[Cbc] Two questions on Cbc Solver with AMPL

[Giacomo Nannicini]

Feng,
I know how to compile it on Linux, but apparently it's not the same on
Windows, so I'm afraid I cannot help you, sorry. Try to look for the
instructions for MSV.

Giacomo

On Sun, Oct 1, 2017 at 10:21 PM, Feng Gao <mangotree.gf at gmail.com> wrote:
> Dear Mr. Nannicini:
>
>     Sorry to bother you again...
>
>     I am able to compile AMPL ASL library from source code: "amplsolv.lib"
> (both 64-bit and 32-bit)
>
> and
>
>     cbc solver from source code: "cbc.exe" (both 64-bit and 32-bit)
>
>      However, it is unsuccessful to "combine" there two images together,
> i.e., it is unsuccessful to build a cbc solver "cbc.exe" embedded with
> "amplsolv.lib". Do you have any advice? I am using MS Visual Studio 2010
> (the compile is cl.exe).
>
> Thank you very much,
>
> Feng
>
> On Tue, Sep 26, 2017 at 12:27 PM, Feng Gao <mangotree.gf at gmail.com> wrote:
>>
>> All right, thank you for the advice.
>>
>> I am able to get the code.
>>
>> Best,
>>
>> Feng
>>
>> On Tue, Sep 26, 2017 at 12:11 PM, Giacomo Nannicini <giacomo.n at gmail.com>
>> wrote:
>>>
>>> There should be a get.ASL file, but it might require cygwin on Windows.
>>> I don't know how to get ASL automatically on Windows, I guess my best
>>> advice is to look at the get.ASL file and repeat the steps on Windows.
>>>
>>> If you don't know how to do that, then just get the CBC binaries from
>>> the AMPL website.
>>>
>>> On Mon, Sep 25, 2017 at 11:36 PM, Feng Gao <mangotree.gf at gmail.com>
>>> wrote:
>>> > 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
>>> >> >>
>>> >> >>
>>> >> >> _______________________________________________
>>> >> >> Cbc mailing list
>>> >> >> Cbc at list.coin-or.org
>>> >> >>
>>> >> >>
>>> >> >>
>>> >> >> https://urldefense.proofpoint.com/v2/url?u=https-3A__list.coin-2Dor.org_mailman_listinfo_cbc&d=DwICAg&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=8FaVxIx99H879Ebkij38NpcRZoYLK-7QMl1LqyvBccA&m=8SxEtjHupj81oGZfkVBTmkXuT1qwISmP_eNU8T5zAmQ&s=5qs5HpSbbII0q41Boy-R7lKX6Ba0SWcp3LNU6kqLgDg&e=
>>> >> >>
>>> >> >>
>>> >> >
>>> >
>>> >
>>
>>
>