AttributeError: 'SequenceParallelGroupCoordinator' object has no attribute 'shm_broadcaster'

[ystgx]

It seems that GroupCoordinator support shared memory broadcaster, but there is no code to init it. So if use broadcast_object api, it will throw Error:
AttributeError: 'SequenceParallelGroupCoordinator' object has no attribute 'shm_broadcaster'

[feifeibear]

It appears the GroupCoordinator is designed to support a shared memory broadcaster, yet the initialization code for shm_broadcaster is missing in SequenceParallelGroupCoordinator. To provide more reproducibility evidence:

1. Code Snippet: Share the exact code where you call the broadcast_object API, including how the SequenceParallelGroupCoordinator object is instantiated.
2. System Environment: Specify your Python version, relevant library versions (e.g., if GroupCoordinator is from a particular library), and the operating system you're using.
3. Steps to Reproduce: Outline the step - by - step process to reproduce the error, from setting up the environment to running the code.

This additional information will help in pinpointing the root cause.