[Bonmin] no solution due to time limit
Pierre Bonami
pierre.bonami at gmail.com
Thu Apr 23 09:10:29 EDT 2009
Hi,
You should look for a message of the type:
Cbc0004I Integer solution of 769440 found after 1772 iterations and 79
nodes (9.29 seconds)
This will indicate that an integer feasible solution was found by
Bonmin (the solutions found by Ipopt are most of the time not integer
feasible).
If one is found, it should be in x when the search terminates.
Best,
Pierre
On Apr 23, 2009, at 4:42 AM, ycollet at freesurf.fr wrote:
> Hello,
>
> I am a little bit disappointed: I use bonmin as a C++ library.
> I launched bonmin on a .nl file, in the messages printed by bonmin,
> I can
> see that some of the iptop resolutions find feasible solutions
> (primal and
> dual feasibility under threshold).
> But bonmin is stopped due to a time limit I set.
> On exit, bonmin returns no solution. If I try to get the content of
> vector
> x in finalize_solution, I get a memory access.
>
> How can I retrieve a feasible solution when a limit has been reached
> (node
> limit, iteration limit, time limit).
>
> Your sincerely,
>
> YC
>
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