1 2---- Minimum Surface Area With Plate Problem ----- 3mx:8, my:12, bmx:4, bmy:10, height:0.1 4iter = 0, Function value 1.58854, Residual: 0.311154 5iter = 1, Function value 1.49721, Residual: 0.0993624 6iter = 2, Function value 1.49406, Residual: 0.000580218 7iter = 3, Function value 1.49406, Residual: < 1.0e-6 8Tao Object: 3 MPI processes 9 type: tron 10 Total PG its: 9, PG tolerance: 0.001 11 TaoLineSearch Object: 3 MPI processes 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: 3 MPI processes 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: 3 MPI processes 27 type: bjacobi 28 number of blocks = 3 29 Local solver information for first block is in the following KSP and PC objects on rank 0: 30 Use -ksp_view ::ascii_info_detail to display information for all blocks 31 KSP Object: (sub_) 1 MPI process 32 type: preonly 33 maximum iterations=10000, initial guess is zero 34 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 35 left preconditioning 36 not checking for convergence 37 PC Object: (sub_) 1 MPI process 38 type: ilu 39 out-of-place factorization 40 0 levels of fill 41 tolerance for zero pivot 2.22045e-14 42 matrix ordering: natural 43 factor fill ratio given 1., needed 1. 44 Factored matrix: 45 Mat Object: (sub_) 1 MPI process 46 type: seqaij 47 rows=28, cols=28 48 package used to perform factorization: petsc 49 total: nonzeros=158, allocated nonzeros=158 50 not using I-node routines 51 linear system matrix, which is also used to construct the preconditioner: 52 Mat Object: (sub_) 1 MPI process 53 type: seqaij 54 rows=28, cols=28 55 total: nonzeros=158, allocated nonzeros=158 56 total number of mallocs used during MatSetValues calls=0 57 not using I-node routines 58 linear system matrix, which is also used to construct the preconditioner: 59 Mat Object: 3 MPI processes 60 type: mpiaij 61 rows=88, cols=88 62 total: nonzeros=624, allocated nonzeros=624 63 total number of mallocs used during MatSetValues calls=0 64 not using I-node (on process 0) routines 65 total KSP iterations: 40 66 Active Set subset type: subvec 67 convergence tolerances: gatol=1e-05, grtol=1e-08, steptol=0., gttol=0. 68 Residual in Function/Gradient:=4.11637e-08 69 Objective value=1.49406 70 total number of iterations=3, (max: 50) 71 total number of function/gradient evaluations=15, (max: unlimited) 72 total number of Hessian evaluations=3 73 Solution converged: ||g(X)|| <= gatol 74