Add PyTorch stable ABI extension for libtorch compatibility#2813

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pstjohn wants to merge 3 commits intoNVIDIA:mainfrom

pstjohn:pstjohn/libtorch-stable-abi-clean

Commits on Apr 2, 2026

Replace pybind11 extension with PyTorch stable ABI
pstjohn
committed

Commits on Apr 3, 2026

Fix stable ABI test failures across B200, H100, and L40

pstjohn
and
claude
committed
Add missing_fusions.md tracking stable ABI performance gaps

pstjohn
and
claude
committed