[jpascucci-nv]

Description

closes #3180

cuDSS 1.0 changed the Linux SONAME from libcudss.so.0 to libcudss.so.1 and the Windows DLL name from cudss64_0.dll to cudss64_1.dll. This caused exact-name discovery to report the newly released library as missing in nightly CI.

Prefer the 1.x names while retaining the 0.x names as compatibility fallbacks. Also preload NVRTC when available because cuDSS 1.0 requires it at load time.

Add regression coverage for the supported names and update the 1.8.4 release notes.

Tests: pixi run test (1616 passed, 5 skipped)

Checklist

• New or existing tests cover these changes.
• The documentation is up to date with these changes.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Source mode: Auto
• Repository: NVIDIA/cuda-python
• Branch: main
• File: .coderabbit.yaml
• Commit: 903fbcc
• Layers: Repository YAML
• Review profile: CHILL
• Plan: Enterprise
• Run ID: 4b5d40d2-84a4-4e46-a106-b165858e821a

📥 Commits

Reviewing files that changed from the base of the PR and between 903fbcc and 4140f76.

📒 Files selected for processing: 3

• cuda_pathfinder/cuda/pathfinder/_dynamic_libs/descriptor_catalog.py
• cuda_pathfinder/docs/source/release/1.8.4-notes.rst
• cuda_pathfinder/tests/test_descriptor_catalog.py

Included review availability: This review used your included allowance. Your plan provides up to 12 included reviews per hour; 11 remain after this review.

📝 Summary

Summary by CodeRabbit

• New Features
  • Added support for recognizing cuDSS 1.0 library names on Linux and Windows, while retaining support for cuDSS 0.x names.
  • NVRTC is now loaded when available alongside cuDSS, supporting environments where it is an optional dependency.

The cuDSS descriptor now recognizes cuDSS 1.0 library names on Linux and Windows, retains 0.x names, and lists NVRTC as an optional dependency. A catalog test checks the library names and dependency metadata. Release notes document these changes.

Changes: cuDSS library metadata

Layer / File(s)	Summary
Descriptor metadata and validation cuda_pathfinder/cuda/pathfinder/_dynamic_libs/descriptor_catalog.py, cuda_pathfinder/tests/test_descriptor_catalog.py, cuda_pathfinder/docs/source/release/1.8.4-notes.rst	The descriptor adds cuDSS 1.0 library names and optional NVRTC. The test checks the library names and dependency metadata. The release notes document the changes.

Assessment against linked issues

Objective	Addressed	Explanation
Restore healthy nightly optional-deps scheduled CI runs [#3180]	❓	The issue does not identify the failure cause, so it is unclear whether these cuDSS descriptor changes resolve it.

Suggested reviewers: cpcloud

Priority: ➖ Normal

Change: Bug fix

Merge Risk: ⚪ Minimal · up to 1b6b1

Merge Risk: ⚪ Minimal · up to 1b6b1

The cuDSS naming and optional NVRTC updates are ready to merge with normal checks.

✨ Finishing Touches: 💡 1

🛠️ Fix failing CI checks: 💡

• Commit to this branch
• Create a new PR

• Autofix · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

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[rwgk]

Thanks @jpascucci-nv!

[github-actions]

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