DM Object: Mesh 1 MPI processes type: plex Mesh in 2 dimensions: 0-cells: 289 1-cells: 800 2-cells: 512 Labels: marker: 1 strata with value/size (1 (128)) Face Sets: 1 strata with value/size (1 (120)) depth: 3 strata with value/size (0 (289), 1 (800), 2 (512)) DM_0x84000000_1 in 2 dimensions: 0-cells: 95 1-cells: 246 2-cells: 152 Labels: _boundary_: 1 strata with value/size (1 (36)) depth: 3 strata with value/size (0 (95), 1 (246), 2 (152)) DM_0x84000000_2 in 2 dimensions: 0-cells: 38 1-cells: 91 2-cells: 54 Labels: _boundary_: 1 strata with value/size (1 (20)) depth: 3 strata with value/size (0 (38), 1 (91), 2 (54)) DM_0x84000000_3 in 2 dimensions: 0-cells: 19 1-cells: 40 2-cells: 22 Labels: _boundary_: 1 strata with value/size (1 (14)) depth: 3 strata with value/size (0 (19), 1 (40), 2 (22)) 0 SNES Function norm 8.32828 0 KSP unpreconditioned resid norm 8.328278903362e+00 true resid norm 8.328278903362e+00 ||r(i)||/||b|| 1.000000000000e+00 1 KSP unpreconditioned resid norm 5.274358775793e-06 true resid norm 5.274358775793e-06 ||r(i)||/||b|| 6.333071739064e-07 2 KSP unpreconditioned resid norm 2.976750476392e-12 true resid norm 2.976750476392e-12 ||r(i)||/||b|| 3.574268478438e-13 1 SNES Function norm < 1.e-11 L_2 Error: 0.00131794 Nonlinear solve converged due to CONVERGED_FNORM_ABS iterations 1 SNES Object: 1 MPI processes type: newtonls maximum iterations=50, maximum function evaluations=10000 tolerances: relative=0., absolute=1e-08, solution=1e-08 total number of linear solver iterations=2 total number of function evaluations=2 norm schedule ALWAYS SNESLineSearch Object: 1 MPI processes type: basic maxstep=1.000000e+08, minlambda=1.000000e-12 tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08 maximum iterations=40 KSP Object: 1 MPI processes type: richardson damping factor=1. maximum iterations=10000, initial guess is zero tolerances: relative=0., absolute=1e-08, divergence=10000. left preconditioning using UNPRECONDITIONED norm type for convergence test PC Object: 1 MPI processes type: mg type is MULTIPLICATIVE, levels=4 cycles=v Cycles per PCApply=1 Not using Galerkin computed coarse grid matrices Coarse grid solver -- level ------------------------------- KSP Object: (mg_coarse_) 1 MPI processes type: preonly maximum iterations=10000, initial guess is zero tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using NONE norm type for convergence test PC Object: (mg_coarse_) 1 MPI processes type: lu out-of-place factorization tolerance for zero pivot 2.22045e-14 using diagonal shift on blocks to prevent zero pivot [INBLOCKS] matrix ordering: nd factor fill ratio given 5., needed 1. Factored matrix follows: Mat Object: 1 MPI processes type: seqaij rows=5, cols=5 package used to perform factorization: petsc total: nonzeros=19, allocated nonzeros=19 not using I-node routines linear system matrix = precond matrix: Mat Object: 1 MPI processes type: seqaij rows=5, cols=5 total: nonzeros=19, allocated nonzeros=19 total number of mallocs used during MatSetValues calls=0 not using I-node routines Down solver (pre-smoother) on level 1 ------------------------------- KSP Object: (mg_levels_1_) 1 MPI processes type: gmres restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement happy breakdown tolerance 1e-30 maximum iterations=10, nonzero initial guess tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using NONE norm type for convergence test PC Object: (mg_levels_1_) 1 MPI processes type: ilu out-of-place factorization 0 levels of fill tolerance for zero pivot 2.22045e-14 matrix ordering: natural factor fill ratio given 1., needed 1. Factored matrix follows: Mat Object: 1 MPI processes type: seqaij rows=18, cols=18 package used to perform factorization: petsc total: nonzeros=92, allocated nonzeros=92 not using I-node routines linear system matrix = precond matrix: Mat Object: 1 MPI processes type: seqaij rows=18, cols=18 total: nonzeros=92, allocated nonzeros=92 total number of mallocs used during MatSetValues calls=0 not using I-node routines Up solver (post-smoother) same as down solver (pre-smoother) Down solver (pre-smoother) on level 2 ------------------------------- KSP Object: (mg_levels_2_) 1 MPI processes type: gmres restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement happy breakdown tolerance 1e-30 maximum iterations=10, nonzero initial guess tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using NONE norm type for convergence test PC Object: (mg_levels_2_) 1 MPI processes type: ilu out-of-place factorization 0 levels of fill tolerance for zero pivot 2.22045e-14 matrix ordering: natural factor fill ratio given 1., needed 1. Factored matrix follows: Mat Object: 1 MPI processes type: seqaij rows=59, cols=59 package used to perform factorization: petsc total: nonzeros=353, allocated nonzeros=353 not using I-node routines linear system matrix = precond matrix: Mat Object: 1 MPI processes type: seqaij rows=59, cols=59 total: nonzeros=353, allocated nonzeros=353 total number of mallocs used during MatSetValues calls=0 not using I-node routines Up solver (post-smoother) same as down solver (pre-smoother) Down solver (pre-smoother) on level 3 ------------------------------- KSP Object: (mg_levels_3_) 1 MPI processes type: gmres restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement happy breakdown tolerance 1e-30 maximum iterations=10, nonzero initial guess tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using NONE norm type for convergence test PC Object: (mg_levels_3_) 1 MPI processes type: ilu out-of-place factorization 0 levels of fill tolerance for zero pivot 2.22045e-14 matrix ordering: natural factor fill ratio given 1., needed 1. Factored matrix follows: Mat Object: 1 MPI processes type: seqaij rows=225, cols=225 package used to perform factorization: petsc total: nonzeros=1457, allocated nonzeros=1457 not using I-node routines linear system matrix = precond matrix: Mat Object: 1 MPI processes type: seqaij rows=225, cols=225 total: nonzeros=1457, allocated nonzeros=1457 total number of mallocs used during MatSetValues calls=0 not using I-node routines Up solver (post-smoother) same as down solver (pre-smoother) linear system matrix = precond matrix: Mat Object: 1 MPI processes type: seqaij rows=225, cols=225 total: nonzeros=1457, allocated nonzeros=1457 total number of mallocs used during MatSetValues calls=0 not using I-node routines