1 0 KSP Residual norm 811.998 2 1 KSP Residual norm 197.037 3 2 KSP Residual norm 76.0612 4 3 KSP Residual norm 28.3601 5 4 KSP Residual norm 7.64702 6 5 KSP Residual norm 4.00353 7 6 KSP Residual norm 1.74934 8 7 KSP Residual norm 0.751483 9 8 KSP Residual norm 0.28333 10 9 KSP Residual norm 0.0874762 11 10 KSP Residual norm 0.0353676 12 11 KSP Residual norm 0.017824 13 12 KSP Residual norm 0.00703599 14 Linear solve converged due to CONVERGED_RTOL iterations 12 15KSP Object: 8 MPI processes 16 type: cg 17 maximum iterations=10000, initial guess is zero 18 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 19 left preconditioning 20 using PRECONDITIONED norm type for convergence test 21PC Object: 8 MPI processes 22 type: gamg 23 type is MULTIPLICATIVE, levels=2 cycles=v 24 Cycles per PCApply=1 25 Using externally compute Galerkin coarse grid matrices 26 GAMG specific options 27 Threshold for dropping small values in graph on each level = -0.01 -0.01 28 Threshold scaling factor for each level not specified = 1. 29 Using parallel coarse grid solver (all coarse grid equations not put on one process) 30 AGG specific options 31 Number of levels of aggressive coarsening 1 32 Square graph aggressive coarsening 33 MatCoarsen Object: (pc_gamg_) 8 MPI processes 34 type: mis 35 Number smoothing steps to construct prolongation 1 36 Complexity: grid = 1.054 operator = 1.07125 37 Per-level complexity: op = operator, int = interpolation 38 #equations | #active PEs | avg nnz/row op | avg nnz/row int 39 162 4 87 0 40 3000 8 66 19 41 Coarse grid solver -- level 0 ------------------------------- 42 KSP Object: (mg_coarse_) 8 MPI processes 43 type: cg 44 maximum iterations=10000, initial guess is zero 45 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 46 left preconditioning 47 using PRECONDITIONED norm type for convergence test 48 PC Object: (mg_coarse_) 8 MPI processes 49 type: jacobi 50 type DIAGONAL 51 linear system matrix, which is also used to construct the preconditioner: 52 Mat Object: 8 MPI processes 53 type: mpiaij 54 rows=162, cols=162, bs=6 55 total: nonzeros=14076, allocated nonzeros=14076 56 total number of mallocs used during MatSetValues calls=0 57 using nonscalable MatPtAP() implementation 58 using I-node (on process 0) routines: found 4 nodes, limit used is 5 59 Down solver (pre-smoother) on level 1 ------------------------------- 60 KSP Object: (mg_levels_1_) 8 MPI processes 61 type: chebyshev 62 Chebyshev polynomial of first kind 63 eigenvalue targets used: min 0.637067, max 3.3446 64 eigenvalues provided (min 0.0597913, max 3.18533) with transform: [0. 0.2; 0. 1.05] 65 maximum iterations=2, nonzero initial guess 66 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 67 left preconditioning 68 not checking for convergence 69 PC Object: (mg_levels_1_) 8 MPI processes 70 type: jacobi 71 type DIAGONAL 72 linear system matrix, which is also used to construct the preconditioner: 73 Mat Object: 8 MPI processes 74 type: mpiaij 75 rows=3000, cols=3000, bs=3 76 total: nonzeros=197568, allocated nonzeros=243000 77 total number of mallocs used during MatSetValues calls=0 78 has attached near null space 79 using I-node (on process 0) routines: found 125 nodes, limit used is 5 80 Up solver (post-smoother) same as down solver (pre-smoother) 81 linear system matrix, which is also used to construct the preconditioner: 82 Mat Object: 8 MPI processes 83 type: mpiaij 84 rows=3000, cols=3000, bs=3 85 total: nonzeros=197568, allocated nonzeros=243000 86 total number of mallocs used during MatSetValues calls=0 87 has attached near null space 88 using I-node (on process 0) routines: found 125 nodes, limit used is 5 89 0 KSP Residual norm 0.00811969 90 1 KSP Residual norm 0.00196934 91 2 KSP Residual norm 0.000759615 92 3 KSP Residual norm 0.000282977 93 4 KSP Residual norm 7.65127e-05 94 5 KSP Residual norm 4.02809e-05 95 6 KSP Residual norm 1.76022e-05 96 7 KSP Residual norm 7.54699e-06 97 8 KSP Residual norm 2.84038e-06 98 9 KSP Residual norm 8.7449e-07 99 10 KSP Residual norm 3.53116e-07 100 11 KSP Residual norm 1.7785e-07 101 12 KSP Residual norm 7.0347e-08 102 Linear solve