b12329

CUDA: Optimize prefil via fuse of w_s scale in epilogue MMQ for nvfp4 checkpoints (#26048)

• ggml-cuda: Apply NVFP4 weight scale in MMQ write-back

• ggml-cuda: Fuse mul_mat(_id) + scale into MMQ

• ggml-cuda: Tests for the fused scale

• ggml-cuda: reuse existing graph to test fusion in mmq epiloque

• ggml-cuda: rename test_mul_mat_vec_fusion to test_mul_mat_fusion for consistency

• ggml-cuda: refine comments for clarity on MMQ dispatch and fusion checks in mul_mat functions

• ggml-cuda: refactor fusion checks for mul_mat operations and remove unused function

Website:

• https://llama.app

Attestations:

• https://github.com/ggml-org/llama.cpp/attestations/66922334

macOS/iOS:

• macOS Apple Silicon (arm64)
• macOS Apple Silicon (arm64, KleidiAI enabled) DISABLED
• macOS Intel (x64)
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• Ubuntu x64 (CPU)
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• Ubuntu 24.04 s390x (CPU)
• Ubuntu 26.04 s390x (CPU)
• Ubuntu 26.04 s390x (zDNN)
• Ubuntu x64 (Vulkan)
• Ubuntu arm64 (Vulkan)
• Ubuntu x64 (CUDA 12) - CUDA 12.8 libraries
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• Windows x64 (CUDA 13) - CUDA 13.5 DLLs
• Windows arm64 (CUDA 13) - CUDA 13.5 DLLs
• Windows x64 (Vulkan)
• Windows arm64 (Vulkan)
• Windows x64 (OpenVINO)
• Windows x64 (SYCL)
• Windows x64 (ROCm 10.0)

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• UI