xref: /petsc/src/ts/tutorials/output/ex19_pi42.out (revision 4ad8454beace47809662cdae21ee081016eaa39a)
1[0.0]   0 TS 0.000000 (dt = 0.001000) X  0.000000e+00  0.000000e+00
2[0.1]   9 TS 0.109097 (dt = 0.033863) X -1.767090e+00 -2.302659e+00
3[0.2]  12 TS 0.216172 (dt = 0.037715) X -1.539539e+00 -2.248191e+00
4[0.3]  15 TS 0.328946 (dt = 0.036756) X -1.317536e+00 -2.191679e+00
5[0.4]  17 TS 0.401712 (dt = 0.035172) X -1.101300e+00 -2.132851e+00
6[0.5]  20 TS 0.504523 (dt = 0.032431) X -8.910767e-01 -2.071367e+00
7TS Object: 1 MPI process
8  type: bdf
9    Order=2
10  maximum time=0.5
11  total number of I function evaluations=114
12  total number of I Jacobian evaluations=93
13  total number of nonlinear solver iterations=93
14  total number of linear solver iterations=93
15  total number of nonlinear solve failures=0
16  total number of rejected steps=0
17  using relative error tolerance of 1e-06,   using absolute error tolerance of 1e-06
18  TSAdapt Object: 1 MPI process
19    type: dsp
20    safety factor 0.9
21    extra safety factor after step rejection 1.
22    clip fastest increase 2.
23    clip fastest decrease 0.1
24    maximum allowed timestep 1e+20
25    minimum allowed timestep 1e-20
26    maximum solution absolute value to be ignored -1.
27    filter parameters kBeta=[0.6,-0.2,0.] Alpha=[0.,0.]
28  SNES Object: 1 MPI process
29    type: newtonls
30    maximum iterations=50, maximum function evaluations=10000
31    tolerances: relative=1e-08, absolute=1e-50, solution=1e-08
32    total number of linear solver iterations=6
33    total number of function evaluations=7
34    norm schedule ALWAYS
35    SNESLineSearch Object: 1 MPI process
36      type: bt
37        interpolation: cubic
38        alpha=1.000000e-04
39      maxstep=1.000000e+08, minlambda=1.000000e-12
40      tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08
41      maximum iterations=40
42    KSP Object: 1 MPI process
43      type: gmres
44        restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement
45        happy breakdown tolerance 1e-30
46      maximum iterations=10000, initial guess is zero
47      tolerances: relative=1e-05, absolute=1e-50, divergence=10000.
48      left preconditioning
49      using PRECONDITIONED norm type for convergence test
50    PC Object: 1 MPI process
51      type: ilu
52        out-of-place factorization
53        0 levels of fill
54        tolerance for zero pivot 2.22045e-14
55        matrix ordering: natural
56        factor fill ratio given 1., needed 1.
57          Factored matrix follows:
58            Mat Object: 1 MPI process
59              type: seqaij
60              rows=2, cols=2
61              package used to perform factorization: petsc
62              total: nonzeros=4, allocated nonzeros=4
63                using I-node routines: found 1 nodes, limit used is 5
64      linear system matrix = precond matrix:
65      Mat Object: 1 MPI process
66        type: seqaij
67        rows=2, cols=2
68        total: nonzeros=4, allocated nonzeros=4
69        total number of mallocs used during MatSetValues calls=0
70          using I-node routines: found 1 nodes, limit used is 5
71steps  20, ftime 0.504523
72Vec Object: 1 MPI process
73  type: seq
74-0.881713
75-2.06852
76