Sebastian Heger

icon location Freigericht/Germany icon location Dedicated to operations research and mathematical optimization, favour for MILP optimization and python.

Results 9 issues of Sebastian Heger

Update versions of numpy and cffi dependencies

Triggered by #284

Changing preprocess parameter of model does not have any impact

6 comment

**Describe the bug** When changing the preprocess-parameter of the model preprocess is still performed as default. **To Reproduce** Set preprocess parameter to 0, still observe preprocess to be performed in...

Add mypy to CI and make it happy

1 comment

Apply LazyConstraintGenerator if and only if an improved integral solution is found for cbc

5 comment

At the moment it is applied whenever the solution is integer. So unnecessary calls for the same solution are observed.

enhancement
cbc

Draft: Build wheels instead of using manually bundled cbc

2 comment

Consider constraints with empty linexpr correctly

12 comment

Fixes #213

CBC gets stuck after fixing variables

1 comment

When solving the attached [model.lp.zip](https://github.com/coin-or/Cbc/files/4682003/model.lp.zip) on Mac OS 10.15.4 with CBC 2.10.3 installed via brew, the optimizer gets stuck after the root relaxation when variables are fixed. It is not...

bug

Make pytest happy to not throw warnings

Change the default behavior to using CBC, as it should always work?

Would it be an idea to change the default behavior to using CBC, as it should always work? Even if Gurobi is not installed (or no license is found) the...

mip