<div dir="ltr"><div>Hi John, </div><div><br></div><div>Thanks for your reply. Actually what I want is to have follow-on branching all over the branch-and bound tree. </div><div><br></div><div>In that crew example, there is only 1 follow-on object created. So even if we set it with high priority, we can do the branching at the root node. Then we rely on integer variable branching.</div><div><br></div><div>So if I create 200 follow on objects in that example, I think it still do the follow-on branching at the root node? but with 200 candidates to choose from. Actually I have set the number of follow-on branching to 200, there is memory issue there. </div><div><br></div><div>What I want is to create multiple follow on branching among the tree and try to minimize the use of single variable branching (best to avoid it). </div><div><br></div><div>Sincerely</div><div><br></div><div>Fang</div><div><br></div><div><br></div><div>Fang,
Why do you want to remove the integer objects? Is there something odd
in your problem, which means variables can take non-integral values?
The integer variables are at lower priority so will only be branched on
as a last resort.
John Forrest
On 03/06/15 05:24, Fang Ma wrote:
><i> Hi CoinOR Cbc community,
</i>><i>
</i>><i> Just a simple question, I am looking at Cbc crew.cpp example, which
</i>><i> revolve around follow-on branching plus simple binary branching on
</i>><i> integer.
</i>><i>
</i>><i> How to deactivate the variable branching such that there is only
</i>><i> follow-on branching without simple variable branching ? It seems in
</i>><i> the Cbc source code, the simple integer object was created by default.
</i>><i> After finished branching on follow on objects, the crew example switch
</i>><i> to variable branching.
</i>><i>
</i>><i> Thanks
</i>><i>
</i>><i> Fang
</i>><i>
</i>><i>
</i>><i> --
</i>><i> Best Regards,
</i>><i> Fang
</i>><i>
</i>><i>
</i>><i>
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</div> <hr><p><ul> <li></li></ul><br clear="all"><br>-- <br><div class="gmail_signature">Best Regards,<br>Fang Ma<br><br></div></p></div>