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 Brown iter = 0, Function value 1.57687, Residual: 0.447462 7c4762a1bSJed Brown iter = 1, Function value 1.53574, Residual: 0.222622 8c4762a1bSJed Brown iter = 2, Function value 1.51391, Residual: 0.187842 9c4762a1bSJed Brown iter = 3, Function value 1.51012, Residual: 0.110361 10c4762a1bSJed Browniter = 1, Function value 1.50567, Residual: 0.00326476 11c4762a1bSJed Brown iter = 0, Function value 1.50567, Residual: 0.00326476 12c4762a1bSJed Brown iter = 1, Function value 1.50567, Residual: 0.00332264 1309fb3ddcSToby Isaac iter = 2, Function value 1.50567, Residual: 0.00464672 1409fb3ddcSToby Isaac iter = 3, Function value 1.50566, Residual: 0.00127873 1509fb3ddcSToby Isaaciter = 2, Function value 1.50566, Residual: 1.26759e-06 168cc725e6SPierre JolivetTao Object: 1 MPI process 17c4762a1bSJed Brown type: bntr 18b17ffb64SBarry Smith Tao Object: (tao_bnk_cg_) 1 MPI process 19b17ffb64SBarry Smith type: bncg 20b17ffb64SBarry Smith CG Type: ssml_bfgs 21b17ffb64SBarry Smith Skipped Stepdirection Updates: 1 22b17ffb64SBarry Smith Scaled gradient steps: 0 23b17ffb64SBarry Smith Pure gradient steps: 0 24b17ffb64SBarry Smith Not a descent direction: 0 25b17ffb64SBarry Smith Line search fails: 0 26b17ffb64SBarry Smith Mat Object: (tao_bnk_cg_tao_bncg_) 1 MPI process 27b17ffb64SBarry Smith type: lmvmdiagbroyden 28b17ffb64SBarry Smith rows=48, cols=48 29b17ffb64SBarry Smith Max. storage: 1 30b17ffb64SBarry Smith Used storage: 1 31b17ffb64SBarry Smith Number of updates: 3 32b17ffb64SBarry Smith Number of rejects: 0 33b17ffb64SBarry Smith Number of resets: 2 3409fb3ddcSToby Isaac J0: 3509fb3ddcSToby Isaac Mat Object: (tao_bnk_cg_tao_bncg_mat_lmvm_J0_) 1 MPI process 3609fb3ddcSToby Isaac type: diagonal 3709fb3ddcSToby Isaac rows=48, cols=48 3809fb3ddcSToby Isaac Vec Object: 1 MPI process 3909fb3ddcSToby Isaac type: seq 4009fb3ddcSToby Isaac Rescale type: diagonal 4109fb3ddcSToby Isaac Rescale history: 1 4209fb3ddcSToby Isaac Rescale params: alpha=1., beta=0.5, rho=1. 4309fb3ddcSToby Isaac Rescale convex factor: theta=0. 44b17ffb64SBarry Smith TaoLineSearch Object: (tao_bnk_cg_) 1 MPI process 45b17ffb64SBarry Smith type: more-thuente 46b17ffb64SBarry Smith maximum function evaluations=30 47b17ffb64SBarry Smith tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 48b17ffb64SBarry Smith total number of function evaluations=0 49b17ffb64SBarry Smith total number of gradient evaluations=0 50b17ffb64SBarry Smith total number of function/gradient evaluations=1 51b17ffb64SBarry Smith using variable bounds 521404853cSMatthew G. Knepley Termination reason: SUCCESS 53b17ffb64SBarry Smith Active Set subset type: subvec 54606f75f6SBarry Smith convergence tolerances: gatol=1e-05, grtol=1e-08, steptol=0., gttol=0. 