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R0CKSTAR
1cbf7e79f0
The MUSA vendor header never defined __CUDA_ARCH__, so every architecture test in the shared ggml-cuda sources evaluated to 0. Kernel bodies gated on the architecture therefore compiled to nothing, for example the q8_0 -> f16 dequantization kernel in convert.cu, whose NO_DEVICE_CODE fallback expands to an empty body in host code. Report the newest architecture like the HIP backend does and exclude the NVIDIA-only features explicitly, as they are not usable on MUSA. Define it for device passes only: CUB uses defined(__CUDA_ARCH__) to detect device compilation, which is also how nvcc behaves. Drop the now-redundant defined(__CUDA_ARCH__) checks in the architecture comparisons: __CUDA_ARCH__ is undefined in host passes for CUDA and MUSA, and HIP defines it for every pass, so both forms select the same branch.