynomial_approximation.cpp:71
AINSWORTH_BERNSTEIN_BEZIER_BASE
@ AINSWORTH_BERNSTEIN_BEZIER_BASE
Definition: definitions.h:64
MoFEM::MatrixManager
Matrix manager is used to build and partition problems.
Definition: MatrixManager.hpp:21
convert.n
n
Definition: convert.py:82
Range
QuadOpRhs
Definition: quad_polynomial_approximation.cpp:61
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
CATCH_ERRORS
#define CATCH_ERRORS
Catch errors.
Definition: definitions.h:385
DEMKOWICZ_JACOBI_BASE
@ DEMKOWICZ_JACOBI_BASE
Definition: definitions.h:66
MoFEM::Core
CoreTmp< 0 > Core
Definition: Core.hpp:1148
MoFEM::ProblemsManager::partitionSimpleProblem
MoFEMErrorCode partitionSimpleProblem(const std::string name, int verb=VERBOSE)
partition problem dofs
Definition: ProblemsManager.cpp:1537
Ele
MoFEM::PipelineManager::ElementsAndOpsByDim< SPACE_DIM >::DomainEle Ele
Definition: hdiv_check_approx_in_3d.cpp:18
AINSWORTH_LEGENDRE_BASE
@ AINSWORTH_LEGENDRE_BASE
Ainsworth Cole (Legendre) approx. base .
Definition: definitions.h:60
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
MoFEM::OpInvertMatrix
Definition: UserDataOperators.hpp:3249
MoFEM::CoreInterface::build_fields
virtual MoFEMErrorCode build_fields(int verb=DEFAULT_VERBOSITY)=0
FieldApproximationBase
FieldApproximationBase
approximation base
Definition: definitions.h:58
ReactionDiffusionEquation::D
const double D
diffusivity
Definition: reaction_diffusion.cpp:20
MoFEM::BitRefManager
Managing BitRefLevels.
Definition: BitRefManager.hpp:21
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
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::CoreInterface::build_adjacencies
virtual MoFEMErrorCode build_adjacencies(const Range &ents, int verb=DEFAULT_VERBOSITY)=0
build adjacencies
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::SmartPetscObj< Mat >
MoFEM::ProblemsManager::partitionGhostDofs
MoFEMErrorCode partitionGhostDofs(const std::string name, int verb=VERBOSE)
determine ghost nodes
Definition: ProblemsManager.cpp:2339
MoFEM::CoreInterface::add_problem
virtual MoFEMErrorCode add_problem(const std::string &name, enum MoFEMTypes bh=MF_EXCL, int verb=DEFAULT_VERBOSITY)=0
Add problem.
help
static char help[]
Definition: quad_polynomial_approximation.cpp:17
convert.int
int
Definition: convert.py:64
MoFEMFunctionReturn
#define MoFEMFunctionReturn(a)
Last executable line of each PETSc function used for error handling. Replaces return()
Definition: definitions.h:429
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.
MoFEMFunctionBegin
#define MoFEMFunctionBegin
First executable line of each MoFEM function, used for error handling. Final line of MoFEM functions ...
Definition: definitions.h:359
F
@ F
Definition: free_surface.cpp:394
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