xref: /petsc/src/snes/tutorials/output/ex12_fas_newton_1.out (revision 4e8afd12df985612b40e26aef947da2f566aee4e)
1  0 SNES Function norm 8.32828
2    0 SNES Function norm 8.32828
3    1 SNES Function norm 6.223e-10
4      0 SNES Function norm 4.482e-10
5      1 SNES Function norm < 1.e-11
6        0 SNES Function norm < 1.e-11
7        1 SNES Function norm < 1.e-11
8      0 SNES Function norm < 1.e-11
9      1 SNES Function norm < 1.e-11
10    0 SNES Function norm 5.875e-10
11    1 SNES Function norm < 1.e-11
12  1 SNES Function norm < 1.e-11
13L_2 Error: 0.00131794
14Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1
15SNES Object: 1 MPI processes
16  type: fas
17    type is MULTIPLICATIVE, levels=3, cycles=1
18    Not using Galerkin computed coarse grid function evaluation
19    Coarse grid solver -- level 0 -------------------------------
20    SNES Object: (fas_coarse_) 1 MPI processes
21      type: newtonls
22      maximum iterations=50, maximum function evaluations=10000
23      tolerances: relative=1e-08, absolute=1e-50, solution=1e-08
24      total number of linear solver iterations=1
25      total number of function evaluations=1
26      SNESLineSearch Object: (fas_coarse_) 1 MPI processes
27        type: basic
28        maxstep=1.000000e+08, minlambda=1.000000e-12
29        tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08
30        maximum iterations=40
31      KSP Object: (fas_coarse_) 1 MPI processes
32        type: gmres
33          restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
34          happy breakdown tolerance 1e-30
35        maximum iterations=10000, initial guess is zero
36        tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
37        left preconditioning
38        using PRECONDITIONED norm type for convergence test
39      PC Object: (fas_coarse_) 1 MPI processes
40        type: lu
41          out-of-place factorization
42          tolerance for zero pivot 2.22045e-14
43          matrix ordering: nd
44          factor fill ratio given 5., needed 1.39024
45            Factored matrix follows:
46              Mat Object: 1 MPI processes
47                type: seqaij
48                rows=9, cols=9
49                package used to perform factorization: petsc
50                total: nonzeros=57, allocated nonzeros=57
51                total number of mallocs used during MatSetValues calls=0
52                  using I-node routines: found 7 nodes, limit used is 5
53        linear system matrix = precond matrix:
54        Mat Object: 1 MPI processes
55          type: seqaij
56          rows=9, cols=9
57          total: nonzeros=41, allocated nonzeros=41
58          total number of mallocs used during MatSetValues calls=0
59            not using I-node routines
60    Down solver (pre-smoother) on level 1 -------------------------------
61    SNES Object: (fas_levels_1_) 1 MPI processes
62      type: newtonls
63      maximum iterations=1, maximum function evaluations=30000
64      tolerances: relative=0., absolute=0., solution=0.
65      total number of linear solver iterations=15
66      total number of function evaluations=2
67      norm schedule FINALONLY
68      SNESLineSearch Object: (fas_levels_1_) 1 MPI processes
69        type: basic
70        maxstep=1.000000e+08, minlambda=1.000000e-12
71        tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08
72        maximum iterations=40
73      KSP Object: (fas_levels_1_) 1 MPI processes
74        type: gmres
75          restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
76          happy breakdown tolerance 1e-30
77        maximum iterations=10000, initial guess is zero
78        tolerances:  relative=1e-10, absolute=1e-50, divergence=10000.
79        left preconditioning
80        using PRECONDITIONED norm type for convergence test
81      PC Object: (fas_levels_1_) 1 MPI processes
82        type: ilu
83          out-of-place factorization
84          0 levels of fill
85          tolerance for zero pivot 2.22045e-14
86          matrix ordering: natural
87          factor fill ratio given 1., needed 1.
88            Factored matrix follows:
89              Mat Object: 1 MPI processes
90                type: seqaij
91                rows=49, cols=49
92                package used to perform factorization: petsc
93                total: nonzeros=289, allocated nonzeros=289
94                total number of mallocs used during MatSetValues calls=0
95                  not using I-node routines
96        linear system matrix = precond matrix:
97        Mat Object: 1 MPI processes
98          type: seqaij
99          rows=49, cols=49
100          total: nonzeros=289, allocated nonzeros=289
101          total number of mallocs used during MatSetValues calls=0
102            not using I-node routines
103    Up solver (post-smoother) same as down solver (pre-smoother)
104    Down solver (pre-smoother) on level 2 -------------------------------
105    SNES Object: (fas_levels_2_) 1 MPI processes
106      type: newtonls
107      maximum iterations=1, maximum function evaluations=30000
108      tolerances: relative=0., absolute=0., solution=0.
109      total number of linear solver iterations=27
110      total number of function evaluations=2
111      norm schedule FINALONLY
112      SNESLineSearch Object: (fas_levels_2_) 1 MPI processes
113        type: basic
114        maxstep=1.000000e+08, minlambda=1.000000e-12
115        tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08
116        maximum iterations=40
117      KSP Object: (fas_levels_2_) 1 MPI processes
118        type: gmres
119          restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
120          happy breakdown tolerance 1e-30
121        maximum iterations=10000, initial guess is zero
122        tolerances:  relative=1e-10, absolute=1e-50, divergence=10000.
123        left preconditioning
124        using PRECONDITIONED norm type for convergence test
125      PC Object: (fas_levels_2_) 1 MPI processes
126        type: ilu
127          out-of-place factorization
128          0 levels of fill
129          tolerance for zero pivot 2.22045e-14
130          matrix ordering: natural
131          factor fill ratio given 1., needed 1.
132            Factored matrix follows:
133              Mat Object: 1 MPI processes
134                type: seqaij
135                rows=225, cols=225
136                package used to perform factorization: petsc
137                total: nonzeros=1457, allocated nonzeros=1457
138                total number of mallocs used during MatSetValues calls=0
139                  not using I-node routines
140        linear system matrix = precond matrix:
141        Mat Object: 1 MPI processes
142          type: seqaij
143          rows=225, cols=225
144          total: nonzeros=1457, allocated nonzeros=1457
145          total number of mallocs used during MatSetValues calls=0
146            not using I-node routines
147    Up solver (post-smoother) same as down solver (pre-smoother)
148  maximum iterations=10000, maximum function evaluations=30000
149  tolerances: relative=1e-08, absolute=1e-50, solution=1e-08
150  total number of function evaluations=1
151  norm schedule ALWAYS
152