1 0 TAO, Function value: 1.95262, Residual: 0.794468 2 0 TAO, Function value: 0.956287, Residual: 0.206556 3 1 TAO, Function value: 0.882116, Residual: 0.12537 4 2 TAO, Function value: 0.855085, Residual: 0.0220737 5 3 TAO, Function value: 0.852475, Residual: 0.0287703 6 4 TAO, Function value: 0.850011, Residual: 0.00385325 7 5 TAO, Function value: 0.849937, Residual: 0.000146559 8 6 TAO, Function value: 0.849937, Residual: 3.75591e-07 9 7 TAO, Function value: 0.849937, Residual: 1.60304e-12 10Tao Object: 1 MPI process 11 type: bntr 12 Tao Object: (tao_bnk_cg_) 1 MPI process 13 type: bncg 14 CG Type: ssml_bfgs 15 Skipped Stepdirection Updates: 0 16 Scaled gradient steps: 0 17 Pure gradient steps: 0 18 Not a descent direction: 0 19 Line search fails: 0 20 Matrix has not been preallocated yet 21 TaoLineSearch Object: (tao_bnk_cg_) 1 MPI process 22 type: more-thuente 23 maximum function evaluations=30 24 tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 25 total number of function evaluations=0 26 total number of gradient evaluations=0 27 total number of function/gradient evaluations=0 28 Termination reason: 0 29 Active Set subset type: subvec 30 convergence tolerances: gatol=1e-08, grtol=1e-08, steptol=0., gttol=0. 31 Residual in Function/Gradient:=0. 32 Objective value=0. 33 total number of iterations=0, (max: 2000) 34 Solver never run 35 CG steps: 0 36 Newton steps: 7 37 Scaled gradient steps: 0 38 Gradient steps: 0 39 KSP termination reasons: 40 atol: 0 41 rtol: 3 42 ctol: 4 43 negc: 0 44 dtol: 0 45 iter: 0 46 othr: 0 47 TaoLineSearch Object: 1 MPI process 48 type: more-thuente 49 maximum function evaluations=30 50 tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 51 total number of function evaluations=0 52 total number of gradient evaluations=0 53 total number of function/gradient evaluations=0 54 using variable bounds 55 Termination reason: 0 56 KSP Object: (tao_bnk_) 1 MPI process 57 type: stcg 58 maximum iterations=10000, initial guess is zero 59 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 60 left preconditioning 61 using UNPRECONDITIONED norm type for convergence test 62 PC Object: (tao_bnk_) 1 MPI process 63 type: none 64 linear system matrix = precond matrix: 65 Mat Object: 1 MPI process 66 type: submatrix 67 rows=10, cols=10 68 total KSP iterations: 45 69 Active Set subset type: subvec 70 convergence tolerances: gatol=1e-08, grtol=1e-08, steptol=0., gttol=0. 71 Residual in Function/Gradient:=1.60304e-12 72 Objective value=0.849937 73 total number of iterations=7, (max: 50) 74 total number of function/gradient evaluations=21, (max: unlimited) 75 total number of Hessian evaluations=8 76 Solution converged: ||g(X)|| <= gatol 77Vec Object: 1 MPI process 78 type: seq 792. 802.88134 812. 822.79477 832. 842.68143 852. 862.52676 872. 882.30725 892. 901.99477 912. 921.59983 932. 941.22992 952. 960.984687 972. 980.860197 99