10 TS dt 8.33333e-06 time 0. 21 TS dt 8.33333e-05 time 8.33333e-06 32 TS dt 0.000833333 time 9.16667e-05 43 TS dt 0.00833333 time 0.000925 54 TS dt 0.0132237 time 0.00925833 65 TS dt 0.0132566 time 0.022482 76 TS dt 0.0132919 time 0.0357387 87 TS dt 0.0133226 time 0.0490305 98 TS dt 0.0133482 time 0.0623531 109 TS dt 0.0133897 time 0.0757014 1110 TS dt 0.0134319 time 0.0890911 1211 TS dt 0.0134682 time 0.102523 1312 TS dt 0.0134977 time 0.115991 1413 TS dt 0.0135237 time 0.129489 1514 TS dt 0.00490871 time 0.133782 1615 TS dt 0.010074 time 0.138691 1716 TS dt 0.0135707 time 0.148765 1817 TS dt 0.013607 time 0.162336 1918 TS dt 0.00443555 time 0.165994 2019 TS dt 0.00853853 time 0.17043 2120 TS dt 0.0135363 time 0.178968 2221 TS dt 0.0136954 time 0.192504 2322 TS dt 0.00535735 time 0.197245 2423 TS dt 0.0108939 time 0.202602 2524 TS dt 0.0137448 time 0.213496 2625 TS dt 0.0137631 time 0.227241 2726 TS dt 0.00362895 time 0.229783 2827 TS dt 0.00578029 time 0.233412 2928 TS dt 0.0111986 time 0.239193 3029 TS dt 0.013832 time 0.250391 3130 TS dt 0.013781 time 0.264223 3231 TS dt 0.00305704 time 0.26618 3332 TS dt 0.0043779 time 0.269237 3433 TS dt 0.0076831 time 0.273615 3534 TS dt 0.0135611 time 0.281298 3635 TS dt 0.0139794 time 0.29486 3736 TS dt 0.00580298 time 0.299731 3837 TS dt 0.0115935 time 0.305534 39TS Object: 1 MPI process 40 type: arkimex 41 ARK IMEX 3 42 Stiff abscissa ct = 0.000000 0.871733 0.600000 1.000000 43 Fully implicit: no 44 Stiffly accurate: yes 45 Explicit first stage: yes 46 FSAL property: yes 47 Nonstiff abscissa c = 0.000000 0.871733 0.600000 1.000000 48 initial time step=8.33333e-06 49 maximum steps=1000 50 maximum time=0.3 51 maximum number of step rejections=10 52 maximum number of SNES failures allowed=1 53 using relative error tolerance of 0.0001, using absolute error tolerance of 0.0001 54 TSAdapt Object: 1 MPI process 55 type: basic 56 safety factor 0.9 57 extra safety factor after step rejection 0.5 58 clip fastest increase 10. 59 clip fastest decrease 0.1 60 maximum allowed timestep 1e+20 61 minimum allowed timestep 1e-20 62 maximum solution absolute value to be ignored -1. 63 SNES Object: 1 MPI process 64 type: newtonls 65 maximum iterations=50, maximum function evaluations=10000 66 tolerances: relative=1e-08, absolute=1e-50, solution=1e-08 67 norm schedule ALWAYS 68 SNESLineSearch Object: 1 MPI process 69 type: bt 70 interpolation: cubic 71 alpha=1.000000e-04 72 maxlambda=1.000000e+00, minlambda=1.000000e-12 73 tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08 74 maximum iterations=40 75 KSP Object: 1 MPI process 76 type: gmres 77 restart=30, using classical (unmodified) Gram-Schmidt orthogonalization with no iterative refinement 78 happy breakdown tolerance=1e-30 79 maximum iterations=10000, initial guess is zero 80 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 81 left preconditioning 82 using PRECONDITIONED norm type for convergence test 83 PC Object: 1 MPI process 84 type: mg 85 type is MULTIPLICATIVE, levels=3 cycles=v 86 Cycles per PCApply=1 87 Not using Galerkin computed coarse grid matrices 88 Coarse grid solver -- level 0 ------------------------------- 89 KSP Object: (mg_coarse_) 1 MPI process 90 type: preonly 91 maximum iterations=10000, initial guess is zero 92 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 93 left preconditioning 94 not checking for convergence 95 PC Object: (mg_coarse_) 1 MPI process 96 type: lu 97 out-of-place factorization 98 tolerance for zero pivot 2.22045e-14 99 using diagonal shift on blocks to prevent zero pivot [INBLOCKS] 100 matrix