[Cgl] generateCuts const

Haroldo Santos haroldo.santos at gmail.com
Fri Oct 14 19:30:57 EDT 2011


Hi,

I'm trying to integrate my cut generator with CGL.

My cut generator uses information of the implicit conflict graph of binary
variables. Since I try to lift these cuts, including variables which are not
active (=0) in the current fractional solution, I maintain this large
implicit conflict graph  which is built at the beginning of the search
process.

To avoid the expensive work of rebuilt this conflict graph at each
generateCuts     call  I would like to keep it stored in my CglCutGenerator
derived object - updating it would be a lot faster than reconstruct it.
 However I'm not succeeding in update any information in this class since
the method has a const modifier.

Any tips on how can I solve it ?

Cheers,

Haroldo
-- 
=============================================================
Haroldo Gambini Santos
Computing Department - Universidade Federal de Ouro Preto - UFOP
email: haroldo [at ] iceb.ufop.br
home/research page: www.decom.ufop.br/haroldo/

"Computer science is no more about computers than astronomy
is about telescopes." Edsger Dijkstra
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.coin-or.org/pipermail/cgl/attachments/20111014/a2877508/attachment.html>


More information about the Cgl mailing list