dygraph support input a out Tensor #74484
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Enigmatisms
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Aug 11, 2025
* dygraph support input a out Tensor * refine * refine * refine * refine * refine * refine * refine * refine
maxiaolong001
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Aug 12, 2025
* dygraph support input a out Tensor * refine * refine * refine * refine * refine * refine * refine * refine
This was referenced Sep 4, 2025
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PR Category
Execute Infrastructure
PR Types
New features
Description
动态图支持传入一个out Tensor，用于接受返回值。同时，API也会返回一个Tensor。两者共享显存、autogradmeta。
该能力目前只支持前向、只有一个output、非inplace的场景。strings、sparse、反向、多输出暂不支持该功能。
如果API层需要该功能可以直接改造_C_ops的调用，比如从：
改造为：
对于API改造支持out能力建议修改步骤：
具体可参考本PR的：
python/paddle/tensor/creation.py
test/legacy_test/test_complex_op.py
TODO:
Pcard-67164