1lid velocity = 200., prandtl # = 1., grashof # = 10000. 2 0 SNES Function norm 2240.15 3 1 SNES Function norm 0.590311 4 2 SNES Function norm 5.84956e-06 5 Nonlinear solve converged due to CONVERGED_FNORM_RELATIVE iterations 2 6 0 SNES Function norm 3455.4 7 1 SNES Function norm 201221. 8 Nonlinear solve did not converge due to DIVERGED_INNER iterations 1 9 SNES Object: 2 MPI processes 10 type: ngmres 11 Number of stored past updates: 30 12 Residual selection: gammaA=2e+00, gammaC=2e+00 13 Difference restart: epsilonB=1e-01, deltaB=9e-01 14 Restart on F_M residual increase: FALSE 15 maximum iterations=10000, maximum function evaluations=30000 16 tolerances: relative=1e-08, absolute=1e-50, solution=1e-08 17 total number of function evaluations=2 18 norm schedule ALWAYS 19 total number of grid sequence refinements=2 20 Jacobian is built using a DMDA local Jacobian 21 SNESLineSearch Object: 2 MPI processes 22 type: basic 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=1 26 SNES Object: (npc_) 2 MPI processes 27 type: fas 28 type is MULTIPLICATIVE, levels=2, cycles=1 29 Not using Galerkin computed coarse grid function evaluation 30 Coarse grid solver -- level 0 ------------------------------- 31 SNES Object: (npc_fas_coarse_) 2 MPI processes 32 type: newtonls 33 maximum iterations=50, maximum function evaluations=10000 34 tolerances: relative=1e-08, absolute=1e-50, solution=1e-08 35 total number of linear solver iterations=8 36 total number of function evaluations=43 37 Jacobian is built using colored finite differences on a DMDA 38 SNESLineSearch Object: (npc_fas_coarse_) 2 MPI processes 39 type: bt 40 interpolation: cubic 41 alpha=1.000000e-04 42 maxstep=1.000000e+08, minlambda=1.000000e-12 43 tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08 44 maximum iterations=40 45 KSP Object: (npc_fas_coarse_) 2 MPI processes 46 type: preonly 47 maximum iterations=10000, initial guess is zero 48 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 49 left preconditioning 50 using NONE norm type for convergence test 51 PC Object: (npc_fas_coarse_) 2 MPI processes 52 type: bjacobi 53 number of blocks = 2 54 Local solver is the same for all blocks, as in the following KSP and PC objects on rank 0: 55 KSP Object: (npc_fas_coarse_sub_) 1 MPI processes 56 type: preonly 57 maximum iterations=10000, initial guess is zero 58 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 59 left preconditioning 60 using NONE norm type for convergence test 61 PC Object: (npc_fas_coarse_sub_) 1 MPI processes 62 type: ilu 63 out-of-place factorization 64 0 levels of fill 65 tolerance for zero pivot 2.22045e-14 66 matrix ordering: natural 67 factor fill ratio given 1., needed 1. 68 Factored matrix follows: 69 Mat Object: 1 MPI processes 70 type: seqaij 71 rows=32, cols=32, bs=4 72 package used to perform factorization: petsc 73 total: nonzeros=448, allocated nonzeros=448 74 using I-node routines: found 8 nodes, limit used is 5 75 linear system matrix = precond matrix: 76 Mat Object: 1 MPI processes 77 type: seqaij 78 rows=32, cols=32, bs=4 79 total: nonzeros=448, allocated nonzeros=448 80 total number of mallocs used during MatSetValues calls=0 81 using I-node routines: found 8 nodes, limit used is 5 82 linear system matrix = precond matrix: 83 Mat Object: 2 MPI processes 84 type: mpiaij 85 rows=64, cols=64, bs=4 86 total: nonzeros=1024, allocated nonzeros=1024 87 total number of mallocs used during MatSetValues calls=0 88 Down solver (pre-smoother) on level 1 ------------------------------- 89 SNES Object: (npc_fas_levels_1_) 2 MPI processes 90 type: nrichardson 91 maximum iterations=1, maximum function evaluations=30000 92 tolerances: relative=0., absolute=0., solution=0. 93 total number of function evaluations=4 94 norm schedule FINALONLY 95 Jacobian is built using a DMDA local Jacobian 96 SNESLineSearch Object: (npc_fas_levels_1_) 2 MPI processes 97 type: l2 98 maxstep=1.000000e+08, minlambda=1.000000e-12 99 tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08 100 maximum iterations=1 101 Up solver (post-smoother) same as down solver (pre-smoother) 102 maximum iterations=1, maximum function evaluations=30000 103 tolerances: relative=0., absolute=0., solution=0. 104 total number of function evaluations=0 105 norm schedule FINALONLY 106 Jacobian is built using a DMDA local Jacobian 107Number of SNES iterations = 1 108