solve_constraints
optimizing for argument u (1089) with drop tolerance 1e-12
residual norm: 0.0e+00
optimal value: 0.0e+00
constrained 128 degrees of freedom of u
solve
optimizing for argument u (1089) using direct method
solving 961 dof system to machine precision using arnoldi solver
constructing symmetric direct preconditioner
residual decreased by 13.9 orders using 0 krylov vectors
residual decreased by 0.3 orders using 1 krylov vectors
solver returned with residual 2e-16
residual norm: 2.2e-16
optimal value: -1.8e-02
