[Cbc] cbc.exe vs. Cbc API

[Michal Kaut]

Hello Stefan,

that was fast indeed ;-)

It looks like I have formulated the question wrongly. I meant to ask how 
to solve a problem (an OsiCbc or CbcModel object), so that Cbc will use 
the same settings as cbc.exe RUN WITHOUT ANY OPTIONS. In a way, I just 
want to emulate the main executable in my own code...
The example should make it clear why I want to do this this, as opposed 
to just calling the branchAndBound() routine...


Anyway, thanks for info.

Regards,
Michal


Stefan Vigerske wrote:
> Hi,
> 
> let me try to be faster than John ;-).
> 
>> is there a (preferably easy) way to pass to a OsiCbcSolverInterface or 
>> CbcModel object the same set of options that the standalone solver 
>> (cbc.exe) is using?
> 
> The cbc example driver3.cpp should show how this is done.
> You create a CbcModel, then call
> CbcMain0(model);
> create an char* array args of parameters that you normally give to your 
> cbc executable, end then call
> CbcMain1(number of args, args, model);
> 
>> I have a problem that cbc.exe solves in under a minute, but when I 
>> load the same MPS file to an OsiCbcSolverInterface object and use 
>> .branchAndBound(), it takes at least a day (I stopped after a day, so 
>> I do not know)...
> 
> I think I heard that OsiCbc is not a good way to run Cbc.
> 
> Best,
> Stefan
>