diff options
Diffstat (limited to 'newstructure/sci_gateway/cpp/bonmin.opt')
| -rw-r--r-- | newstructure/sci_gateway/cpp/bonmin.opt | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/newstructure/sci_gateway/cpp/bonmin.opt b/newstructure/sci_gateway/cpp/bonmin.opt new file mode 100644 index 0000000..72fc254 --- /dev/null +++ b/newstructure/sci_gateway/cpp/bonmin.opt @@ -0,0 +1,156 @@ + +# registering category: Algorithm choice + +bonmin.algorithm B-BB #Choice of the algorithm. + +# registering category: Branch-and-bound options + +bonmin.allowable_fraction_gap 0 #Specify the value of relative gap under which the algorithm stops. +bonmin.allowable_gap 0 #Specify the value of absolute gap under which the algorithm stops. +bonmin.cutoff 1e+100 #Specify cutoff value. +bonmin.cutoff_decr 1e-05 #Specify cutoff decrement. +bonmin.enable_dynamic_nlp no #Enable dynamic linear and quadratic rows addition in nlp +bonmin.integer_tolerance 1e-06 #Set integer tolerance. +bonmin.iteration_limit 2147483647 #Set the cumulative maximum number of iteration in the algorithm used to process nodes continuous relaxations in the branch-and-bound. +bonmin.nlp_failure_behavior stop #Set the behavior when an NLP or a series of NLP are unsolved by Ipopt (we call unsolved an NLP for which Ipopt is not able to guarantee optimality within the specified tolerances). +bonmin.node_comparison best-bound #Choose the node selection strategy. +bonmin.node_limit 2147483647 #Set the maximum number of nodes explored in the branch-and-bound search. +bonmin.num_cut_passes 1 #Set the maximum number of cut passes at regular nodes of the branch-and-cut. +bonmin.num_cut_passes_at_root 20 #Set the maximum number of cut passes at regular nodes of the branch-and-cut. +bonmin.number_before_trust 8 #Set the number of branches on a variable before its pseudo costs are to be believed in dynamic strong branching. +bonmin.number_strong_branch 20 #Choose the maximum number of variables considered for strong branching. +bonmin.random_generator_seed 0 #Set seed for random number generator (a value of -1 sets seeds to time since Epoch). +bonmin.read_solution_file no #Read a file with the optimal solution to test if algorithms cuts it. +bonmin.solution_limit 2147483647 #Abort after that much integer feasible solution have been found by algorithm +bonmin.sos_constraints enable #Whether or not to activate SOS constraints. +bonmin.time_limit 1e+10 #Set the global maximum computation time (in secs) for the algorithm. +bonmin.tree_search_strategy probed-dive #Pick a strategy for traversing the tree +bonmin.variable_selection strong-branching #Chooses variable selection strategy + +# registering category: ECP cuts generation + +bonmin.ecp_abs_tol 1e-06 #Set the absolute termination tolerance for ECP rounds. +bonmin.ecp_max_rounds 5 #Set the maximal number of rounds of ECP cuts. +bonmin.ecp_probability_factor 10 #Factor appearing in formula for skipping ECP cuts. +bonmin.ecp_rel_tol 0 #Set the relative termination tolerance for ECP rounds. +bonmin.filmint_ecp_cuts 0 #Specify the frequency (in terms of nodes) at which some a la filmint ecp cuts are generated. + +# registering category: Feasibility checker using OA cuts + +bonmin.feas_check_cut_types outer-approx #Choose the type of cuts generated when an integer feasible solution is found +bonmin.feas_check_discard_policy detect-cycles #How cuts from feasibility checker are discarded +bonmin.generate_benders_after_so_many_oa 5000 #Specify that after so many oa cuts have been generated Benders cuts should be generated instead. + +# registering category: MILP Solver + +bonmin.cpx_parallel_strategy 0 #Strategy of parallel search mode in CPLEX. +bonmin.milp_solver Cbc_D #Choose the subsolver to solve MILP sub-problems in OA decompositions. +bonmin.milp_strategy solve_to_optimality #Choose a strategy for MILPs. +bonmin.number_cpx_threads 0 #Set number of threads to use with cplex. + +# registering category: MILP cutting planes in hybrid algorithm + +bonmin.2mir_cuts 0 #Frequency (in terms of nodes) for generating 