0 SNES Function norm 8.32828 0 KSP Residual norm 5.6599 1 KSP Residual norm 1.6573 2 KSP Residual norm 0.795119 3 KSP Residual norm 0.450895 4 KSP Residual norm 0.220114 5 KSP Residual norm 0.0802121 6 KSP Residual norm 0.0123993 7 KSP Residual norm 0.00268483 8 KSP Residual norm 0.000819275 9 KSP Residual norm 0.000220428 10 KSP Residual norm 3.29995e-05 11 KSP Residual norm 6.74624e-06 12 KSP Residual norm 7.5397e-07 13 KSP Residual norm 2.15979e-07 14 KSP Residual norm 2.0235e-08 15 KSP Residual norm 1.5961e-09 Linear solve converged due to CONVERGED_RTOL iterations 15 1 SNES Function norm 3.20022e-09 L_2 Error: 0.00131794 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=15 total number of function evaluations=2 norm schedule ALWAYS 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: gmres restart=100, using classical (unmodified) Gram-Schmidt orthogonalization with no iterative refinement happy breakdown tolerance=1e-30 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 = 4, amount of overlap = 1 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: sor type = local_symmetric, iterations = 1, local iterations = 1, omega = 1. linear system matrix, which is also used to construct the preconditioner: Mat Object: (sub_) 1 MPI process type: seqaij rows=224, cols=224 total: nonzeros=1452, allocated nonzeros=1452 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=225, cols=225 total: nonzeros=1457, allocated nonzeros=1457 total number of mallocs used during MatSetValues calls=0 not using I-node routines