On Tue, 6 Oct 2020 at 16:15, Domingo Alvarez Duarte <mingo...@gmail.com> wrote:
> Testing GLPK with miplib2017 I noticed that GLPK/glpsol gives different > values for LP objective funcion value when a MIP problem is given with > the option --nomip , is this the expected behavior ? > Yes, this is expected. For a mip additional preprocessing is possible, a trivial example is that integer variable bounds can be tightened to the next integer. Best Regards, Chris Matrakidis