1c4762a1bSJed Brown 2c4762a1bSJed Brown---- Minimum Surface Area With Plate Problem ----- 3c4762a1bSJed Brownmx:8, my:6, bmx:3, bmy:3, height:0.2 4c4762a1bSJed Browniter = 0, Function value 1.67039, Residual: 0.47529 5c4762a1bSJed Browniter = 0, Function value 1.57687, Residual: 0.447462 6c4762a1bSJed Browniter = 1, Function value 1.52082, Residual: 0.221251 7c4762a1bSJed Browniter = 2, Function value 1.50587, Residual: 0.0266265 8c4762a1bSJed Browniter = 3, Function value 1.50566, Residual: 0.000666715 9c4762a1bSJed Browniter = 4, Function value 1.50566, Residual: < 1.0e-6 108cc725e6SPierre JolivetTao Object: 1 MPI process 11c4762a1bSJed Brown type: bntl 12b17ffb64SBarry Smith Tao Object: (tao_bnk_cg_) 1 MPI process 13b17ffb64SBarry Smith type: bncg 14b17ffb64SBarry Smith CG Type: ssml_bfgs 15b17ffb64SBarry Smith Skipped Stepdirection Updates: 0 16b17ffb64SBarry Smith Scaled gradient steps: 0 17b17ffb64SBarry Smith Pure gradient steps: 0 18b17ffb64SBarry Smith Not a descent direction: 0 19b17ffb64SBarry Smith Line search fails: 0 20b17ffb64SBarry Smith Matrix has not been preallocated yet 21b17ffb64SBarry Smith TaoLineSearch Object: (tao_bnk_cg_) 1 MPI process 22b17ffb64SBarry Smith type: more-thuente 23b17ffb64SBarry Smith maximum function evaluations=30 24b17ffb64SBarry Smith tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 25b17ffb64SBarry Smith total number of function evaluations=0 26b17ffb64SBarry Smith total number of gradient evaluations=0 27b17ffb64SBarry Smith total number of function/gradient evaluations=0 281404853cSMatthew G. Knepley Termination reason: CONTINUE_ITERATING 29b17ffb64SBarry Smith Active Set subset type: subvec 30606f75f6SBarry Smith convergence tolerances: gatol=1e-08, grtol=1e-08, steptol=0., gttol=0. 31b17ffb64SBarry Smith Residual in Function/Gradient:=0. 32b17ffb64SBarry Smith Objective value=0. 33b17ffb64SBarry Smith total number of iterations=0, (max: 2000) 34606f75f6SBarry Smith Solver never run 35c4762a1bSJed Brown Rejected BFGS updates: 0 36c4762a1bSJed Brown CG steps: 0 37c4762a1bSJed Brown Newton steps: 4 38c4762a1bSJed Brown BFGS steps: 0 39c4762a1bSJed Brown Scaled gradient steps: 0 40c4762a1bSJed Brown Gradient steps: 0 41c4762a1bSJed Brown KSP termination reasons: 42c4762a1bSJed Brown atol: 0 43c4762a1bSJed Brown rtol: 3 44c4762a1bSJed Brown ctol: 1 45c4762a1bSJed Brown negc: 0 46c4762a1bSJed Brown dtol: 0 47c4762a1bSJed Brown iter: 0 48c4762a1bSJed Brown othr: 0 498cc725e6SPierre Jolivet TaoLineSearch Object: 1 MPI process 50c4762a1bSJed Brown type: more-thuente 51c4762a1bSJed Brown maximum function evaluations=30 52c4762a1bSJed Brown tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 53c4762a1bSJed Brown total number of function evaluations=0 54c4762a1bSJed Brown total number of gradient evaluations=0 55c4762a1bSJed Brown total number of function/gradient evaluations=0 56c4762a1bSJed Brown using variable bounds 571404853cSMatthew G. Knepley Termination reason: CONTINUE_ITERATING 588cc725e6SPierre Jolivet KSP Object: (tao_bnk_) 1 MPI process 59c4762a1bSJed Brown type: stcg 60c4762a1bSJed Brown maximum iterations=10000, initial guess is zero 61c4762a1bSJed Brown tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 62c4762a1bSJed Brown left preconditioning 63c4762a1bSJed Brown using UNPRECONDITIONED norm type for convergence test 648cc725e6SPierre Jolivet PC Object: (tao_bnk_) 1 MPI process 65c4762a1bSJed Brown type: lmvm 660e02354eSStefano Zampini Mat Object: (tao_bnk_pc_lmvm_) 1 MPI process 67c4762a1bSJed Brown type: lmvmbfgs 68c4762a1bSJed Brown rows=48, cols=48 69c4762a1bSJed Brown Max. storage: 5 70c4762a1bSJed Brown Used storage: 4 71c4762a1bSJed Brown Number of updates: 4 72c4762a1bSJed Brown Number of rejects: 0 73c4762a1bSJed Brown Number of resets: 0 7409fb3ddcSToby Isaac J0: 7509fb3ddcSToby Isaac Mat Object: (tao_bnk_pc_lmvm_mat_lmvm_J0_) 1 MPI process 7609fb3ddcSToby Isaac type: diagonal 77c4762a1bSJed Brown rows=48, cols=48 7809fb3ddcSToby Isaac Vec Object: 1 MPI process 7909fb3ddcSToby Isaac type: seq 8009fb3ddcSToby Isaac Rescale type: diagonal 8109fb3ddcSToby Isaac Rescale history: 1 8209fb3ddcSToby Isaac Rescale params: alpha=1., beta=0.5, rho=1. 8309fb3ddcSToby Isaac Rescale convex factor: theta=0.125 84*ecf3d421SBarry Smith linear system matrix, which is also used to construct the preconditioner: 858cc725e6SPierre Jolivet Mat Object: 1 MPI process 86c4762a1bSJed Brown type: seqaij 87c4762a1bSJed Brown rows=40, cols=40 8877433607SBarry Smith total: nonzeros=228, allocated nonzeros=228 89c4762a1bSJed Brown total number of mallocs used during MatSetValues calls=0 90c4762a1bSJed Brown not using I-node routines 91c4762a1bSJed Brown total KSP iterations: 61 92c4762a1bSJed Brown Active Set subset type: subvec 93606f75f6SBarry Smith convergence tolerances: gatol=1e-05, grtol=1e-08, steptol=0., gttol=0. 94c4762a1bSJed Brown Residual in Function/Gradient:=7.77402e-07 95c4762a1bSJed Brown Objective value=1.50566 96c4762a1bSJed Brown total number of iterations=4, (max: 50) 97606f75f6SBarry Smith total number of function/gradient evaluations=15, (max: unlimited) 98c4762a1bSJed Brown total number of Hessian evaluations=5 99c4762a1bSJed Brown Solution converged: ||g(X)|| <= gatol 100