xref: /petsc/src/ksp/ksp/tutorials/output/ex82_1.out (revision fe972ab94a72e07fc8dae81dd2ded1f8f457b5bc)
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  shared subdomain KSP between SLEPc and PETSc? FALSE
15  coarse correction: DEFLATED
16  on process #0, value (+ threshold if available) for selecting deflation vectors: 1
17  grid and operator complexities: 1.005 16.
18  KSP Object: (pc_hpddm_levels_1_) 4 MPI processes
19    type: preonly
20    maximum iterations=10000, initial guess is zero
21    tolerances: relative=1e-05, absolute=1e-50, divergence=10000.
22    left preconditioning
23    using NONE norm type for convergence test
24  PC Object: (pc_hpddm_levels_1_) 4 MPI processes
25    type: shell
26      no name
27    linear system matrix = precond matrix:
28    Mat Object: 4 MPI processes
29      type: htool
30      rows=800, cols=800
31        symmetry: N
32        minimum cluster size: 10
33        maximum block size: 1000000
34        epsilon: 0.01
35        eta: 10.
36        minimum target depth: 0
37        minimum source depth: 0
38        compressor: sympartialACA
39        clustering: PCARegular
40        compression ratio: 1.08851
41        space saving: 0.0813156
42        (minimum, mean, maximum) dense block sizes: (144, 288.562, 2500)
43        (minimum, mean, maximum) low rank block sizes: (144, 164.113, 625)
44        (minimum, mean, maximum) ranks: (2, 4.8792, 7)
45  PC Object: (pc_hpddm_levels_1_) 4 MPI processes
46    type: asm
47      total subdomain blocks = 4, user-defined overlap
48      restriction/interpolation type - RESTRICT
49      Local solver information for first block is in the following KSP and PC objects on rank 0:
50      Use -pc_hpddm_levels_1_ksp_view ::ascii_info_detail to display information for all blocks
51    KSP Object: (pc_hpddm_levels_1_sub_) 1 MPI process
52      type: preonly
53      maximum iterations=10000, initial guess is zero
54      tolerances: relative=1e-05, absolute=1e-50, divergence=10000.
55      left preconditioning
56      using NONE norm type for convergence test
57    PC Object: (pc_hpddm_levels_1_sub_) 1 MPI process
58      type: lu
59        out-of-place factorization
60        tolerance for zero pivot 2.22045e-14
61        matrix ordering: external
62        factor fill ratio given 0., needed 0.
63          Factored matrix follows:
64            Mat Object: (pc_hpddm_levels_1_sub_) 1 MPI process
65              type: seqdense
66              rows=202, cols=202
67              package used to perform factorization: petsc
68              total: nonzeros=40804, allocated nonzeros=40804
69      linear system matrix = precond matrix:
70      Mat Object: (pc_hpddm_levels_1_sub_) 1 MPI process
71        type: seqdense
72        rows=202, cols=202
73        total: nonzeros=40804, allocated nonzeros=40804
74        total number of mallocs used during MatSetValues calls=0
75    linear system matrix = precond matrix:
76    Mat Object: 4 MPI processes
77      type: htool
78      rows=800, cols=800
79        symmetry: N
80        minimum cluster size: 10
81        maximum block size: 1000000
82        epsilon: 0.01
83        eta: 10.
84        minimum target depth: 0
85        minimum source depth: 0
86        compressor: sympartialACA
87        clustering: PCARegular
88        compression ratio: 1.08851
89        space saving: 0.0813156
90        (minimum, mean, maximum) dense block sizes: (144, 288.562, 2500)
91        (minimum, mean, maximum) low rank block sizes: (144, 164.113, 625)
92        (minimum, mean, maximum) ranks: (2, 4.8792, 7)
93    KSP Object: (pc_hpddm_coarse_) 1 MPI process
94      type: gmres
95        restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
96        happy breakdown tolerance 1e-30
97      maximum iterations=10000, initial guess is zero
98      tolerances: relative=1e-05, absolute=1e-50, divergence=10000.
99      left preconditioning
100      using PRECONDITIONED norm type for convergence test
101    PC Object: (pc_hpddm_coarse_) 1 MPI process
102      type: lu
103        out-of-place factorization
104        tolerance for zero pivot 2.22045e-14
105        matrix ordering: external
106        factor fill ratio given 0., needed 0.
107          Factored matrix follows:
108            Mat Object: (pc_hpddm_coarse_) 1 MPI process
109              type: seqdense
110              rows=4, cols=4
111              package used to perform factorization: petsc
112              total: nonzeros=16, allocated nonzeros=16
113      linear system matrix = precond matrix:
114      Mat Object: (pc_hpddm_coarse_) 1 MPI process
115        type: seqdense
116        rows=4, cols=4
117        total: nonzeros=16, allocated nonzeros=16
118        total number of mallocs used during MatSetValues calls=0
119  linear system matrix = precond matrix:
120  Mat Object: 4 MPI processes
121    type: htool
122    rows=800, cols=800
123      symmetry: N
124      minimum cluster size: 10
125      maximum block size: 1000000
126      epsilon: 0.01
127      eta: 10.
128      minimum target depth: 0
129      minimum source depth: 0
130      compressor: sympartialACA
131      clustering: PCARegular
132      compression ratio: 1.08851
133      space saving: 0.0813156
134      (minimum, mean, maximum) dense block sizes: (144, 288.562, 2500)
135      (minimum, mean, maximum) low rank block sizes: (144, 164.113, 625)
136      (minimum, mean, maximum) ranks: (2, 4.8792, 7)
137