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 1.506, Residual: 0.0373927 6iter = 2, Function value 1.50566, Residual: 1.78454e-05 7iter = 3, Function value 1.50566, Residual: < 1.0e-6 8Tao Object: 1 MPI process 9 type: tron 10 Total PG its: 9, PG tolerance: 0.001 11 TaoLineSearch Object: 1 MPI process 12 type: more-thuente 13 maximum function evaluations=30 14 tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 15 total number of function evaluations=0 16 total number of gradient evaluations=0 17 total number of function/gradient evaluations=1 18 using variable bounds 19 Termination reason: SUCCESS 20 KSP Object: 1 MPI process 21 type: stcg 22 maximum iterations=10000, initial guess is zero 23 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 24 left preconditioning 25 using UNPRECONDITIONED norm type for convergence test 26 PC Object: 1 MPI process 27 type: ilu 28 out-of-place factorization 29 0 levels of fill 30 tolerance for zero pivot 2.22045e-14 31 matrix ordering: natural 32 factor fill ratio given 1., needed 1. 33 Factored matrix: 34 Mat Object: 1 MPI process 35 type: seqaij 36 rows=40, cols=40 37 package used to perform factorization: petsc 38 total: nonzeros=228, allocated nonzeros=228 39 not using I-node routines 40 linear system matrix, which is also used to construct the preconditioner: 41 Mat Object: 1 MPI process 42 type: seqaij 43 rows=40, cols=40 44 total: nonzeros=228, allocated nonzeros=228 45 total number of mallocs used during MatSetValues calls=0 46 not using I-node routines 47 total KSP iterations: 12 48 Active Set subset type: subvec 49 convergence tolerances: gatol=1e-05, grtol=1e-08, steptol=0., gttol=0. 50 Residual in Function/Gradient:=1.4512e-11 51 Objective value=1.50566 52 total number of iterations=3, (max: 50) 53 total number of function/gradient evaluations=14, (max: unlimited) 54 total number of Hessian evaluations=3 55 Solution converged: ||g(X)|| <= gatol 56