ordering: nd 101 factor fill ratio given 5., needed 1.63333 102 Factored matrix: 103 Mat Object: (mg_coarse_) 1 MPI process 104 type: seqaij 105 rows=60, cols=60 106 package used to perform factorization: petsc 107 total: nonzeros=294, allocated nonzeros=294 108 not using I-node routines 109 linear system matrix, which is also used to construct the preconditioner: 110 Mat Object: 1 MPI process 111 type: seqaij 112 rows=60, cols=60 113 total: nonzeros=180, allocated nonzeros=180 114 not using I-node routines 115 Down solver (pre-smoother) on level 1 ------------------------------- 116 KSP Object: (mg_levels_1_) 1 MPI process 117 type: chebyshev 118 Chebyshev polynomial of first kind 119 eigenvalue targets used: min 0.1, max 1.1 120 eigenvalues estimated via gmres: min 1., max 1. 121 eigenvalues estimated using gmres with transform: [0. 0.1; 0. 1.1] 122 KSP Object: (mg_levels_1_esteig_) 1 MPI process 123 type: gmres 124 restart=30, using classical (unmodified) Gram-Schmidt orthogonalization with no iterative refinement 125 happy breakdown tolerance=1e-30 126 maximum iterations=10, initial guess is zero 127 tolerances: relative=1e-12, absolute=1e-50, divergence=10000. 128 left preconditioning 129 using PRECONDITIONED norm type for convergence test 130 estimating eigenvalues using a noisy random number generated right-hand side 131 maximum iterations=3, nonzero initial guess 132 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 133 left preconditioning 134 not checking for convergence 135 PC Object: (mg_levels_1_) 1 MPI process 136 type: sor 137 type = local_symmetric, iterations = 1, local iterations = 1, omega = 1. 138 linear system matrix, which is also used to construct the preconditioner: 139 Mat Object: 1 MPI process 140 type: seqaij 141 rows=120, cols=120 142 total: nonzeros=360, allocated nonzeros=360 143 not using I-node routines 144 Up solver (post-smoother) same as down solver (pre-smoother) 145 Down solver (pre-smoother) on level 2 ------------------------------- 146 KSP Object: (mg_levels_2_) 1 MPI process 147 type: chebyshev 148 Chebyshev polynomial of first kind 149 eigenvalue targets used: min 0.1, max 1.1 150 eigenvalues estimated via gmres: min 1., max 1. 151 eigenvalues estimated using gmres with transform: [0. 0.1; 0. 1.1] 152 KSP Object: (mg_levels_2_esteig_) 1 MPI process 153 type: gmres 154 restart=30, using classical (unmodified) Gram-Schmidt orthogonalization with no iterative refinement 155 happy breakdown tolerance=1e-30 156 maximum iterations=10, initial guess is zero 157 tolerances: relative=1e-12, absolute=1e-50, divergence=10000. 158 left preconditioning 159 using PRECONDITIONED norm type for convergence test 160 estimating eigenvalues using a noisy random number generated right-hand side 161 maximum iterations=3, nonzero initial guess 162 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 163 left preconditioning 164 not checking for convergence 165 PC Object: (mg_levels_2_) 1 MPI process 166 type: sor 167 type = local_symmetric, iterations = 1, local iterations = 1, omega = 1. 168 linear system matrix, which is also used to construct the preconditioner: 169 Mat Object: 1 MPI process 170 type: seqaij 171 rows=240, cols=240 172 total: nonzeros=720, allocated nonzeros=720 173 not using I-node routines 174 Up solver (post-smoother) same as down solver (pre-smoother) 175 linear system matrix, which is also used to construct the preconditioner: 176 Mat Object: 1 MPI process 177 type: seqaij 178 rows=240, cols=240 179 total: nonzeros=720, allocated nonzeros=720 180 not using I-node routines 181