[Cbc] CBC MIP wrapper for glpsol (i.e. GLPK Solver)

[Noli Sicad]

No. I don' t thing so.

Please visit: GLPK Wikibook

http://en.wikibooks.org/wiki/GLPK/Mixing_GLPK_with_other_solver_packages

 3party_cplex_wrapper.c or 3party.c is from Andrew Makhorin.

~~~~

/* Filename : 3party.c
 * Date     : July 2011
 * Author   : Andrew Makhorin <mao at gnu.org>
 * Tested   : GLPK v4.45
 *
 * Waiver: To the extent possible under law, Andrew Makhorin
 * <mao at gnu.org> has waived all copyright and related or
 * neighboring rights to this program code.
 * http://creativecommons.org/publicdomain/zero/1.0/
 *
 * Caution: This code uses internal (non-public) data structures
 * and should be rewritten to make use of published APIs instead.
 */

If you download the CBC solver src, you can see that the cbc has 3
party software including glpk - (MathProg ->CBC ) but there is no
there is no CBC -> MathProg for post processing (solution back to
MathProg) . It is hard to implement, I guess.

> There's nothing preventing you from writing this wrapper for your own
> purposes and sharing it with others

I am not C/C++ programmer. I need the help of the CBC community to help me.

Yes, I was studying all the examples in cbc example folder and
searching the net if I could get a cbc_interface that look like the
cplex.h and gurobi.h.

Anybody like to help?

Thanks.

Regards, Noli


On 3/19/15, Miles Lubin <miles.lubin at gmail.com> wrote:
> Aren't there are serious legal issues with this? Cbc is licensed under EPL,
> while GLPK is GPL, and according to wikipedia (
> http://en.wikipedia.org/wiki/Eclipse_Public_License):
>
> The EPL 1.0 is not compatible with the GPL, and a work created by combining
> a work licensed under the GPL with a work licensed under the EPL cannot be
> lawfully distributed.
>
> There's nothing preventing you from writing this wrapper for your own
> purposes and sharing it with others, but at least from my limited
> understanding of the licences, this wrapper could not be officially
> distributed with cbc.
>
> On Wed, Mar 18, 2015 at 5:14 PM, Noli Sicad <nsicad at gmail.com> wrote:
>
>> Hi,
>>
>> CBC MIP solver is quicker and can solve difficult MIP problem compare
>> to current GLPK MIP solver.
>>
>> GLPK/MathProg has very good data management, pre and post processing
>> (i.e. input and output to various formats (database, CVS, etc.), far
>> better than AMPL.
>>
>> CBC solver has "half" support for MathProg, only input at the moment.
>>
>> I think it would be better if we would adapt this approach:
>>
>> GLPK -> CBC MIP-> GLPK  wrapper which uses GLPK to parse a MathProg
>> model with data files, generates mps file, solve it with CBC, and uses
>> the post solve features of GLPK/MathProg.
>>
>> With CBC solver can be user's friendly and popular :-).
>>
>> Gurobi and Cplex have these wrappers for glpsol. I am attaching these
>> 2 files (i.e. wrapper_gurobi.c and 3party_cplex_wrapper.c.
>>
>> John and Ted,
>>
>> What do you think about this approach of having support for CBC in
>> glpsol? Is the doable.
>>
>> Thanks in advance.
>>
>> Regards, Noli
>>
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>>
>