forces_and_sources_testing_vertex_element.cpp

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#include <MoFEM.hpp>
 
namespace bio = boost::iostreams;
using bio::stream;
using bio::tee_device;
 
using namespace MoFEM;
 
static char help[] = "...\n\n";
 
int main(int argc, char *argv[]) {
 
  MoFEM::Core::Initialize(&argc, &argv, (char *)0, help);
 
  try {
 
    moab::Core mb_instance;
    moab::Interface &moab = mb_instance;
    int rank;
    MPI_Comm_rank(PETSC_COMM_WORLD, &rank);
 
    PetscBool flg = PETSC_TRUE;
    char mesh_file_name[255];
#if PETSC_VERSION_GE(3, 6, 4)
    CHKERR PetscOptionsGetString(PETSC_NULL, "", "-my_file", mesh_file_name,
                                 255, &flg);
#else
    CHKERR PetscOptionsGetString(PETSC_NULL, PETSC_NULL, "-my_file",
                                 mesh_file_name, 255, &flg);
#endif
    if (flg != PETSC_TRUE) {
      SETERRQ(PETSC_COMM_SELF, 1, "*** ERROR -my_file (MESH FILE NEEDED)");
    }
 
    // Create MoFEM (Joseph) database
    MoFEM::Core core(moab);
    MoFEM::Interface &m_field = core;
 
    ParallelComm *pcomm = ParallelComm::get_pcomm(&moab, MYPCOMM_INDEX);
    auto moab_comm_wrap =
        boost::make_shared<WrapMPIComm>(PETSC_COMM_WORLD, false);
    if (pcomm == NULL)
      pcomm =
          new ParallelComm(&moab, moab_comm_wrap->get_comm());
 
    const char *option;
    option = ""; //"PARALLEL=BCAST;";//;DEBUG_IO";
    BARRIER_PCOMM_RANK_START(pcomm)
    CHKERR moab.load_file(mesh_file_name, 0, option);
    BARRIER_PCOMM_RANK_END(pcomm)
 
    // set entitities bit level
    BitRefLevel bit_level0;
    bit_level0.set(0);
    EntityHandle meshset_level0;
    CHKERR moab.create_meshset(MESHSET_SET, meshset_level0);
    CHKERR m_field.getInterface<BitRefManager>()->setBitRefLevelByDim(
        0, 3, bit_level0);
 
    // Fields
    CHKERR m_field.add_field("FIELD1", H1, AINSWORTH_LEGENDRE_BASE, 3);
 
    // FE
    CHKERR m_field.add_finite_element("TEST_FE");
 
    // Define rows/cols and element data
    CHKERR m_field.modify_finite_element_add_field_row("TEST_FE", "FIELD1");
    CHKERR m_field.modify_finite_element_add_field_col("TEST_FE", "FIELD1");
    CHKERR m_field.modify_finite_element_add_field_data("TEST_FE", "FIELD1");
 
    // Problem
    CHKERR m_field.add_problem("TEST_PROBLEM");
 
    // set finite elements for problem
    CHKERR m_field.modify_problem_add_finite_element("TEST_PROBLEM", "TEST_FE");
    // set refinement level for problem
    CHKERR m_field.modify_problem_ref_level_add_bit("TEST_PROBLEM", bit_level0);
 
    // meshset consisting all entities in mesh
    EntityHandle root_set = moab.get_root_set();
    // add entities to field
    CHKERR m_field.add_ents_to_field_by_type(root_set, MBTET, "FIELD1");
    // add entities to finite element
    Range tets;
    CHKERR moab.get_entities_by_type(0, MBTET, tets, false);
    Skinner skin(&m_field.get_moab());
    Range tets_skin;
    CHKERR skin.find_skin(0, tets, false, tets_skin);
    Range tets_skin_nodes;
    CHKERR moab.get_connectivity(tets_skin, tets_skin_nodes, true);
    CHKERR m_field.add_ents_to_finite_element_by_type(tets_skin_nodes, MBVERTEX,
                                                      "TEST_FE");
 
