[Cbc] How to get CBC-solution in AMPL format ?

[John Forrest]

Vladimir,

At first I thought cbc was not writing .sol file.  It is but it puts it 
out directory where .nl file is.  So look there.

John Forrest

On 29/03/13 18:42, victor.zverovich at gmail.com wrote:
> Hi Vladimir,
>
> If you have a problem in the .nl format you can solve it with the CBC 
> driver for AMPL and write a .sol file as follows:
>
>   cbc <stub> -AMPL
>
> where <stub> is the name of the .nl file without an extension.
>
> HTH,
> Victor
>
> On Fri, Mar 29, 2013 at 11:07 AM, vladimir voloshinov 
> <vladimir.voloshinov at gmail.com <mailto:vladimir.voloshinov at gmail.com>> 
> wrote:
>
>     Dear CBC team,
>     we successfully use CBC (2.7.7) for AMPL models via OSAmplClient
>     from AMPL translator.
>     But now, to "distribute" the computational load, we need to run
>     CBC application on one server, but perform analysis of solution in
>     AMPL translator running on another server.
>     The most convenient would be if CBC-solution will be returned  in
>     AMPL format (*.sol file created by write_sol ASL routine).
>     But not in CBC nor in OSSolverService I can not find an option
>     (similar to "wantsol" for AMPL-solvers) telling to write solution
>     in AMPL format.
>     At the same time in CbcSolver.cpp I see a call of writeAmpl(...)
>     procedure, defined in Cbc_ampl on the base of an ASL write_sol(...).
>
>     May be there are some "hidden" options of CBC (or OSSolverService)
>     or "tricks" of compilation  ?
>     We'll be happy for any hints.
>     -- 
>     Vladimir V. Voloshinov,
>     Ph.D, head of lab. O-3 "Distributed computing algorithms",
>     http://www.iitp.ru/ru/researchlabs/1040.htm,
>     Department of Distributed Computing, http://dcs.isa.ru, Institute
>     for Information Transmission Problems RAS, http://www.iitp.ru
>
>
>     _______________________________________________
>     Cbc mailing list
>     Cbc at list.coin-or.org <mailto:Cbc at list.coin-or.org>
>     http://list.coin-or.org/mailman/listinfo/cbc
>
>
>
>
> _______________________________________________
> Cbc mailing list
> Cbc at list.coin-or.org
> http://list.coin-or.org/mailman/listinfo/cbc

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.coin-or.org/pipermail/cbc/attachments/20130401/b143fb41/attachment.html>