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Thanks! </div>
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<div style="direction: ltr;">Thanks and Regards,</div>
<div style="direction: ltr;">Chaitanya</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Ambros Gleixner <gleixner@zib.de><br>
<b>Sent:</b> Wednesday, June 30, 2021 6:29:31 PM<br>
<b>To:</b> Naga Venkata Chaitanya Gudapati - nagavenkata.gudapati@studio.unibo.it <nagavenkata.gudapati@studio.unibo.it>; scip@zib.de <scip@zib.de><br>
<b>Subject:</b> Re: [SCIP] Multiple Constraint handlers</font>
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<div class="PlainText">No, it is not called multiple times, since this would be calls for
<br>
separating the same LP solution.<br>
<br>
Am 30.06.21 um 16:27 schrieb Naga Venkata Chaitanya Gudapati - <br>
nagavenkata.gudapati@studio.unibo.it:<br>
> Thanks! That answers my question but does the pricing round get <br>
> immediately triggered after all the constraint handlers have added cuts <br>
> or do they do they repeat after a few times? As in, say in a given round <br>
> of separation, is each constraint handler called exactly once or can it <br>
> be called multiple times.<br>
> <br>
> Thanks and Regards,<br>
> Nag<br>
> ------------------------------------------------------------------------<br>
> *From:* Scip <scip-bounces@zib.de> on behalf of Ambros Gleixner <br>
> <gleixner@zib.de><br>
> *Sent:* Wednesday, June 30, 2021 7:43:27 AM<br>
> *To:* scip@zib.de <scip@zib.de><br>
> *Subject:* Re: [SCIP] Multiple Constraint handlers<br>
> Hi Naga,<br>
> <br>
> Setting the result to SCIP_SEPARATED does not immediately trigger a<br>
> round of pricing, rather: the separation callbacks of all constraint<br>
> handlers are called (in decreasing priority) and if one sets the result<br>
> to SCIP_SEPARATED, then another round of pricing is triggered.<br>
> <br>
> Does that help?<br>
> <br>
> Best,<br>
> Ambros<br>
> <br>
> <br>
> Am 23.06.21 um 13:50 schrieb Naga Venkata Chaitanya Gudapati -<br>
> nagavenkata.gudapati@studio.unibo.it:<br>
>> Hello Folks,<br>
>> <br>
>> I have three constraint handlers and one pricer. I am trying to understand the price-and-cut loop better.<br>
>> <br>
>> If I understand things correctly, once I add a cut, I set the result to SCIP_SEPARATED which triggers a round of pricing. But what happens when there are three constraint handlers with different separation priorities?<br>
>> <br>
>> Could someone also help me understand what does one round of separation involve when I have multiple constraint handlers?<br>
>> <br>
>> Regards,<br>
>> Nag<br>
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> <<a href="https://listserv.zib.de/mailman/listinfo/scip">https://listserv.zib.de/mailman/listinfo/scip</a>><br>
>> <br>
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