v0.9.0
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 = DataForcesAndSourcesCore::EntData
 

Functions

int main (int argc, char *argv[])
 

Variables

static char help [] = "...\n\n"
 
static constexpr int approx_order = 5
 

Typedef Documentation

◆ Ele

using Ele = FaceElementForcesAndSourcesCore
Examples
reaction_diffusion_equation.cpp.

Definition at line 25 of file quad_polynomial_approximation.cpp.

◆ EntData

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

Definition at line 27 of file quad_polynomial_approximation.cpp.

◆ OpEle

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

Definition at line 26 of file quad_polynomial_approximation.cpp.

Function Documentation

◆ main()

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

Definition at line 95 of file quad_polynomial_approximation.cpp.

95  {
96 
97  MoFEM::Core::Initialize(&argc, &argv, (char *)0, help);
98 
99  try {
100 
101  moab::Core mb_instance;
102  moab::Interface &moab = mb_instance;
103 
104  std::array<double, 12> one_quad_coords = {0, 0, 0,
105 
106  1, 0, 0,
107 
108  1, 1, 0,
109 
110  0, 1, 0};
111  std::array<EntityHandle, 4> one_quad_nodes;
112  for (int n = 0; n != 4; ++n)
113  CHKERR moab.create_vertex(&one_quad_coords[3 * n], one_quad_nodes[n]);
114  EntityHandle one_quad;
115  CHKERR moab.create_element(MBQUAD, one_quad_nodes.data(), 4, one_quad);
116  Range one_quad_range;
117  one_quad_range.insert(one_quad);
118  Range one_quad_adj_ents;
119  CHKERR moab.get_adjacencies(one_quad_range, 1, true, one_quad_adj_ents,
120  moab::Interface::UNION);
121 
122  MoFEM::Core core(moab);
123  MoFEM::Interface &m_field = core;
124 
125  BitRefLevel bit_level0 = BitRefLevel().set(0);
126  CHKERR m_field.getInterface<BitRefManager>()->setBitRefLevelByDim(
127  0, 2, bit_level0);
128 
129  // Fields
130  CHKERR m_field.add_field("FIELD1", H1, AINSWORTH_LEGENDRE_BASE, 1);
131  CHKERR m_field.add_ents_to_field_by_type(0, MBQUAD, "FIELD1");
132 
133  CHKERR m_field.set_field_order(0, MBVERTEX, "FIELD1", 1);
134  CHKERR m_field.set_field_order(0, MBEDGE, "FIELD1", approx_order);
135  CHKERR m_field.set_field_order(0, MBQUAD, "FIELD1", approx_order);
136  CHKERR m_field.build_fields();
137 
138  // FE
139  CHKERR m_field.add_finite_element("QUAD");
140 
141  // Define rows/cols and element data
142  CHKERR m_field.modify_finite_element_add_field_row("QUAD", "FIELD1");
143  CHKERR m_field.modify_finite_element_add_field_col("QUAD", "FIELD1");
144  CHKERR m_field.modify_finite_element_add_field_data("QUAD", "FIELD1");
145  CHKERR m_field.add_ents_to_finite_element_by_type(0, MBQUAD, "QUAD");
146 
147  // build finite elemnts
148  CHKERR m_field.build_finite_elements();
149  // //build adjacencies
150  CHKERR m_field.build_adjacencies(bit_level0);
151 
152  // Problem
153  CHKERR m_field.add_problem("TEST_PROBLEM");
154 
155  // set finite elements for problem
156  CHKERR m_field.modify_problem_add_finite_element("TEST_PROBLEM", "QUAD");
157  // set refinement level for problem
158  CHKERR m_field.modify_problem_ref_level_add_bit("TEST_PROBLEM", bit_level0);
159 
160  // build problem
161  ProblemsManager *prb_mng_ptr;
162  CHKERR m_field.getInterface(prb_mng_ptr);
163  CHKERR prb_mng_ptr->buildProblem("TEST_PROBLEM", true);
164  // partition
165  CHKERR prb_mng_ptr->partitionSimpleProblem("TEST_PROBLEM");
166  CHKERR prb_mng_ptr->partitionFiniteElements("TEST_PROBLEM");
167  // what are ghost nodes, see Petsc Manual
168  CHKERR prb_mng_ptr->partitionGhostDofs("TEST_PROBLEM");
169 
170  // Create matrices
171  SmartPetscObj<Mat> A;
172  CHKERR m_field.getInterface<MatrixManager>()
173  ->createMPIAIJWithArrays<PetscGlobalIdx_mi_tag>("TEST_PROBLEM", A);
174  SmartPetscObj<Vec> F;
175  CHKERR m_field.getInterface<VecManager>()->vecCreateGhost("TEST_PROBLEM",
176  ROW, F);
177  SmartPetscObj<Vec> D;
178  CHKERR m_field.getInterface<VecManager>()->vecCreateGhost("TEST_PROBLEM",
