[Cmpl] Same bug in mac version

[Mike Steglich]

Hi Oscar,

I tested your problem on a MacBook Pro with OS X 10.9.4 and Cmpl 1.10.0 and CBC as solver . It runs w/o any problems. There is not a bug.  

You are running a problem with ~ 100k variables (444 integers) and ~50k constraints. It seems that your model is NP hard.  After creating the model instance the solver is also running w/o problems but the effort for the solver growth superproportional.  This is a normal behaviour for such models.

You could work with alternative model formulations or you could use some of the solver options to interrupt the solving process earlier (e.g. a mip gap). An other alternative is to use Gurobi, Cplex or Scip. 

I was able to solve it with Cplex after a couple of seconds.

Cheers,

Mike

> Am 10.12.2014 um 06:22 schrieb Oscar Augusto Téllez Sánchez <oskarts at gmail.com>:
> 
> Hi Mike,
> 
> I am working with a medium size problem and due to the bug the file size growth exponentially. 
> 
> Thanks
> 
> Oscar
> 
> 
> 
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