0 SNES Function norm 0.137187 0 KSP Residual norm 0.105247 1 KSP Residual norm 0.0359927 2 KSP Residual norm 0.0122601 3 KSP Residual norm 0.00419899 4 KSP Residual norm 0.00143524 5 KSP Residual norm 0.000489583 6 KSP Residual norm 0.00016673 7 KSP Residual norm 5.67099e-05 8 KSP Residual norm 1.92711e-05 9 KSP Residual norm 6.54434e-06 10 KSP Residual norm 2.22138e-06 11 KSP Residual norm 7.53764e-07 12 KSP Residual norm 2.5571e-07 13 KSP Residual norm 8.67341e-08 14 KSP Residual norm 2.9416e-08 15 KSP Residual norm 9.97567e-09 16 KSP Residual norm 3.38281e-09 17 KSP Residual norm 1.14709e-09 18 KSP Residual norm 3.890e-10 19 KSP Residual norm 1.319e-10 20 KSP Residual norm 4.472e-11 1 SNES Function norm 1.401e-10 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 SNES Object: 1 MPI process type: newtonls maximum iterations=50, maximum function evaluations=10000 tolerances: relative=1e-08, absolute=1e-50, solution=1e-08 total number of linear solver iterations=20 total number of function evaluations=2 norm schedule ALWAYS Jacobian is built using a DMDA local Jacobian SNESLineSearch Object: 1 MPI process type: bt interpolation: cubic alpha=1.000000e-04 maxlambda=1.000000e+00, minlambda=1.000000e-12 tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08 maximum iterations=40 KSP Object: 1 MPI process type: richardson damping factor=1. maximum iterations=10000, initial guess is zero tolerances: relative=1e-09, absolute=1e-50, divergence=10000. left preconditioning using PRECONDITIONED norm type for convergence test PC Object: 1 MPI process type: asm total subdomain blocks = 3, amount of overlap = 0 restriction/interpolation type - RESTRICT Additive Schwarz: local solve composition type - MULTIPLICATIVE Local solver information for first block is in the following KSP and PC objects on rank 0: Use -ksp_view ::ascii_info_detail to display information for all blocks KSP Object: (sub_) 1 MPI process type: preonly maximum iterations=10000, initial guess is zero tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning not checking for convergence PC Object: (sub_) 1 MPI process type: lu out-of-place factorization tolerance for zero pivot 2.22045e-14 matrix ordering: nd factor fill ratio given 5., needed 1.45714 Factored matrix: Mat Object: (sub_) 1 MPI process type: seqaij rows=11, cols=11 package used to perform factorization: petsc total: nonzeros=51, allocated nonzeros=51 not using I-node routines linear system matrix, which is also used to construct the preconditioner: Mat Object: (sub_) 1 MPI process type: seqaij rows=11, cols=11 total: nonzeros=35, allocated nonzeros=35 total number of mallocs used during MatSetValues calls=0 not using I-node routines linear system matrix, which is also used to construct the preconditioner: Mat Object: 1 MPI process type: seqaij rows=32, cols=32 total: nonzeros=136, allocated nonzeros=136 total number of mallocs used during MatSetValues calls=0 not using I-node routines N: 32 error L2 1.19609e-11 inf 4.63191e-11