179  COL, D);
180 
181  auto rule = [&](int, int, int p) { return 2 * (p + 1); };
182 
183  auto assemble_matrices_and_vectors = [&]() {
184  MoFEMFunctionBegin;
185  Ele fe(m_field);
186  fe.getRuleHook = rule;
187  MatrixDouble inv_jac;
188  fe.getOpPtrVector().push_back(new OpCalculateInvJacForFace(inv_jac));
189  fe.getOpPtrVector().push_back(new OpSetInvJacH1ForFace(inv_jac));
190  fe.getOpPtrVector().push_back(new QuadOpRhs(F));
191  fe.getOpPtrVector().push_back(new QuadOpLhs(A));
192  CHKERR VecZeroEntries(F);
193  CHKERR MatZeroEntries(A);
194  CHKERR m_field.loop_finite_elements("TEST_PROBLEM", "QUAD", fe);
195  CHKERR VecAssemblyBegin(F);
196  CHKERR VecAssemblyEnd(F);
197  CHKERR MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY);
198  CHKERR MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY);
199  MoFEMFunctionReturn(0);
200  };
201 
202  auto solve_problem = [&] {
203  MoFEMFunctionBegin;
204  auto solver = createKSP(PETSC_COMM_WORLD);
205  CHKERR KSPSetOperators(solver, A, A);
206  CHKERR KSPSetFromOptions(solver);
207  CHKERR KSPSetUp(solver);
208  CHKERR KSPSolve(solver, F, D);
209  CHKERR VecGhostUpdateBegin(D, INSERT_VALUES, SCATTER_FORWARD);
210  CHKERR VecGhostUpdateEnd(D, INSERT_VALUES, SCATTER_FORWARD);
211  CHKERR m_field.getInterface<VecManager>()->setLocalGhostVector(
212  "TEST_PROBLEM", COL, D, INSERT_VALUES, SCATTER_REVERSE);
213  MoFEMFunctionReturn(0);
214  };
215 
216  auto check_solution = [&] {
217  MoFEMFunctionBegin;
218  Ele fe(m_field);
219  fe.getRuleHook = rule;
220  boost::shared_ptr<VectorDouble> field_vals_ptr(new VectorDouble());
221  boost::shared_ptr<MatrixDouble> diff_field_vals_ptr(new MatrixDouble());
222  MatrixDouble inv_jac;
223  fe.getOpPtrVector().push_back(new OpCalculateInvJacForFace(inv_jac));
224  fe.getOpPtrVector().push_back(new OpSetInvJacH1ForFace(inv_jac));
225  fe.getOpPtrVector().push_back(
226  new OpCalculateScalarFieldValues("FIELD1", field_vals_ptr));
227  fe.getOpPtrVector().push_back(
228  new OpCalculateScalarFieldGradient<2>("FIELD1", diff_field_vals_ptr));
229  fe.getOpPtrVector().push_back(
230  new QuadOpCheck(field_vals_ptr, diff_field_vals_ptr));
231  CHKERR m_field.loop_finite_elements("TEST_PROBLEM", "QUAD", fe);
232  MoFEMFunctionReturn(0);
233  };
234 
235  CHKERR assemble_matrices_and_vectors();
236  CHKERR solve_problem();
237  CHKERR check_solution();
238  }
239  CATCH_ERRORS;
240 
241  MoFEM::Core::Finalize();
242  return 0;
243 }
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::ProblemsManager
Problem manager is used to build and partition problems.
Definition: ProblemsManager.hpp:34
MoFEM::CoreInterface::build_adjacencies
virtual MoFEMErrorCode build_adjacencies(const Range &ents, int verb=DEFAULT_VERBOSITY)=0
build adjacencies
help
static char help[]
Definition: quad_polynomial_approximation.cpp:29
MoFEM::Types::MatrixDouble
ublas::matrix< double, ublas::row_major, DoubleAllocator > MatrixDouble
Definition: Types.hpp:74
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::ProblemsManager::buildProblem
MoFEMErrorCode buildProblem(const std::string name, const bool square_matrix, int verb=VERBOSE)
build problem data structures
Definition: ProblemsManager.cpp:457
MoFEMFunctionReturn
#define MoFEMFunctionReturn(a)
Last executable line of each PETSc function used for error handling. Replaces return()
Definition: definitions.h:481
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::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::Core
Core (interface) class.
Definition: Core.hpp:50
approx_order
static constexpr int approx_order
Definition: quad_polynomial_approximation.cpp:31
MoFEM::Core::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:51
solve_problem
PetscErrorCode solve_problem(MoFEM::Interface &m_field, const string &problem_name, const string &fe_name, const string &re_field, const string &im_field, InsertMode mode, FUNEVAL &fun_evaluator, PetscBool is_partitioned)
