Hi John,
Just so I am completely sure I understand, are we operating on the
assumption that the tracer particles will *not* be in the same *file* (not
necessarily chunk) as the gas particles they're assigned to?
On Wed, Aug 26, 2020 at 10:46 AM John ZuHone
Hi folks,
I’d like to get some feedback from you all on a new yt development issue I’ve run into.
So Arepo has passive tracer particles. The way these are handled is that in the snapshot file the tracer particle IDs are stored and the gas Voronoi cell IDs that they are matched to are stored. So if you want any quantity, including position, velocity, density, etc, of the tracer, you’d want to map them from the gas cell ID.
So we need a mapping from PartType0 to PartType3. This seems complicated for a couple of reasons:
1. Since we do things in chunks, how would we get chunks that have the particles of both types that you’d want in the same chunk? Or would this be two chunks at once? 2. Ideally you’d just want to be able to map every gas field to a tracer field, even derived gas fields like angular momentum and entropy, etc. This does not seem like a trivial thing.
Does anyone have any thoughts here? I think this is kind of a new type of issue for us.
Best,
John _______________________________________________ yt-dev mailing list -- yt-dev@python.org To unsubscribe send an email to yt-dev-leave@python.org https://mail.python.org/mailman3/lists/yt-dev.python.org/ Member address: matthewturk@gmail.com