Precompilation and more

[jbcaillau]

@ocots @PierreMartinon @joseph-gergaud As of today, we haven't taken into account precompilation (in the broad sense) issues. As a matter of fact, using OptimalControl is quite (very) long. Below some (very) interesting links pointed by @amontoison 🙏🏽🙏🏽🙏🏽 on the topic (profiling / improving performance when add(ing) (in the package manager) and using (within the package manager):

• PrecompileTools
• JET
• example with JET on Krylov.jl
• SnoopCompile
• JuMP precompilation script ¹
• see also (uses SnoopCompile)
• must read on Julia 1.9

Footnotes

1. such scripts can be run ahead of using the package, preparing as much stuff as possible; of course, static types can be taken care of, not dynamic (dispatch...) ones ↩

[jbcaillau]

See also (merci @ocots) : https://programmation.developpez.com/actu/354592/Annonce-de-Julia-v1-10-la-nouvelle-version-du-langage-de-programmation-apporte-des-ameliorations-en-termes-de-rapidite-et-de-confort-pour-les-developpeurs/

[PierreMartinon]

Just tested CTDirect (not the whole OptimalControl) on 1.10.1 (linux mint)
I got a precompilation error from CTBase, however tests seem to run fine and almost twice faster than on 1.9 (45-50s vs 75-80s).

WARNING: Method definition apply_recipe(Base.AbstractDict{Symbol, Any}, CTBase.OptimalControlSolution, Union{Symbol, Tuple{Symbol, Integer}}, Union{Symbol, Tuple{Symbol, Integer}}) in module CTBase at /home/pierre/.julia/packages/RecipesBase/BRe07/src/RecipesBase.jl:296 overwritten on the same line (check for duplicate calls to include).
ERROR: Method overwriting is not permitted during Module precompilation. Use __precompile__(false) to opt-out of precompilation.