[Cpp API Compatibility] Fix CUDAContext.h to align with Pytorch

[youge325]

PR Category

Execute Infrastructure

PR Types

Bug fixes

Description

修复 #include <ATen/cuda/CUDAContext.h> 时没有 #include <c10/cuda/CUDAStream.h> 的错误，用于 DeepEP 的编译

对齐 getStreamFromPool 函数，详细兼容架构文档已在 PFCCLab/PaddleCppAPITest#59 中更新

是否引起精度变化

否

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[Copilot]

Pull request overview

This PR updates the ATen CUDA compat header(s) to better match PyTorch’s include surface so that #include <ATen/cuda/CUDAContext.h> also brings in the CUDA stream definitions needed by downstream builds (e.g., DeepEP).

Changes:

• Add missing transitive includes (ATen/cuda/Exceptions.h, c10/cuda/CUDAStream.h) to ATen/cuda/CUDAContext.h.
• Update CUDAContext.cpp to include ATen/cuda/CUDAContext.h instead of CUDAContextLight.h.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
paddle/phi/api/include/compat/ATen/cuda/CUDAContext.h	Adds missing includes for CUDA stream / exceptions, but changes conditional include behavior.
paddle/phi/api/include/compat/ATen/cuda/CUDAContext.cpp	Switches to including the main CUDAContext header.

---

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[Copilot]

CUDAContext.h used to only include CUDAContextLight.h when PADDLE_WITH_CUDA/PADDLE_WITH_HIP was enabled. After this change the header unconditionally includes CUDAContextLight.h and c10/cuda/CUDAStream.h, which pulls in CUDA-only APIs (e.g., cudaError_t / cudaStream_t) and will break compilation in non-CUDA/HIP builds that still include this header transitively. Please restore a build-flag guard around the CUDA-specific includes (or provide CPU stubs matching the previous behavior) while still adding c10/cuda/CUDAStream.h for CUDA/HIP builds.

[youge325]

/re-run all-failed

[codecov-commenter]

Codecov Report

❌ Patch coverage is 94.44444% with 4 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (develop@2202902). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...dle/phi/api/include/compat/c10/cuda/CUDAStream.cpp	94.44%	4 Missing ⚠️

Additional details and impacted files

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  Files              ?        1           
  Lines              ?       72           
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  Hits               ?       68           
  Misses             ?        4           
  Partials           ?        0           

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