0 SNES Function norm 0.207564 1 SNES Function norm 0.0148968 2 SNES Function norm 0.000113967 3 SNES Function norm 6.92417e-09 4 SNES Function norm < 1.e-11 SNES Object: 4 MPI processes type: ls line search variant: SNESLineSearchCubic alpha=0.0001, maxstep=1e+08, minlambda=1e-12 maximum iterations=50, maximum function evaluations=10000 tolerances: relative=1e-08, absolute=1e-50, solution=1e-08 total number of linear solver iterations=4 total number of function evaluations=5 KSP Object: 4 MPI processes type: gmres restart=30, using classical (unmodified) Gram-Schmidt orthogonalization with one step of 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: bjacobi number of blocks = 4 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 using PRECONDITIONED norm type for convergence test PC Object: (sub_) 1 MPI process type: ilu out-of-place factorization 0 levels of fill tolerance for zero pivot 1e-12 using diagonal shift to prevent zero pivot [NONZERO] matrix ordering: natural factor fill ratio given 1., needed 1. Factored matrix: Mat Object: (sub_) 1 MPI process type: seqaij rows=4, cols=4 package used to perform factorization: petsc total: nonzeros=12, allocated nonzeros=12 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=4, cols=4 total: nonzeros=12, allocated nonzeros=12 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: 4 MPI processes type: mpiaij rows=16, cols=16 total: nonzeros=64, allocated nonzeros=64 total number of mallocs used during MatSetValues calls=0 Mat Object: 4 MPI processes type: mpiaij rows=16, cols=16 total: nonzeros=64, allocated nonzeros=64 total number of mallocs used during MatSetValues calls=0 not using I-node (on process 0) routines Number of SNES iterations = 4