[Cbc] Two questions on Cbc Solver with AMPL

[Feng Gao]

All right. I have that folder. But there is ONLY configuration files/
Makefiles in that folder? No need source code?

Feng

On Tue, Sep 26, 2017 at 11:24 AM, Giacomo Nannicini <giacomo.n at gmail.com>
wrote:

> You can get CBC binaries from the webpage you listed.
>
> To compile ASL with CBC, go to the ThirdPary/ASL folder, and get.ASL.
>
> G
>
> On Mon, Sep 25, 2017 at 11:22 PM, Feng Gao <mangotree.gf at gmail.com> wrote:
> > Dear Giacomo:
> >
> >    Thank you! Can you please let me know where to locate ASL code  or
> binary
> > image? I searched AMPL website---- opensource section, but could not find
> > them...
> >
> > http://ampl.com/products/solvers/open-source/
> >
> > Thanks,
> >
> > Feng
> >
> > On Mon, Sep 25, 2017 at 8:10 PM, Giacomo Nannicini <giacomo.n at gmail.com>
> > wrote:
> >>
> >> Feng,
> >> I believe you need to compile with the ASL solver, otherwise CBC will
> not
> >> have an AMPL interface. Look into ThirdParty/ASL.
> >>
> >> You can probably also get binaries directly from the AMPL website, in
> the
> >> open-source solver section.
> >>
> >> Giacomo
> >>
> >> On Sep 24, 2017 10:38 PM, "Feng Gao" <mangotree.gf at gmail.com> wrote:
> >>
> >> Dear Cbc Users:
> >>
> >>       I have two questions regarding to Cbc Solver with AMPL. Please
> help.
> >>
> >> 1. I use AMPL + Cbc solve to run a case, however, AMPL issued an error
> >> message "Unable to open a file" where a solution is located. I compiled
> the
> >> Cbc solver using VS and the solver is working fine in a stand-alone
> mode.
> >>
> >>
> >> ------------------------------------------------------------
> ------------------------------------------------------------
> ---------------------------------
> >> ampl: solve
> >> ampl? ;
> >> Welcome to the CBC MILP Solver
> >> Version: 2.9.9
> >> Build Date: Sep 19 2017
> >>
> >> command line - C:\COIN\Cbc\Cbc\MSVisualStudio\v10\x64-v100-
> Release\cbc.exe
> >> C:\Users\Feng\AppData\Local\Temp\at2596 -AMPL (default strategy 1)
> >> Unable to open file C:\Users\Feng\AppData\Local\Temp\at2596
> >> No match for AMPL - ? for list of commands
> >> Total time (CPU seconds):       0.00   (Wallclock seconds):       0.00
> >>
> >> Error executing "solve" command:
> >> can't open C:\Users\Feng\AppData\Local\Temp\at2596.sol
> >>
> >> ------------------------------------------------------------
> ------------------------------------------------------------
> ---------------------------------
> >>
> >> 2. How to set a "MIP GAP" termination criteria in Cbc solver command
> line.
> >> The manuals only provide a time limit or the maximal number of
> iterations
> >> termination criteria though.
> >>
> >> Thank you very much,
> >>
> >> Feng
> >>
> >>
> >> _______________________________________________
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> >> Cbc at list.coin-or.org
> >>
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> >>
> >>
> >
>
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