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Added Jacobi preconditioner, removal of old comments

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VCB Ferreira
2026-08-04 13:55:04 +02:00
parent cab3af2004
commit 9d1a656673
2 changed files with 7 additions and 25 deletions
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nufi/poisson_problem.h
+4 -22
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@@ -458,29 +458,11 @@ template <int dim> void PoissonProblem<dim>::solve(size_t it) {
system_rhs.l2_norm());
SolverCG<Vector<double>> solver(solver_control);
solver.solve(system_matrix, solution, system_rhs, PreconditionIdentity());
constraints.distribute(solution);
PreconditionJacobi<SparseMatrix<double>> preconditioner;
preconditioner.initialize(system_matrix);
// std::ofstream out("results/phi_after_solve_" + std::to_string(it) +
// ".dat"); std::vector<std::pair<double, double>> data;
//
// const auto support =
// DoFTools::map_dofs_to_support_points(mapping, dof_handler);
//
// for (const auto &[dof, p] : support) {
// data.emplace_back(p[0], solution[dof]);
// }
//
// std::sort(data.begin(), data.end());
//
// for (const auto &[x, value] : data) {
// out << x << " " << value << "\n";
// }
//
// std::vector<double> E_x =
// sample_electric_field(Parameters::X_DOMAIN_LEFT,
// Parameters::X_DOMAIN_RIGHT, Parameters::PLOT_NX);
// save_space_vector(E_x, "E_x_after_solve", it);
solver.solve(system_matrix, solution, system_rhs, preconditioner);
constraints.distribute(solution);
}
template <int dim> void PoissonProblem<dim>::initialize() {