有什么方法可以将PyTorch中可用的预训练模型下载到特定路径? [英] Is there any way I can download the pre-trained models available in PyTorch to a specific path?
问题描述
我指的是可以在这里找到的模型: https ://pytorch.org/docs/stable/torchvision/models.html#torchvision-models
I am referring to the models that can be found here: https://pytorch.org/docs/stable/torchvision/models.html#torchvision-models
推荐答案
@dennlinger 在他的答案:
As, @dennlinger mentioned in his answer : torch.utils.model_zoo
, is being internally called when you load a pre-trained model.
更具体地说,每次加载预训练的模型时都会调用方法torch.utils.model_zoo.load_url()
.相同的文档中提到:
More specifically, the method: torch.utils.model_zoo.load_url()
is being called every time a pre-trained model is loaded. The documentation for the same, mentions:
model_dir
的默认值是$TORCH_HOME/models
,其中$TORCH_HOME
默认为~/.torch
.
The default value of
model_dir
is$TORCH_HOME/models
where$TORCH_HOME
defaults to~/.torch
.
默认目录可以用$TORCH_HOME
覆盖
环境变量.
The default directory can be overridden with the $TORCH_HOME
environment variable.
这可以如下进行:
import torch
import torchvision
import os
# Suppose you are trying to load pre-trained resnet model in directory- models\resnet
os.environ['TORCH_HOME'] = 'models\\resnet' #setting the environment variable
resnet = torchvision.models.resnet18(pretrained=True)
我在PyTorch的GitHub存储库中提出了一个问题,从而遇到了上述解决方案: https://github.com/pytorch/vision/issues/616
I came across the above solution by raising an issue in the PyTorch's GitHub repository: https://github.com/pytorch/vision/issues/616
这导致了文档的改进,即上述解决方案.
This led to an improvement in the documentation i.e. the solution mentioned above.
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