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<div class="moz-cite-prefix">Hi Miro,<br>
<br>
did you implement the copy callbacks in all your constraint
handlers? Without this, those constraints will be missing in the
local subproblems copied to the solvers and this might lead to
wrong infeasibilities if the optimal solution computed in a local
solver is not feasible in the global problem.<br>
<br>
There is also a way to do a separate project for your extensions;
in priciple, this would need to be similar to the examples in
SCIP, but extending ug-SCIP instead of SCIP. Unfotunately, there
is no example for this in the release yet, but I'm sure Yuji can
send you one and explain to you what exactly you have to do.<br>
<br>
He is out of office this week, but will be back next week, so I
hope you can wait until then.<br>
<br>
Best,<br>
Gerald<br>
<br>
On 16.11.2013 23:51, Miro Marinov wrote:<br>
</div>
<blockquote
cite="mid:CAMKDxHMDV_NNDqngJ+-a1OnV07eCJowH2uXXVNL3sP6hLWjdig@mail.gmail.com"
type="cite">
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<p class="MsoNormal"
style="font-family:arial,sans-serif;font-size:13px"><span
lang="EN-GB">Dear SCIPpers,</span></p>
<p class="MsoNormal"
style="font-family:arial,sans-serif;font-size:13px"><span
lang="EN-GB"><br>
</span></p>
<p class="MsoNormal"
style="font-family:arial,sans-serif;font-size:13px"><span
lang="EN-GB">I have extend <span class=""
style="background-color:rgb(255,255,204)">SCIP</span> with
a couple of constraint handlers. When I use this extended
SCIP to solve a problem in the appropriate format it all
works well. However, when I try using the UG framework with
FibreSCIP (linked to the extended SCIP), it returns
'infeasible' with dual bound gap 0%. I have no idea what to
do. Alternatively, I can do a project of my own (pretty
similar to the LOP example included in SCIP) instead of
extending SCIP with the constraint handlers (which will be
more elegant solution for me) but I have no idea how to take
advantage of the parallelism provided by UG in that case (In
other words how would you run the LOP example in parallel
via FibreSCIP)</span></p>
<p class="MsoNormal"
style="font-family:arial,sans-serif;font-size:13px"><span
lang="EN-GB"><br>
</span></p>
<p class="MsoNormal"
style="font-family:arial,sans-serif;font-size:13px"><span
lang="EN-GB">Thank you very much in advance and I am looking
forward to hear from you. (:</span></p>
<p class="MsoNormal"
style="font-family:arial,sans-serif;font-size:13px"><span
lang="EN-GB"><br>
</span></p>
<p class="MsoNormal"
style="font-family:arial,sans-serif;font-size:13px"><span
lang="EN-GB">Kind Regards,</span></p>
<p class="MsoNormal"
style="font-family:arial,sans-serif;font-size:13px"><span
lang="EN-GB">Miro</span></p>
</div>
<br>
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