Function requires_grad

utils.py:202–207

Set requires_grad flag for all parameters in a model.

(model, flag=True)

        ema_params[name].mul_(decay).add_(param.data, alpha=1 - decay)

def requires_grad(model, flag=True):
    """
    Set requires_grad flag for all parameters in a model.
    """
    for p in model.parameters():
        p.requires_grad = flag

def cleanup():
    """