CGCircuit - Houdini FX series. Pyro: cluster smoke.
https://www.cgcircuit.com/tutorial/houdini-fx-series.-pyro-cluster-smoke.

In this lesson I will cover some methods creating large scale simulations in Pyro. Inspired by “Midway”, I decided to create a scene with a destroyed ship and with a lot of smoke around. The main problem was that large-scale simulation requires a large amount of resources. Therefore, I decided to use the TOP network and clusters, which allowed us to split the simulation into parts and simulate one after another. Also, the new sparse system made it possible to add additional elements very easy. Ship model not included, you can find it on sketchfab, it`s free.