Error in FF-HEDM

[dnaragan]

Error from user: The ff has been bugging out on Fit Grains. The error message for a 664 grain case is below but I got a similar error for the one we were working on that had around 300 grains.

Details: id3a FF-HEDM using dexela. Working with the prerelease (hexrd-0.9.12 hexrd/label/prerelease) from 2 weeks ago. Using 5 rings of Ni, minimal coverage on oyter panels.
Looks like a mismatch between the panel size and full detector size.

multiprocessing.pool.RemoteTraceback:

"""

Traceback (most recent call last):

File "/.conda/envs/chess/lib/python3.14/multiprocessing/pool.py", line 125, in worker

result = (True, func(*args, **kwds))

                ~~~~^^^^^^^^^^^^^^^

File "/.conda/envs/chess/lib/python3.14/multiprocessing/pool.py", line 48, in mapstar

return list(map(*args))

File "/.conda/envs/chess/lib/python3.14/site-packages/hexrd/hedm/fitgrains.py", line 111, in fit_grain_FF_reduced

complvec, results = instrument.pull_spots(

                    ~~~~~~~~~~~~~~~~~~~~~^

    plane_data,

    ^^^^^^^^^^^

...<13 lines>...

    interp='nearest',

    ^^^^^^^^^^^^^^^^^

)

^

File "/.conda/envs/chess/lib/python3.14/site-packages/hexrd/core/instrument/hedm_instrument.py", line 1921, in pull_spots

[omega_image_series[i, ijs[0], ijs[1]] for i in frame_indices],

 ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^

File "/.conda/envs/chess/lib/python3.14/site-packages/hexrd/core/imageseries/baseclass.py", line 27, in getitem

return self._adapter[key]

       ~~~~~~~~~~~~~^^^^^

File "/.conda/envs/chess/lib/python3.14/site-packages/hexrd/core/imageseries/process.py", line 64, in getitem

return self._process_frame(arg)

       ~~~~~~~~~~~~~~~~~~~^^^^^

File "/.conda/envs/chess/lib/python3.14/site-packages/hexrd/core/imageseries/process.py", line 105, in _process_frame

img = func(img, d)

File "/.conda/envs/chess/lib/python3.14/site-packages/hexrd/core/imageseries/process.py", line 122, in _subtract_dark

ret = img - dark

      ~~~~^~~~~~

ValueError: operands could not be broadcast together with shapes (98,284) (3888,3072)

"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):

File "/.conda/envs/chess/lib/python3.14/site-packages/hexrdgui/async_worker.py", line 76, in run

result = self.fn(*self.args, **self.kwargs)

File "/.conda/envs/chess/lib/python3.14/site-packages/hexrdgui/indexing/run.py", line 572, in run_fit_grains

self.fit_grains_results = fit_grains(**kwargs)

                          ~~~~~~~~~~^^^^^^^^^^

File "/.conda/envs/chess/lib/python3.14/site-packages/hexrd/hedm/fitgrains.py", line 480, in fit_grains

fit_results = async_result.get()

File "/.conda/envs/chess/lib/python3.14/multiprocessing/pool.py", line 774, in get

raise self._value

ValueError: operands could not be broadcast together with shapes (98,284) (3888,3072)

[psavery]

Yeah there is some issue with the dark background subtraction here we need to fix. Kate ran into this issue too. We will work on it very soon. In the meantime, maybe they can try turning off dark background subtraction before running fit-grains?

[psavery]

I put up a PR that will fix this issue! It should be in the prerelease soon (hopefully this week): #904

[psavery]

This got fixed in #904. It's in the prerelease. Feel free to try it out!