Method create

tools/train_utils/fastai_optim.py:112–119

Create an `optim.Optimizer` from `opt_func` with `lr`. Set lr on `layer_groups`.

(cls, opt_func, lr,
               layer_groups, **kwargs)

    @classmethod
    def create(cls, opt_func, lr,
               layer_groups, **kwargs):
        "Create an `optim.Optimizer` from `opt_func` with `lr`. Set lr on `layer_groups`."
        split_groups = split_bn_bias(layer_groups)
        opt = opt_func([{'params': trainable_params(l), 'lr': 0} for l in split_groups])
        opt = cls(opt, **kwargs)
        opt.lr, opt.opt_func = listify(lr, layer_groups), opt_func
        return opt

    def new(self, layer_groups):
        "Create a new `OptimWrapper` from `self` with another `layer_groups` but the same hyper-parameters."