Hello,
problem was,
- that I have some meaningless calls for
/* current_solution_phase.reinit(locally_owned_dofs_phase,
locally_relevant_dofs_phase, mpi_communicator);
current_solution_phase = 0;
*/
/*solution_update.reinit(locally_owned_dofs_phase,
locally_relevant_dofs_phase, mpi_communicator);
solution_update = 0;
These vectors remained in my solver from the previous development.
- I ran the setup in the debug mode, after the switch to release mode
I reached the following results
started on 4x24 cores
549250 dofs for Cahn Hilliard system
dof renumbering, wall time: 0.194882s.
reinit of system matrix, wall time: 0.025027s.
Setup CH, wall time: 0.464638s.
21841796 dofs for Navier-Stokes system
constraint matrix preparation, wall time: 92.1981s.
computing_timer.enter_subsection("constraint matrix preparation");
constraint_matrix_nse.clear();
constraint_matrix_nse.reinit(locally_relevant_dofs_nse);
DoFTools::make_hanging_node_constraints(dof_handler_nse,
constraint_matrix_nse);
std::vector<bool> component_mask(dim + 1, false);
for (int i = 0; i < dim; ++i)
component_mask[i] = true; // velocities
VectorTools::interpolate_boundary_values(dof_handler_nse, 0,
ConstantFunction<dim>(0., dim + 1), constraint_matrix_nse,
component_mask);
VectorTools::interpolate_boundary_values(dof_handler_nse, 1,
InflowVelocityBoundaryValues<dim>(), constraint_matrix_nse,
component_mask);
/* std::set<types::boundary_id> bound_set;
bound_set.insert(1);
VectorTools::compute_no_normal_flux_constraints(dof_handler_nse, 0,
bound_set, constraint_matrix_nse);
*/
constraint_matrix_nse.close();
computing_timer.leave_subsection();
making sparsity pattern, wall time: 3.96472s.
reinit of system matrix NS, wall time: 3.58887s.
Setup NS, wall time: 134.87s.
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