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version 0.6.0
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version 0.6.0
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ParCSR BoomerAMG precond.
Inheritance diagram for type_solver_hypre::t_hypre_precond_parcsr_boomeramg:Public Attributes | |
| real(c_double) | strong_threshold = 0.25_C_DOUBLE |
| AMG strength threshold. | |
| integer(hypre_int) | coarsen_type = 6 |
| Parallel coarsening algorithm. | |
| integer(hypre_int) | interp_type = 0 |
| Parallel interpolation operator. | |
| integer(hypre_int) | post_interp_type = 0 |
| integer(hypre_int) | relax_type = 1 |
| Smoother algorithm. | |
| integer(hypre_int) | agg_num_levels = 0 |
| Number of levels of aggressive coarsening. | |
| integer(hypre_int) | agg_num_paths = 1 |
| Number of paths for aggressive coarsening. | |
| real(c_double) | interp_trunc = 0.0_C_DOUBLE |
| Interpolation Truncation. | |
| integer(hypre_int) | p_max = 5 |
| Maximum number of elements per row for the interpolation. | |
| integer(hypre_int) | inter_type_agg = 4 |
| Interolation used on levels of aggressive coarsening. | |
| Public Attributes inherited from type_solver_hypre::t_hypre_solver_interface | |
| logical | single_setup = .true. |
| Do Hypre set-up only at first iteration. | |
| logical | single_setup_flag = .false. |
| Associated flag (set to true after 1 iteration) | |
| logical | single_setup_cst_matrix_coef = .false. |
| If matrix coefficients do not change with time, single set up can be improved. | |
| logical | single_setup_cst_matrix_coef_flag = .false. |
| Associated flag (set to true after 1 iteration) | |
| integer(hypre_int) | logging = 1 |
| Amount of logging to do. | |
| integer(hypre_int) | print_level = 0 |
| Amount of printing to the screen to do. | |
| Public Attributes inherited from type_solver::t_iterative_solver | |
| integer | max_iter = 1000 |
| Maximum allowed number of iterations. | |
| double precision | tolerance = 1d-13 |
| Residual relative tolerence. | |
| integer | final_iter = -1 |
| Number of iteration of the last exectution. | |
| Public Attributes inherited from type_solver::t_linear_solver | |
| logical | use_jacobi_initial_preconditioner = .true. |
| Apply Jacobi preconditioning before calling the linear solver. | |
| double precision | residual = -1d0 |
| Residual of the last execution. | |
| real(c_double) type_solver_hypre::t_hypre_precond_parcsr_boomeramg::strong_threshold = 0.25_C_DOUBLE |
The default is 0.25. For 2d Laplace operators, 0.25 is a good value, for 3d Laplace operators, 0.5 or 0.6 is a better value. For elasticity problems, a large strength threshold, such as 0.9, is often better.(eh??)
1.11.0 