My optimization fails after certain model size (only occurs in Docker).

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Jun 24, 2020, 4:58:15 AM6/24/20

to OPTANO Modeling

My optimization fails after certain model size (only occurs in Docker).

Steps to reproduce:

1. create a .NET Core Console App

2. add OPTANO Modeling + Optano Gurobi (latest)

3. run a model >= 2688 variables with Docker --> FAILS

4. run the same model without Docker --> SUCCEEDS

5. scale down the model to about 768 variables and run with Docker --> SUCCEEDS

* These exact variable numbers are numbers I used in my tests

* All tests excluded any constraints and only contained some variables and a simple objective

The following screenshots display the model & solution data on both tests with Docker enabled:

Succeeds

Fails

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Jun 24, 2020, 5:15:48 AM6/24/20

to OPTANO Modeling

Hi,

Looks like Gurobi is missing a valid license.

OPTANO Modeling ships with a size limit license for Gurobi and switches back to this license, if no other license is found.

please check the console output for

Could not find a valid Gurobi license. Not using size-limited license due to Configuration value

You might change the default behavior by setting LimitedLicenseUsage in the Solver Config.