SNES Object: 1 MPI processes type: newtonls maximum iterations=50, maximum function evaluations=10000 tolerances: relative=1e-05, absolute=1e-50, solution=1e-08 total number of linear solver iterations=196 total number of function evaluations=5 norm schedule ALWAYS SNESLineSearch Object: 1 MPI processes type: bt interpolation: cubic alpha=1.000000e-04 maxstep=1.000000e+08, minlambda=1.000000e-12 tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08 maximum iterations=40 KSP Object: 1 MPI processes type: fgmres GMRES: restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement GMRES: happy breakdown tolerance 1e-30 maximum iterations=10000, initial guess is zero tolerances: relative=1e-08, absolute=1e-50, divergence=10000. right preconditioning using UNPRECONDITIONED norm type for convergence test PC Object: 1 MPI processes type: fieldsplit FieldSplit with Schur preconditioner, factorization UPPER Preconditioner for the Schur complement formed from user provided matrix Split info: Split number 0 Defined by IS Split number 1 Defined by IS KSP solver for A00 block KSP Object: (fieldsplit_displacement_) 1 MPI processes type: preonly maximum iterations=10000, initial guess is zero tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using NONE norm type for convergence test PC Object: (fieldsplit_displacement_) 1 MPI processes type: gamg MG: type is MULTIPLICATIVE, levels=3 cycles=v Cycles per PCApply=1 Using Galerkin computed coarse grid matrices GAMG specific options Threshold for dropping small values from graph 0. AGG specific options Symmetric graph false Coarse grid solver -- level ------------------------------- KSP Object: (fieldsplit_displacement_mg_coarse_) 1 MPI processes type: preonly maximum iterations=1, initial guess is zero tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using NONE norm type for convergence test PC Object: (fieldsplit_displacement_mg_coarse_) 1 MPI processes type: bjacobi block Jacobi: number of blocks = 1 Local solve is same for all blocks, in the following KSP and PC objects: KSP Object: (fieldsplit_displacement_mg_coarse_sub_) 1 MPI processes type: preonly maximum iterations=1, initial guess is zero tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using NONE norm type for convergence test PC Object: (fieldsplit_displacement_mg_coarse_sub_) 1 MPI processes type: lu LU: out-of-place factorization tolerance for zero pivot 2.22045e-14 using diagonal shift on blocks to prevent zero pivot [INBLOCKS] matrix ordering: nd factor fill ratio given 5., needed 1. Factored matrix follows: Mat Object: 1 MPI processes type: seqaij rows=12, cols=12, bs=6 package used to perform factorization: petsc total: nonzeros=144, allocated nonzeros=144 total number of mallocs used during MatSetValues calls =0 using I-node routines: found 3 nodes, limit used is 5 linear system matrix = precond matrix: Mat Object: 1 MPI processes type: seqaij rows=12, cols=12, bs=6 total: nonzeros=144, allocated nonzeros=144 total number of mallocs used during MatSetValues calls =0 using I-node routines: found 3 nodes, limit used is 5 linear system matrix = precond matrix: Mat Object: 1 MPI processes type: seqaij rows=12, cols=12, bs=6 total: nonzeros=144, allocated nonzeros=144 total number of mallocs used during MatSetValues calls =0 using I-node routines: found 3 nodes, limit used is 5 Down solver (pre-smoother) on level 1 ------------------------------- KSP Object: (fieldsplit_displacement_mg_levels_1_) 1 MPI processes type: chebyshev Chebyshev: eigenvalue estimates: min = 0.0998906, max = 1.0988 Chebyshev: eigenvalues estimated using gmres with translations [0. 0.1; 0. 1.1] KSP Object: (fieldsplit_displacement_mg_levels_1_esteig_) 1 MPI processes type: gmres GMRES: restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement GMRES: happy breakdown tolerance 1e-30 maximum iterations=10, initial guess is zero tolerances: relative=1e-12, absolute=1e-50, divergence=10000. left preconditioning using PRECONDITIONED norm type for convergence test maximum iterations=2 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using nonzero initial guess using NONE norm type for convergence test PC Object: (fieldsplit_displacement_mg_levels_1_) 1 MPI processes type: sor SOR: type = local_symmetric, iterations = 1, local iterations = 1, omega = 1. linear system matrix = precond matrix: Mat Object: 1 MPI processes type: seqaij rows=78, cols=78, bs=6 total: nonzeros=5004, allocated nonzeros=5004 total number of mallocs used during MatSetValues calls =0 using I-node routines: found 26 nodes, limit used is 5 Up solver (post-smoother) same as down solver (pre-smoother) Down solver (pre-smoother) on level 2 ------------------------------- KSP Object: (fieldsplit_displacement_mg_levels_2_) 1 MPI processes type: chebyshev Chebyshev: eigenvalue estimates: min = 0.0998922, max = 1.09881 Chebyshev: eigenvalues estimated using gmres with translations [0. 