SyncBuffersHook

class mmengine.hooks.SyncBuffersHook

Synchronize model buffers such as running_mean and running_var in BN at the end of each epoch.

after_train_epoch(runner)

All-reduce model buffers at the end of each epoch.

Parameters:

runner (Runner) – The runner of the training process.

Return type:

None

before_val_epoch(runner)

All-reduce model buffers before each validation epoch.

Synchronize the buffers before each validation if they have not been synchronized at the end of the previous training epoch. This method will be called when using IterBasedTrainLoop.

Parameters:

runner (Runner) – The runner of the training process.

Return type:

None