1 0 TAO, Function value: 1.95262, Residual: 0.794468 2 0 TAO, Function value: 0.970661, Residual: 0.228227 3 1 TAO, Function value: 0.892481, Residual: 0.247462 4 2 TAO, Function value: 0.853749, Residual: 0.0215901 5 3 TAO, Function value: 0.852106, Residual: 0.0319342 6 4 TAO, Function value: 0.849969, Residual: 0.00138967 7 5 TAO, Function value: 0.849937, Residual: 9.77977e-05 8 6 TAO, Function value: 0.849937, Residual: 3.47414e-08 9 7 TAO, Function value: 0.849937, Residual: 4.34207e-14 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: CONTINUE_ITERATING 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: 4 42 ctol: 3 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: CONTINUE_ITERATING 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: seqdense 67 rows=10, cols=10 68 total: nonzeros=100, allocated nonzeros=100 69 total number of mallocs used during MatSetValues calls=0 70 total KSP iterations: 48 71 Active Set subset type: subvec 72 convergence tolerances: gatol=1e-08, grtol=1e-08,steptol=0., gttol=0. 73 Residual in Function/Gradient:=4.34207e-14 74 Objective value=0.849937 75 total number of iterations=7, (max: 50) 76 total number of function/gradient evaluations=21, (max: unlimited) 77 total number of Hessian evaluations=8 78 Solution converged: ||g(X)|| <= gatol 79Vec Object: 1 MPI process 80 type: seq 812. 822.88134 832. 842.79477 852. 862.68143 872. 882.52676 892. 902.30725 912. 921.99477 932. 941.59983 952. 961.22992 972. 980.984687 992. 1000.860197 101