[Coin-discuss] CBC "standard" solver

John J Forrest jjforre at us.ibm.com
Mon Oct 31 09:50:08 EST 2005


Brady,

I think CBC is now robust enough to go into production so I hope to get 
the library to version 1.0 by INFORMS.  At present it is at 0.99!

I have also created a stand alone CBC executable which shares code with my 
stand  alone CLP executable and this is what people should use.   It is 
intended to give good performance with no options but there are many 
options.  It is intended to give hints in the same way as CLP although the 
explanations need more work.  Individual cuts may be switched on or off 
and you can also switch on all (well most) cuts at root, in tree or let 
the code decide.

To make it more useful there is also a savesolution command which saves 
the solution to file in a very simple format which can be used by other 
programs.  The solution command from clp is also there to print solutions.

To obtain this executable (solve) use "make solve" in the Cbc directory. I 
will be working on this to make it better so any suggestions are welcome.

John



Brady Hunsaker <hunsaker at engr.pitt.edu> 
Sent by: coin-discuss-bounces at list.coin-or.org
10/30/2005 08:07 PM
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[Coin-discuss] CBC "standard" solver






Is there a general CBC-based solver that can be easily used without 
coding?

I am doing some work on predicting time to solve and separate work on
tuning parameters and would like to work with a general CBC solver.

I know that CBC is intended primarily as a library, but I believe we
should also have one or more general solvers clearly indicated for
people who don't need/want to code their own.  I thought there was one,
but it wasn't obvious to me as I looked through the files.

Thanks,

Brady
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