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 Brown iter = 0, Function value 1.67039, Residual: 0.47529 6c4762a1bSJed Brown iter = 0, Function value 1.57666, Residual: 0.422933 7c4762a1bSJed Brown iter = 1, Function value 1.5357, Residual: 0.235251 8c4762a1bSJed Brown iter = 2, Function value 1.52086, Residual: 0.15742 9c4762a1bSJed Brown iter = 3, Function value 1.51361, Residual: 0.261202 10c4762a1bSJed Browniter = 1, Function value 1.50846, Residual: 0.0892734 11c4762a1bSJed Brown iter = 0, Function value 1.50846, Residual: 0.0892734 12c4762a1bSJed Brown iter = 1, Function value 1.50774, Residual: 0.122322 1309fb3ddcSToby Isaac iter = 2, Function value 1.50673, Residual: 0.0503806 1409fb3ddcSToby Isaac iter = 3, Function value 1.50629, Residual: 0.0253068 1509fb3ddcSToby Isaaciter = 2, Function value 1.50583, Residual: 0.0192543 1609fb3ddcSToby Isaac iter = 0, Function value 1.50583, Residual: 0.0192543 1709fb3ddcSToby Isaac iter = 1, Function value 1.50578, Residual: 0.0190568 1809fb3ddcSToby Isaac iter = 2, Function value 1.50573, Residual: 0.00800704 1909fb3ddcSToby Isaac iter = 3, Function value 1.50569, Residual: 0.00748069 2009fb3ddcSToby Isaaciter = 3, Function value 1.50566, Residual: 6.63642e-05 2109fb3ddcSToby Isaac iter = 0, Function value 1.50566, Residual: 6.63642e-05 2209fb3ddcSToby Isaac iter = 1, Function value 1.50566, Residual: 8.18996e-05 2309fb3ddcSToby Isaac iter = 2, Function value 1.50566, Residual: 2.45135e-05 2409fb3ddcSToby Isaac iter = 3, Function value 1.50566, Residual: 1.5701e-05 25c4762a1bSJed Browniter = 4, Function value 1.50566, Residual: < 1.0e-6 268cc725e6SPierre JolivetTao Object: 1 MPI process 27c4762a1bSJed Brown type: bnls 28b17ffb64SBarry Smith Tao Object: (tao_bnk_cg_) 1 MPI process 29b17ffb64SBarry Smith type: bncg 30b17ffb64SBarry Smith CG Type: ssml_bfgs 31b17ffb64SBarry Smith Skipped Stepdirection Updates: 1 32b17ffb64SBarry Smith Scaled gradient steps: 0 33b17ffb64SBarry Smith Pure gradient steps: 0 34b17ffb64SBarry Smith Not a descent direction: 0 35b17ffb64SBarry Smith Line search fails: 0 36b17ffb64SBarry Smith Mat Object: (tao_bnk_cg_tao_bncg_) 1 MPI process 37b17ffb64SBarry Smith type: lmvmdiagbroyden 38b17ffb64SBarry Smith rows=48, cols=48 39b17ffb64SBarry Smith Max. storage: 1 40b17ffb64SBarry Smith Used storage: 1 41b17ffb64SBarry Smith Number of updates: 8 42b17ffb64SBarry Smith Number of rejects: 0 43b17ffb64SBarry Smith Number of resets: 4 4409fb3ddcSToby Isaac J0: 4509fb3ddcSToby Isaac Mat Object: (tao_bnk_cg_tao_bncg_mat_lmvm_J0_) 1 MPI process 4609fb3ddcSToby Isaac type: diagonal 4709fb3ddcSToby Isaac rows=48, cols=48 4809fb3ddcSToby Isaac Vec Object: 1 MPI process 4909fb3ddcSToby Isaac type: seq 5009fb3ddcSToby Isaac Rescale type: diagonal 5109fb3ddcSToby Isaac Rescale history: 1 5209fb3ddcSToby Isaac Rescale params: alpha=1., beta=0.5, rho=1. 5309fb3ddcSToby Isaac Rescale convex factor: theta=0. 54b17ffb64SBarry Smith TaoLineSearch Object: (tao_bnk_cg_) 1 MPI process 55b17ffb64SBarry Smith type: more-thuente 56b17ffb64SBarry Smith maximum function evaluations=30 57b17ffb64SBarry Smith tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 58b17ffb64SBarry Smith total number of function evaluations=0 59b17ffb64SBarry Smith total number of gradient evaluations=0 60b17ffb64SBarry Smith total number of function/gradient evaluations=1 61b17ffb64SBarry Smith using variable bounds 621404853cSMatthew G. Knepley Termination reason: SUCCESS 63b17ffb64SBarry Smith Active Set subset type: subvec 64606f75f6SBarry Smith convergence tolerances: gatol=1e-05, grtol=1e-08, steptol=0., gttol=0. 