h3-blackwell-runtime/research/shared_cuda_experimental_worktree

Shared CUDA Experimental Worktree Recovery

This capsule preserves the current worktree-versus-HEAD CUDA extension changes. The patch is intentionally not described as isolated: the same translation units contain several requested experiments and shared helpers.

Source baseline: bee998d (HEAD at recovery time).

patches/0001-shared-cuda-experiments.patch contains:

• Sage2 P1 fused Q/K RMSNorm, split-half RoPE, and Q INT8 preparation.
• Sage2 P2 direct V scale, E4M3 quantization, padding, and permutation.
• NVFP4 modulation-to-pack and SwiGLU-to-FC2-pack fused producers.
• Generalized physical block-scale swizzle and approximate reciprocal encoding.
• Caller-owned NVFP4 output buffers used by bounded-ring attempts.
• QKV split/layout kernels, including the vectorized 16-byte store path.

The patch also contains the shared Python wrappers required to express those entry points. It must not be applied wholesale to production without splitting and revalidation. Nothing in this directory is connected to runtime dispatch or build defaults.