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: 1 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 is the same for all blocks, as in the following KSP and PC objects on rank 0: 30 KSP Object: (sub_) 1 MPI processes 31 type: preonly 32 maximum iterations=10000, initial guess is zero 33 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 34 left preconditioning 35 using NONE norm type for convergence test 36 PC Object: (sub_) 1 MPI processes 37 type: ilu 38 out-of-place factorization 39 0 levels of fill 40 tolerance for zero pivot 2.22045e-14 41 matrix ordering: natural 42 factor fill ratio given 1., needed 1. 43 Factored matrix follows: 44 Mat Object: 1 MPI processes 45 type: seqaij 46 rows=28, cols=28 47 package used to perform factorization: petsc 48 total: nonzeros=132, allocated nonzeros=132 49 not using I-node routines 50 linear system matrix = precond matrix: 51 Mat Object: 1 MPI processes 52 type: seqaij 53 rows=28, cols=28 54 total: nonzeros=132, allocated nonzeros=132 55 total number of mallocs used during MatSetValues calls=0 56 not using I-node routines 57 linear system matrix = precond matrix: 58 Mat Object: 3 MPI processes 59 type: mpiaij 60 rows=88, cols=88 61 total: nonzeros=502, allocated nonzeros=502 62 total number of mallocs used during MatSetValues calls=0 63 not using I-node (on process 0) routines 64 total KSP iterations: 40 65 Active Set subset type: subvec 66 convergence tolerances: gatol=1e-05, steptol=0., gttol=0. 67 Residual in Function/Gradient:=4.11637e-08 68 Objective value=1.49406 69 total number of iterations=3, (max: 50) 70 total number of function/gradient evaluations=15, (max: 4000) 71 total number of Hessian evaluations=3 72 Solution converged: ||g(X)|| <= gatol 73