OpenMP parallelization in Open3D

[kimanton]

I have some questions regarding OpenMP in Open3D. I compiled Open3D from latest sources with OpenMP enabled, but can't see a difference when using ICP registration - htop still shows only one core loaded.
Is there a particular functionality that benefits from OpenMP? Or do I need to do some additional setup in my code?

I also have acados library with OpenMP enabled, and I can see all CPU cores loaded when doing nonlinear optimization.

[JaouadROS]

I have the same issue using python, only one thread is running at 100%. How can I make sure the parallelization is enabled?

[EngineerNitin]

@kimanton Are you seeing this on Windows machines? I could observe significant difference earlier between Linux and WIndows, Linux being ~2X faster

[kimanton]

Only used it on Ubuntu