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Dear William,<br>
<br>
I just checked the binpacking example with SCIP 5.0 and the smallest
test instance u20_00 is indeed solved without any branching. But the
second-smalles already requires some branching and the Ryan Foster
branching rule is called a few times:<br>
<blockquote type="cite"><tt>Branching Rules : ExecTime
SetupTime BranchLP BranchExt BranchPS Cutoffs
DomReds Cuts Conss Children</tt><tt><br>
</tt><tt> RyanFoster : 0.00 0.00
5 0 0 0 0
0 0 10</tt><br>
</blockquote>
<br>
In your case, is any branching done? If so, which branching rule is
used? Did you implement both the branchexeclp and the branchexecps
callback? And is the priority of your branching rule higher than of
all other rules?<br>
<br>
Best,<br>
Gerald<br>
<br>
<div class="moz-cite-prefix">On 27.12.2017 08:31, Jianan Zhang
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CABXJfNW_OJF1d8iSeAueLCF2HTN9kcER0VK9gpC3SMmnZtMYCw@mail.gmail.com">
<div dir="ltr">
<div dir="ltr">Hi all,
<div>I am using branch and price method to deal with a problem
and using SCIP solver. While I found my Ryan Forster
branching rule callback method is never called by scip
framework. My code is following the [binpacking] example,
and i found that the ryan-forster branch rule callback in
the [binpacking] example is not called either. Can you
confirm that? </div>
<div>Thanks for you help.</div>
<div>William</div>
<div><br>
</div>
</div>
</div>
<br>
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