v0.8.23
build_problems.cpp

Atom test for building problems

Bug:
Not verifying what if partitioned mesh is loaded.
/** \file build_problems.cpp
\example build_problems.cpp
\brief Atom test for building problems
\bug Not verifying what if partitioned mesh is loaded.
*/
/* This file is part of MoFEM.
* MoFEM is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* MoFEM is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with MoFEM. If not, see <http://www.gnu.org/licenses/>. */
#include <MoFEM.hpp>
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)");
}
ParallelComm *pcomm = ParallelComm::get_pcomm(&moab, MYPCOMM_INDEX);
if (pcomm == NULL)
pcomm = new ParallelComm(&moab, PETSC_COMM_WORLD);
CHKERR moab.load_file(mesh_file_name, 0, "");
// Create MoFEM database
MoFEM::Core core(moab);
MoFEM::Interface &m_field = core;
// set entities 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
// 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, "F1");
CHKERR m_field.add_ents_to_field_by_type(root_set, MBTET, "F2");
// set app. order
// see Hierarchic Finite Element Bases on Unstructured Tetrahedral Meshes
// (Mark Ainsworth & Joe Coyle)
int order = 2;
CHKERR m_field.set_field_order(root_set, MBTET, "F1", order - 1);
CHKERR m_field.set_field_order(root_set, MBTET, "F2", order);
CHKERR m_field.set_field_order(root_set, MBTRI, "F2", order);
CHKERR m_field.build_fields();
// add elements
CHKERR m_field.add_finite_element("E1");
CHKERR m_field.add_finite_element("E2");
CHKERR m_field.add_finite_element("E3");
// To build composite problem
CHKERR m_field.add_ents_to_finite_element_by_type(root_set, MBTET, "E1");
CHKERR m_field.add_ents_to_finite_element_by_type(root_set, MBTET, "E2");
CHKERR m_field.add_ents_to_finite_element_by_type(root_set, MBTET, "E3");
CHKERR m_field.build_adjacencies(bit_level0);
// Problems
CHKERR m_field.add_problem("P1");
CHKERR m_field.add_problem("P2");
// set refinement level for problem
CHKERR m_field.modify_problem_ref_level_add_bit("P1", bit_level0);
CHKERR m_field.modify_problem_ref_level_add_bit("P2", bit_level0);
// build problems
ProblemsManager *prb_mng_ptr;
CHKERR m_field.getInterface(prb_mng_ptr);
CHKERR prb_mng_ptr->buildProblem("P1", true);
CHKERR prb_mng_ptr->buildProblem("P2", true);
CHKERR prb_mng_ptr->partitionProblem("P1");
CHKERR prb_mng_ptr->partitionProblem("P2");
CHKERR prb_mng_ptr->partitionFiniteElements("P1");
CHKERR prb_mng_ptr->partitionGhostDofs("P1");
->checkMPIAIJWithArraysMatrixFillIn<PetscGlobalIdx_mi_tag>("P1", -1, -1,
0);
CHKERR prb_mng_ptr->partitionFiniteElements("P2");
CHKERR prb_mng_ptr->partitionGhostDofs("P2");
->checkMPIAIJWithArraysMatrixFillIn<PetscGlobalIdx_mi_tag>("P2", -1, -1,
0);
// compose problem
CHKERR m_field.add_problem("P3");
CHKERR m_field.modify_problem_ref_level_add_bit("P3", bit_level0);
CHKERR prb_mng_ptr->buildProblem("P3", false);
CHKERR prb_mng_ptr->inheritPartition("P3", "P1", false, "P2", true);
CHKERR prb_mng_ptr->partitionFiniteElements("P3");
CHKERR prb_mng_ptr->partitionGhostDofs("P3");
->checkMPIAIJWithArraysMatrixFillIn<PetscGlobalIdx_mi_tag>("P3", -1, -1,
0);
}
// finish work cleaning memory, getting statistics, etc.
return 0;
}