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Accelerate The Inference Speed Of Wan2.2 On NVIDIA Thor T5000 - #1489

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Michael20070814:try/fuse_qkv
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Accelerate The Inference Speed Of Wan2.2 On NVIDIA Thor T5000#1489
Michael20070814 wants to merge 1 commit into
ModelTC:mainfrom
Michael20070814:try/fuse_qkv

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Replace the triton's self-attention backend with cutsdsl's.
Implement a more efficient quantization kernel for converting FP16 to FP4
Split the FFN to 2 parts
Use the cuBlaslt for the QKV GEMM
Tune the QKV/FFN's GEMM algorithm for the best shape

Before:
image

After:
image

Add NVFP4 cuBLASLt projections and fused split-N FFN epilogues, CuTeDSL sparse BF16/FP8 attention, and Thor-specific build and configuration support. Preserve upstream interfaces and include regression coverage.

Co-Authored-By: Claude Code <noreply@anthropic.com>
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