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ci: Install mpi4py#1149

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yzh119 merged 2 commits intoflashinfer-ai:mainfrom
yongwww:ci_mpi4py
Jun 17, 2025
Merged

ci: Install mpi4py#1149
yzh119 merged 2 commits intoflashinfer-ai:mainfrom
yongwww:ci_mpi4py

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@yongwww yongwww commented Jun 16, 2025

📌 Description

Install the python packages for CI docker: mpi4py, pynvml. They will be used for the comm ops.

🔍 Related Issues

#1145, #1134

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Summary of Changes

Hello @yongwww, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on enhancing our continuous integration (CI) environment by installing essential Python packages. The primary objective is to ensure the CI system possesses the necessary dependencies for upcoming features, particularly those involving distributed communication, thereby bolstering the robustness and completeness of our automated testing infrastructure.

Highlights

  • CI Environment Update: I've updated the CI Docker environment to include two new Python packages: mpi4py and pynvml. These additions are crucial for enabling communication operations (comm ops) within the CI system, supporting related features or fixes in other pull requests.
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yongwww commented Jun 16, 2025

cc: @yzh119 @cyx-6

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Code Review

This pull request adds pynvml and mpi4py to the CI docker environment. pynvml is added via pip, and mpi4py is added via conda. While the specific packages are relevant for the stated purpose, mixing pip and conda in the same environment can potentially lead to dependency issues in the future. Consider standardizing on one package manager for all Python dependencies if possible.

pip3 install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cu128
pip3 install ninja pytest numpy scipy build
pip3 install ninja pytest numpy scipy build pynvml
conda install -y mpi4py
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medium

Mixing pip and conda installations within the same environment can sometimes lead to dependency conflicts or unexpected behavior. While this might work for simple cases, it's generally recommended to use a single package manager (conda in this case, since it's already used for the environment) for all packages if possible, or be very careful about managing dependencies when mixing them.

@yongwww yongwww marked this pull request as draft June 16, 2025 21:48
@yongwww yongwww marked this pull request as ready for review June 17, 2025 03:15
@yzh119 yzh119 merged commit 8e204cf into flashinfer-ai:main Jun 17, 2025
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@yongwww yongwww deleted the ci_mpi4py branch June 17, 2025 03:54
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2 participants