DM Object: 1 MPI process type: plex Mesh in 2 dimensions: Number of 0-cells per rank: 12 Number of 1-cells per rank: 21 Number of 2-cells per rank: 15 (6) Labels: ghost: 0 strata of sizes () vtk: 1 strata of sizes (9) marker: 1 strata of sizes (12) Face Sets: 2 strata of sizes (3, 3) depth: 3 strata of sizes (12, 21, 15) 0 time 0 |x| ( 0, 1) |x|_1 ( 0, 1) Error [ 0, 0] int 0 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 1 time 0.3333 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 1.00144e-06] int 2.22383e-07 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 2 time 0.6667 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 1.99896e-06] int 4.43832e-07 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 3 time 1 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 2.99834e-06] int 6.66139e-07 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 4 time 1.333 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 4.00011e-06] int 8.88755e-07 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 5 time 1.667 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 5.00097e-06] int 1.11117e-06 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 6 time 2 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 6.0009e-06] int 1.33338e-06 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 7 time 2.333 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 6.99986e-06] int 1.55537e-06 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 8 time 2.667 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 8.00267e-06] int 1.77768e-06 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 9 time 3 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 8.99957e-06] int 1.99975e-06 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 10 time 3.333 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 1.00004e-05] int 2.22217e-06 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 11 time 3.667 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 1.10004e-05] int 2.44438e-06 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 12 time 4 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 1.19993e-05] int 2.66637e-06 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 13 time 4.333 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 1.29973e-05] int 2.88814e-06 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 14 time 4.667 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 1.39991e-05] int 3.11076e-06 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 15 time 5 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 1.49999e-05] int 3.33318e-06 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 1 16 time 5.333 |x| ( 1, 1) |x|_1 ( 9, 1) Error [ 0, 1.59999e-05] int 3.55539e-06 TS Object: 1 MPI process type: mimex maximum steps=20 maximum time=5. total number of nonlinear solver iterations=0 total number of nonlinear solve failures=0 total number of linear solver iterations=0 total number of rejected steps=0 using relative error tolerance of 0.0001, using absolute error tolerance of 0.0001 Version = 1 SNES Object: 1 MPI process type: newtonls maximum iterations=50, maximum function evaluations=10000 tolerances: relative=1e-07, absolute=1e-50, solution=1e-08 total number of linear solver iterations=1 total number of function evaluations=21 norm schedule ALWAYS SNESLineSearch Object: 1 MPI process type: bt interpolation: cubic alpha=1.000000e-04 maxlambda=1.000000e+00, minlambda=1.000000e-12 tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08 maximum iterations=40 KSP Object: 1 MPI process type: gmres restart=30, using classical (unmodified) Gram-Schmidt orthogonalization with no iterative refinement happy breakdown tolerance=1e-30 maximum iterations=10000, initial guess is zero tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using PRECONDITIONED norm type for convergence test PC Object: 1 MPI process type: lu out-of-place factorization tolerance for zero pivot 2.22045e-14 matrix ordering: nd factor fill ratio given 5., needed 1.45614 Factored matrix: Mat Object: 1 MPI process type: seqaij rows=27, cols=27 package used to perform factorization: petsc total: nonzeros=249, allocated nonzeros=249 total number of mallocs used during MatSetValues calls=0 using I-node routines: found 18 nodes, limit used is 5 linear system matrix, which is also used to construct the preconditioner: Mat Object: 1 MPI process type: seqaij rows=27, cols=27 total: nonzeros=171, allocated nonzeros=171 total number of mallocs used during MatSetValues calls=0 using I-node routines: found 18 nodes, limit used is 5 CONVERGED_TIME at time 5.33333 after 16 steps