I have some questions about CyclicHook

[zhangtingyu11]

I run code based on the mmdetection3d respository, and I found that the Learning rate scheduler is used the hook in MMCV. And the config is like this.

lr_config = dict(
    policy='cyclic',
    target_ratio=(10, 1e-4),
    cyclic_times=1,
    step_ratio_up=0.4,
)
momentum_config = dict(
    policy='cyclic',
    target_ratio=(0.85 / 0.95, 1),
    cyclic_times=1,
    step_ratio_up=0.4,
)

I think it is an OneCycler Schedular with name of cyclic, because the cyclic_times is 1. And for OneCycler, its initail parameters are pct_start=0.4, base_momentum=0.85, max_momentum = 0.95, div_factor = 10, final_div_factor = 1e4. Is it right?