xref: /petsc/src/snes/tutorials/output/ex19_tut_2.out (revision c87ba875e4007ad659b117ea274f03d5f4cd5ea7)
1lid velocity = 0.000106281, prandtl # = 1., grashof # = 1.
2  0 SNES Function norm 1.036007954337e-02
3    0 KSP Residual norm 2.388589583549e+00
4    1 KSP Residual norm 5.715829806981e-01
5    2 KSP Residual norm 4.623679005936e-02
6    3 KSP Residual norm 1.143381177646e-02
7    4 KSP Residual norm 2.015139840224e-03
8    5 KSP Residual norm 4.356196119798e-04
9    6 KSP Residual norm 4.240953066710e-05
10    7 KSP Residual norm 8.848315297175e-06
11  1 SNES Function norm 9.854304971115e-06
12    0 KSP Residual norm 3.868049496775e-05
13    1 KSP Residual norm 7.693574326868e-06
14    2 KSP Residual norm 1.059429116239e-06
15    3 KSP Residual norm 4.004524784804e-07
16    4 KSP Residual norm 1.050186948327e-07
17    5 KSP Residual norm 5.073180513583e-08
18    6 KSP Residual norm 2.510513776297e-08
19    7 KSP Residual norm 1.211886495400e-08
20    8 KSP Residual norm 1.911963112131e-09
21    9 KSP Residual norm 3.005260864225e-10
22  2 SNES Function norm 3.117674497824e-10
23    0 KSP Residual norm 3.005042584730e-10
24    1 KSP Residual norm 1.120673922713e-10
25    2 KSP Residual norm 3.288439453292e-11
26    3 KSP Residual norm 5.822504321413e-12
27    4 KSP Residual norm 2.486684466178e-12
28    5 KSP Residual norm 1.198858055503e-12
29    6 KSP Residual norm 6.255669709502e-13
30    7 KSP Residual norm 1.544647758005e-13
31    8 KSP Residual norm 4.592122224907e-14
32    9 KSP Residual norm 4.984149547392e-15
33   10 KSP Residual norm 8.905129652955e-16
34  3 SNES Function norm 1.045594761851e-14
35SNES Object: 4 MPI processes
36  type: newtonls
37  maximum iterations=50, maximum function evaluations=10000
38  tolerances: relative=1e-08, absolute=1e-50, solution=1e-08
39  total number of linear solver iterations=26
40  total number of function evaluations=4
41  norm schedule ALWAYS
42  Jacobian is built using colored finite differences on a DMDA
43SNESLineSearch Object: 4 MPI processes
44    type: bt
45      interpolation: cubic
46      alpha=1.000000e-04
47    maxstep=1.000000e+08, minlambda=1.000000e-12
48    tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08
49    maximum iterations=40
50  KSP Object: 4 MPI processes
51    type: gmres
52      restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
53      happy breakdown tolerance 1e-30
54    maximum iterations=10000, initial guess is zero
55    tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
56    left preconditioning
57    using PRECONDITIONED norm type for convergence test
58  PC Object: 4 MPI processes
59    type: mg
60      type is MULTIPLICATIVE, levels=6 cycles=v
61        Cycles per PCApply=1
62        Not using Galerkin computed coarse grid matrices
63    Coarse grid solver -- level -------------------------------
64      KSP Object: (mg_coarse_) 4 MPI processes
65        type: preonly
66        maximum iterations=10000, initial guess is zero
67        tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
68        left preconditioning
69        using NONE norm type for convergence test
70      PC Object: (mg_coarse_) 4 MPI processes
71        type: redundant
72          First (color=0) of 4 PCs follows
73          KSP Object: (mg_coarse_redundant_) 1 MPI processes
74            type: preonly
75            maximum iterations=10000, initial guess is zero
76            tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
77            left preconditioning
78            using NONE norm type for convergence test
79          PC Object: (mg_coarse_redundant_) 1 MPI processes
80            type: lu
81              out-of-place factorization
82              tolerance for zero pivot 2.22045e-14
83              using diagonal shift on blocks to prevent zero pivot [INBLOCKS]
84              matrix ordering: nd
85              factor fill ratio given 5., needed 1.875
86                Factored matrix follows:
87                  Mat Object: 1 MPI processes
88                    type: seqaij
89                    rows=64, cols=64, bs=4
90                    package used to perform factorization: petsc
91                    total: nonzeros=1920, allocated nonzeros=1920
92                    total number of mallocs used during MatSetValues calls=0
93                      using I-node routines: found 16 nodes, limit used is 5
94            linear system matrix = precond matrix:
95            Mat Object: 1 MPI processes
96              type: seqaij
