[Cbc-tickets] [COIN-OR Branch-and-Cut MIP Solver] #59: cbcSolve.exe (Version 2.2.1) does not save solution to a text file
COIN-OR Branch-and-Cut MIP Solver
coin-trac at coin-or.org
Wed Oct 8 09:46:45 EDT 2008
#59: cbcSolve.exe (Version 2.2.1) does not save solution to a text file
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Reporter: ms at sittananda.com | Owner: somebody
Type: defect | Status: new
Priority: minor | Milestone:
Component: component1 | Version: 2.0
Resolution: | Keywords:
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Comment (by ms at sittananda.com):
Replying to [ticket:59 ms at sittananda.com]:
I didn't realize that placement of the arguments mattered. After
rearranging the command line to this form "cbcSolve.exe test.lp -sec 200
-ratio 0.05 -solve -solu out.txt" the solution is written in text file
out.txt.
Sam
> I recently downloaded Cbc-2.2.1.zip, compiled using Visual Studio 2005
without any errors, and started using cbcSolve.exe to solve my MIP problem
as follows:
>
> "cbcSolve.exe test.lp -sec 200 -ratio 0.05 -solu out.txt -solve"
>
> It goes to completion and the 5% gap limit is reached before the 200 sec
time limit except that the output file "out.txt" it generates does not
contain the solution vector. All I get is :
>
> "Status unknown - objective value 0".
>
> I tried compiling other versions in your archive with similar results.
Please let me know if I am doing something wrong. Saving to a binary file
using option "-saveS outbin.dat" generates a binary output file. I am
trying to save it to a text file.
>
> Thanks.
>
> Sam
--
Ticket URL: <https://projects.coin-or.org/Cbc/ticket/59#comment:1>
COIN-OR Branch-and-Cut MIP Solver <http://projects.coin-or.org/Cbc>
An LP-based branch-and-cut MIP solver.
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