fix: correct relative path for common utils in XPU launch script

[xiaojun-zhang]

Summary

• Fix incorrect relative paths in examples/backends/vllm/launch/xpu/disagg_multimodal_epd_xpu.sh (introduced in feat: Update XPU dockerfile with vllm-v0.17.1 #7500)
• The script was copy-pasted from launch/disagg_multimodal_epd.sh but lives one directory deeper (launch/xpu/), so the source paths need an extra ../ to reach examples/common/
• Without this fix, the script fails immediately with: No such file or directory: .../backends/vllm/common/gpu_utils.sh

Test plan

• Verified the fix resolves the path correctly to examples/common/gpu_utils.sh and launch_utils.sh
• Tested end-to-end on XPU server: ran DEVICE_PLATFORM='xpu' bash disagg_multimodal_epd_xpu.sh --model Qwen/Qwen2.5-VL-3B-Instruct successfully with the fix applied

🤖 Generated with Claude Code

Summary by CodeRabbit

• Bug Fixes
  • Fixed path references in XPU backend example deployment script to ensure correct resource loading.

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[github-actions]

👋 Hi xiaojun-zhang! Thank you for contributing to ai-dynamo/dynamo.

Just a reminder: The NVIDIA Test Github Validation CI runs an essential subset of the testing framework to quickly catch errors.Your PR reviewers may elect to test the changes comprehensively before approving your changes.

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ℹ️ Recent review info

⚙️ Run configuration

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Review profile: CHILL

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Run ID: 6e1107e8-0774-41e8-8217-d910539bb417

📥 Commits

Reviewing files that changed from the base of the PR and between 06f1701 and e3c291a.

📒 Files selected for processing (1)

• examples/backends/vllm/launch/xpu/disagg_multimodal_epd_xpu.sh

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Walkthrough

Updated relative source paths in a shell script to reference utility files at a deeper directory level. Changed import paths from ../../../common/ to ../../../../common/ for gpu_utils.sh and launch_utils.sh. No functional logic modifications.

Changes

Cohort / File(s)	Summary
Shell Script Path Corrections examples/backends/vllm/launch/xpu/disagg_multimodal_epd_xpu.sh	Adjusted relative directory depth in source directives for utility file imports, updating path traversal from three levels to four levels (../../../ → ../../../../).

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: fixing incorrect relative paths in an XPU launch script to reach the correct common utilities directory.
Description check	✅ Passed	The description includes all required template sections (Overview/Summary, Details with specific changes, reviewer guidance on file location, and related issue reference #7500) with clear explanations and test verification.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[rmccorm4]

Hi @xiaojun-zhang, thanks for the fix - please fix the failing DCO check on your commit (needs --signoff)

[xiaojun-zhang]

Hi @xiaojun-zhang, thanks for the fix - please fix the failing DCO check on your commit (needs --signoff)

fixed the DCO failure.