Index out of bounds error: multiprocessing/pool.py

[hazab]

Hello,

I'm running into an index error when running MountainSort. This seems to only happen with a few specific data sets and not others, and I'm not clear on where the error is coming from. Here is a screenshot of the error:

.. and this is the bash script I'm using for sorting:

(this isn't the whole script, but it crashes at the masking step, anyway).

I've used the exact same script on a larger raw.mda file, so it doesn't seem to be an issue of file size. The algorithm works fine on the first third of my data, but not the subsequent two portions.

Anyone have any idea what might be happening here? Any insight would be helpful. Please let me know if I can provide anymore information (first time I've had to post a problem myself, so sorry if some information is lacking!).