我有一个模特:
class MyModel(nn.Module):
def __init__(self):
super(MyModel, self).__init__()
self.conv1 = nn.Conv2d(128, 128, (3,3))
self.conv2 = nn.Conv2d(128, 256, (3,3))
self.conv3 = nn.Conv2d(256, 256, (3,3))
def forward(self,):
x = F.relu(self.conv1(x))
x = F.relu(self.conv2(x))
x = F.relu(self.conv3(x))
return x
model = MyModel()
我想以这样的方式训练模型:在每个训练步骤中DATA_X1
应该训练['conv1', 'conv2', 'conv3']
层和DATA_X2
应该只训练['conv3']
层。
我尝试制作两个优化器:
# Full parameters train
all_params = model.parameters()
all_optimizer = optim.Adam(all_params, lr=0.01)
# Partial parameters train
partial_params = model.parameters()
for p, (name, param) in zip(list(partial_params), model.named_parameters()):
if name in ['conv3']:
p.requires_grad = True
else:
p.requires_grad = False
partial_optimizer = optim.Adam(partial_params, lr=0.01)
但这会同时影响required_grad = False
的优化程序>
有什么办法可以做到这一点?
我有一个模型:类MyModel(nn.Module):def __init __(self):super(MyModel,self).__ init __()self.conv1 = nn.Conv2d(128,128,(3,3))self .conv2 = nn.Conv2d(128,256,(3,3)...
为什么不将此功能构建到模型中?