xref: /petsc/src/snes/tutorials/output/ex12_tri_q2q1_asm_lu.out (revision 70646cd191a02c3aba559ba717dac5da7a8a1e20)
1  0 SNES Function norm 8.32828
2    0 KSP Residual norm 8.38655
3    1 KSP Residual norm 3.23184
4    2 KSP Residual norm 0.630265
5    3 KSP Residual norm 0.15451
6    4 KSP Residual norm 0.0374104
7    5 KSP Residual norm 0.00688704
8    6 KSP Residual norm 0.00122682
9    7 KSP Residual norm 0.000212093
10    8 KSP Residual norm 4.68218e-05
11    9 KSP Residual norm 3.04171e-06
12   10 KSP Residual norm 4.21397e-07
13   11 KSP Residual norm 4.61568e-08
14   12 KSP Residual norm 7.33045e-09
15  Linear solve converged due to CONVERGED_RTOL iterations 12
16  1 SNES Function norm 3.17797e-08
17L_2 Error: 0.00131794
18Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
19SNES Object: 1 MPI process
20  type: newtonls
21  maximum iterations=50, maximum function evaluations=10000
22  tolerances: relative=1e-08, absolute=1e-50, solution=1e-08
23  total number of linear solver iterations=12
24  total number of function evaluations=2
25  norm schedule ALWAYS
26  SNESLineSearch Object: 1 MPI process
27    type: bt
28      interpolation: cubic
29      alpha=1.000000e-04
30    maxlambda=1.000000e+00, minlambda=1.000000e-12
31    tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08
32    maximum iterations=40
33  KSP Object: 1 MPI process
34    type: gmres
35      restart=100, using classical (unmodified) Gram-Schmidt orthogonalization with no iterative refinement
36      happy breakdown tolerance=1e-30
37    maximum iterations=10000, initial guess is zero
38    tolerances: relative=1e-09, absolute=1e-50, divergence=10000.
39    left preconditioning
40    using PRECONDITIONED norm type for convergence test
41  PC Object: 1 MPI process
42    type: asm
43      total subdomain blocks = 4, amount of overlap = 1
44      restriction/interpolation type - RESTRICT
45      Local solver information for first block is in the following KSP and PC objects on rank 0:
46      Use -ksp_view ::ascii_info_detail to display information for all blocks
47    KSP Object: (sub_) 1 MPI process
48      type: preonly
49      maximum iterations=10000, initial guess is zero
50      tolerances: relative=1e-05, absolute=1e-50, divergence=10000.
51      left preconditioning
52      not checking for convergence
53    PC Object: (sub_) 1 MPI process
54      type: lu
55        out-of-place factorization
56        tolerance for zero pivot 2.22045e-14
57        matrix ordering: nd
58        factor fill ratio given 5., needed 3.40496
59          Factored matrix:
60            Mat Object: (sub_) 1 MPI process
61              type: seqaij
62              rows=224, cols=224
63              package used to perform factorization: petsc
64              total: nonzeros=4944, allocated nonzeros=4944
65                not using I-node routines
66      linear system matrix, which is also used to construct the preconditioner:
67      Mat Object: (sub_) 1 MPI process
68        type: seqaij
69        rows=224, cols=224
70        total: nonzeros=1452, allocated nonzeros=1452
71        total number of mallocs used during MatSetValues calls=0
72          not using I-node routines
73    linear system matrix, which is also used to construct the preconditioner:
74    Mat Object: 1 MPI process
75      type: seqaij
76      rows=225, cols=225
77      total: nonzeros=1457, allocated nonzeros=1457
78      total number of mallocs used during MatSetValues calls=0
79        not using I-node routines
80