[Cbc] MIP optimizing
Bjørn Sigurd Johansen (Spider Solutions AS)
bjorn.sigurd.johansen at spidersolutions.no
Mon Sep 4 17:03:28 EDT 2017
Hi all,
I have a (“normal”?) MIP optimization problem:
* 1500 integer variables
* 1500 binary variables
* 1500 simple constraint between the integer and the binary variables.
* 50 (large) equations/constraints including all integer variables.
* Objective function including all integer variables.
I have understood that it is possible to tune cbc?
Using command line options, I assume.
Any tip on tuning to try out?
Currently, a solution is generated in 60 seconds with ratiogap 0.05. Due to repeated runs, reducing this time would be very good.
I have a Windows compiled cbc.exe from august 1st 2016. Probably version approx. 2.9.8, but cannot be sure on this
* Bjorn
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.coin-or.org/pipermail/cbc/attachments/20170904/203d5597/attachment.html>
More information about the Cbc
mailing list