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Dear Diego,<br>
<br>
I tried both options mentioned in your mail but I could not see the
behaviour you described. Did you implement your own separator and
tried those different options? Are you sure if your code calls
SCIPaddCut()? Can you send me an instance where I can reproduce this
behaviour?<br>
<br>
By the way,<br>
<br>
<span> SCIP_CALL( SCIPsetRealParam(scip, "</span><span><span>separating/objparalfac</span>",
0.0) );<br>
<br>
works totally fine for me. I guess you just have a typo in </span><span><span><span>objparalfac
(instead of </span></span></span><span><span><span><span><span>objparalfrac).<br>
<br>
<br>
Best,<br>
<br>
Benny<br>
</span></span></span></span><br>
<br>
</span>
<div class="moz-cite-prefix">On 11/13/2015 12:19 PM, <a class="moz-txt-link-abbreviated" href="mailto:dponce@us.es">dponce@us.es</a>
wrote:<br>
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<blockquote cite="mid:ee29374cd0a75e4d97a8eeed1c78d8b0@us.es"
type="cite">
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<p> </p>
<p>Hello list,</p>
<p>I'm missing something about parameter forcecut in function
SCIPaddCut()</p>
<p>Taking into acount this previous question</p>
<p><a moz-do-not-send="true"
href="http://listserv.zib.de/pipermail/scip/2013-June/001521.html">http://listserv.zib.de/pipermail/scip/2013-June/001521.html</a></p>
<p>and Tobias Achterberg's thesis Section 3.3.8, I though that
next two options will be similar</p>
<p style="padding-left: 30px;"><span style="text-decoration:
underline;">Option 1</span></p>
<p style="padding-left: 30px;">forcecut = false</p>
<p style="padding-left: 30px;">SCIP_CALL( SCIPsetIntParam(scip,
"separating/maxroundsroot", -1) );<br>
SCIP_CALL( SCIPsetIntParam(scip, "separating/maxrounds", 0) );<br>
SCIP_CALL( SCIPsetRealParam(scip, "separating/minefficacyroot",
0.0) );</p>
<p style="padding-left: 30px;"><span style="text-decoration:
underline;">Option 2</span></p>
<p style="padding-left: 30px;">forcecut = true</p>
<p style="padding-left: 30px;"><span>SCIP_CALL(
SCIPsetIntParam(scip, "separating/maxroundsroot", -1) );</span><br>
<span>SCIP_CALL( SCIPsetIntParam(scip, "separating/maxrounds",
0) );</span></p>
<p><span>But really Option 1 does not add cuts. What's going on? I
guessed I was not requiring nothing to cuts.</span></p>
<p><span>With</span></p>
<p><span>SCIP_CALL( SCIPsetRealParam(scip,
"separating/minorthoroot", 0.0) );</span></p>
<p><span>I have the same. And</span><span> I cannot change
parameter separating/objparalfrac.</span></p>
<p><span>Best and thanks.</span></p>
<p><span>Diego.</span></p>
<div> </div>
<br>
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
______________________________
Benjamin Müller
Zuse Institute Berlin
Takustr. 7, 14195 Berlin
<a class="moz-txt-link-abbreviated" href="mailto:benjamin.mueller@zib.de">benjamin.mueller@zib.de</a>
+49 30 841 85-195</pre>
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