[Bonmin] stopping Bonmin
Giuseppe Aprea
giuseppe.aprea at gmail.com
Sat Jul 4 08:06:27 EDT 2009
HI,
I am sorry for all these messages.
Still solving a MINLP with B-BB. My problem now is why both
bonmin.time_limit 1
bonmin.iteration_limit 10
seem not to work even if put together?. For the Time limit I am not
sure if we are talking about
cputime or whatever but when I stopped (ctrl-c) the computation all
values where above my limit
(see below). I have read the documentation and it seems that just one
of the two limits should
have worked. I also added the "\n" character at the and of the last
line and the prefix "bonmin.".
Can someone, please, suggest me a way to stop the computation?
Many many thanks
giuseppe
WARNING: Tried to set option "print_level" to a value of "1",
but the previous value is set to disallow clobbering.
The setting will remain as: "print_level 6"
List of options:
Name Value # times used
bonmin.algorithm = B-BB 1
bonmin.bb_log_level = 4 2
bonmin.iteration_limit = 10 1
bonmin.number_before_trust = 1 0
bonmin.number_strong_branch = 1000 0
bonmin.time_limit = 1 1
bonmin.variable_selection = nlp-strong-branching 0
expect_infeasible_problem = yes 2
gamma_phi = 1e-08 1
gamma_theta = 0.0001 1
mu_oracle = probing 2
mu_strategy = adaptive 2
print_level = 6 3
print_solution = yes 1
required_infeasibility_reduction = 0.1 0
******************************************************************************
This program contains Ipopt, a library for large-scale nonlinear optimization.
Ipopt is released as open source code under the Common Public License (CPL).
For more information visit http://projects.coin-or.org/Ipopt
******************************************************************************
NOTE: You are using Ipopt by default with the MUMPS linear solver.
Other linear solvers might be more efficient (see Ipopt documentation).
This is Ipopt version 3.6stable, running with linear solver mumps.
Number of nonzeros in equality constraint Jacobian...: 10581
Number of nonzeros in inequality constraint Jacobian.: 1684
Number of nonzeros in Lagrangian Hessian.............: 1440
Scaling parameter for objective function = 1.000000e+00
Equality constraints are scaled with smallest scaling parameter is 1.000000e-01
Inequality constraints are not scaled.
Moved initial values of x sufficiently inside the bounds.
....................................................................................
....................................................................................
....................................................................................
....................................................................................
....................................................................................
....................................................................................
....................................................................................
....................................................................................
....................................................................................
....................................................................................
**************************************************
*** Update HessianMatrix for Iteration 138:
**************************************************
**************************************************
*** Summary of Iteration: 138:
**************************************************
iter objective inf_pr inf_du lg(mu) ||d|| lg(rg) alpha_du alpha_pr ls
138 -6.7209529e+01 3.64e-02 2.18e+06 1.0 9.05e-01 5.4 1.81e-01
1.07e-01h 1 Fl
**************************************************
*** Beginning Iteration 138 from the following point:
**************************************************
Current barrier parameter mu = 1.0903679534902398e+01
Current fraction-to-the-boundary parameter tau = 9.8999999999999999e-01
||curr_x||_inf = 1.9661942024696255e+05
||curr_s||_inf = 1.2178079283934749e+04
||curr_y_c||_inf = 2.6443132699285839e+07
||curr_y_d||_inf = 1.2624137038804408e+07
||curr_z_L||_inf = 5.3355026600588057e+06
||curr_z_U||_inf = 2.2719144233394220e+07
||curr_v_L||_inf = 1.0903812213355341e-08
||curr_v_U||_inf = 1.0900972670818821e+07
***Current NLP Values for Iteration 138:
(scaled) (unscaled)
Objective...............: -6.7209528968436345e+01 -6.7209528968436345e+01
Dual infeasibility......: 2.1777462890798487e+06 2.1777462890798487e+06
Constraint violation....: 3.6405018980666198e-02 9.8824327150319968e-02
Complementarity.........: 1.8107150690355127e+02 1.8107150690355127e+02
Overall NLP error.......: 6.6624480905292455e+02 2.1777462890798487e+06
**************************************************
*** Update Barrier Parameter for Iteration 138:
**************************************************
Remaining in fixed mu mode.
Barrier Parameter: 1.090368e+01
**************************************************
*** Solving the Primal Dual System for Iteration 138:
**************************************************
Number of doubles for MUMPS to hold factorization (INFO(9)) = 253214
Number of integers for MUMPS to hold factorization (INFO(10)) = 142227
In MumpsSolverInterface::Factorization: negevals_ = 3903, but
numberOfNegEVals = 3353
Factorization failed with retval = 2
Number of doubles for MUMPS to hold factorization (INFO(9)) = 129365
Number of integers for MUMPS to hold factorization (INFO(10)) = 138707
In MumpsSolverInterface::Factorization: negevals_ = 3354, but
numberOfNegEVals = 3353
Factorization failed with retval = 2
Number of doubles for MUMPS to hold factorization (INFO(9)) = 129365
Number of integers for MUMPS to hold factorization (INFO(10)) = 138707
real 2m40.741s
user 1m46.039s
sys 0m1.736s
More information about the Bonmin
mailing list