Definition: AnalyticalSolutions.hpp:1390
MoFEM::UnknownInterface::getInterface
MoFEMErrorCode getInterface(const MOFEMuuid &uuid, IFACE *&iface) const
Get interface by uuid and return reference to pointer of interface.
Definition: UnknownInterface.hpp:122
MoFEM::OpCalculateInvJacForFace
Calculate inverse of jacobian for face element.
Definition: UserDataOperators.hpp:1546
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::BitRefManager
Managing BitRefLevels.
Definition: BitRefManager.hpp:34
AINSWORTH_LEGENDRE_BASE
Ainsworth Cole (Legendre) approx. base .
Definition: definitions.h:150
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:36
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
CHKERR
#define CHKERR
Inline error check.
Definition: definitions.h:600
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::OpSetInvJacH1ForFace
Transform local reference derivatives of shape functions to global derivatives.
Definition: UserDataOperators.hpp:1564
MoFEM::ProblemsManager::partitionGhostDofs
MoFEMErrorCode partitionGhostDofs(const std::string name, int verb=VERBOSE)
determine ghost nodes
Definition: ProblemsManager.cpp:2649
MoFEM::Types::BitRefLevel
std::bitset< BITREFLEVEL_SIZE > BitRefLevel
Bit structure attached to each entity identifying to what mesh entity is attached.
Definition: Types.hpp:51
MoFEM::CoreInterface::build_fields
virtual MoFEMErrorCode build_fields(int verb=DEFAULT_VERBOSITY)=0
MoFEM::createKSP
auto createKSP
Definition: AuxPETSc.hpp:270
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::OpCalculateScalarFieldGradient
Get field gradients at integration pts for scalar filed rank 0, i.e. vector field.
Definition: UserDataOperators.hpp:860
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 elementsFunction which partition finite elements based on dofs partitioning....
Definition: ProblemsManager.cpp:2416
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
MoFEMFunctionBegin
#define MoFEMFunctionBegin
First executable line of each MoFEM function, used for error handling. Final line of MoFEM functions ...
Definition: definitions.h:411
CATCH_ERRORS
#define CATCH_ERRORS
Catch errors.
Definition: definitions.h:437
H1
continuous field
Definition: definitions.h:175
MoFEM::Types::VectorDouble
ublas::vector< double, DoubleAllocator > VectorDouble
Definition: Types.hpp:72
MoFEM::OpCalculateScalarFieldValues
Get value at integration points for scalar field.
Definition: UserDataOperators.hpp:79
MoFEM::ProblemsManager::partitionSimpleProblem
MoFEMErrorCode partitionSimpleProblem(const std::string name, int verb=VERBOSE)
partition problem dofs
Definition: ProblemsManager.cpp:1804
MoFEM::CoreInterface::build_finite_elements
virtual MoFEMErrorCode build_finite_elements(int verb=DEFAULT_VERBOSITY)=0
Build finite elementsBuild finite element data structures. Have to be run before problem and adjacenc...
MoFEM::MatrixManager
Matrix manager is used to build and partition problems.
Definition: MatrixManager.hpp:34
MoFEM::Core::Finalize
static MoFEMErrorCode Finalize()
Checks for options to be called at the conclusion of the program.
Definition: Core.cpp:61
MoFEM::DeprecatedCoreInterface::loop_finite_elements
DEPRECATED MoFEMErrorCode loop_finite_elements(const Problem *problem_ptr, const std::string &fe_name, FEMethod &method, int lower_rank, int upper_rank, MoFEMTypes bh, int verb=DEFAULT_VERBOSITY)
Definition: DeprecatedCoreInterface.cpp:577

Variable Documentation

◆ approx_order

constexpr int approx_order = 5
static
Examples
quad_polynomial_approximation.cpp.

Definition at line 31 of file quad_polynomial_approximation.cpp.

◆ help

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

Definition at line 29 of file quad_polynomial_approximation.cpp.

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