1 2---- Minimum Surface Area With Plate Problem ----- 3mx:8, my:6, bmx:3, bmy:3, height:0.2 4iter = 0, Function value 1.67039, Residual: 0.47529 5iter = 0, Function value 1.57687, Residual: 0.447462 6 iter = 0, Function value 1.57687, Residual: 0.447462 7 iter = 1, Function value 1.53574, Residual: 0.222622 8 iter = 2, Function value 1.51391, Residual: 0.187842 9 iter = 3, Function value 1.51012, Residual: 0.110361 10iter = 1, Function value 1.50567, Residual: 0.00326476 11 iter = 0, Function value 1.50567, Residual: 0.00326476 12 iter = 1, Function value 1.50567, Residual: 0.00332264 13 iter = 2, Function value 1.50566, Residual: 0.00201118 14 iter = 3, Function value 1.50566, Residual: 0.00125295 15iter = 2, Function value 1.50566, Residual: 1.2998e-06 16Tao Object: 1 MPI process 17 type: bntr 18 Rejected BFGS updates: 0 19 CG steps: 6 20 Newton steps: 2 21 BFGS steps: 0 22 Scaled gradient steps: 0 23 Gradient steps: 0 24 KSP termination reasons: 25 atol: 0 26 rtol: 2 27 ctol: 0 28 negc: 0 29 dtol: 0 30 iter: 0 31 othr: 0 32 TaoLineSearch Object: 1 MPI process 33 type: more-thuente 34 maximum function evaluations=30 35 tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 36 total number of function evaluations=0 37 total number of gradient evaluations=0 38 total number of function/gradient evaluations=0 39 using variable bounds 40 Termination reason: 0 41 KSP Object: (tao_bnk_) 1 MPI process 42 type: stcg 43 maximum iterations=10000, initial guess is zero 44 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 45 left preconditioning 46 using UNPRECONDITIONED norm type for convergence test 47 PC Object: (tao_bnk_) 1 MPI process 48 type: lmvm 49 Mat Object: (tao_bnk_pc_lmvm_) 1 MPI process 50 type: lmvmbfgs 51 rows=48, cols=48 52 Scale type: DIAGONAL 53 Scale history: 1 54 Scale params: alpha=1., beta=0.5, rho=1. 55 Convex factors: phi=0., theta=0.125 56 Max. storage: 5 57 Used storage: 2 58 Number of updates: 2 59 Number of rejects: 0 60 Number of resets: 0 61 Mat Object: (tao_bnk_pc_lmvm_J0_) 1 MPI process 62 type: lmvmdiagbroyden 63 rows=48, cols=48 64 Scale history: 1 65 Scale params: alpha=1., beta=0.5, rho=1. 66 Convex factor: theta=0.125 67 Max. storage: 1 68 Used storage: 1 69 Number of updates: 2 70 Number of rejects: 0 71 Number of resets: 0 72 linear system matrix = precond matrix: 73 Mat Object: 1 MPI process 74 type: seqaij 75 rows=40, cols=40 76 total: nonzeros=190, allocated nonzeros=190 77 total number of mallocs used during MatSetValues calls=0 78 not using I-node routines 79 total KSP iterations: 39 80 Active Set subset type: subvec 81 convergence tolerances: gatol=1e-05, steptol=0., gttol=0. 82 Residual in Function/Gradient:=1.2998e-06 83 Objective value=1.50566 84 total number of iterations=2, (max: 50) 85 total number of function/gradient evaluations=26, (max: 4000) 86 total number of Hessian evaluations=3 87 Solution converged: ||g(X)|| <= gatol 88