1Failed to load initial guess, so use a vector of all zeros. 2Linear solve converged due to CONVERGED_RTOL_NORMAL_EQUATIONS iterations 9 3KSP Object: 4 MPI processes 4 type: lsqr 5 standard error not computed 6 using inexact matrix norm 7 maximum iterations=100, initial guess is zero 8 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 9 left preconditioning 10 using UNPRECONDITIONED norm type for convergence test 11PC Object: 4 MPI processes 12 type: hpddm 13 levels: 2 14 Neumann matrix attached? TRUE 15 coarse correction: BALANCED 16 on process #0, value (+ threshold if available) for selecting deflation vectors: 20 17 grid and operator complexities: 1.09512 1.01219 18 KSP Object: (pc_hpddm_levels_1_) 4 MPI processes 19 type: preonly 20 maximum iterations=10000, initial guess is zero 21 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 22 left preconditioning 23 using NONE norm type for convergence test 24 PC Object: (pc_hpddm_levels_1_) 4 MPI processes 25 type: shell 26 no name 27 linear system matrix followed by preconditioner matrix: 28 Mat Object: A 4 MPI processes 29 type: mpiaij 30 rows=4889, cols=841 31 total number of mallocs used during MatSetValues calls=0 32 using I-node (on process 0) routines: found 670 nodes, limit used is 5 33 Mat Object: 4 MPI processes 34 type: normalh 35 rows=841, cols=841 36 PC Object: (pc_hpddm_levels_1_) 4 MPI processes 37 type: asm 38 total subdomain blocks = 4, user-defined overlap 39 restriction/interpolation type - BASIC 40 Local solver information for first block is in the following KSP and PC objects on rank 0: 41 Use -pc_hpddm_levels_1_ksp_view ::ascii_info_detail to display information for all blocks 42 KSP Object: (pc_hpddm_levels_1_sub_) 1 MPI process 43 type: preonly 44 maximum iterations=10000, initial guess is zero 45 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 46 left preconditioning 47 using NONE norm type for convergence test 48 PC Object: (pc_hpddm_levels_1_sub_) 1 MPI process 49 type: cholesky 50 out-of-place factorization 51 tolerance for zero pivot 2.22045e-14 52 matrix ordering: nd 53 factor fill ratio given 5., needed 1.21054 54 Factored matrix follows: 55 Mat Object: (pc_hpddm_levels_1_sub_) 1 MPI process 56 type: seqsbaij 57 rows=718, cols=718 58 package used to perform factorization: petsc 59 block size is 1 60 linear system matrix = precond matrix: 61 Mat Object: (pc_hpddm_levels_1_sub_) 1 MPI process 62 type: seqaij 63 rows=718, cols=718 64 total number of mallocs used during MatSetValues calls=0 65 not using I-node routines 66 linear system matrix followed by preconditioner matrix: 67 Mat Object: A 4 MPI processes 68 type: mpiaij 69 rows=4889, cols=841 70 total number of mallocs used during MatSetValues calls=0 71 using I-node (on process 0) routines: found 670 nodes, limit used is 5 72 Mat Object: 4 MPI processes 73 type: normalh 74 rows=841, cols=841 75 KSP Object: (pc_hpddm_coarse_) 1 MPI process 76 type: preonly 77 maximum iterations=10000, initial guess is zero 78 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 79 left preconditioning 80 using NONE norm type for convergence test 81 PC Object: (pc_hpddm_coarse_) 1 MPI process 82 type: cholesky 83 out-of-place factorization 84 tolerance for zero pivot 2.22045e-14 85 matrix ordering: natural 86 factor fill ratio given 5., needed 1.1 87 Factored matrix follows: 88 Mat Object: (pc_hpddm_coarse_) 1 MPI process 89 type: seqsbaij 90 rows=80, cols=80, bs=20 91 package used to perform factorization: petsc 92 block size is 20 93 linear system matrix = precond matrix: 94 Mat Object: (pc_hpddm_coarse_) 1 MPI process 95 type: seqsbaij 96 rows=80, cols=80, bs=20 97 total number of mallocs used during MatSetValues calls=0 98 block size is 20 99 linear system matrix followed by preconditioner matrix: 100 Mat Object: A 4 MPI processes 101 type: mpiaij 102 rows=4889, cols=841 103 total number of mallocs used during MatSetValues calls=0 104 using I-node (on process 0) routines: found 670 nodes, limit used is 5 105 Mat Object: 4 MPI processes 106 type: normalh 107 rows=841, cols=841 108KSP type: lsqr 109Number of iterations = 9 110Residual norm 1.63035e-05 111