97              rows=64, cols=64, bs=4
98              total: nonzeros=1024, allocated nonzeros=1024
99              total number of mallocs used during MatSetValues calls=0
100                using I-node routines: found 16 nodes, limit used is 5
101        linear system matrix = precond matrix:
102        Mat Object: 4 MPI processes
103          type: mpiaij
104          rows=64, cols=64, bs=4
105          total: nonzeros=1024, allocated nonzeros=1024
106          total number of mallocs used during MatSetValues calls=0
107    Down solver (pre-smoother) on level 1 -------------------------------
108      KSP Object: (mg_levels_1_) 4 MPI processes
109        type: chebyshev
110          eigenvalue estimates used:  min = 0.148269, max = 1.63095
111          eigenvalues estimate via gmres min 0.144902, max 1.48269
112          eigenvalues estimated using gmres with translations  [0. 0.1; 0. 1.1]
113          KSP Object: (mg_levels_1_esteig_) 4 MPI processes
114            type: gmres
115              restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
116              happy breakdown tolerance 1e-30
117            maximum iterations=10, initial guess is zero
118            tolerances:  relative=1e-12, absolute=1e-50, divergence=10000.
119            left preconditioning
120            using PRECONDITIONED norm type for convergence test
121          estimating eigenvalues using noisy right hand side
122        maximum iterations=2, nonzero initial guess
123        tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
124        left preconditioning
125        using NONE norm type for convergence test
126      PC Object: (mg_levels_1_) 4 MPI processes
127        type: sor
128          type = local_symmetric, iterations = 1, local iterations = 1, omega = 1.
129        linear system matrix = precond matrix:
130        Mat Object: 4 MPI processes
131          type: mpiaij
132          rows=196, cols=196, bs=4
133          total: nonzeros=3472, allocated nonzeros=3472
134          total number of mallocs used during MatSetValues calls=0
135    Up solver (post-smoother) same as down solver (pre-smoother)
136    Down solver (pre-smoother) on level 2 -------------------------------
137      KSP Object: (mg_levels_2_) 4 MPI processes
138        type: chebyshev
139          eigenvalue estimates used:  min = 0.149178, max = 1.64096
140          eigenvalues estimate via gmres min 0.0843938, max 1.49178
141          eigenvalues estimated using gmres with translations  [0. 0.1; 0. 1.1]
142          KSP Object: (mg_levels_2_esteig_) 4 MPI processes
143            type: gmres
144              restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
145              happy breakdown tolerance 1e-30
146            maximum iterations=10, initial guess is zero
147            tolerances:  relative=1e-12, absolute=1e-50, divergence=10000.
148            left preconditioning
149            using PRECONDITIONED norm type for convergence test
150          estimating eigenvalues using noisy right hand side
151        maximum iterations=2, nonzero initial guess
152        tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
153        left preconditioning
154        using NONE norm type for convergence test
155      PC Object: (mg_levels_2_) 4 MPI processes
156        type: sor
157          type = local_symmetric, iterations = 1, local iterations = 1, omega = 1.
158        linear system matrix = precond matrix:
159        Mat Object: 4 MPI processes
160          type: mpiaij
161          rows=676, cols=676, bs=4
162          total: nonzeros=12688, allocated nonzeros=12688
163          total number of mallocs used during MatSetValues calls=0
164    Up solver (post-smoother) same as down solver (pre-smoother)
165    Down solver (pre-smoother) on level 3 -------------------------------
166      KSP Object: (mg_levels_3_) 4 MPI processes
167        type: chebyshev
168          eigenvalue estimates used:  min = 0.146454, max = 1.61099
169          eigenvalues estimate via gmres min 0.0659153, max 1.46454
170          eigenvalues estimated using gmres with translations  [0. 0.1; 0. 1.1]
171          KSP Object: (mg_levels_3_esteig_) 4 MPI processes
172            type: gmres
173              restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
174              happy breakdown tolerance 1e-30
175            maximum iterations=10, initial guess is zero
176            tolerances:  relative=1e-12, absolute=1e-50, divergence=10000.
