[Couenne] Changing on Couenne code to save information

[Pietro Belotti]

Wendel,

in alternative you can set the option

bb_log_interval 10

(or an even smaller number than 10) in the option file couenne.opt. This
will increase by far the amount of output, but Couenne will print a line
every 10 nodes with information on the lower bound and the total CPU time
so far. You can then select those lines with times around multiples of 1800.

Pietro


On Thu, Oct 17, 2013 at 3:10 PM, Stefan Vigerske
<stefan at math.hu-berlin.de>wrote:

> Hi,
>
> I'm adding a primal heuristic to Couenne in order to track such
> information.
>
> CouenneSetup couenne_setup;
> couenne_setup.heuristics().**push_back(BabSetupBase::**HeuristicMethod());
> couenne_setup.heuristics().**back().heuristic = new
> GamsCbcHeurSolveTrace(...);
> couenne_setup.heuristics().**back().id = "Solvetrace writing heuristic";
>
> https://projects.coin-or.org/**GAMSlinks/browser/trunk/**GAMSlinks/src/**
> SolverInterfaces/**GamsCbcHeurSolveTrace.hpp<https://projects.coin-or.org/GAMSlinks/browser/trunk/GAMSlinks/src/SolverInterfaces/GamsCbcHeurSolveTrace.hpp>
>
> Stefan
>
>
> On 10/16/2013 11:18 PM, Wendel Melo wrote:
>
>> Hi experts
>>
>> I am a new couenne user. I have used Couenne to solve a kind of nonconvex
>> quadratic problems. However, I would like to save information about
>> Couenne
>> progress in a file after a certain measure of time, since I am doing a
>> comparative research. For example, I would like to save lower bound and
>> upper bound of a input problem after each 30 minutes of cpu time.
>>
>> I know it would require a change on Couenne code. Does anyone here have
>> some idea where I could do those changes in the Couenne code?
>>
>> Thanks in advanced
>>
>>
>> Wendel Melo
>> Ph. D. Student
>> University of Michigan / Federal University of Rio de Janeiro
>>
>>
>>
>>
>> ______________________________**_________________
>> Couenne mailing list
>> Couenne at list.coin-or.org
>> http://list.coin-or.org/**mailman/listinfo/couenne<http://list.coin-or.org/mailman/listinfo/couenne>
>>
>>
> ______________________________**_________________
> Couenne mailing list
> Couenne at list.coin-or.org
> http://list.coin-or.org/**mailman/listinfo/couenne<http://list.coin-or.org/mailman/listinfo/couenne>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.coin-or.org/pipermail/couenne/attachments/20131017/088e0725/attachment.html>