5509fb3ddcSToby Isaac Residual in Function/Gradient:=0.00127873 56b17ffb64SBarry Smith Objective value=1.50566 57b17ffb64SBarry Smith total number of iterations=3, (max: 3) 5809fb3ddcSToby Isaac total number of function/gradient evaluations=7, (max: 4000) 59606f75f6SBarry Smith Solver failed: Maximum Iterations 60c4762a1bSJed Brown Rejected BFGS updates: 0 61c4762a1bSJed Brown CG steps: 6 62c4762a1bSJed Brown Newton steps: 2 63c4762a1bSJed Brown BFGS steps: 0 64c4762a1bSJed Brown Scaled gradient steps: 0 65c4762a1bSJed Brown Gradient steps: 0 66c4762a1bSJed Brown KSP termination reasons: 67c4762a1bSJed Brown atol: 0 68c4762a1bSJed Brown rtol: 2 69c4762a1bSJed Brown ctol: 0 70c4762a1bSJed Brown negc: 0 71c4762a1bSJed Brown dtol: 0 72c4762a1bSJed Brown iter: 0 73c4762a1bSJed Brown othr: 0 748cc725e6SPierre Jolivet TaoLineSearch Object: 1 MPI process 75c4762a1bSJed Brown type: more-thuente 76c4762a1bSJed Brown maximum function evaluations=30 77c4762a1bSJed Brown tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 78c4762a1bSJed Brown total number of function evaluations=0 79c4762a1bSJed Brown total number of gradient evaluations=0 80c4762a1bSJed Brown total number of function/gradient evaluations=0 81c4762a1bSJed Brown using variable bounds 821404853cSMatthew G. Knepley Termination reason: CONTINUE_ITERATING 838cc725e6SPierre Jolivet KSP Object: (tao_bnk_) 1 MPI process 84c4762a1bSJed Brown type: stcg 85c4762a1bSJed Brown maximum iterations=10000, initial guess is zero 86c4762a1bSJed Brown tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 87c4762a1bSJed Brown left preconditioning 88c4762a1bSJed Brown using UNPRECONDITIONED norm type for convergence test 898cc725e6SPierre Jolivet PC Object: (tao_bnk_) 1 MPI process 90c4762a1bSJed Brown type: lmvm 910e02354eSStefano Zampini Mat Object: (tao_bnk_pc_lmvm_) 1 MPI process 92c4762a1bSJed Brown type: lmvmbfgs 93c4762a1bSJed Brown rows=48, cols=48 94c4762a1bSJed Brown Max. storage: 5 95c4762a1bSJed Brown Used storage: 2 96c4762a1bSJed Brown Number of updates: 2 97c4762a1bSJed Brown Number of rejects: 0 98c4762a1bSJed Brown Number of resets: 0 9909fb3ddcSToby Isaac J0: 10009fb3ddcSToby Isaac Mat Object: (tao_bnk_pc_lmvm_mat_lmvm_J0_) 1 MPI process 10109fb3ddcSToby Isaac type: diagonal 102c4762a1bSJed Brown rows=48, cols=48 10309fb3ddcSToby Isaac Vec Object: 1 MPI process 10409fb3ddcSToby Isaac type: seq 10509fb3ddcSToby Isaac Rescale type: diagonal 10609fb3ddcSToby Isaac Rescale history: 1 10709fb3ddcSToby Isaac Rescale params: alpha=1., beta=0.5, rho=1. 10809fb3ddcSToby Isaac Rescale convex factor: theta=0.125 109*ecf3d421SBarry Smith linear system matrix, which is also used to construct the preconditioner: 1108cc725e6SPierre Jolivet Mat Object: 1 MPI process 111c4762a1bSJed Brown type: seqaij 112c4762a1bSJed Brown rows=40, cols=40 11377433607SBarry Smith total: nonzeros=228, allocated nonzeros=228 114c4762a1bSJed Brown total number of mallocs used during MatSetValues calls=0 115c4762a1bSJed Brown not using I-node routines 116c4762a1bSJed Brown total KSP iterations: 39 117c4762a1bSJed Brown Active Set subset type: subvec 118606f75f6SBarry Smith convergence tolerances: gatol=1e-05, grtol=1e-08, steptol=0., gttol=0. 11909fb3ddcSToby Isaac Residual in Function/Gradient:=1.26759e-06 120c4762a1bSJed Brown Objective value=1.50566 121c4762a1bSJed Brown total number of iterations=2, (max: 50) 12209fb3ddcSToby Isaac total number of function/gradient evaluations=25, (max: unlimited) 123c4762a1bSJed Brown total number of Hessian evaluations=3 124c4762a1bSJed Brown Solution converged: ||g(X)|| <= gatol 125