TypeError: can‘t convert cuda:0 device type tensor to numpy. Use Tensor.cpu() to copy the tensor to

一.问题描述
在用GPU训练模型时报如下的错误:

TypeError: can’t convert cuda:0 device type tensor to numpy. Use Tensor.cpu() to copy the tensor to host memory first.
TypeError: can‘t convert cuda:0 device type tensor to numpy. Use Tensor.cpu() to copy the tensor to_第1张图片
.解决方案:
方法非常简单,只需把numpy 1.21降为numpy1.19就好了,亲测有用。

pip install numpy==1.19

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