Questions about qualification submission

[optboy]

Hello! We have some questions about the qualification evaluation.

1. Which version of Cplex is used for evaluation? Is it okay to use the new version of Cplex(20.1)?

2. Which version of python is used for evaluation?

3. When evaluating, should a single execution produce results for both 15 and 90-minute solutions? Or you will execute twice for 15 and 90-min solutions (with different time limits)?

Thank you!

[mlangiu]

I would like to add a few things:

• In general it would be nice to know version information for all the available solvers (CPLEX, Gurobi, LocalSolver)
• Can we assume that the standard solver APIs are available (e.g., the gurobipy Package in case of a Gurobi/Python-based submission), or are we restricted to generate input files and pass them to the base solver executables?
• from the last point in Section 1 of Challenge_Rules.pdf It is not 100% clear whether the use of things like additional Python packagase, e.g., numpy or scipy is allowed or not. The "accepted third party dependency" appears to only refer to MILP solvers.

Thanks in advance.