Tao Object: 1 MPI process
  type: nls
    Newton steps: 2
    BFGS steps: 0
    Gradient steps: 0
    nls ksp atol: 0
    nls ksp rtol: 2
    nls ksp ctol: 0
    nls ksp negc: 0
    nls ksp dtol: 0
    nls ksp iter: 0
    nls ksp othr: 0
  Objective function:
    Scale (tao_objective_scale): 1.
    Function:
      TaoTerm Object: 1 MPI process
        type: sum
        solution vector space: N = 20 [VecType standard (tao_term_solution_vec_type)]
        parameter vector space: (optional) K = 130 [VecType nest (tao_term_parameters_vec_type)]
        Hessian MatType (tao_term_hessian_mat_type): aij
        Hessian preconditioning MatType (tao_term_hessian_pre_mat_type): aij
        Sum of 3 terms:
          Summand 0:
            Scale (tao_term_sum_data_scale): 1.
            Term:
              TaoTerm Object: (data_) 1 MPI process
                type: quadratic
                solution vector space: N = 100 [VecType seq (tao_term_solution_vec_type)]
                parameter vector space: (optional) K = 100 [VecType seq (tao_term_parameters_vec_type)]
                Hessian MatType (tao_term_hessian_mat_type): diagonal
                Hessian preconditioning MatType (tao_term_hessian_pre_mat_type): diagonal
                Mat Object: 1 MPI process
                  type: diagonal
                  rows=100, cols=100
                    Vec Object: 1 MPI process
                      type: seq
                      length=100
                total number of function evaluations=5
                total number of function/gradient evaluations=3
                total number of Hessian evaluations=2
            Map:
              Mat Object: (Amat_) 1 MPI process
                type: seqdense
                rows=100, cols=20
                total: nonzeros=2000, allocated nonzeros=2000
                total number of mallocs used during MatSetValues calls=0
          Summand 1:
            Scale (tao_term_sum_ridge_scale): 0.1
            Term:
              TaoTerm Object: (ridge_) 1 MPI process
                type: halfl2squared
                solution vector space: N = 20 [VecType standard (tao_term_solution_vec_type)]
                parameter vector space: (optional) K = 20 [VecType standard (tao_term_parameters_vec_type)]
                Hessian MatType (tao_term_hessian_mat_type): diagonal
                Hessian preconditioning MatType (tao_term_hessian_pre_mat_type): diagonal
                total number of function evaluations=5
                total number of function/gradient evaluations=3
                total number of Hessian evaluations=2
            Map: unmapped
          Summand 2:
            Scale (tao_term_sum_lasso_scale): 0.1
            Term:
              TaoTerm Object: (lasso_) 1 MPI process
                type: l1
                solution vector space: N = 10 [VecType standard (tao_term_solution_vec_type)]
                parameter vector space: (optional) K = 10 [VecType standard (tao_term_parameters_vec_type)]
                Hessian MatType (tao_term_hessian_mat_type): diagonal
                epsilon (tao_term_l1_epsilon): 0.
                total number of function evaluations=5
                total number of function/gradient evaluations=3
                total number of Hessian evaluations=2
            Map:
              Mat Object: (Dmat_) 1 MPI process
                type: seqdense
                rows=10, cols=20
                total: nonzeros=200, allocated nonzeros=200
                total number of mallocs used during MatSetValues calls=0
        total number of function evaluations=5
        total number of function/gradient evaluations=3
        total number of Hessian evaluations=2
    Map: unmapped
  TaoLineSearch Object: 1 MPI process
    type: more-thuente
    maximum function evaluations=30
    tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9
    total number of function evaluations=0
    total number of gradient evaluations=0
    total number of function/gradient evaluations=1
    Termination reason: SUCCESS
  KSP Object: (tao_nls_) 1 MPI process
    type: stcg
    maximum iterations=10000, initial guess is zero
    tolerances: relative=1e-05, absolute=1e-50, divergence=10000.
    left preconditioning
    using UNPRECONDITIONED norm type for convergence test
  PC Object: (tao_nls_) 1 MPI process
    type: ilu
      out-of-place factorization
      0 levels of fill
      tolerance for zero pivot 2.22045e-14
      matrix ordering: natural
      factor fill ratio given 1., needed 1.
        Factored matrix:
          Mat Object: (tao_nls_) 1 MPI process
            type: seqaij
            rows=20, cols=20
            package used to perform factorization: petsc
            total: nonzeros=400, allocated nonzeros=400
              using I-node routines: found 4 nodes, limit used is 5
    linear system matrix, followed by the matrix used to construct the preconditioner:
    Mat Object: 1 MPI process
      type: seqaij
      rows=20, cols=20
      total: nonzeros=400, allocated nonzeros=400
      total number of mallocs used during MatSetValues calls=0
        using I-node routines: found 4 nodes, limit used is 5
    Mat Object: 1 MPI process
      type: seqaij
      rows=20, cols=20
      total: nonzeros=400, allocated nonzeros=400
      total number of mallocs used during MatSetValues calls=0
        using I-node routines: found 4 nodes, limit used is 5
  total KSP iterations: 2
  convergence tolerances: gatol=1e-08,   grtol=1e-08,   steptol=0.,   gttol=0.
  Residual in Function/Gradient:=6.84424e-15
  Objective value=19.64
  total number of iterations=2,                          (max: 50)
  total number of function evaluations=5,                  (max: unlimited)
  total number of function/gradient evaluations=3,      (max: unlimited)
  total number of Hessian evaluations=2
  Solution converged:    ||g(X)|| <= gatol
