Errors with some Ipopt Solver Settings #154
Description
Given that #130 was resolved I wanted to checkout the performance of Zygote for AC-OPF (i.e. the rosetta-opf example). I ran into a couple issues you may have some ideas about,
result = Nonconvex.optimize(
model,
IpoptAlg(),
NonconvexCore.getinit(model);
options = IpoptOptions(; first_order=false, symbolic=true, sparse=true), # works
#options = IpoptOptions(; symbolic=true, sparse=true), # works
#options = IpoptOptions(; first_order=false, sparse=true), # MethodError
#options = IpoptOptions(; first_order=false, symbolic=true), # BoundsError
#options = IpoptOptions(; first_order=false), # executes but does not converge, most likely incorrect derivatives
#options = IpoptOptions(; symbolic=true), # BoundsError
#options = IpoptOptions(; sparse=true), # works
#options = IpoptOptions(), # executes but does not converge, most likely incorrect derivatives
)
The executes but does not converge are the most mysterious to me because the code runs but with unexpected results.
It was not clear to me which AD backend was being used for these different settings, is there an easy way to query this in the result data?
CC @odow