[Bonmin] MINLP vs INLP

[Kashif Rashid]

Max,

BB is still an appropriate solver to use with INLPs.
The difference is that for an INLP all the control variables are integer, whereas for
for a MINLP there are some number which are not. It is the former integer variables that
are continuously relaxed and resolved using BB until the integrality conditions are met.
So basically, the entire BB tree is resolved for an INLP, whereas  this is not the case
with a MINLP once the continuous variables are left.

Hope that helps.
Regards, Kashif


From: bonmin-bounces at list.coin-or.org [mailto:bonmin-bounces at list.coin-or.org] On Behalf Of Maximilian Reischl
Sent: Tuesday, May 28, 2013 2:53 PM
To: bonmin at list.coin-or.org
Subject: [Bonmin] MINLP vs INLP

Hello all,
i happen to be a bit confused and i hope someone can help me to understand this.
So a MINLP is defined to have BOTH discrete and continous decision variables.
I am solving a INLP so there are no continous decision variables in my objective function.
I am wondering if the MINLP solver BONMIN-BB is still suitable for solving INLP's since the solver works very good, only sometimes it fails.

Is there actually a difference between INLP or MINLP in terms of solvin routines?
Thanks all,
Max
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