1 0 SNES Function norm 14.5309 2 0 KSP Residual norm 17.9962 3 1 KSP Residual norm 0.718899 4 2 KSP Residual norm 0.074823 5 3 KSP Residual norm 0.00270797 6 4 KSP Residual norm 0.000198576 7 5 KSP Residual norm 2.29871e-05 8 6 KSP Residual norm 9.70025e-07 9 7 KSP Residual norm 3.21553e-08 10 8 KSP Residual norm 2.7741e-09 11 1 SNES Function norm 5.38576e-09 12SNES Object: 5 MPI processes 13 type: newtonls 14 maximum iterations=50, maximum function evaluations=10000 15 tolerances: relative=1e-08, absolute=1e-50, solution=1e-08 16 total number of linear solver iterations=8 17 total number of function evaluations=2 18 norm schedule ALWAYS 19 SNESLineSearch Object: 5 MPI processes 20 type: bt 21 interpolation: cubic 22 alpha=1.000000e-04 23 maxstep=1.000000e+08, minlambda=1.000000e-12 24 tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08 25 maximum iterations=40 26 KSP Object: 5 MPI processes 27 type: gmres 28 restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement 29 happy breakdown tolerance 1e-30 30 maximum iterations=10000, initial guess is zero 31 tolerances: relative=1e-09, absolute=1e-50, divergence=10000. 32 left preconditioning 33 using PRECONDITIONED norm type for convergence test 34 PC Object: 5 MPI processes 35 type: bddc 36 Use verbose output: 0 37 Use user-defined CSR: 0 38 Use local mat graph: 1 39 Connectivity graph topological dimension: 2 40 Corner selection: 1 (selected 1) 41 Use vertices: 1 (vertex size 1) 42 Use edges: 0 43 Use faces: 0 44 Use true near null space: 0 45 Use QR for single constraints on cc: 0 46 Use change of basis on local edge nodes: 0 47 Use change of basis on local face nodes: 0 48 User defined change of basis matrix: 0 49 Has change of basis matrix: 0 50 Eliminate dirichlet boundary dofs: 0 51 Switch on static condensation ops around the interface preconditioner: 0 52 Use exact dirichlet trick: 0 53 Interface extension: DIRICHLET 54 Multilevel max levels: 0 55 Multilevel coarsening ratio: 8 56 Use estimated eigs for coarse problem: 0 57 Use deluxe scaling: 0 58 Use deluxe zerorows: 0 59 Use deluxe singlemat: 0 60 Rebuild interface graph for Schur principal minors: 0 61 Number of dofs' layers for the computation of principal minors: -1 62 Use user CSR graph to compute successive layers: 0 63 Adaptive constraint selection threshold (active 0, userdefined 0): 0. 64 Min constraints / connected component: 0 65 Max constraints / connected component: 0 66 Invert exact Schur complement for adaptive selection: 0 67 Symmetric computation of primal basis functions: 1 68 Num. Procs. to map coarse adjacency list: 0 69 Coarse eqs per proc (significant at the coarsest level): 1 70 Detect disconnected: 0 (filter 0) 71 Benign subspace trick: 0 (change explicit 0) 72 Benign subspace trick is active: 0 73 Algebraic computation of no-net-flux: 0 74 ********************************** STATISTICS AT LEVEL 0 ********************************** 75 Global dofs sizes: all 529 interface 67 coarse 17 76 Coarsening ratios: all/coarse 31 interface/coarse 3 77 Active processes : 5 78 Total subdomains : 5 79 Dofs type : MIN MAX MEAN 80 Interior dofs : 49 105 92 81 Interface dofs : 15 39 27 82 Primal dofs : 5 10 7 83 Local dofs : 64 144 120 84 Local subs : 1 1 85 --- Interior solver (rank 0) 86 KSP Object: (pc_bddc_dirichlet_) 1 MPI process 87 type: preonly 88 maximum iterations=10000, initial guess is zero 89 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 90 left preconditioning 91 using NONE norm type for convergence test 92 PC Object: (pc_bddc_dirichlet_) 1 MPI process 93 type: lu 94 out-of-place