refine save numpy #57040
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refine save numpy #57040
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ZHUI
approved these changes
Sep 7, 2023
YuanRisheng
approved these changes
Sep 7, 2023
BeingGod
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Sep 9, 2023
* refine save numpy
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Description
Pcard-74613
先将Tensor拷贝到CPU再转numpy：
numpy会拷贝Tensor的所有显存，而不是按需拷贝，导致CUDA Tensor save时间太长。
tensor.cpu会调用phi::Copy。这里如果Tensor是不连续的，会转成连续。再做按需拷贝。