[Coin-discuss] AMPL interface to CLP?

[Robin Lougee-Heimer]

Bob:

>the entire AMPL-solver library is open-source, 
>available at http://www.netlib.org/ampl/solvers/. 

Under what OSI-certified open-source licence?
I didn't see any mention of license in the README file of this directory, 
or any LICENSE file. 

Thanks,
Robin

----------------------------------------------------------------------------------
Robin Lougee-Heimer
IBM TJ Watson Research Center
1101 Kitchawan Road, Yorktown Heights, NY 10598
ph: 914-945-3032   fax: 914-945-3434 
robinlh at us.ibm.com
http://www.coin-or.org





"Robert Fourer" <4er at iems.northwestern.edu> 
Sent by: coin-discuss-bounces at list.coin-or.org
01/06/2006 07:35 PM
Please respond to
4er and Discussions about open source software for Operations Research 


To
"'Discussions about open source software for Operations Research'" 
<coin-discuss at list.coin-or.org>
cc

Subject
RE: [Coin-discuss] AMPL interface to CLP?







I would add that the entire AMPL-solver library is open-source, available 
at
http://www.netlib.org/ampl/solvers/.  Instructions for using the library 
to
write an AMPL-solver "driver" are at http://www.ampl.com/hooking.html. 
Source
for many previously written drivers is also available, in the same 
location as
the library source, so it's often possible to modify an existing driver 
rather
than start from scratch.

Leo makes a good point of mentioning the work with LPFML and OSiL, which 
is
intended to eventually render it unnecessary to write a separate driver 
for
every modeling-language/solver pair.  I don't think that this will be 
complete
within the next 6 months, however.

Bob Fourer
4er at iems.northwestern.edu


> -----Original Message-----
> From: coin-discuss-bounces at list.coin-or.org [mailto:coin-discuss-
> bounces at list.coin-or.org] On Behalf Of Leo Lopes
> Sent: Friday, January 06, 2006 5:18 PM
> To: Discussions about open source software for Operations Research
> Subject: Re: [Coin-discuss] AMPL interface to CLP?
> 
> You can use CLP from AMPL by generating LPFML files using a driver
> than then invokes CLP via OSI. You can download the latest LPFML
> distribution for this purpose. Since LPFML is no longer active pending
> the release of the OSiL libraries, you might also consider writing
> your own AMPL OSI driver, which should be fairly simple for the LP
> case. There is a document on the AMPL web site that explains how to do
> it...
> 
> Cheers,
> Leo.
> 
> On 1/6/06, Gardner Pomper <gardner at networknow.org> wrote:
> > Hi,
> >
> > We would like to start using CLP for our ampl models. Does anyone know 
if
> > there is an AMPL interface for it? Is it just in the package, or is it
> > seperate?
> >
> > Thanks,
> > - Gardner
> >
> >
> > _______________________________________________
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> > http://list.coin-or.org/mailman/listinfo/coin-discuss
> >
> >
> >
> 
> 
> --
> ========================================================================
> Leonardo B. Lopes                                    leo at sie.arizona.edu
> Assistant Professor                                        (520)621-2342
> SIE - University of Arizona  http://www.sie.arizona.edu/faculty/leolopes
> 
> _______________________________________________
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