1 0 SNES Function norm 0.197531 2 0 KSP Residual norm 0.0658436 3 1 KSP Residual norm 0.0219479 4 2 KSP Residual norm 0.00731596 5 3 KSP Residual norm 0.00243865 6 4 KSP Residual norm 0.000812884 7 5 KSP Residual norm 0.000270961 8 6 KSP Residual norm 9.03205e-05 9 7 KSP Residual norm 3.01068e-05 10 8 KSP Residual norm 1.00356e-05 11 9 KSP Residual norm 3.3452e-06 12 10 KSP Residual norm 1.11507e-06 13 11 KSP Residual norm 3.71689e-07 14 12 KSP Residual norm 1.23896e-07 15 13 KSP Residual norm 4.12988e-08 16 14 KSP Residual norm 1.37663e-08 17 15 KSP Residual norm 4.58876e-09 18 16 KSP Residual norm 1.52959e-09 19 17 KSP Residual norm 5.099e-10 20 18 KSP Residual norm 1.700e-10 21 19 KSP Residual norm 5.665e-11 22 1 SNES Function norm 1.700e-10 23Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 24SNES Object: 1 MPI process 25 type: newtonls 26 maximum iterations=50, maximum function evaluations=10000 27 tolerances: relative=1e-08, absolute=1e-50, solution=1e-08 28 total number of linear solver iterations=19 29 total number of function evaluations=2 30 norm schedule ALWAYS 31 Jacobian is built using a DMDA local Jacobian 32 SNESLineSearch Object: 1 MPI process 33 type: bt 34 interpolation: cubic 35 alpha=1.000000e-04 36 maxlambda=1.000000e+00, minlambda=1.000000e-12 37 tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08 38 maximum iterations=40 39 KSP Object: 1 MPI process 40 type: richardson 41 damping factor=1. 42 maximum iterations=10000, initial guess is zero 43 tolerances: relative=1e-09, absolute=1e-50, divergence=10000. 44 left preconditioning 45 using PRECONDITIONED norm type for convergence test 46 PC Object: 1 MPI process 47 type: asm 48 total subdomain blocks = 2, amount of overlap = 0 49 restriction/interpolation type - RESTRICT 50 Local solver information for first block is in the following KSP and PC objects on rank 0: 51 Use -ksp_view ::ascii_info_detail to display information for all blocks 52 KSP Object: (sub_) 1 MPI process 53 type: preonly 54 maximum iterations=10000, initial guess is zero 55 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 56 left preconditioning 57 not checking for convergence 58 PC Object: (sub_) 1 MPI process 59 type: lu 60 out-of-place factorization 61 tolerance for zero pivot 2.22045e-14 62 matrix ordering: nd 63 factor fill ratio given 5., needed 1.35714 64 Factored matrix: 65 Mat Object: (sub_) 1 MPI process 66 type: seqaij 67 rows=8, cols=8 68 package used to perform factorization: petsc 69 total: nonzeros=38, allocated nonzeros=38 70 not using I-node routines 71 linear system matrix, which is also used to construct the preconditioner: 72 Mat Object: (sub_) 1 MPI process 73 type: seqaij 74 rows=8, cols=8 75 total: nonzeros=28, allocated nonzeros=28 76 total number of mallocs used during MatSetValues calls=0 77 not using I-node routines 78 linear system matrix, which is also used to construct the preconditioner: 79 Mat Object: 1 MPI process 80 type: seqaij 81 rows=16, cols=16 82 total: nonzeros=64, allocated nonzeros=64 83 total number of mallocs used during MatSetValues calls=0 84 not using I-node routines 85N: 16 error L2 2.12442e-11 inf 4.24885e-11 86