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h3-blackwell-runtime/research/vortex_exact_attention/PROVENANCE.md
Daniel Maddern c58e4c6d12 Validate Vortex attention capabilities
2026-08-26 14:44:28 +07:00

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Probe Provenance

The Phase 2A probes are original isolated capability microkernels. They do not contain the SageAttention mainloop or implement attention.

The inline MMA operand signatures are derived from SageAttention 2.2.0 csrc/mma.cuh at commit d1a57a546c3d395b1ffcbeecc66d81db76f3b4b5. That file is Apache-2.0 and itself records adaptation from FlashInfer 0.1.5. The local probe retains the required attribution in its source header.

Reference:

No CUTLASS, SageAttention, FlashAttention, or Sol source is copied into the Vortex backend. Production remains unchanged.