cudnn.benchmark = True device = torch.device('cuda:0' if torch.cuda.is_available() else 'cpu')
时间: 2023-09-15 18:20:22 浏览: 139
浅谈pytorch torch.backends.cudnn设置作用
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As an AI language model, I can tell you that this code seems to be setting the cudnn benchmark to True and checking if a CUDA-enabled device is available. If a CUDA-enabled device is available, it sets the device to be used as 'cuda:0', otherwise it sets the device to be used as 'cpu'.
The cudnn.benchmark setting is used to optimize the performance of the convolutional neural network (CNN) during training by finding the best algorithm to use for the given hardware. This can speed up training time, but may take longer to set up the first time the code is run.
Overall, this code seems to be preparing the environment for using a GPU (if available) to speed up training of a CNN.
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