0 SNES Function norm 6.61942 0 KSP Residual norm 6.61942 1 KSP Residual norm 2.31191 2 KSP Residual norm 1.86097 3 KSP Residual norm 1.32498 4 KSP Residual norm 0.38112 5 KSP Residual norm 0.104722 6 KSP Residual norm 0.0173509 7 KSP Residual norm 0.00612586 8 KSP Residual norm 0.00134469 9 KSP Residual norm 0.00043695 10 KSP Residual norm 8.91998e-05 11 KSP Residual norm 1.21254e-05 1 SNES Function norm 0.276602 0 KSP Residual norm 0.276602 1 KSP Residual norm 0.116835 2 KSP Residual norm 0.0552827 3 KSP Residual norm 0.0332203 4 KSP Residual norm 0.00554311 5 KSP Residual norm 0.00114928 6 KSP Residual norm 0.000359537 7 KSP Residual norm 0.000103556 8 KSP Residual norm 3.36437e-05 9 KSP Residual norm 9.98437e-06 10 KSP Residual norm 3.82372e-06 11 KSP Residual norm 2.05596e-07 2 SNES Function norm 0.00114263 0 KSP Residual norm 0.00114263 1 KSP Residual norm 0.000514134 2 KSP Residual norm 0.000217556 3 KSP Residual norm 0.000141758 4 KSP Residual norm 2.24943e-05 5 KSP Residual norm 4.0278e-06 6 KSP Residual norm 1.94568e-06 7 KSP Residual norm 4.39092e-07 8 KSP Residual norm 1.20951e-07 9 KSP Residual norm 3.88106e-08 10 KSP Residual norm 1.47473e-08 11 KSP Residual norm 8.100e-10 3 SNES Function norm 2.04173e-08 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 3 SNES Object: 4 MPI processes type: aspin maximum iterations=50, maximum function evaluations=10000 tolerances: relative=1e-08, absolute=1e-50, solution=1e-08 total number of linear solver iterations=33 total number of function evaluations=0 norm schedule ALWAYS Jacobian is built using a DMDA local Jacobian SNESLineSearch Object: 4 MPI processes 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 SNES Object: (npc_) 4 MPI processes type: nasm total subdomain blocks = 4 Local solver information for first block on rank 0: Use -npc_snes_view ::ascii_info_detail to display information for all blocks SNES Object: (npc_sub_) 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=1 total number of function evaluations=3 norm schedule ALWAYS Jacobian is built using a DMDA local Jacobian SNESLineSearch Object: (npc_sub_) 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: (npc_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: (npc_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 4.91439 Factored matrix: Mat Object: (npc_sub_) 1 MPI process type: seqaij rows=784, cols=784 package used to perform factorization: petsc total: nonzeros=18714, allocated nonzeros=18714 not using I-node routines linear system matrix, which is also used to construct the preconditioner: Mat Object: 1 MPI process type: seqaij rows=784, cols=784 total: nonzeros=3808, allocated nonzeros=3808 total number of mallocs used during MatSetValues calls=0 not using I-node routines maximum iterations=1, maximum function evaluations=10000 tolerances: relative=0., absolute=0., solution=0. total number of function evaluations=4 Jacobian is built using a DMDA local Jacobian KSP Object: 4 MPI processes type: gmres restart=30, 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-05, absolute=1e-50, divergence=10000. left preconditioning using PRECONDITIONED norm type for convergence test PC Object: 4 MPI processes type: none linear system matrix, followed by the matrix used to construct the preconditioner: Mat Object: 4 MPI processes type: shell rows=2401, cols=2401 Mat Object: 4 MPI processes type: mpiaij rows=2401, cols=2401 total: nonzeros=11809, allocated nonzeros=11809 total number of mallocs used during MatSetValues calls=0