lid velocity = 0.0625, prandtl # = 1., grashof # = 1. Linear solve converged due to CONVERGED_RTOL iterations 6 Linear solve did not converge due to DIVERGED_PC_FAILED iterations 0 PC failed due to FACTOR_NUMERIC_ZEROPIVOT Nonlinear solve did not converge due to DIVERGED_LINEAR_SOLVE iterations 1