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 not checking for convergence 24 PC Object: (pc_hpddm_levels_1_) 4 MPI processes 25 type: shell 26 no name 27 linear system matrix, followed by the matrix used to construct the preconditioner: 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 not checking for convergence 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: 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 linear system matrix, which is also used to construct the preconditioner: 60 Mat Object: (pc_hpddm_levels_1_sub_) 1 MPI process 61 type: seqaij 62 rows=718, cols=718 63 total number of mallocs used during MatSetValues calls=0 64 not using I-node routines 65 linear system matrix, followed by the matrix used to construct the preconditioner: 66 Mat Object: A 4 MPI processes 67 type: mpiaij 68 rows=4889, cols=841 69 total number of mallocs used during MatSetValues calls=0 70 using I-node (on process 0) routines: found 670 nodes, limit used is 5 71 Mat Object: 4 MPI processes 72 type: normalh 73 rows=841, cols=841 74 KSP Object: (pc_hpddm_coarse_) 1 MPI process 75 type: preonly 76 maximum iterations=10000, initial guess is zero 77 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 78 left preconditioning 79 not checking for convergence 80 PC Object: (pc_hpddm_coarse_) 1 MPI process 81 type: cholesky 82 out-of-place factorization 83 tolerance for zero pivot 2.22045e-14 84 matrix ordering: natural 85 factor fill ratio given 5., needed 1.1 86 Factored matrix: 87 Mat Object: (pc_hpddm_coarse_) 1 MPI process 88 type: seqsbaij 89 rows=80, cols=80, bs=20 90 package used to perform factorization: petsc 91 linear system matrix, which is also used to construct the preconditioner: 92 Mat Object: (pc_hpddm_coarse_) 1 MPI process 93 type: seqsbaij 94 rows=80, cols=80, bs=20 95 total number of mallocs used during MatSetValues calls=0 96 linear system matrix, followed by the matrix used to construct the preconditioner: 97 Mat Object: A 4 MPI processes 98 type: mpiaij 99 rows=4889, cols=841 100 total number of mallocs used during MatSetValues calls=0 101 using I-node (on process 0) routines: found 670 nodes, limit used is 5 102 Mat Object: 4 MPI processes 103 type: normalh 104 rows=841, cols=841 105KSP type: lsqr 106Number of iterations = 9 107Residual norm 1.63035e-05 108