Update Ipopt.jl and ADNLPModels.jl

lanl-ansi / rosetta-opf

AC-OPF Implementations in Various NLP Modeling Frameworks

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Closed amontoison closed 3 weeks ago

amontoison commented 2 months ago

More recent versions of Ipopt.jl with the latest Ipopt_jll.jl and the associated dependencies (MUMPS_jll.jl, SPRAL_jll.jl, etc...).
More recent version of ADNLPModels.jl. We just added a symmetric coloring for the Hessian of the Lagrangian instead of a column coloring, which helps to compute fewer directional derivatives to recover all non-zeros and thus provides a speed-up.

Thanks again @ccoffrin, rosetta_opf is very useful to benchmark sparse AD.

ccoffrin commented 3 weeks ago

Runtime on large models is reduced by ~2x.