factorization 95 tolerance for zero pivot 2.22045e-14 96 matrix ordering: nd 97 factor fill ratio given 5., needed 1.57233 98 Factored matrix follows: 99 Mat Object: (pc_bddc_dirichlet_) 1 MPI process 100 type: seqaij 101 rows=105, cols=105 102 package used to perform factorization: petsc 103 total: nonzeros=1989, allocated nonzeros=1989 104 not using I-node routines 105 linear system matrix = precond matrix: 106 Mat Object: (pc_bddc_dirichlet_) 1 MPI process 107 type: seqaij 108 rows=105, cols=105 109 total: nonzeros=1265, allocated nonzeros=1265 110 total number of mallocs used during MatSetValues calls=0 111 not using I-node routines 112 --- Correction solver (rank 0) 113 KSP Object: (pc_bddc_neumann_) 1 MPI process 114 type: preonly 115 maximum iterations=10000, initial guess is zero 116 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 117 left preconditioning 118 using NONE norm type for convergence test 119 PC Object: (pc_bddc_neumann_) 1 MPI process 120 type: lu 121 out-of-place factorization 122 tolerance for zero pivot 2.22045e-14 123 matrix ordering: nd 124 factor fill ratio given 5., needed 1.55203 125 Factored matrix follows: 126 Mat Object: (pc_bddc_neumann_) 1 MPI process 127 type: seqaij 128 rows=122, cols=122 129 package used to perform factorization: petsc 130 total: nonzeros=2446, allocated nonzeros=2446 131 not using I-node routines 132 linear system matrix = precond matrix: 133 Mat Object: (pc_bddc_neumann_) 1 MPI process 134 type: seqaij 135 rows=122, cols=122 136 total: nonzeros=1576, allocated nonzeros=1576 137 total number of mallocs used during MatSetValues calls=0 138 not using I-node routines 139 --- Coarse solver 140 KSP Object: (pc_bddc_coarse_) 5 MPI processes 141 type: preonly 142 maximum iterations=1, initial guess is zero 143 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 144 left preconditioning 145 using NONE norm type for convergence test 146 PC Object: (pc_bddc_coarse_) 5 MPI processes 147 type: redundant 148 First (color=0) of 5 PCs follows 149 linear system matrix = precond matrix: 150 Mat Object: (pc_bddc_coarse_) 5 MPI processes 151 type: mpiaij 152 rows=17, cols=17 153 total: nonzeros=221, allocated nonzeros=242 154 total number of mallocs used during MatSetValues calls=0 155 using I-node (on process 0) routines: found 1 nodes, limit used is 5 156 KSP Object: (pc_bddc_coarse_redundant_) 1 MPI process 157 type: preonly 158 maximum iterations=10000, initial guess is zero 159 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 160 left preconditioning 161 using NONE norm type for convergence test 162 PC Object: (pc_bddc_coarse_redundant_) 1 MPI process 163 type: lu 164 out-of-place factorization 165 tolerance for zero pivot 2.22045e-14 166 matrix ordering: nd 167 factor fill ratio given 5., needed 1.1629 168 Factored matrix follows: 169 Mat Object: (pc_bddc_coarse_redundant_) 1 MPI process 170 type: seqaij 171 rows=17, cols=17 172 package used to perform factorization: petsc 173 total: nonzeros=257, allocated nonzeros=257 174 using I-node routines: found 5 nodes, limit used is 5 175 linear system matrix = precond matrix: 176 Mat Object: 1 MPI process 177 type: seqaij 178 rows=17, cols=17 179 total: nonzeros=221, allocated nonzeros=221 180 total number of mallocs used during MatSetValues calls=0 181 using I-node routines: found 11 nodes, limit used is 5 182 linear system matrix = precond matrix: 183 Mat Object: 5 MPI processes 184 type: is 185 rows=529, cols=529 186 total: nonzeros=7832, allocated nonzeros=8924 187 total number of mallocs used during MatSetValues calls=0 188