[Cbc] [Clp] GNUMath Prog

[Ted Ralphs]

I don't think it should be too difficult to make Cbc print out the
results in a fashion similar to SYMPHONY, but I'm not entirely sure
about that. I will try to take a look at it over the next few days. In
the meantime, if you could file a ticket, that would be helpful.

Cheers,

Ted

On Tue, Feb 8, 2011 at 3:14 AM, Michal Kaut <mail at michalkaut.net> wrote:
> Just a question about the level of GMPL support: last time I tried, only
> Symphony parsed also the reporting parts of the .mod files (printing of
> the results etc) - Cbc simply ignored them.
> Has it improved now? And if not, are there any plans to do it? (Solving
> a problem does not really help, if one cannot print the results
> afterwards..)
>
> Regards,
> Michal
>
>
> On 07/02/11 19:06, Ted Ralphs wrote:
>> This is not really the right mailing list for question about CBC, so
>> I'm cc'ing the Cbc list. All of the COIN-OR projects can read GMPL in
>> principle if the code is built with GLPK present. The ability to read
>> GMPL files is provided in the CoinUtils project through a link to
>> GLPK. With Cbc, if you specify the model and data files with a "%" in
>> between as your input file name, it will read them as GMPL, i.e.,
>>
>> cbc sample.mod%sample.dat
>>
>> To build cbc with GMPL support using the autotools, you would go into
>> the ThirdParty/Glpk directory and run the command
>>
>> ./get.Glpk
>>
>> This will download the source for the proper version of Glpk. Then
>> just configure and build as usual. The Glpk source will be
>> auto-detected, built, and linked. We cannot distribute binaries that
>> include this capability because of restrictions imposed by the GPL.
>> Feel free to post further questions to either the Cbc list or the
>> CoinUtils list, as appropriate.
>>
>> Cheers,
>>
>> Ted
>>
>> On Mon, Feb 7, 2011 at 12:10 PM, Brian Borchers<borchers at nmt.edu>  wrote:
>>>
>>>>
>>>> Message: 1
>>>> Date: Mon, 7 Feb 2011 10:02:58 +0530
>>>> From: "ranganaths"<ranganath.s at excelindia.com>
>>>> Subject: [Clp] GNUMath Prog
>>>> To:<clp at list.coin-or.org>
>>>> Message-ID:<001201cbc680$192379e0$4b6a6da0$@s at excelindia.com>
>>>> Content-Type: text/plain; charset="us-ascii"
>>>>
>>>> Hello,
>>>>
>>>>
>>>>
>>>>                 Does COIN-OR BC(CBC) accept the input model in the
>>>> GNUMathProg format?
>>>>
>>>>
>>>
>>> You can use glpk to convert a model from GNU Math Prog format to MPS format
>>> and then use the MPS file as input into the COIN-OR tools.
>>>
>>>
>>>
>>> --
>>> Brian Borchers                          borchers at nmt.edu
>>> Department of Mathematics      http://www.nmt.edu/~borchers/
>>> New Mexico Tech                       Phone: (575) 322-2592
>>> Socorro, NM 87801                   FAX: (575) 835-5366
>>>
>>> _______________________________________________
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>>> http://list.coin-or.org/mailman/listinfo/clp
>>>
>>>
>>
>>
>>
>
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-- 
Dr. Ted Ralphs
Associate Professor, Lehigh University
(610) 628-1280
ted 'at' lehigh 'dot' edu
coral.ie.lehigh.edu/~ted