177            left preconditioning
178            using PRECONDITIONED norm type for convergence test
179          estimating eigenvalues using noisy right hand side
180        maximum iterations=2, nonzero initial guess
181        tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
182        left preconditioning
183        using NONE norm type for convergence test
184      PC Object: (mg_levels_3_) 4 MPI processes
185        type: sor
186          type = local_symmetric, iterations = 1, local iterations = 1, omega = 1.
187        linear system matrix = precond matrix:
188        Mat Object: 4 MPI processes
189          type: mpiaij
190          rows=2500, cols=2500, bs=4
191          total: nonzeros=48400, allocated nonzeros=48400
192          total number of mallocs used during MatSetValues calls=0
193    Up solver (post-smoother) same as down solver (pre-smoother)
194    Down solver (pre-smoother) on level 4 -------------------------------
195      KSP Object: (mg_levels_4_) 4 MPI processes
196        type: chebyshev
197          eigenvalue estimates used:  min = 0.141089, max = 1.55197
198          eigenvalues estimate via gmres min 0.044097, max 1.41089
199          eigenvalues estimated using gmres with translations  [0. 0.1; 0. 1.1]
200          KSP Object: (mg_levels_4_esteig_) 4 MPI processes
201            type: gmres
202              restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
203              happy breakdown tolerance 1e-30
204            maximum iterations=10, initial guess is zero
205            tolerances:  relative=1e-12, absolute=1e-50, divergence=10000.
206            left preconditioning
207            using PRECONDITIONED norm type for convergence test
208          estimating eigenvalues using noisy right hand side
209        maximum iterations=2, nonzero initial guess
210        tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
211        left preconditioning
212        using NONE norm type for convergence test
213      PC Object: (mg_levels_4_) 4 MPI processes
214        type: sor
215          type = local_symmetric, iterations = 1, local iterations = 1, omega = 1.
216        linear system matrix = precond matrix:
217        Mat Object: 4 MPI processes
218          type: mpiaij
219          rows=9604, cols=9604, bs=4
220          total: nonzeros=188944, allocated nonzeros=188944
221          total number of mallocs used during MatSetValues calls=0
222    Up solver (post-smoother) same as down solver (pre-smoother)
223    Down solver (pre-smoother) on level 5 -------------------------------
224      KSP Object: (mg_levels_5_) 4 MPI processes
225        type: chebyshev
226          eigenvalue estimates used:  min = 0.127956, max = 1.40751
227          eigenvalues estimate via gmres min 0.0380398, max 1.27956
228          eigenvalues estimated using gmres with translations  [0. 0.1; 0. 1.1]
229          KSP Object: (mg_levels_5_esteig_) 4 MPI processes
230            type: gmres
231              restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
232              happy breakdown tolerance 1e-30
233            maximum iterations=10, initial guess is zero
234            tolerances:  relative=1e-12, absolute=1e-50, divergence=10000.
235            left preconditioning
236            using PRECONDITIONED norm type for convergence test
237          estimating eigenvalues using noisy right hand side
238        maximum iterations=2, nonzero initial guess
239        tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
240        left preconditioning
241        using NONE norm type for convergence test
242      PC Object: (mg_levels_5_) 4 MPI processes
243        type: sor
244          type = local_symmetric, iterations = 1, local iterations = 1, omega = 1.
245        linear system matrix = precond matrix:
246        Mat Object: 4 MPI processes
247          type: mpiaij
248          rows=37636, cols=37636, bs=4
249          total: nonzeros=746512, allocated nonzeros=746512
250          total number of mallocs used during MatSetValues calls=0
251    Up solver (post-smoother) same as down solver (pre-smoother)
252    linear system matrix = precond matrix:
253    Mat Object: 4 MPI processes
254      type: mpiaij
255      rows=37636, cols=37636, bs=4
256      total: nonzeros=746512, allocated nonzeros=746512
257      total number of mallocs used during MatSetValues calls=0
258Number of SNES iterations = 3
259