I use CPLEX 12.8 and made an update from JuMP v18.5 to v0.19. Due to major changes in the new version I have to adapt my code, and I do not succeed to add callbacks. The release notes say that callbacks are now solver-specific, however, I cannot find something about that in the documentation of CPLEX.jl nor the documentation of MathOptInterface.
Previously I could add a callback, for instance, with
function infocallback( cb ) println("Hello, info callback") end addinfocallback( model, infocallback, when = :Intermediate )
However, this does not work anymore. Do you have any suggestions?
Thank you in advance