Silke Horn
- Total activity 305
- Last activity
- Member since
- Following 0 users
- Followed by 0 users
- Votes 4
- Subscriptions 153
Activity overview
Latest activity by Silke Horn-
Silke Horn commented,
Hi David, The angles should always be in radians. Best regardsSilke
-
Silke Horn commented,
Hi, What are the types of c and s? Are they scalars or decision variables? If they are decision variables: One cannot use a model's decision variables in if-conditions while building the model (sin...
-
Silke Horn commented,
Hi, You are right that Gurobi currently does not provide any SDP algorithms. Our development team is considering this feature, but we cannot make any promises. Have you looked at the SDP plugin of ...
-
Silke Horn commented,
Hi, Thanks for posting your log. The model is not extremely big and the numerics seems all right. From the log, you can see that presolve and the root relaxation are quite fast, but then Gurobi str...
-
Silke Horn commented,
Sometimes models are so hard that Gurobi cannot find any solution within 1 hour. How big is the model and where is Gurobi stuck? Could you post your log here?
-
Silke Horn commented,
We have assisted you in a support ticket, but I'll also post the gist of the answer here to help other users: We have dropped support for unencrypted HTTP connections to the license server for secu...
-
Silke Horn commented,
Hi, In Gurobi, variables don't have a default value. If there are multiple optimal solutions (for example by choosing different values for variables that do not participate in any constraint or the...
-
Silke Horn commented,
Hi, Welcome to the Gurobi community! Here are a few ideas you could look into: You can model optional constraints (that is, constraints that would be nice but may be violated if necessary) by addi...
-
Silke Horn commented,
You can use indicator constraints for this. For example, in Python, this could be achieved as follows: model.addConstr((y==1) >> (x==1))
-
Silke Horn commented,
Hi, Do I understand correctly that you are explicitly setting the upper bounds to MAXINT here? In that case, you should just leave the variables unbounded. This should remove the warning. (Note tho...