converged due to CONVERGED_RTOL iterations 12 103KSP Object: 8 MPI processes 104 type: cg 105 maximum iterations=10000, initial guess is zero 106 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 107 left preconditioning 108 using PRECONDITIONED norm type for convergence test 109PC Object: 8 MPI processes 110 type: gamg 111 type is MULTIPLICATIVE, levels=2 cycles=v 112 Cycles per PCApply=1 113 Using externally compute Galerkin coarse grid matrices 114 GAMG specific options 115 Threshold for dropping small values in graph on each level = -0.01 -0.01 116 Threshold scaling factor for each level not specified = 1. 117 Using parallel coarse grid solver (all coarse grid equations not put on one process) 118 AGG specific options 119 Number of levels of aggressive coarsening 1 120 Square graph aggressive coarsening 121 MatCoarsen Object: (pc_gamg_) 8 MPI processes 122 type: mis 123 Number smoothing steps to construct prolongation 1 124 Complexity: grid = 1.054 operator = 1.07125 125 Per-level complexity: op = operator, int = interpolation 126 #equations | #active PEs | avg nnz/row op | avg nnz/row int 127 162 4 87 0 128 3000 8 66 19 129 Coarse grid solver -- level 0 ------------------------------- 130 KSP Object: (mg_coarse_) 8 MPI processes 131 type: cg 132 maximum iterations=10000, initial guess is zero 133 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 134 left preconditioning 135 using PRECONDITIONED norm type for convergence test 136 PC Object: (mg_coarse_) 8 MPI processes 137 type: jacobi 138 type DIAGONAL 139 linear system matrix, which is also used to construct the preconditioner: 140 Mat Object: 8 MPI processes 141 type: mpiaij 142 rows=162, cols=162, bs=6 143 total: nonzeros=14076, allocated nonzeros=14076 144 total number of mallocs used during MatSetValues calls=0 145 using nonscalable MatPtAP() implementation 146 using I-node (on process 0) routines: found 4 nodes, limit used is 5 147 Down solver (pre-smoother) on level 1 ------------------------------- 148 KSP Object: (mg_levels_1_) 8 MPI processes 149 type: chebyshev 150 Chebyshev polynomial of first kind 151 eigenvalue targets used: min 0.637376, max 3.34622 152 eigenvalues estimated via gmres: min 0.0806313, max 3.18688 153 eigenvalues estimated using gmres with transform: [0. 0.2; 0. 1.05] 154 KSP Object: (mg_levels_1_esteig_) 8 MPI processes 155 type: gmres 156 restart=30, using classical (unmodified) Gram-Schmidt orthogonalization with no iterative refinement 157 happy breakdown tolerance=1e-30 158 maximum iterations=10, initial guess is zero 159 tolerances: relative=1e-12, absolute=1e-50, divergence=10000. 160 left preconditioning 161 using PRECONDITIONED norm type for convergence test 162 estimating eigenvalues using a noisy random number generated right-hand side 163 maximum iterations=2, nonzero initial guess 164 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 165 left preconditioning 166 not checking for convergence 167 PC Object: (mg_levels_1_) 8 MPI processes 168 type: jacobi 169 type DIAGONAL 170 linear system matrix, which is also used to construct the preconditioner: 171 Mat Object: 8 MPI processes 172 type: mpiaij 173 rows=3000, cols=3000, bs=3 174 total: nonzeros=197568, allocated nonzeros=243000 175 total number of mallocs used during MatSetValues calls=0 176 has attached near null space 177 using I-node (on process 0) routines: found 125 nodes, limit used is 5 178 Up solver (post-smoother) same as down solver (pre-smoother) 179 linear system matrix, which is also used to construct the preconditioner: 180 Mat Object: 8 MPI processes 181 type: mpiaij 182 rows=3000, cols=3000, bs=3 183 total: nonzeros=197568, allocated nonzeros=243000 184 total number of mallocs used during MatSetValues calls=0 185 has attached near null space 186 using I-node (on process 0) routines: found 125 nodes, limit used is 5 187 0 KSP Residual norm 0.00811969 188 1 KSP Residual norm 0.00196934 189 2 KSP Residual norm 0.000759615 190 3 KSP Residual norm 0.000282977 191 4 KSP Residual norm 7.65127e-05 192 5 KSP Residual norm 4.02809e-05 193 6 KSP Residual norm 1.76022e-05 194 7 KSP Residual norm 