lid velocity = 0.0625, prandtl # = 1., grashof # = 1. 0 SNES Function norm 0.239155 0 KSP Residual norm 0.0802764 1 KSP Residual norm 0.0249277 2 KSP Residual norm 0.0117306 3 KSP Residual norm 0.00526274 4 KSP Residual norm 0.00463185 5 KSP Residual norm 0.00306201 6 KSP Residual norm 0.0020143 7 KSP Residual norm 0.00156512 8 KSP Residual norm 0.0012814 9 KSP Residual norm 0.00109837 10 KSP Residual norm 0.000748519 11 KSP Residual norm 0.000592453 12 KSP Residual norm 0.000448783 13 KSP Residual norm 0.000378752 14 KSP Residual norm 0.000264337 15 KSP Residual norm 0.000173765 16 KSP Residual norm 0.000111263 17 KSP Residual norm 6.5666e-05 18 KSP Residual norm 1.75064e-05 19 KSP Residual norm 1.60451e-05 20 KSP Residual norm 9.20169e-06 21 KSP Residual norm 1.08239e-06 22 KSP Residual norm 8.45334e-07 23 KSP Residual norm 3.62484e-07 1 SNES Function norm 6.83886e-05 0 KSP Residual norm 1.34538e-05 1 KSP Residual norm 3.5938e-06 2 KSP Residual norm 1.43034e-06 3 KSP Residual norm 3.96202e-07 4 KSP Residual norm 3.10187e-07 5 KSP Residual norm 2.18322e-07 6 KSP Residual norm 1.90422e-07 7 KSP Residual norm 1.33363e-07 8 KSP Residual norm 9.79339e-08 9 KSP Residual norm 8.35383e-08 10 KSP Residual norm 7.09248e-08 11 KSP Residual norm 5.69143e-08 12 KSP Residual norm 3.19231e-08 13 KSP Residual norm 2.0429e-08 14 KSP Residual norm 1.73693e-08 15 KSP Residual norm 8.73233e-09 16 KSP Residual norm 5.44314e-09 17 KSP Residual norm 4.75858e-09 18 KSP Residual norm 3.18157e-09 19 KSP Residual norm 8.028e-10 20 KSP Residual norm 7.187e-10 21 KSP Residual norm 2.688e-10 22 KSP Residual norm 6.997e-11 2 SNES Function norm 1.22235e-09 SNES Object: 2 MPI processes type: newtonls maximum iterations=50, maximum function evaluations=10000 tolerances: relative=1e-08, absolute=1e-50, solution=1e-08 total number of linear solver iterations=45 total number of function evaluations=3 norm schedule ALWAYS Jacobian is built using colored finite differences on a DMDA SNESLineSearch Object: 2 MPI processes type: bt interpolation: cubic alpha=1.000000e-04 maxlambda=1.000000e+00, minlambda=1.000000e-12 tolerances: relative=1.000000e-08, absolute=1.000000e-15, lambda=1.000000e-08 maximum iterations=40 KSP Object: 2 MPI processes type: gmres restart=30, using classical (unmodified) Gram-Schmidt orthogonalization with no iterative refinement happy breakdown tolerance=1e-30 maximum iterations=10000, initial guess is zero tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using PRECONDITIONED norm type for convergence test PC Object: 2 MPI processes type: kaczmarz lambda = 1. linear system matrix, which is also used to construct the preconditioner: Mat Object: 2 MPI processes type: mpiaij rows=64, cols=64, bs=4 total: nonzeros=1024, allocated nonzeros=1024 total number of mallocs used during MatSetValues calls=0 Number of SNES iterations = 2