scampi: a new scala library to solve operations research and optimization problem

Hi
Have you written your own CP engine and LP or used a pre-existing package?

Tim

On 15 January 2012 13:08, pschaus wrote:
> We just released our modest open-source scala library called Scampi to
> solve OR problems (currently Constraint Programming, MIP/LP,
> Derivative Free Optimization, Discrete Event Simulation):
> Maybe you'll find it useful, maybe not but for us it was a way to
> promote Scala and Operations Research.
> Thank you to all the people from n-Side (www.n-side.com) who have
> contributed or gave us some time to develop on Scampi and our two
> interns of this summer Cyrille Dejemeppe (UCL) who worked on the
> derivative free optimization package and Hrayr Kostanyan (ULB) who
> contributed on the linear programming package.
> We hope more documentation will come soon and please already accept
> our apologies for the bugs you may encounter if you try to use it.
>
> https://bitbucket.org/pschaus/scampi

yes, i would also be interested in this question? and how does it compare for example to ChocoSolver ( http://www.emn.fr/z-info/choco-solver/ )

best, -sciss-

On 15 Jan 2012, at 17:25, Tim Pigden wrote:

> Hi
> Have you written your own CP engine and LP or used a pre-existing package?
>
> Tim
>
> On 15 January 2012 13:08, pschaus wrote:
>> We just released our modest open-source scala library called Scampi to
>> solve OR problems (currently Constraint Programming, MIP/LP,
>> Derivative Free Optimization, Discrete Event Simulation):
>> Maybe you'll find it useful, maybe not but for us it was a way to
>> promote Scala and Operations Research.
>> Thank you to all the people from n-Side (www.n-side.com) who have
>> contributed or gave us some time to develop on Scampi and our two
>> interns of this summer Cyrille Dejemeppe (UCL) who worked on the
>> derivative free optimization package and Hrayr Kostanyan (ULB) who
>> contributed on the linear programming package.
>> We hope more documentation will come soon and please already accept
>> our apologies for the bugs you may encounter if you try to use it.
>>
>> https://bitbucket.org/pschaus/scampi

Hello,

Yes this is a new CP engine. For LP and MIP we rely on lp_solve and
glpk open source solvers.
Unfortunately I never used Choco so I can hardly make any comparison.

Pierre

On Sun, Jan 15, 2012 at 6:34 PM, Sciss wrote:
> yes, i would also be interested in this question? and how does it compare for example to ChocoSolver ( http://www.emn.fr/z-info/choco-solver/ )
>
> best, -sciss-
>
>
> On 15 Jan 2012, at 17:25, Tim Pigden wrote:
>
>> Hi
>> Have you written your own CP engine and LP or used a pre-existing package?
>>
>> Tim
>>
>> On 15 January 2012 13:08, pschaus wrote:
>>> We just released our modest open-source scala library called Scampi to
>>> solve OR problems (currently Constraint Programming, MIP/LP,
>>> Derivative Free Optimization, Discrete Event Simulation):
>>> Maybe you'll find it useful, maybe not but for us it was a way to
>>> promote Scala and Operations Research.
>>> Thank you to all the people from n-Side (www.n-side.com) who have
>>> contributed or gave us some time to develop on Scampi and our two
>>> interns of this summer Cyrille Dejemeppe (UCL) who worked on the
>>> derivative free optimization package and Hrayr Kostanyan (ULB) who
>>> contributed on the linear programming package.
>>> We hope more documentation will come soon and please already accept
>>> our apologies for the bugs you may encounter if you try to use it.
>>>
>>> https://bitbucket.org/pschaus/scampi
>

Just a small comment (that could be entirely incorrect) I think glpk is GPL, which means that you must release your library under the GPL (and not LGPL as you have done). Unfortunately, that means I will not be able to play with your codaswarm though I would love too.

You may want to consider wrapping CLP from IBM’s COIN-OR release. To be honest, it is a far better solver anyway.

Best of luck!
marc