Problem: Differentiate between Zero, Zero2 and Zero3 using in distributed training.

Topics to be covered:

1. Understanding of the basic functionalities and differences between Zero, Zero2, and Zero3.
2. Understanding of the underlying architecture of Zero, Zero2, and Zero3.
3. The use cases and industrial applications where Zero, Zero2, and Zero3 can be most beneficial.
4. Technical limitations encountered while using Zero, Zero2, and Zero3.
5. Dependency management for Zero, Zero2, and Zero3.
6. Performance comparison in using Zero, Zero2, and Zero3.