[Fix]: $HOME in launcher eagle example

[h-guo18]

What does this PR do?

Type of change: Bug fix

Launcher example bug raised by @cjluo-nv

Before fix: task1 in tools/launcher/examples/Qwen/Qwen3-8B/hf_online_eagle3.yaml fails
Reason: due to HOME: /tmp set in container, enroot credentials in $HOME/.config/enroot/.crendential not found

GpuFreq=control_disabled
pyxis: importing docker image: nvcr.io/nvidia/tensorrt-llm/release:1.3.0rc10
Apr 28 13:35:59.491365 2515157 slurmstepd   0x155552c3b780: error: pyxis: child 2515158 failed with error code: 1
Apr 28 13:35:59.491415 2515157 slurmstepd   0x155552c3b780: error: pyxis: failed to import docker image
Apr 28 13:35:59.491433 2515157 slurmstepd   0x155552c3b780: error: pyxis: printing enroot log file:
Apr 28 13:35:59.491453 2515157 slurmstepd   0x155552c3b780: error: pyxis:     [INFO] Querying registry for permission grant
Apr 28 13:35:59.491469 2515157 slurmstepd   0x155552c3b780: error: pyxis:     [INFO] Authenticating with user: <anonymous>
Apr 28 13:35:59.491483 2515157 slurmstepd   0x155552c3b780: error: pyxis:     [INFO] Authentication succeeded
Apr 28 13:35:59.491499 2515157 slurmstepd   0x155552c3b780: error: pyxis:     [INFO] Fetching image manifest list
Apr 28 13:35:59.491512 2515157 slurmstepd   0x155552c3b780: error: pyxis:     [INFO] Fetching image manifest
Apr 28 13:35:59.491524 2515157 slurmstepd   0x155552c3b780: error: pyxis:     [ERROR] URL https://registry-1.docker.io/v2/nvcr.io/nvidia/tensorrt-llm/release/manifests/1.3.0rc10 returned error code: 401 Unauthorized
Apr 28 13:35:59.491564 2515157 slurmstepd   0x155552c3b780: error: pyxis: couldn't start container
Apr 28 13:35:59.491579 2515157 slurmstepd   0x155552c3b780: error: spank: required plugin spank_pyxis.so: task_init() failed with rc=-1
Apr 28 13:35:59.491593 2515157 slurmstepd   0x155552c3b780: error: Failed to invoke spank plugin stack
Apr 28 13:35:59.515523 2515146 slurmstepd   0x155552c3b780: error: pyxis: child 2515240 failed with error code: 1

After fix:

GpuFreq=control_disabled
pyxis: importing docker image: nvcr.io/nvidia/tensorrt-llm/release:1.3.0rc10
pyxis: imported docker image: nvcr.io/nvidia/tensorrt-llm/release:1.3.0rc10

Usage

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Testing

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Additional Information

Summary by CodeRabbit

• Chores
  • Updated example pipeline to use the standardized dataset example path.
  • Removed unnecessary per-task overrides of the process home and cache directory to simplify environment setup.
  • Preserved required model checkpoint environment setting for the relevant task so model resolution continues to work.

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📥 Commits

Reviewing files that changed from the base of the PR and between b25681e and 776f71b.

📒 Files selected for processing (1)

• tools/launcher/examples/Qwen/Qwen3-8B/hf_online_eagle3.yaml

🚧 Files skipped from review as they are similar to previous changes (1)

• tools/launcher/examples/Qwen/Qwen3-8B/hf_online_eagle3.yaml

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📝 Walkthrough

Walkthrough

Switches task_0 dataset input from a speculative-decoding prepare-input path to the generic examples/dataset path, and removes per-task environment overrides (HOME=/tmp and TORCHINDUCTOR_CACHE_DIR=/tmp/torch_cache) from task_1 and task_2; task_2 still sets HF_MODEL_CKPT from <<global_vars.hf_model>>.

Changes

Cohort / File(s)	Summary
YAML Pipeline Configuration tools/launcher/examples/Qwen/Qwen3-8B/hf_online_eagle3.yaml	Updates task_0 to use examples/dataset/.../example_data_config.yaml instead of the speculative-decoding prepare-input path; removes per-task environment entries setting HOME=/tmp and TORCHINDUCTOR_CACHE_DIR=/tmp/torch_cache from task_1 and task_2; task_2 still sets HF_MODEL_CKPT from <<global_vars.hf_model>>.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

🚥 Pre-merge checks | ✅ 6

✅ Passed checks (6 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title '[Fix]: $HOME in launcher eagle example' directly addresses the bug fix described in the PR objectives—removing HOME=/tmp environment variable setting that caused enroot credential access failures.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Security Anti-Patterns	✅ Passed	PR contains only YAML configuration changes to launcher example pipeline. No Python code modified, no dependencies added, and none of the six security anti-patterns are present.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch haoguo/fix-example0428

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 76.84%. Comparing base (8eec6d4) to head (776f71b).
⚠️ Report is 11 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1365      +/-   ##
==========================================
- Coverage   76.93%   76.84%   -0.09%     
==========================================
  Files         471      471              
  Lines       50404    50537     +133     
==========================================
+ Hits        38776    38835      +59     
- Misses      11628    11702      +74     

Flag	Coverage Δ
regression	14.91% <ø> (+0.21%)	⬆️
unit	52.78% <ø> (+0.04%)	⬆️

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PR Preview Action v1.8.1
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2026-05-01 23:32 UTC