gadget hdf: reduce size 1 header arrays to scalar #4414
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chrishavlin
added
enhancement
|
oops, look like I didn't properly exclude the new test from nose... |
Co-authored-by: Clément Robert <[email protected]>
neutrinoceros
previously approved these changes
Jun 17, 2023
jzuhone
previously approved these changes
Jun 20, 2023
Co-authored-by: Clément Robert <[email protected]>
neutrinoceros
approved these changes
Jun 20, 2023
|
let's try backporting this |
meeseeksmachine
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Jun 20, 2023
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This PR is one way to fix an issue reported on slack by Ben Oppenheimer: the CAMELS Astrid (Gadget-3, HDF) simulations have some hdf5 attributes saved as single element arrays but yt expects scalars, which leads to errors on dataset initialization.
The fix here simply reduces length 1 arrays to scalar values in the base gadget class.
Note that this particular flavor of HDF5 Gadget output does not have a dedicated frontend in yt. Assuming all the yt tests pass (Ben confirmed it does indeed allow loading of data and outputs from analysis seem correct), the fix here is simple enough that it seemed worth submitting even though a new frontend is a better long term solution. I also don't have a good datafile for testing, so just mocked up a header with nested arrays in the new test that I added.