Cannot open history files after a crash

[delaossa]

If an Optimas run fails for some reason, e.g., disk quota exceeded, it should be possible to analyze up to the last "history file".
However, they cannot be opened:

history_file = 'exploration/exploration_history_after_sim_110.npy'
if os.path.exists(history_file):
    history = np.load(history_file)

Output:

File ~/.conda/envs/sim24/lib/python3.11/site-packages/numpy/lib/format.py:839, in read_array(fp, allow_pickle, pickle_kwargs, max_header_size)
    837         array = array.transpose()
    838     else:
--> 839         array.shape = shape
    841 return array

ValueError: cannot reshape array of size 0 into shape (113,)

[RemiLehe]

Thanks for raising this issue @delaossa.
Do you think there would be a way to easily/systematically reproduce this error?