[Cbc] CBC and MathProg on Windows

[Michal Kaut]

A couple of comments.

> I just tested Cbc with GMPL support and it seems to work. In Unix-like
> environments with the autotools, it is only necessary to run the ./get.Glpk
> script in ThirdParty/Glpk prior to configuration and also add
> --enable-gnu-packages

I can confirm that it builds without problems with mingw32+MSYS. The
--enable-gnu-packages option was not needed.


> as an argument to configure (not sure this last one is necessary, but it can't
> hurt. This will build Cbc with support for GMPL. Then you can call it with
> cbc sample.mod%sample.dat
> where the file names for the data and model files are separated by a "%" symbol.

I would like to add that if there is no data file, the syntax is
	cbc sample.mod%
where the "%" at the end is needed to tell cbc that it is a GMPL file.

In addition, if the file includes some post-processing commands, they can be
processed using the "gsolu(tion)" command, which takes as a parameter a file
with solution to the problem (saved using the "solu(tion)" command).
For example, this solves the sudoku.mod file from glpk examples, producing the
same nice output as glpsol:
	cbc.exe sudoku.mod% -solve -solu sudoku.sol -gsolu sudoku.sol


Good luck
Michal


> 
> In Windows, you should be able to just open the Cbc solution file, add the GLPK
> project to the solutin and add "COIN_HAS_GLPK" to the list of preprocessor
> defines. I haven't tried this myself, but it should work fine.
> 
> Cheers,
> 
> Ted
> 
> On Fri, Oct 21, 2011 at 12:45 PM, Jim Levis <jwlevis at gmail.com
> <mailto:jwlevis at gmail.com>> wrote:
> 
>     Can anyone point me to good step-by-step guide for configuring CBC to
>     read MathProg files in Windows? Is there are way to do it with
>     binaries, or do you need to compile CBC and GLPK together? Finally, is
>     using CBC directly with MathProg much more efficient than using GLPK
>     to write an MPS file and then solving with CBC?
> 
>     Thanks.
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> 
> 
> -- 
> Dr. Ted Ralphs
> Associate Professor, Lehigh University
> (610) 628-1280
> ted 'at' lehigh 'dot' edu
> coral.ie.lehigh.edu/~ted <http://coral.ie.lehigh.edu/~ted>
> 
> 
> 
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