nag_glopt_nlp_pso (e05sbc) Example Program Results Minimization of the Schwefel function. Subject to one linear and two nonlinear constraints. Default Option Queries: Constraint Norm : L1 Maximum Iterations Completed : 1000 DEFAULT Distance Tolerance : 0.0001 1. Solution without using coupled local minimizer. (User-supplied callback confun, first invocation.) (User-supplied callback objfun_schwefel, first invocation.) (User-supplied callback monmod, first invocation.) Algorithm Statistics -------------------- Total complete iterations : 277 Complete iterations since improvement : 1 Total particles converged to xb : 0 Total improvements to global optimum : 117 Total function evaluations : 4222 Total particles re-initialized : 0 Total constraints violated : 0 Solution Status : Target value achieved Known constrained objective optimum : -731.707 Achieved objective value : -731.708 Comparison between the known optimum and the achieved solution. x_target xb 1 -394.15 -394.17 2 -433.48 -433.53 Comparison between scaled constraint violations. c_target cb 1 0.00000 0.00000 2 0.00000 0.00000 3 0.00000 0.00002 2. Solution using coupled local minimizer nag_opt_nlp1_solve (e04ucc). Algorithm Statistics -------------------- Total complete iterations : 4 Complete iterations since improvement : 1 Total particles converged to xb : 0 Total improvements to global optimum : 7 Total function evaluations : 155 Total particles re-initialized : 0 Total constraints violated : 0 Solution Status : Target value achieved Known constrained objective optimum : -731.707 Achieved objective value : -731.706 Comparison between the known optimum and the achieved solution. x_target xb 1 -394.15 -394.15 2 -433.48 -433.49 Comparison between scaled constraint violations. c_target cb 1 0.00000 0.00000 2 0.00000 0.00000 3 0.00000 0.00000