xref: /petsc/src/snes/tutorials/output/ex5_5.out (revision 70646cd191a02c3aba559ba717dac5da7a8a1e20)
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 information for first block is in the following KSP and PC objects on rank 0:
26      Use -ksp_view ::ascii_info_detail to display information for all blocks
27    KSP Object: (sub_) 1 MPI process
28      type: preonly
29      maximum iterations=10000, initial guess is zero
30      tolerances: relative=1e-05, absolute=1e-50, divergence=10000.
31      left preconditioning
32      using PRECONDITIONED norm type for convergence test
33    PC Object: (sub_) 1 MPI process
34      type: ilu
35        out-of-place factorization
36        0 levels of fill
37        tolerance for zero pivot 1e-12
38        using diagonal shift to prevent zero pivot [NONZERO]
39        matrix ordering: natural
40        factor fill ratio given 1., needed 1.
41          Factored matrix:
42            Mat Object: (sub_) 1 MPI process
43              type: seqaij
44              rows=4, cols=4
45              package used to perform factorization: petsc
46              total: nonzeros=12, allocated nonzeros=12
47                not using I-node routines
48      linear system matrix, which is also used to construct the preconditioner:
49      Mat Object: (sub_) 1 MPI process
50        type: seqaij
51        rows=4, cols=4
52        total: nonzeros=12, allocated nonzeros=12
53        total number of mallocs used during MatSetValues calls=0
54          not using I-node routines
55    linear system matrix, which is also used to construct the preconditioner:
56    Mat Object: 4 MPI processes
57      type: mpiaij
58      rows=16, cols=16
59      total: nonzeros=64, allocated nonzeros=64
60      total number of mallocs used during MatSetValues calls=0
61        Mat Object: 4 MPI processes
62          type: mpiaij
63          rows=16, cols=16
64          total: nonzeros=64, allocated nonzeros=64
65          total number of mallocs used during MatSetValues calls=0
66            not using I-node (on process 0) routines
67Number of SNES iterations = 4
68