xref: /petsc/src/ts/tutorials/advection-diffusion-reaction/output/ex2_1.out (revision 70646cd191a02c3aba559ba717dac5da7a8a1e20)
1TS Object: 1 MPI process
2  type: rosw
3    Rosenbrock-W ra34pw2
4    Abscissa of A       =  0.000000  0.871733  0.731580  1.000000
5    Abscissa of A+Gamma =  0.435867  0.871733  0.731580  1.000000
6  initial time step=1.
7  maximum time=20000.
8  maximum number of step rejections=100
9  total number of I function evaluations=504
10  total number of I Jacobian evaluations=126
11  total number of nonlinear solver iterations=504
12  total number of linear solver iterations=504
13  total number of linear solve failures=0
14  total number of rejected steps=10
15  using relative error tolerance of 0.0001,   using absolute error tolerance of 0.0001
16  TSAdapt Object: 1 MPI process
17    type: basic
18    safety factor 0.9
19    extra safety factor after step rejection 0.5
20    clip fastest increase 10.
21    clip fastest decrease 0.1
22    maximum allowed timestep 1e+20
23    minimum allowed timestep 1e-20
24    maximum solution absolute value to be ignored -1.
25  SNES Object: 1 MPI process
26    type: ksponly
27    maximum iterations=50, maximum function evaluations=10000
28    tolerances: relative=1e-08, absolute=1e-50, solution=1e-08
29    total number of linear solver iterations=1
30    total number of function evaluations=1
31    norm schedule ALWAYS
32    KSP Object: 1 MPI process
33      type: gmres
34        restart=30, using classical (unmodified) Gram-Schmidt orthogonalization with no iterative refinement
35        happy breakdown tolerance=1e-30
36      maximum iterations=10000, initial guess is zero
37      tolerances: relative=1e-05, absolute=1e-50, divergence=10000.
38      left preconditioning
39      using PRECONDITIONED norm type for convergence test
40    PC Object: 1 MPI process
41      type: ilu
42        out-of-place factorization
43        0 levels of fill
44        tolerance for zero pivot 2.22045e-14
45        matrix ordering: natural
46        factor fill ratio given 1., needed 1.
47          Factored matrix:
48            Mat Object: 1 MPI process
49              type: seqaij
50              rows=4, cols=4
51              package used to perform factorization: petsc
52              total: nonzeros=16, allocated nonzeros=16
53                using I-node routines: found 1 nodes, limit used is 5
54      linear system matrix, which is also used to construct the preconditioner:
55      Mat Object: 1 MPI process
56        type: seqaij
57        rows=4, cols=4
58        total: nonzeros=16, allocated nonzeros=16
59        total number of mallocs used during MatSetValues calls=0
60          using I-node routines: found 1 nodes, limit used is 5
61