Support for reset() in PyOptInterface with Gurobi backend?

[Zhanwei-Liu]

Hi all,

I noticed that when using the Gurobi solver through the PyOptInterface package, the model.reset() method is not available. Upon further investigation, it seems that the reset() function is not implemented in the Gurobi api (i.e., in ./lib/gurobi_model.cpp). The API documentation also confirms this:

• PyOptInterface Gurobi API
• Gurobi C++ API reference

I'm wondering if there's an alternative way to reset a model after solving it. My use case involves iterative updates to the right-hand side of constraints, and without resetting the model, the solver appears to become increasingly slow over iterations.

Any suggestions or workarounds would be greatly appreciated. Thanks!

[metab0t]

Implemented in 4b294ca

from pyoptinterface import gurobi

model = gurobi.Model()

# Build model steps

model._reset()

[Zhanwei-Liu]

I tested the solution, and it works perfectly! Really appreciate your quick reply.