SOURCE.md

Source provenance

• Upstream repository: https://github.com/NVlabs/Sana
• Upstream branch: sol-engine
• Upstream commit: 8a26fb0ec9e353125ead798cb2e312d5ce48cded
• Upstream path: techniques/sparse_backends/sol_attn
• Kernel Hub target: Efficient-Large-Model/Sol-Attn

torch-ext/sol_attn contains the complete upstream package at the pinned commit. Its only packaging-level changes are semantically equivalent absolute-to-relative internal imports. Kernel Hub loads each kernel version under an isolated module name, so hard-coded sol_attn.* package imports would otherwise escape that namespace.

Given a checkout of the pinned Sana commit, verify the file inventory, all non-import source text, and import semantics with:

python tools/verify_upstream.py /path/to/Sana

The publishing process does not add files, workflows, or commits to NVlabs/Sana.