byuflowlab / openmdao.jl Goto Github PK

@andrewning I'd like to register OpenMDAOCore.jl and OpenMDAO.jl to the Julia General registry. Any thoughts or objections?

I've been working on replacing OpenMDAO.jl's dependency on PyCall/pyjulia with PythonCall and JuliaCall. The benefits of PythonCall/Juliacall over the older PyCall/pyjulia libraries:

• PythonCall and JuliaCall manage dependencies much better, using CondaPkg for Python dependencies in a Julia package, and JuliaPkg for Julia dependencies in a Python package
• JuliaCall is able to pass a Julia struct without a copy, which gets around an annoying hack that OpenMDAO.jl uses now

The version of OpenMDAO.jl using PythonCall/JuliaCall is in the pythoncall_juliacall branch of my fork: https://github.com/dingraha/OpenMDAO.jl/tree/pythoncall_juliacall I've managed to get CI set up, and have some docs, too.

The switch wouldn't be too painful—the API is basically the same, though I did split the Julia-related code into two packages:

• OpenMDAOCore.jl: A Julia-only package that defines the interface used to create OpenMDAO components from Julia code (AbstractExplicitComp, AbstractImplicitComp, etc.)
• OpenMDAO.jl, a small wrapper package that has OpenMDAO itself (the actual Python package) as a dependency, along with OpenMDAOCore.jl. (The idea is a Julia user can install OpenMDAO.jl to get access to both OpenMDAOCore.jl and OpenMDAO itself, then use it from Julia.)

Current OpenMDAO.jl code would have to replace references to, say, OpenMDAO.AbstractImplicitComp or OpenMDAO.setup! with OpenMDAOCore.AbstractImplicitComp and OpenMDAOCore.setup!.

I was about to submit a pull request, but wanted to create this issue to give any current users a chance to weigh in. I don't imagine there are many out there. :-) @andrewning Does anyone from your research group use this currently? There are a handful of users here at Glenn (maybe three, counting me).

I guess we should have a licence for this. @andrewning your group appears to use MIT for most things. Would that be OK with you for OpenMDAO.jl?

@JuliaRegistrator register subdir=julia/OpenMDAO.jl