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

[John Forrest]

Vladimir,

Due to advanced senility, I can not remember much about ampl interface 
(although I wrote it).  I will try and look at it in a day or two - but 
looking at code, it may be as simple as passing in an explicit "exit" to 
get to writeAmpl.

John Forrest
On 29/03/13 18:07, vladimir voloshinov 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
>
>
>
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