torch.optim.Optimizer.register_step_pre_hook

Optimizer.register_step_pre_hook(hook)

注册一个优化器步骤预钩子，它将在优化器步骤之前被调用。

它应具有以下签名

hook(optimizer, args, kwargs) -> None or modified args and kwargs

The optimizer argument is the optimizer instance being used. If args and kwargs are modified by the pre-hook, then the transformed values are returned as a tuple containing the new_args and new_kwargs.

参数

hook (Callable) – 用户定义的待注册钩子。

返回

一个句柄，可用于通过调用 handle.remove() 来移除添加的钩子

返回类型

torch.utils.hooks.RemovableHandle