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 = 1, Function value 1.50978, Residual: 0.128026 6iter = 2, Function value 1.5058, Residual: 0.0448655 7iter = 3, Function value 1.50566, Residual: 0.000115801 8iter = 4, Function value 1.50566, Residual: < 1.0e-6 9Tao Object: 1 MPI processes 10 type: bnls 11 Rejected BFGS updates: 0 12 CG steps: 0 13 Newton steps: 4 14 BFGS steps: 0 15 Scaled gradient steps: 0 16 Gradient steps: 0 17 KSP termination reasons: 18 atol: 0 19 rtol: 4 20 ctol: 0 21 negc: 0 22 dtol: 0 23 iter: 0 24 othr: 0 25 TaoLineSearch Object: 1 MPI processes 26 type: more-thuente 27 maximum function evaluations=30 28 tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 29 total number of function evaluations=0 30 total number of gradient evaluations=0 31 total number of function/gradient evaluations=1 32 using variable bounds 33 Termination reason: 1 34 KSP Object: (tao_bnk_) 1 MPI processes 35 type: stcg 36 maximum iterations=10000, initial guess is zero 37 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 38 left preconditioning 39 using UNPRECONDITIONED norm type for convergence test 40 PC Object: (tao_bnk_) 1 MPI processes 41 type: lmvm 42 Mat Object: (pc_lmvm_) 1 MPI processes 43 type: lmvmbfgs 44 rows=48, cols=48 45 Scale type: DIAGONAL 46 Scale history: 1 47 Scale params: alpha=1., beta=0.5, rho=1. 48 Convex factors: phi=0., theta=0.125 49 Max. storage: 5 50 Used storage: 3 51 Number of updates: 3 52 Number of rejects: 0 53 Number of resets: 0 54 Mat Object: (J0_) 1 MPI processes 55 type: lmvmdiagbroyden 56 rows=48, cols=48 57 Scale history: 1 58 Scale params: alpha=1., beta=0.5, rho=1. 59 Convex factor: theta=0.125 60 Max. storage: 1 61 Used storage: 1 62 Number of updates: 3 63 Number of rejects: 0 64 Number of resets: 0 65 linear system matrix = precond matrix: 66 Mat Object: 1 MPI processes 67 type: seqaij 68 rows=40, cols=40 69 total: nonzeros=190, allocated nonzeros=190 70 total number of mallocs used during MatSetValues calls=0 71 not using I-node routines 72 total KSP iterations: 79 73 Active Set subset type: subvec 74 convergence tolerances: gatol=1e-05, steptol=0., gttol=0. 75 Residual in Function/Gradient:=9.00122e-09 76 Objective value=1.50566 77 total number of iterations=4, (max: 50) 78 total number of function/gradient evaluations=6, (max: 4000) 79 total number of Hessian evaluations=4 80 Solution converged: ||g(X)|| <= gatol 81