Use clean `at::cuda::CUDAStream` but not wrapped with `std::optional`#11

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youge325 wants to merge 10 commits intoPFCCLab:paddlefrom

youge325:cRemove_Optional

Commits on Mar 24, 2026

Commits on Mar 25, 2026

Commits on Apr 3, 2026

align with paddle
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simplify code through directly using the comm stream without converting it to a CUDAStream and back to a phi::Stream. This change is made in the deep_ep.cpp file, specifically in the get_comm_strea…
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Commits on Apr 4, 2026