6509fb3ddcSToby Isaac Residual in Function/Gradient:=1.5701e-05 66b17ffb64SBarry Smith Objective value=1.50566 67b17ffb64SBarry Smith total number of iterations=3, (max: 3) 68b17ffb64SBarry Smith total number of function/gradient evaluations=6, (max: 4000) 69606f75f6SBarry Smith Solver failed: Maximum Iterations 70c4762a1bSJed Brown Rejected BFGS updates: 0 71c4762a1bSJed Brown CG steps: 12 72c4762a1bSJed Brown Newton steps: 3 73c4762a1bSJed Brown BFGS steps: 0 74c4762a1bSJed Brown Scaled gradient steps: 1 75c4762a1bSJed Brown Gradient steps: 0 76c4762a1bSJed Brown KSP termination reasons: 77c4762a1bSJed Brown atol: 0 78c4762a1bSJed Brown rtol: 3 79c4762a1bSJed Brown ctol: 1 80c4762a1bSJed Brown negc: 0 81c4762a1bSJed Brown dtol: 0 82c4762a1bSJed Brown iter: 0 83c4762a1bSJed Brown othr: 0 848cc725e6SPierre Jolivet TaoLineSearch Object: 1 MPI process 85c4762a1bSJed Brown type: more-thuente 86c4762a1bSJed Brown maximum function evaluations=30 87c4762a1bSJed Brown tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 88c4762a1bSJed Brown total number of function evaluations=0 89c4762a1bSJed Brown total number of gradient evaluations=0 90c4762a1bSJed Brown total number of function/gradient evaluations=1 91c4762a1bSJed Brown using variable bounds 921404853cSMatthew G. Knepley Termination reason: SUCCESS 938cc725e6SPierre Jolivet KSP Object: (tao_bnk_) 1 MPI process 94c4762a1bSJed Brown type: stcg 95c4762a1bSJed Brown maximum iterations=10000, initial guess is zero 96c4762a1bSJed Brown tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 97c4762a1bSJed Brown left preconditioning 98c4762a1bSJed Brown using UNPRECONDITIONED norm type for convergence test 998cc725e6SPierre Jolivet PC Object: (tao_bnk_) 1 MPI process 100c4762a1bSJed Brown type: lmvm 1010e02354eSStefano Zampini Mat Object: (tao_bnk_pc_lmvm_) 1 MPI process 102c4762a1bSJed Brown type: lmvmbfgs 103c4762a1bSJed Brown rows=48, cols=48 104c4762a1bSJed Brown Max. storage: 5 105c4762a1bSJed Brown Used storage: 3 106c4762a1bSJed Brown Number of updates: 3 107c4762a1bSJed Brown Number of rejects: 0 108c4762a1bSJed Brown Number of resets: 1 10909fb3ddcSToby Isaac J0: 11009fb3ddcSToby Isaac Mat Object: (tao_bnk_pc_lmvm_mat_lmvm_J0_) 1 MPI process 11109fb3ddcSToby Isaac type: diagonal 112c4762a1bSJed Brown rows=48, cols=48 11309fb3ddcSToby Isaac Vec Object: 1 MPI process 11409fb3ddcSToby Isaac type: seq 11509fb3ddcSToby Isaac Rescale type: diagonal 11609fb3ddcSToby Isaac Rescale history: 1 11709fb3ddcSToby Isaac Rescale params: alpha=1., beta=0.5, rho=1. 11809fb3ddcSToby Isaac Rescale convex factor: theta=0.125 119*ecf3d421SBarry Smith linear system matrix, which is also used to construct the preconditioner: 1208cc725e6SPierre Jolivet Mat Object: 1 MPI process 121c4762a1bSJed Brown type: seqaij 122c4762a1bSJed Brown rows=40, cols=40 12377433607SBarry Smith total: nonzeros=228, allocated nonzeros=228 124c4762a1bSJed Brown total number of mallocs used during MatSetValues calls=0 125c4762a1bSJed Brown not using I-node routines 12609fb3ddcSToby Isaac total KSP iterations: 60 127c4762a1bSJed Brown Active Set subset type: subvec 128606f75f6SBarry Smith convergence tolerances: gatol=1e-05, grtol=1e-08, steptol=0., gttol=0. 12909fb3ddcSToby Isaac Residual in Function/Gradient:=1.51576e-08 130c4762a1bSJed Brown Objective value=1.50566 131c4762a1bSJed Brown total number of iterations=4, (max: 50) 132606f75f6SBarry Smith total number of function/gradient evaluations=35, (max: unlimited) 133c4762a1bSJed Brown total number of Hessian evaluations=4 134c4762a1bSJed Brown Solution converged: ||g(X)|| <= gatol 135