    // set app. order
    // see Hierarchic Finite Element Bases on Unstructured Tetrahedral Meshes
    // (Mark Ainsworth & Joe Coyle)
    int order = 3;
    CHKERR m_field.set_field_order(root_set, MBTET, "FIELD1", order);
    CHKERR m_field.set_field_order(root_set, MBTRI, "FIELD1", order);
    CHKERR m_field.set_field_order(root_set, MBEDGE, "FIELD1", order);
    CHKERR m_field.set_field_order(root_set, MBVERTEX, "FIELD1", 1);
 
    /****/
    // build database
    // build field
    CHKERR m_field.build_fields();
    // set FIELD1 from positions of 10 node tets
    Projection10NodeCoordsOnField ent_method(m_field, "FIELD1");
    CHKERR m_field.loop_dofs("FIELD1", ent_method);
    // build finite elemnts
    CHKERR m_field.build_finite_elements();
    // build adjacencies
    CHKERR m_field.build_adjacencies(bit_level0);
    // build problem
    ProblemsManager *prb_mng_ptr;
    CHKERR m_field.getInterface(prb_mng_ptr);
    CHKERR prb_mng_ptr->buildProblem("TEST_PROBLEM", true);
 
    /****/
    // mesh partitioning
    // partition
    CHKERR prb_mng_ptr->partitionSimpleProblem("TEST_PROBLEM");
    CHKERR prb_mng_ptr->partitionFiniteElements("TEST_PROBLEM");
    // what are ghost nodes, see Petsc Manual
    CHKERR prb_mng_ptr->partitionGhostDofs("TEST_PROBLEM");
 
    VertexElementForcesAndSourcesCore fe1(m_field);
 
    typedef tee_device<std::ostream, std::ofstream> TeeDevice;
    typedef stream<TeeDevice> TeeStream;
 
    std::ofstream ofs("forces_and_sources_testing_vertex_element.txt");
    TeeDevice my_tee(std::cout, ofs);
    TeeStream my_split(my_tee);
 
    struct MyOp : public VertexElementForcesAndSourcesCore::UserDataOperator {
 
      TeeStream &my_split;
      MyOp(TeeStream &_my_split, const char type)
          : VertexElementForcesAndSourcesCore::UserDataOperator("FIELD1",
                                                                "FIELD1", type),
            my_split(_my_split) {}
 
      MoFEMErrorCode doWork(int side, EntityType type,
                            EntitiesFieldData::EntData &data) {
        MoFEMFunctionBeginHot;
 
        my_split << "NH1" << std::endl;
        my_split << "side: " << side << " type: " << type << std::endl;
        my_split << "data: " << data << std::endl;
        my_split << "coords: " << std::setprecision(3) << getCoords()
                 << std::endl;
 
        MoFEMFunctionReturnHot(0);
      }
 
      MoFEMErrorCode doWork(int row_side, int col_side, EntityType row_type,
                            EntityType col_type,
                            EntitiesFieldData::EntData &row_data,
                            EntitiesFieldData::EntData &col_data) {
        MoFEMFunctionBeginHot;
        my_split << "ROW NH1NH1" << std::endl;
        my_split << "row side: " << row_side << " row_type: " << row_type
                 << std::endl;
        my_split << row_data << std::endl;
        my_split << "COL NH1NH1" << std::endl;
        my_split << "col side: " << col_side << " col_type: " << col_type
                 << std::endl;
        my_split << col_data << std::endl;
        MoFEMFunctionReturnHot(0);
      }
    };
 
    fe1.getOpPtrVector().push_back(
        new MyOp(my_split, ForcesAndSourcesCore::UserDataOperator::OPROW));
    fe1.getOpPtrVector().push_back(
        new MyOp(my_split, ForcesAndSourcesCore::UserDataOperator::OPROWCOL));
 
    CHKERR m_field.loop_finite_elements("TEST_PROBLEM", "TEST_FE", fe1);
  }
  CATCH_ERRORS;
 
  CHKERR MoFEM::Core::Finalize();
 
  return 0;
}