1 0 SNES Function norm 0.207564 2 1 SNES Function norm 0.0148968 3 2 SNES Function norm 0.000113967 4 3 SNES Function norm 6.92417e-09 5 4 SNES Function norm < 1.e-11 6SNES Object: 4 MPI processes 7 type: ls 8 line search variant: SNESLineSearchCubic 9 alpha=0.0001, maxstep=1e+08, minlambda=1e-12 10 maximum iterations=50, maximum function evaluations=10000 11 tolerances: relative=1e-08, absolute=1e-50, solution=1e-08 12 total number of linear solver iterations=4 13 total number of function evaluations=5 14 KSP Object: 4 MPI processes 15 type: gmres 16 restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with one step of iterative refinement 17 happy breakdown tolerance 1e-30 18 maximum iterations=10000, initial guess is zero 19 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 20 left preconditioning 21 using PRECONDITIONED norm type for convergence test 22 PC Object: 4 MPI processes 23 type: bjacobi 24 number of blocks = 4 25 Local solver is the same for all blocks, as in the following KSP and PC objects on rank 0: 26 KSP Object: (sub_) 1 MPI processes 27 type: preonly 28 maximum iterations=10000, initial guess is zero 29 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 30 left preconditioning 31 using PRECONDITIONED norm type for convergence test 32 PC Object: (sub_) 1 MPI processes 33 type: ilu 34 out-of-place factorization 35 0 levels of fill 36 tolerance for zero pivot 1e-12 37 using diagonal shift to prevent zero pivot [NONZERO] 38 matrix ordering: natural 39 factor fill ratio given 1., needed 1. 40 Factored matrix follows: 41 Mat Object: 1 MPI processes 42 type: seqaij 43 rows=4, cols=4 44 package used to perform factorization: petsc 45 total: nonzeros=12, allocated nonzeros=12 46 not using I-node routines 47 linear system matrix = precond matrix: 48 Mat Object: 1 MPI processes 49 type: seqaij 50 rows=4, cols=4 51 total: nonzeros=12, allocated nonzeros=12 52 total number of mallocs used during MatSetValues calls=0 53 not using I-node routines 54 linear system matrix = precond matrix: 55 Mat Object: 4 MPI processes 56 type: mpiaij 57 rows=16, cols=16 58 total: nonzeros=64, allocated nonzeros=64 59 total number of mallocs used during MatSetValues calls=0 60 Mat Object: 4 MPI processes 61 type: mpiaij 62 rows=16, cols=16 63 total: nonzeros=64, allocated nonzeros=64 64 total number of mallocs used during MatSetValues calls=0 65 not using I-node (on process 0) routines 66Number of SNES iterations = 4 67