Hi maintainers,

Thanks for open-sourcing Virne — it’s a very helpful scaffold.

I’m trying to reproduce the FlagVNE “foundation model” solvers that are mentioned in the FlagVNE repository README. The README states that FlagVNE has been integrated into Virne and gives example solver names like ppo_bigcn+ / ppo_bigat+.

However, after installing Virne and inspecting the available solvers (both by checking the solver registry / vne_simulator/solver modules and by browsing the config options under settings/), I cannot find ppo_bigcn+ or ppo_bigat+ in Virne’s solver list. If I try to run:

python main.py solver.solver_name='ppo_bigat+'

the solver name does not appear to be recognized on my side.

Could you please clarify:

Are ppo_bigcn+ / ppo_bigat+ currently included in this Virne repository?

If yes, where are they registered (which module / registry entry), and what is the correct solver.solver_name to use?

If not, are they in another branch, submodule, or a separate repository?

Is there a specific version/tag of Virne (or FlagVNE) that I should checkout to reproduce those results?