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oslocyclotronlab / ompy

A python implementation of the Oslo method
https://ompy.readthedocs.io
GNU General Public License v3.0
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PyMultinest broken on macOS Big Sur #169

Closed vetlewi closed 3 years ago

vetlewi commented 3 years ago

The PyMultinest will cause segfaults whenever running on macOS Big Sur. See issue in PyMultinest repo: https://github.com/JohannesBuchner/PyMultiNest/issues/174

fzeiser commented 3 years ago

Comment: As PyMultinest is used in ompy in the normalization, this will lead to an error when using the normalization classes of ompy downstream.

Thank you for reporting this.

JohannesBuchner commented 3 years ago

You can try UltraNest instead, which should be easier to install. https://johannesbuchner.github.io/UltraNest/

fzeiser commented 3 years ago

@JohannesBuchner: Thanks a lot for the suggestion, we may try it out. In the meantime, this might be an alternative for mac users.

fzeiser commented 3 years ago

@vetlewi : did you try the example with the garbage collection (see latest comments in the PyMultiNest issue)?

vetlewi commented 3 years ago

@vetlewi : did you try the example with the garbage collection (see latest comments in the PyMultiNest issue)?

Well, when I ran the PyMultinest examples with a debugger (in my case I use PyCharm, not sure what it exactly uses under the hood) it doesn't give seg fault, but running without the debugger it does. Makes debugging super easy!

vetlewi commented 3 years ago

@vetlewi : did you try the example with the garbage collection (see latest comments in the PyMultiNest issue)?

Well, when I ran the PyMultinest examples with a debugger (in my case I use PyCharm, not sure what it exactly uses under the hood) it doesn't give seg fault, but running without the debugger it does. Makes debugging super easy!

Just to expand a little; running in debugging mode is in no way a solution to the problem!

fzeiser commented 3 years ago

I totally agree. How urgent do you think that this is? If we can wait some time, it would be nice to see if the problem "disappears" soon, instead of changing the library for everyone.

fzeiser commented 3 years ago

Which python version do you use on Big Sur? Do you think that using another version might help? (It must be >=3.7)

vetlewi commented 3 years ago

Which python version do you use on Big Sur? Do you think that using another version might help? (It must be >=3.7)

Tried 3.7, 3.8, 3.9.

grburgess commented 3 years ago

I've also had problems with this. It seems to be an issue in how the ctypes bindings are handled in Big Sur. They have gotten stricter and I think it can be solved by changing a few things.

vetlewi commented 3 years ago

I haven't updated anything, but for some reason it now decided to work... This is so strange! I'm so confused right now...

vetlewi commented 3 years ago

This is no longer an issue. Closing.