1c4762a1bSJed Brown 2c4762a1bSJed Brown---- Minimum Surface Area Problem ----- 3c4762a1bSJed Brownmx: 10 my: 10 4c4762a1bSJed Brown 5c4762a1bSJed Browniter = 0, Function value 1.46076, Residual: 0.207785 6c4762a1bSJed Browniter = 0, Function value 1.43581, Residual: 0.187715 7c4762a1bSJed Browniter = 1, Function value 1.41867, Residual: 0.0159523 8c4762a1bSJed Browniter = 2, Function value 1.41847, Residual: 0.000148677 9c4762a1bSJed Browniter = 3, Function value 1.41847, Residual: < 1.0e-6 10c4762a1bSJed BrownTao Object: 2 MPI processes 11c4762a1bSJed Brown type: nls 12c4762a1bSJed Brown Newton steps: 3 13c4762a1bSJed Brown BFGS steps: 0 14c4762a1bSJed Brown Gradient steps: 0 15c4762a1bSJed Brown TaoLineSearch Object: 2 MPI processes 16c4762a1bSJed Brown type: more-thuente 17c4762a1bSJed Brown maximum function evaluations=30 18c4762a1bSJed Brown tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 19c4762a1bSJed Brown total number of function evaluations=0 20c4762a1bSJed Brown total number of gradient evaluations=0 21c4762a1bSJed Brown total number of function/gradient evaluations=1 221404853cSMatthew G. Knepley Termination reason: SUCCESS 23c4762a1bSJed Brown KSP Object: (tao_nls_) 2 MPI processes 24c4762a1bSJed Brown type: stcg 25c4762a1bSJed Brown maximum iterations=15, initial guess is zero 26c4762a1bSJed Brown tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 27c4762a1bSJed Brown left preconditioning 28c4762a1bSJed Brown using UNPRECONDITIONED norm type for convergence test 29c4762a1bSJed Brown PC Object: (tao_nls_) 2 MPI processes 30c4762a1bSJed Brown type: bjacobi 31c4762a1bSJed Brown number of blocks = 2 32020d6619SPierre Jolivet Local solver information for first block is in the following KSP and PC objects on rank 0: 33020d6619SPierre Jolivet Use -tao_nls_ksp_view ::ascii_info_detail to display information for all blocks 348cc725e6SPierre Jolivet KSP Object: (tao_nls_sub_) 1 MPI process 35c4762a1bSJed Brown type: preonly 36c4762a1bSJed Brown maximum iterations=10000, initial guess is zero 37c4762a1bSJed Brown tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 38c4762a1bSJed Brown left preconditioning 398405740aSBarry Smith not checking for convergence 408cc725e6SPierre Jolivet PC Object: (tao_nls_sub_) 1 MPI process 41c4762a1bSJed Brown type: ilu 42c4762a1bSJed Brown out-of-place factorization 43c4762a1bSJed Brown 0 levels of fill 44c4762a1bSJed Brown tolerance for zero pivot 2.22045e-14 45c4762a1bSJed Brown matrix ordering: natural 46c4762a1bSJed Brown factor fill ratio given 1., needed 1. 47*ecf3d421SBarry Smith Factored matrix: 4826cc229bSBarry Smith Mat Object: (tao_nls_sub_) 1 MPI process 49c4762a1bSJed Brown type: seqaij 50c4762a1bSJed Brown rows=50, cols=50 51c4762a1bSJed Brown package used to perform factorization: petsc 52c4762a1bSJed Brown total: nonzeros=364, allocated nonzeros=364 53c4762a1bSJed Brown not using I-node routines 54*ecf3d421SBarry Smith linear system matrix, which is also used to construct the preconditioner: 558cc725e6SPierre Jolivet Mat Object: (tao_nls_sub_) 1 MPI process 56c4762a1bSJed Brown type: seqaij 57c4762a1bSJed Brown rows=50, cols=50 58c4762a1bSJed Brown total: nonzeros=364, allocated nonzeros=364 59c4762a1bSJed Brown total number of mallocs used during MatSetValues calls=0 60c4762a1bSJed Brown not using I-node routines 61*ecf3d421SBarry Smith linear system matrix, which is also used to construct the preconditioner: 62c4762a1bSJed Brown Mat Object: 2 MPI processes 63c4762a1bSJed Brown type: mpiaij 64c4762a1bSJed Brown rows=100, cols=100 65c4762a1bSJed Brown total: nonzeros=784, allocated nonzeros=784 66c4762a1bSJed Brown total number of mallocs used during MatSetValues calls=0 67c4762a1bSJed Brown total KSP iterations: 36 68606f75f6SBarry Smith convergence tolerances: gatol=0.0001, grtol=1e-05, steptol=0., gttol=0. 69c4762a1bSJed Brown Residual in Function/Gradient:=2.64235e-08 70c4762a1bSJed Brown Objective value=1.41847 71c4762a1bSJed Brown total number of iterations=3, (max: 50) 72606f75f6SBarry Smith total number of function evaluations=5, (max: unlimited) 73606f75f6SBarry Smith total number of function/gradient evaluations=5, (max: unlimited) 74c4762a1bSJed Brown total number of Hessian evaluations=4 75c4762a1bSJed Brown Solution converged: ||g(X)|| <= gatol 76