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Namespaces | |
| oomph | |
| //////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////// | |
| oomph::Hypre_default_settings | |
| ///////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////// | |
| oomph::HypreHelpers | |
| ///////////////////////////////////////////////////////////////////// | |
Functions | |
| void | oomph::Hypre_default_settings::set_defaults_for_2D_poisson_problem (HyprePreconditioner *hypre_preconditioner_pt) |
| Set default parameters for use as preconditioner in 2D Poisson-type problem. More... | |
| void | oomph::Hypre_default_settings::set_defaults_for_3D_poisson_problem (HyprePreconditioner *hypre_preconditioner_pt) |
| Set default parameters for use as preconditioner in 3D Poisson-type problem. More... | |
| void | oomph::Hypre_default_settings::set_defaults_for_navier_stokes_momentum_block (HyprePreconditioner *hypre_preconditioner_pt) |
| Set default parameters for use as preconditioner in for momentum block in Navier-Stokes problem. More... | |
| int | oomph::HypreHelpers::check_HYPRE_error_flag (std::ostringstream &message) |
| Helper function to check the Hypre error flag, return the message associated with any error, and reset the global error flag to zero. This function also returns the error value. More... | |
| void | oomph::HypreHelpers::create_HYPRE_Vector (const DoubleVector &oomph_vec, const LinearAlgebraDistribution *dist_pt, HYPRE_IJVector &hypre_ij_vector, HYPRE_ParVector &hypre_par_vector) |
| Helper function to create a HYPRE_IJVector and HYPRE_ParVector. More... | |
| void | oomph::HypreHelpers::create_HYPRE_Vector (const LinearAlgebraDistribution *dist_pt, HYPRE_IJVector &hypre_ij_vector, HYPRE_ParVector &hypre_par_vector) |
| Helper function to create a HYPRE_IJVector and HYPRE_ParVector. More... | |
| void | oomph::HypreHelpers::create_HYPRE_Matrix (CRDoubleMatrix *oomph_matrix, HYPRE_IJMatrix &hypre_ij_matrix, HYPRE_ParCSRMatrix &hypre_par_matrix, LinearAlgebraDistribution *dist_pt) |
| Helper function to create a serial HYPRE_IJMatrix and HYPRE_ParCSRMatrix from a CRDoubleMatrix NOTE: dist_pt is rebuilt to match the distribution of the hypre solver which is not necassarily the same as the oomph lib matrix. More... | |
| void | oomph::HypreHelpers::euclid_settings_helper (const bool &use_block_jacobi, const bool &use_row_scaling, const bool &use_ilut, const int &level, const double &drop_tol, const int &print_level, HYPRE_Solver &euclid_object) |
| Helper function to set Euclid options using a command line like array. More... | |
Variables | |
| double | oomph::HypreHelpers::AMG_strength = 0.25 |
| Default for AMG strength (0.25 recommended for 2D problems; larger (0.5-0.75, say) for 3D. More... | |
| unsigned | oomph::HypreHelpers::AMG_coarsening = 6 |
| Default AMG coarsening strategy. Coarsening types include: 0 = CLJP (parallel coarsening using independent sets) 1 = classical RS with no boundary treatment (not recommended in parallel) 3 = modified RS with 3rd pass to add C points on the boundaries 6 = Falgout (uses 1 then CLJP using interior coarse points as first independent set) 8 = PMIS (parallel coarsening using independent sets - lower complexities than 0, maybe also slower convergence) 10= HMIS (one pass RS on each processor then PMIS on interior coarse points as first independent set) 11= One pass RS on each processor (not recommended) More... | |
| double | oomph::HypreHelpers::AMG_truncation = 0.0 |
| AMG interpolation truncation factor. More... | |