2-MIR cuts in branch-and-cut +bonmin.Gomory_cuts -5 #Frequency (in terms of nodes) for generating Gomory cuts in branch-and-cut. +bonmin.clique_cuts -5 #Frequency (in terms of nodes) for generating clique cuts in branch-and-cut +bonmin.cover_cuts 0 #Frequency (in terms of nodes) for generating cover cuts in branch-and-cut +bonmin.flow_cover_cuts -5 #Frequency (in terms of nodes) for generating flow cover cuts in branch-and-cut +bonmin.lift_and_project_cuts 0 #Frequency (in terms of nodes) for generating lift-and-project cuts in branch-and-cut +bonmin.mir_cuts -5 #Frequency (in terms of nodes) for generating MIR cuts in branch-and-cut +bonmin.reduce_and_split_cuts 0 #Frequency (in terms of nodes) for generating reduce-and-split cuts in branch-and-cut + +# registering category: NLP interface + +bonmin.nlp_solver Ipopt #Choice of the solver for local optima of continuous NLP's +bonmin.warm_start none #Select the warm start method + +# registering category: NLP solution robustness + +bonmin.max_consecutive_failures 10 #(temporarily removed) Number $n$ of consecutive unsolved problems before aborting a branch of the tree. +bonmin.max_random_point_radius 100000 #Set max value r for coordinate of a random point. +bonmin.num_iterations_suspect -1 #Number of iterations over which a node is considered "suspect" (for debugging purposes only, see detailed documentation). +bonmin.num_retry_unsolved_random_point 0 #Number $k$ of times that the algorithm will try to resolve an unsolved NLP with a random starting point (we call unsolved an NLP for which Ipopt is not able to guarantee optimality within the specified tolerances). +bonmin.random_point_perturbation_interval 1 #Amount by which starting point is perturbed when choosing to pick random point by perturbing starting point +bonmin.random_point_type Jon #method to choose a random starting point +bonmin.resolve_on_small_infeasibility 0 #If a locally infeasible problem is infeasible by less than this, resolve it with initial starting point. + +# registering category: NLP solves in hybrid algorithm (B-Hyb) + +bonmin.nlp_solve_frequency 10 #Specify the frequency (in terms of nodes) at which NLP relaxations are solved in B-Hyb. +bonmin.nlp_solve_max_depth 10 #Set maximum depth in the tree at which NLP relaxations are solved in B-Hyb. +bonmin.nlp_solves_per_depth 1e+100 #Set average number of nodes in the tree at which NLP relaxations are solved in B-Hyb for each depth. + +# registering category: Nonconvex problems + +bonmin.coeff_var_threshold 0.1 #Coefficient of variation threshold (for dynamic definition of cutoff_decr). +bonmin.dynamic_def_cutoff_decr no #Do you want to define the parameter cutoff_decr dynamically? +bonmin.first_perc_for_cutoff_decr -0.02 #The percentage used when, the coeff of variance is smaller than the threshold, to compute the cutoff_decr dynamically. +bonmin.max_consecutive_infeasible 0 #Number of consecutive infeasible subproblems before aborting a branch. +bonmin.num_resolve_at_infeasibles 0 #Number $k$ of tries to resolve an infeasible node (other than the root) of the tree with different starting point. +bonmin.num_resolve_at_node 0 #Number $k$ of tries to resolve a node (other than the root) of the tree with different starting point. +bonmin.num_resolve_at_root 0 #Number $k$ of tries to resolve the root node with different starting points. +bonmin.second_perc_for_cutoff_decr -0.05 #The percentage used when, the coeff of variance is greater than the threshold, to compute the cutoff_decr dynamically. + +# registering category: Outer Approximation Decomposition (B-OA) + +bonmin.oa_decomposition no #If yes do initial OA decomposition + +# registering category: Outer Approximation cuts generation + +bonmin.add_only_violated_oa no #Do we add all OA cuts or only the ones violated by current point? +bonmin.oa_cuts_scope global #Specify if OA cuts added are to be set globally or locally valid +bonmin.oa_rhs_relax 1e-08 #Value by which to relax OA cut +bonmin.tiny_element 1e-08 #Value for tiny element in OA cut +bonmin.very_tiny_element 1e-17 #Value for very tiny element in OA cut + +# registering category: Output + +bonmin.bb_log_interval 100 #Interval at which node level output is printed. +bonmin.bb_log_level 1 #specify main branch-and-bound log level. +bonmin.file_print_level 5 #Verbosity level for output file. +bonmin.file_solution no #Write a file bonmin.sol with the solution +bonmin.fp_log_frequency 100 #display an update on lower and upper bounds in FP every n seconds +bonmin.fp_log_level 1 #specify FP iterations log level. +bonmin.inf_pr_output original #Determines what value is printed in the "inf_pr" output column. +bonmin.lp_log_level 0 #specify LP log level. +bonmin.milp_log_level 0 #specify MILP solver log level. +bonmin.nlp_log_at_root 0 # Specify a different log level for root relaxation. +bonmin.nlp_log_level 1 #specify NLP solver interface log level (independent from ipopt print_level). +bonmin.oa_cuts_log_level 0 #level of log when generating OA cuts. +bonmin.oa_log_frequency 100 #display an update on lower and upper bounds in OA every n seconds +bonmin.oa_log_level 1 #specify OA iterations log level. +bonmin.option_file_name #File name of options file (to overwrite default). +bonmin.output_file #File name of desired output file (leave unset for no file output). +bonmin.print_frequency_iter 1 #Determines at which iteration frequency the summarizing iteration output line should be printed. +bonmin.print_frequency_time 0 #Determines at which time frequency the summarizing iteration output line should be printed. +bonmin.print_info_string no #Enables printing of additional info string at end of iteration output. +bonmin.print_level 5 #Output verbosity level. +bonmin.print_options_documentation no #Switch to print all algorithmic options. +bonmin.print_timing_statistics no #Switch to print timing statistics. +bonmin.print_user_options no #Print all options set by the user. +bonmin.replace_bounds no #Indicates if all variable bounds should be replaced by inequality constraints +bonmin.skip_finalize_solution_call no #Indicates if call to NLP::FinalizeSolution after optimization should be suppressed + +# registering category: Primal Heuristics + +bonmin.feasibility_pump_objective_norm 1 #Norm of feasibility pump objective function +bonmin.fp_pass_infeasible no #Say whether feasibility pump should claim to converge or not +bonmin.heuristic_RINS no #if yes runs the RINS heuristic +bonmin.heuristic_dive_MIP_fractional no #if yes runs the Dive MIP Fractional heuristic +bonmin.heuristic_dive_MIP_vectorLength no #if yes runs the Dive MIP VectorLength heuristic +bonmin.heuristic_dive_fractional no #if yes runs the Dive Fractional heuristic +bonmin.heuristic_dive_vectorLength no #if yes runs the Dive VectorLength heuristic +bonmin.heuristic_feasibility_pump no #whether the heuristic feasibility pump should be used +bonmin.pump_for_minlp no #whether to run the feasibility pump heuristic for MINLP + +# registering category: Strong branching setup + +bonmin.candidate_sort_criterion best-ps-cost #Choice of the criterion to choose candidates in strong-branching +bonmin.maxmin_crit_have_sol 0.1 #Weight towards minimum in of lower and upper branching estimates when a solution has been found. +bonmin.maxmin_crit_no_sol 0.7 #Weight towards minimum in of lower and upper branching estimates when no solution has been found yet. +bonmin.min_number_strong_branch 0 #Sets minimum number of variables for strong branching (overriding trust) +bonmin.number_before_trust_list 0 #Set the number of branches on a variable before its pseudo costs are to be believed during setup of strong branching candidate list. +bonmin.number_look_ahead 0 #Sets limit of look-ahead strong-branching trials +bonmin.number_strong_branch_root 2147483647 #Maximum number of variables considered for strong branching in root node. +bonmin.setup_pseudo_frac 0.5 #Proportion of strong branching list that has to be taken from most-integer-infeasible list. +bonmin.trust_strong_branching_for_pseudo_cost yes #Whether or not to trust strong branching results for updating pseudo costs. |