[Cbc] Need advices for properly using CBC

[Karl St-Cyr]

Hello again,


 First of all, I would like to thanks the mailing list for the support. I
realize I am quite new to this and your support has made the whole
experience much more positive and has pointed me in the right direction.


 I realized I had some bugs in the creation of my linear problem and I
hopefully fixed them. Even with the tips I got, the "new" problem is
unsolvable in a decent amount of time. The linear problem take over 5 000
seconds to solve. I've read the documentation and tried different
combination of arguments without any luck. So, once again, I'm asking for
some help.


 Here is an instance I have issues with.


 https://www.dropbox.com/sh/qh311l5gqt1mhcx/AABervHj6hcTmrIvyTFbsOxfa





On Thu, May 8, 2014 at 8:39 AM, Karl St-Cyr <karl at patrikdufresne.com> wrote:

> Hi,
>
> I'm trying to use CBC to solve my linear problem. After implementing a
> version of BigM I manage to find a better solution but the time to solve it
> is a bit too high for my needs. This is my first time using CBC and I want
> to make sure I'm not doing something wrong or missing a way to speed it up.
>
> You'll find 3 dump examples I have problems with in the link bellow (take
> note that 1 problem can be composed of 300+ of theses dumps and would need
> to execute all of them in more or less 7 min, some of the dumps are also
> taking close to no time).
>
> https://www.dropbox.com/sh/dff6h98qxhf7svy/AAC60y10SORx3b25P7bT2bAOa
>
> Thank you for your help
> Karl
>
>


-- 
Karl St-Cyr
Développeur logiciel
Patrik Dufresne Service Logiciel
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