[Scip] Solving LPs with SCIP

g4hx g4hx at gmx.de
Fri Aug 12 19:28:30 MEST 2011


Hello everyone,

I wanted to implement a cutting plane separator for SCIP, but the
separation process consists of solving an LP that consists of some rows
of the LP-relaxation but which is not the relaxation itself.
I could of course use soplex as an LP solver to do it, but that seems
rather silly, since SCIP should contain an interface to use one of the
included solvers. The problem is that I can't find such an interface in
pub_lp.h or type_lp.h. The closest thing that I can see is the file lp.h
which contains a SCIPlpCreate function. However, as this file is not
contained in the SCIP documentation, I don't know if it is meant to be
used in this context.
I could also use a subscip, but I thought that those were meant for
heuristics solving subproblems which are also MIPs.
So how should I implement the separator?

Regards, g4hx


More information about the Scip mailing list