[SCIP] best way to use scip with matlab?

[Vyacheslav Kungurtsev]

OK, so do you suppose the best way is to write a matlab script that
translates the problem instance into a .lp/.pip format and then run the
shell to call it from matlab?


On Wed, Aug 9, 2017 at 2:01 PM, Stefan Vigerske <stefan at math.hu-berlin.de>
wrote:

> Hi,
>
> the .lp format is quite easy to write and also understood by a number of
> other solvers. The .pip format is similar and a bit simpler, but understood
> by hardly any solver (other than SCIP), as far as I know.
> To use the AMPL SCIP interface, you might need an AMPL license, or write
> .nl files directly.
>
> There is also a matlab interface distributed with SCIP (see
> interfaces/matlab), but I don't know its current status.
>
> Stefan
>
>
>
> On 08/09/2017 12:33 PM, Vyacheslav Kungurtsev wrote:
>
>> Hello,
>>
>> I am trying to find a solver (available via academic license at most) for
>> nonconvex binary QPs. CPLEX requires the constraint quadratics to be
>> positive semi-definite, so I stumbled on to SCIP after finding the OPTI
>> toolbox. But the OPTI toolbox is apparently only available for Windows, so
>> I figured directly installing scip to run in matlab should be possible,
>> but
>> unlike opti there is no matlab interface, apparently.
>>
>> I haven't heard of any of the formats specified in the SCIP documentation,
>> are there any you would recommend as being straightforward to write a
>> script to convert into the proper data format by printing appropriately
>> from MATLAB problem data? I have heard it is possible to access it through
>> ampl, but how would you run scip through the ampl mex?
>>
>> Thank you
>>
>>
>>
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>>
>
> --
> http://www.gams.com/~stefan
>
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