<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Dear Julio,</div>
<div> </div>
<div>yes, it is possible, but you have to modify Couenne's code and re-compile it. I believe you can output all bounds after the call to CouenneProblem::boundTightening() in Couenne/src/interfaces/BonCouenneInterface.cpp.</div>
<div> </div>
<div>Regards,</div>
<div>Pietro</div>
<div>
<div>
<div name="quote" style="margin:10px 5px 5px 10px; padding: 10px 0 10px 10px; border-left:2px solid #C3D9E5; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">
<div style="margin:0 0 10px 0;"><b>Sent:</b> Friday, March 20, 2020 at 11:20 AM<br/>
<b>From:</b> "Julio González Díaz" <julio.gonzalez@usc.es><br/>
<b>To:</b> couenne@list.coin-or.org<br/>
<b>Subject:</b> [Couenne] Bound Tightening and Couenne</div>
<div name="quoted-content">Dear Couenne developer,<br/>
<br/>
I am a researcher currently running some comparisons between global<br/>
optimization solvers and, in particular, I am using Couenne. It would be<br/>
very interesting for by benchmark analysis to be able to run just the<br/>
FBBT and OBBT preprocessing on a problem and then get the adjusted<br/>
bounds (no B&B, just FBBT and OBBT passes on the original problem to get<br/>
tighter bounds).<br/>
<br/>
Would it be possible to do this with the current version of Couenne?<br/>
<br/>
Thanks in advance.<br/>
Best regards,<br/>
Julio.<br/>
<br/>
<br/>
--<br/>
Life isn't about waiting for the storm to pass... It's about learning to dance in the rain.<br/>
La vida no es solo esperar a que pase la tormenta, sino aprender a bailar bajo la lluvia.<br/>
- Vivian Greene<br/>
<br/>
<br/>
<br/>
**********************************************************************<br/>
Julio González Díaz<br/>
<br/>
Departamento de Estadística, Análisis Matemático y Optimización<br/>
Grupo Modestya<br/>
Facultad de Matemáticas<br/>
Universidad de Santiago de Compostela<br/>
15782, Santiago de Compostela (A Coruña)<br/>
España/Spain<br/>
<br/>
Phone: (+34) 881 813207<br/>
<br/>
<a href="http://eamo.usc.es/pub/julio/" target="_blank">http://eamo.usc.es/pub/julio/</a><br/>
**********************************************************************<br/>
<br/>
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