1Tao Object: 1 MPI process 2 type: brgn 3 Regularizer weight: 0.0001 4 BRGN Regularization Type: l1dict 5 L1 smooth epsilon: 1e-06 6 Tao Object: (tao_brgn_subsolver_) 1 MPI process 7 type: bnls 8 Tao Object: (tao_brgn_subsolver_tao_bnk_cg_) 1 MPI process 9 type: bncg 10 CG Type: ssml_bfgs 11 Skipped Stepdirection Updates: 0 12 Scaled gradient steps: 0 13 Pure gradient steps: 0 14 Not a descent direction: 0 15 Line search fails: 0 16 Matrix has not been preallocated yet 17 TaoLineSearch Object: (tao_brgn_subsolver_tao_bnk_cg_) 1 MPI process 18 type: more-thuente 19 maximum function evaluations=30 20 tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 21 total number of function evaluations=0 22 total number of gradient evaluations=0 23 total number of function/gradient evaluations=0 24 Termination reason: CONTINUE_ITERATING 25 convergence tolerances: gatol=1e-08, grtol=1e-08, steptol=0., gttol=0. 26 Residual in Function/Gradient:=0. 27 Objective value=0. 28 total number of iterations=0, (max: 2000) 29 Solver never run 30 Rejected BFGS updates: 0 31 CG steps: 0 32 Newton steps: 18 33 BFGS steps: 1 34 Scaled gradient steps: 0 35 Gradient steps: 0 36 KSP termination reasons: 37 atol: 0 38 rtol: 6 39 ctol: 13 40 negc: 0 41 dtol: 0 42 iter: 0 43 othr: 0 44 TaoLineSearch Object: (tao_brgn_subsolver_) 1 MPI process 45 type: more-thuente 46 maximum function evaluations=30 47 tolerances: ftol=0.0001, rtol=1e-10, gtol=0.9 48 total number of function evaluations=0 49 total number of gradient evaluations=0 50 total number of function/gradient evaluations=1 51 Termination reason: SUCCESS 52 KSP Object: (tao_brgn_subsolver_tao_bnk_) 1 MPI process 53 type: stcg 54 maximum iterations=10000, initial guess is zero 55 tolerances: relative=1e-05, absolute=1e-50, divergence=10000. 56 left preconditioning 57 using UNPRECONDITIONED norm type for convergence test 58 PC Object: (tao_brgn_subsolver_tao_bnk_) 1 MPI process 59 type: lmvm 60 Mat Object: (tao_brgn_subsolver_tao_bnk_pc_lmvm_) 1 MPI process 61 type: lmvmbfgs 62 rows=5, cols=5 63 Max. storage: 5 64 Used storage: 5 65 Number of updates: 18 66 Number of rejects: 0 67 Number of resets: 0 68 J0: 69 Mat Object: (tao_brgn_subsolver_tao_bnk_pc_lmvm_mat_lmvm_J0_) 1 MPI process 70 type: diagonal 71 rows=5, cols=5 72 Vec Object: 1 MPI process 73 type: seq 74 Rescale type: diagonal 75 Rescale history: 1 76 Rescale params: alpha=1., beta=0.5, rho=1. 77 Rescale convex factor: theta=0.125 78 linear system matrix, which is also used to construct the preconditioner: 79 Mat Object: 1 MPI process 80 type: shell 81 rows=5, cols=5 82 total KSP iterations: 60 83 convergence tolerances: gatol=1e-06, grtol=1e-08, steptol=0., gttol=0. 84 Residual in Function/Gradient:=7.45152e-07 85 Objective value=0.000199924 86 total number of iterations=19, (max: 10000) 87 total number of function evaluations=96, (max: unlimited) 88 total number of function/gradient evaluations=96, (max: unlimited) 89 total number of Hessian evaluations=19 90 total number of Jacobian evaluations=115 91 Solution converged: ||g(X)|| <= gatol 92 convergence tolerances: gatol=1e-06, grtol=1e-08, steptol=0., gttol=0. 93 Residual in Function/Gradient:=0. 94 Objective value=0.000199924 95 total number of iterations=19, (max: 10000) 96 total number of function evaluations=96, (max: unlimited) 97 total number of function/gradient evaluations=96, (max: unlimited) 98 total number of Hessian evaluations=19 99 Solution converged: ||g(X)|| <= gatol 100