1-da_grid_x 5
2-da_grid_y 5
3-dmmg_nlevels 3
4
5-snes_atol 1.e-12
6
7-ksp_type gmres
8-ksp_atol 1.e-14
9-ksp_left_pc
10
11-mg_coarse_pc_type lu
12-mg_coarse_pc_lu_damping
13-mg_levels_pc_type sor
14-mg_levels_pc_sor_local_symmetric
15-mg_levels_ksp_type richardson
16
17