xref: /petsc/src/ksp/ksp/tutorials/output/ex82_1.out (revision 5fedec97950c19de564efaecd0f125b1a6cb2b20)
1Linear solve converged due to CONVERGED_RTOL iterations 18
2KSP Object: 4 MPI processes
3  type: gmres
4    restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
5    happy breakdown tolerance 1e-30
6  maximum iterations=10000, initial guess is zero
7  tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
8  left preconditioning
9  using PRECONDITIONED norm type for convergence test
10PC Object: 4 MPI processes
11  type: hpddm
12  levels: 2
13  Neumann matrix attached? FALSE
14  coarse correction: DEFLATED
15  on process #0, value (+ threshold if available) for selecting deflation vectors: 1
16  grid and operator complexities: 1.005 16.
17  KSP Object: (pc_hpddm_levels_1_) 4 MPI processes
18    type: preonly
19    maximum iterations=10000, initial guess is zero
20    tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
21    left preconditioning
22    using NONE norm type for convergence test
23  PC Object: (pc_hpddm_levels_1_) 4 MPI processes
24    type: shell
25      no name
26    linear system matrix = precond matrix:
27    Mat Object: 4 MPI processes
28      type: htool
29      rows=800, cols=800
30        symmetry: N
31        minimum cluster size: 10
32        maximum block size: 1000000
33        epsilon: 0.01
34        eta: 10.
35        minimum target depth: 0
36        minimum source depth: 0
37        compressor: sympartialACA
38        clustering: PCARegular
39        compression ratio: 1.08851
40        space saving: 0.0813156
41        (minimum, mean, maximum) dense block sizes: (144, 288.562, 2500)
42        (minimum, mean, maximum) low rank block sizes: (144, 164.113, 625)
43        (minimum, mean, maximum) ranks: (2, 4.8792, 7)
44  PC Object: (pc_hpddm_levels_1_) 4 MPI processes
45    type: asm
46      total subdomain blocks = 4, user-defined overlap
47      restriction/interpolation type - RESTRICT
48      Local solver information for first block is in the following KSP and PC objects on rank 0:
49      Use -pc_hpddm_levels_1_ksp_view ::ascii_info_detail to display information for all blocks
50    KSP Object: (pc_hpddm_levels_1_sub_) 1 MPI processes
51      type: preonly
52      maximum iterations=10000, initial guess is zero
53      tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
54      left preconditioning
55      using NONE norm type for convergence test
56    PC Object: (pc_hpddm_levels_1_sub_) 1 MPI processes
57      type: lu
58        out-of-place factorization
59        tolerance for zero pivot 2.22045e-14
60        matrix ordering: external
61        factor fill ratio given 0., needed 0.
62          Factored matrix follows:
63            Mat Object: 1 MPI processes
64              type: seqdense
65              rows=202, cols=202
66              package used to perform factorization: petsc
67              total: nonzeros=40804, allocated nonzeros=40804
68      linear system matrix = precond matrix:
69      Mat Object: (pc_hpddm_levels_1_sub_) 1 MPI processes
70        type: seqdense
71        rows=202, cols=202
72        total: nonzeros=40804, allocated nonzeros=40804
73        total number of mallocs used during MatSetValues calls=0
74    linear system matrix = precond matrix:
75    Mat Object: 4 MPI processes
76      type: htool
77      rows=800, cols=800
78        symmetry: N
79        minimum cluster size: 10
80        maximum block size: 1000000
81        epsilon: 0.01
82        eta: 10.
83        minimum target depth: 0
84        minimum source depth: 0
85        compressor: sympartialACA
86        clustering: PCARegular
87        compression ratio: 1.08851
88        space saving: 0.0813156
89        (minimum, mean, maximum) dense block sizes: (144, 288.562, 2500)
90        (minimum, mean, maximum) low rank block sizes: (144, 164.113, 625)
91        (minimum, mean, maximum) ranks: (2, 4.8792, 7)
92    KSP Object: (pc_hpddm_coarse_) 1 MPI processes
93      type: gmres
94        restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
95        happy breakdown tolerance 1e-30
96      maximum iterations=10000, initial guess is zero
97      tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
98      left preconditioning
99      using PRECONDITIONED norm type for convergence test
100    PC Object: (pc_hpddm_coarse_) 1 MPI processes
101      type: lu
102        out-of-place factorization
103        tolerance for zero pivot 2.22045e-14
104        matrix ordering: external
105        factor fill ratio given 0., needed 0.
106          Factored matrix follows:
107            Mat Object: 1 MPI processes
108              type: seqdense
109              rows=4, cols=4
110              package used to perform factorization: petsc
111              total: nonzeros=16, allocated nonzeros=16
112      linear system matrix = precond matrix:
113      Mat Object: (pc_hpddm_coarse_) 1 MPI processes
114        type: seqdense
115        rows=4, cols=4
116        total: nonzeros=16, allocated nonzeros=16
117        total number of mallocs used during MatSetValues calls=0
118  linear system matrix = precond matrix:
119  Mat Object: 4 MPI processes
120    type: htool
121    rows=800, cols=800
122      symmetry: N
123      minimum cluster size: 10
124      maximum block size: 1000000
125      epsilon: 0.01
126      eta: 10.
127      minimum target depth: 0
128      minimum source depth: 0
129      compressor: sympartialACA
130      clustering: PCARegular
131      compression ratio: 1.08851
132      space saving: 0.0813156
133      (minimum, mean, maximum) dense block sizes: (144, 288.562, 2500)
134      (minimum, mean, maximum) low rank block sizes: (144, 164.113, 625)
135      (minimum, mean, maximum) ranks: (2, 4.8792, 7)
136