0.1; 0. 1.1] KSP Object: (fieldsplit_displacement_mg_levels_2_esteig_) 1 MPI processes type: gmres GMRES: restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement GMRES: happy breakdown tolerance 1e-30 maximum iterations=10, initial guess is zero tolerances: relative=1e-12, absolute=1e-50, divergence=10000. left preconditioning using PRECONDITIONED norm type for convergence test maximum iterations=2 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using nonzero initial guess using NONE norm type for convergence test PC Object: (fieldsplit_displacement_mg_levels_2_) 1 MPI processes type: sor SOR: type = local_symmetric, iterations = 1, local iterations = 1, omega = 1. linear system matrix = precond matrix: Mat Object: (fieldsplit_displacement_) 1 MPI processes type: seqaij rows=1701, cols=1701 total: nonzeros=109359, allocated nonzeros=109359 total number of mallocs used during MatSetValues calls =0 has attached near null space using I-node routines: found 567 nodes, limit used is 5 Up solver (post-smoother) same as down solver (pre-smoother) linear system matrix = precond matrix: Mat Object: (fieldsplit_displacement_) 1 MPI processes type: seqaij rows=1701, cols=1701 total: nonzeros=109359, allocated nonzeros=109359 total number of mallocs used during MatSetValues calls =0 has attached near null space using I-node routines: found 567 nodes, limit used is 5 KSP solver for S = A11 - A10 inv(A00) A01 KSP Object: (fieldsplit_pressure_) 1 MPI processes type: preonly maximum iterations=10000, initial guess is zero tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using NONE norm type for convergence test PC Object: (fieldsplit_pressure_) 1 MPI processes type: jacobi linear system matrix followed by preconditioner matrix: Mat Object: (fieldsplit_pressure_) 1 MPI processes type: schurcomplement rows=125, cols=125 Schur complement A11 - A10 inv(A00) A01 A11 Mat Object: 1 MPI processes type: seqaij rows=125, cols=125 total: nonzeros=1333, allocated nonzeros=1333 total number of mallocs used during MatSetValues calls =0 not using I-node routines A10 Mat Object: 1 MPI processes type: seqaij rows=125, cols=1701 total: nonzeros=12315, allocated nonzeros=12315 total number of mallocs used during MatSetValues calls =0 not using I-node routines KSP of A00 KSP Object: (fieldsplit_displacement_) 1 MPI processes type: preonly maximum iterations=10000, initial guess is zero tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using NONE norm type for convergence test PC Object: (fieldsplit_displacement_) 1 MPI processes type: gamg MG: type is MULTIPLICATIVE, levels=3 cycles=v Cycles per PCApply=1 Using Galerkin computed coarse grid matrices GAMG specific options Threshold for dropping small values from graph 0. AGG specific options Symmetric graph false Coarse grid solver -- level ------------------------------- KSP Object: (fieldsplit_displacement_mg_coarse_) 1 MPI processes type: preonly maximum iterations=1, initial guess is zero tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using NONE norm type for convergence test PC Object: (fieldsplit_displacement_mg_coarse_) 1 MPI processes type: bjacobi block Jacobi: number of blocks = 1 Local solve is same for all blocks, in the following KSP and PC objects: KSP Object: (fieldsplit_displacement_mg_coarse_sub_) 1 MPI processes type: preonly maximum iterations=1, initial guess is zero tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using NONE norm type for convergence test PC Object: (fieldsplit_displacement_mg_coarse_sub_) 1 MPI processes type: lu LU: out-of-place factorization tolerance for zero pivot 2.22045e-14 using diagonal shift on blocks to prevent zero pivot [INBLOCKS] matrix ordering: nd factor fill ratio given 5., needed 1. Factored matrix follows: Mat Object: 1 MPI processes type: seqaij rows=12, cols=12, bs=6 package used