Bus Error on Apple Silicon on clicking "Calibrate Capture Volume"

[calcoloergosum]

Thank you for great tool.

Steps to reproduce:

• On apple silicon, follow installation instruction
• Calibrate camera's intrinsic parameters
• Place extrinsic parameter video
• Click "Calibrate Capture Volume"
• The program crashes. Log on terminal says "zsh: bus error".

Note

• This issue is caused by a bug in external library.
  • np.linalg.inv is called in non-main thread. (caliscope.cameras.camera_array_initializer.get_inverted_stereopair).
  • On Apple silicon, certain numpy function calls do not work outside main thread (!).
• The following lines fix this issue. (credit to this answer in stackoverflow)

  export MKL_NUM_THREADS=1
  export NUMEXPR_NUM_THREADS=1
  export OMP_NUM_THREADS=1

It may be nice to get this issue up for a while, for reference.

[mprib]

Thank you for this information, @calcoloergosum ! I've updated the README with a link back to this issue. I'm running Windows at the moment so I really appreciate you being able to provide this help.

[mprib]

Closing now that this is made explicit on the README