[yt-dev] Non-periodic datasets and ghost zones

[Matthew Turk]

Hi all,

What should we do (in general) about non-periodic datasets and getting
ghost zones for the domain edges?

This is the reason that the cookbook recipe
simple_slice_with_multiple_fields.py fails -- it's trying to get
vorticity (needs GZs) for a non-periodic dataset.

Fixing the cookbook only requires swapping out the dataset, but I
thought we should probably open this discussion up a bit too.

-Matt