to perform factorization: petsc total: nonzeros=144, allocated nonzeros=144 total number of mallocs used during MatSetValues calls =0 using I-node routines: found 3 nodes, limit used is 5 linear system matrix = precond matrix: Mat Object: 1 MPI processes type: seqaij rows=12, cols=12, bs=6 total: nonzeros=144, allocated nonzeros=144 total number of mallocs used during MatSetValues calls =0 using I-node routines: found 3 nodes, limit used is 5 linear system matrix = precond matrix: Mat Object: 1 MPI processes type: seqaij rows=12, cols=12, bs=6 total: nonzeros=144, allocated nonzeros=144 total number of mallocs used during MatSetValues calls =0 using I-node routines: found 3 nodes, limit used is 5 Down solver (pre-smoother) on level 1 ------------------------------- KSP Object: (fieldsplit_displacement_mg_levels_1_) 1 MPI processes type: chebyshev Chebyshev: eigenvalue estimates: min = 0.0998906, max = 1.0988 Chebyshev: eigenvalues estimated using gmres with translations [0. 0.1; 0. 1.1] KSP Object: (fieldsplit_displacement_mg_levels_1_esteig_) 1 MPI processes type: gmres GMRES: restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement GMRES: happy breakdown tolerance 1e-30 maximum iterations=10, initial guess is zero tolerances: relative=1e-12, absolute=1e-50, divergence=10000. left preconditioning using PRECONDITIONED norm type for convergence test maximum iterations=2 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using nonzero initial guess using NONE norm type for convergence test PC Object: (fieldsplit_displacement_mg_levels_1_) 1 MPI processes type: sor SOR: type = local_symmetric, iterations = 1, local iterations = 1, omega = 1. linear system matrix = precond matrix: Mat Object: 1 MPI processes type: seqaij rows=78, cols=78, bs=6 total: nonzeros=5004, allocated nonzeros=5004 total number of mallocs used during MatSetValues calls =0 using I-node routines: found 26 nodes, limit used is 5 Up solver (post-smoother) same as down solver (pre-smoother) Down solver (pre-smoother) on level 2 ------------------------------- KSP Object: (fieldsplit_displacement_mg_levels_2_) 1 MPI processes type: chebyshev Chebyshev: eigenvalue estimates: min = 0.0998922, max = 1.09881 Chebyshev: eigenvalues estimated using gmres with translations [0. 0.1; 0. 1.1] KSP Object: (fieldsplit_displacement_mg_levels_2_esteig_) 1 MPI processes type: gmres GMRES: restart=30, using Classical (unmodified) Gram-Schmidt Orthogonalization with no iterative refinement GMRES: happy breakdown tolerance 1e-30 maximum iterations=10, initial guess is zero tolerances: relative=1e-12, absolute=1e-50, divergence=10000. left preconditioning using PRECONDITIONED norm type for convergence test maximum iterations=2 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using nonzero initial guess using NONE norm type for convergence test PC Object: (fieldsplit_displacement_mg_levels_2_) 1 MPI processes type: sor SOR: type = local_symmetric, iterations = 1, local iterations = 1, omega = 1. linear system matrix = precond matrix: Mat Object: (fieldsplit_displacement_) 1 MPI processes type: seqaij rows=1701, cols=1701 total: nonzeros=109359, allocated nonzeros=109359 total number of mallocs used during MatSetValues calls =0 has attached near null space using I-node routines: found 567 nodes, limit used is 5 Up solver (post-smoother) same as down solver (pre-smoother) linear system matrix = precond matrix: Mat Object: (fieldsplit_displacement_) 1 MPI processes type: seqaij rows=1701, cols=1701 total: nonzeros=109359, allocated nonzeros=109359 total number of mallocs used during MatSetValues calls =0 has attached near null space using I-node routines: found 567 nodes, limit used is 5 A01 Mat Object: 1 MPI processes type: seqaij rows=1701, cols=125 total: nonzeros=12315, allocated nonzeros=12315 total number of mallocs used during MatSetValues calls =0 using I-node routines: found 567 nodes, limit used is 5 Mat Object: 1 MPI processes type: seqaij rows=125, cols=125 total: nonzeros=1333, allocated nonzeros=1333 total number of mallocs used during MatSetValues calls =0 not using I-node routines linear system matrix = precond matrix: Mat Object: 1 MPI processes type: seqaij rows=1826, cols=1826 total: nonzeros=135322, allocated nonzeros=135322 total number of mallocs used during MatSetValues calls =0 using I-node routines: found 617 nodes, limit used is 5