7.54699e-06 195 8 KSP Residual norm 2.84038e-06 196 9 KSP Residual norm 8.7449e-07 197 10 KSP Residual norm 3.53116e-07 198 11 KSP Residual norm 1.7785e-07 199 12 KSP Residual norm 7.0347e-08 200 Linear solve converged due to CONVERGED_RTOL iterations 12 201KSP Object: 8 MPI processes 202 type: cg 203 maximum iterations=10000, initial guess is zero 204 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 205 left preconditioning 206 using PRECONDITIONED norm type for convergence test 207PC Object: 8 MPI processes 208 type: gamg 209 type is MULTIPLICATIVE, levels=2 cycles=v 210 Cycles per PCApply=1 211 Using externally compute Galerkin coarse grid matrices 212 GAMG specific options 213 Threshold for dropping small values in graph on each level = -0.01 -0.01 214 Threshold scaling factor for each level not specified = 1. 215 Using parallel coarse grid solver (all coarse grid equations not put on one process) 216 AGG specific options 217 Number of levels of aggressive coarsening 1 218 Square graph aggressive coarsening 219 MatCoarsen Object: (pc_gamg_) 8 MPI processes 220 type: mis 221 Number smoothing steps to construct prolongation 1 222 Complexity: grid = 1.054 operator = 1.07125 223 Per-level complexity: op = operator, int = interpolation 224 #equations | #active PEs | avg nnz/row op | avg nnz/row int 225 162 4 87 0 226 3000 8 66 19 227 Coarse grid solver -- level 0 ------------------------------- 228 KSP Object: (mg_coarse_) 8 MPI processes 229 type: cg 230 maximum iterations=10000, initial guess is zero 231 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 232 left preconditioning 233 using PRECONDITIONED norm type for convergence test 234 PC Object: (mg_coarse_) 8 MPI processes 235 type: jacobi 236 type DIAGONAL 237 linear system matrix, which is also used to construct the preconditioner: 238 Mat Object: 8 MPI processes 239 type: mpiaij 240 rows=162, cols=162, bs=6 241 total: nonzeros=14076, allocated nonzeros=14076 242 total number of mallocs used during MatSetValues calls=0 243 using nonscalable MatPtAP() implementation 244 using I-node (on process 0) routines: found 4 nodes, limit used is 5 245 Down solver (pre-smoother) on level 1 ------------------------------- 246 KSP Object: (mg_levels_1_) 8 MPI processes 247 type: chebyshev 248 Chebyshev polynomial of first kind 249 eigenvalue targets used: min 0.637376, max 3.34622 250 eigenvalues estimated via gmres: min 0.0806313, max 3.18688 251 eigenvalues estimated using gmres with transform: [0. 0.2; 0. 1.05] 252 KSP Object: (mg_levels_1_esteig_) 8 MPI processes 253 type: gmres 254 restart=30, using classical (unmodified) Gram-Schmidt orthogonalization with no iterative refinement 255 happy breakdown tolerance=1e-30 256 maximum iterations=10, initial guess is zero 257 tolerances: relative=1e-12, absolute=1e-50, divergence=10000. 258 left preconditioning 259 using PRECONDITIONED norm type for convergence test 260 estimating eigenvalues using a noisy random number generated right-hand side 261 maximum iterations=2, nonzero initial guess 262 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 263 left preconditioning 264 not checking for convergence 265 PC Object: (mg_levels_1_) 8 MPI processes 266 type: jacobi 267 type DIAGONAL 268 linear system matrix, which is also used to construct the preconditioner: 269 Mat Object: 8 MPI processes 270 type: mpiaij 271 rows=3000, cols=3000, bs=3 272 total: nonzeros=197568, allocated nonzeros=243000 273 total number of mallocs used during MatSetValues calls=0 274 has attached near null space 275 using I-node (on process 0) routines: found 125 nodes, limit used is 5 276 Up solver (post-smoother) same as down solver (pre-smoother) 277 linear system matrix, which is also used to construct the preconditioner: 278 Mat Object: 8 MPI processes 279 type: mpiaij 280 rows=3000, cols=3000, bs=3 281 total: nonzeros=197568, allocated nonzeros=243000 282 total number of mallocs used during MatSetValues calls=0 283 has attached near null space 284 using I-node (on process 0) routines: found 125 nodes, limit used is 5 285[0]main |b-Ax|/|b|=2.425235e-04, |b|=5.391826e+00, emax=9.946388e-01 286