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chore: enhance flampy dependencies.#357

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k82cn merged 1 commit intoxflops:mainfrom
k82cn:dep_cache_v2
Feb 16, 2026
Merged

chore: enhance flampy dependencies.#357
k82cn merged 1 commit intoxflops:mainfrom
k82cn:dep_cache_v2

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@k82cn k82cn commented Feb 15, 2026

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Summary of Changes

Hello @k82cn, 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 optimizing Python dependency management and caching for 'flamepy' within the system's Docker environments and the 'flmadm' installation process. The changes aim to improve startup performance and reliability by strategically pre-warming 'uv' caches and ensuring correct environment variable precedence, particularly for Python package installations and execution.

Highlights

  • Dependency Cache Pre-warming: Implemented pre-warming of the 'uv' cache for 'flamepy' dependencies within Docker images ('Dockerfile.console', 'Dockerfile.fem') to optimize application startup and runtime performance.
  • Cross-Filesystem Compatibility: Introduced 'UV_LINK_MODE=copy' to 'uv pip install' commands in Dockerfiles to ensure robust operation across different filesystem types, preventing potential issues with hard links.
  • Enhanced 'flmadm' Caching Logic: Refactored 'flmadm's 'flamepy' dependency caching into a two-phase process: initial caching via 'uv pip install' and subsequent pre-warming of the 'uv run' ephemeral environment cache for optimal 'flmrun' startup.
  • Environment Variable Precedence: Modified environment variable handling in 'host_shim.rs' to ensure that application-specific environment variables, such as 'UV_CACHE_DIR', take precedence over default settings.
Changelog
  • docker/Dockerfile.console
    • Added 'UV_LINK_MODE=copy' to the 'uv pip install' command for cross-filesystem compatibility.
    • Introduced a new 'RUN' command to pre-warm the 'uv' cache for 'flamepy' dependencies in the runtime environment.
  • docker/Dockerfile.fem
    • Added a comment to the 'flmadm install' step, noting that Python SDK cache warming is deferred to the runtime stage due to differing Python versions.
    • Inserted a new 'RUN' command in the runtime stage to pre-warm the 'uv' cache for 'flamepy' dependencies, ensuring it matches the actual Python version.
  • executor_manager/src/shims/host_shim.rs
    • Updated the logic for extending environment variables, ensuring that existing application-specific variables are not overwritten by defaults from the working directory setup.
  • flmadm/src/managers/installation.rs
    • Refactored the 'flamepy' dependency caching into two distinct phases: initial caching via 'uv pip install' and subsequent pre-warming of the 'uv run' ephemeral environment cache.
    • Updated comments to clarify the caching process and added a new print statement for the pre-warming phase.
Activity
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Code Review

This pull request enhances flamepy dependency management by introducing uv cache warming to improve performance. The changes across the Dockerfiles and flmadm ensure that Python dependencies are cached correctly for different environments. The modification in host_shim.rs correctly prioritizes application-specific environment variables over defaults. My review includes suggestions to optimize the Dockerfile by combining layers and using wheels consistently, and to simplify the cache warming logic in flmadm by avoiding the use of temporary files.

Signed-off-by: Klaus Ma <klausm@nvidia.com>
@k82cn k82cn merged commit 31f6001 into xflops:main Feb 16, 2026
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@k82cn k82cn deleted the dep_cache_v2 branch February 16, 2026 01:24
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