how to specific output_dir in lazy config?

[lucasjinreal]

how to specific output_dir in lazy config?

[AKMourato]

cfg.train.output_dir = '...'

[ppwwyyxx]

You can use cfg.anything as long as you read it in your training script.
The provided example script lazyconfig_train_net.py uses cfg.train.output_dir which is defined in configs/common/train.py.