How to properly use of step in lr_config?

[sarmientoj24]

Been seeing step in lr_config where the step, for example, is [8, 11] and the epochs are 12.

How do you properly configure that step? Say, the epoch I put is 75. What should be the step?

[jbwang1997]

It doesn't have a rule to set the step. The step used in mmdetection is as same as it in detectron2.

In your situation, you can simply linearly expand the [8, 11, 12] step schedule to totally 75 epochs.

[sarmientoj24]

So the step_config for 75 epochs is still [8, 11]? I thought the epoch has influence on the step?

[jbwang1997]

You can use [50, 69] which is equal to [8, 11] x (75/12).