Segmentation fault on macOS

[soleti]

Hello, I've tried to install larcv3 both from pip and by building from source, but when I try to import larcv I just get a segfault.

Python 3.10.0 (default, Mar  3 2022, 03:57:21) [Clang 12.0.0 ] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import larcv
zsh: segmentation fault  python3

Do you have any idea on what may cause this? I created a new conda environment and followed the instructions.

[coreyjadams]

Hey Roberto! How are you doing?

That's frustrating. I'll take a look and see if I can fix this today. Can you give me a little more info about the environment? Looks like Mac, can you share what you did to set up this environment so I can replicate it?

There have been some weird issues with pybind11, conda-python and built in compilers on mac being incompatible. Using older versions of python has worked, or compiling larcv3 with newer compilers.

[soleti]

Hi Corey! Nice to hear from you, I am doing well, thanks!

I am on macOS 12.3 and I created an empty conda environment:

conda create -n larcv python=3.10

And then just

pip install scikit-build
pip install larcv

I also tried by compiling from source (git clone etc.), but same result unfortunately.

[coreyjadams]

I can reproduce this on mac but don't have a solution yet. it's pretty strange, could be the mismatch of the compiler I assume you're using (clang11, if you have the latest macOS) vs. the compiler that python was compiled with (clang12). Not sure.

For what it's worth, I've only seen this issue showing up on conda + mac. If you can work on another system or use a different package manager on mac (like port) it works for me.

I'll keep digging around.