NVIDIA / NVIDIA/CUDALibrarySamples
Question about minimum CUDA version for vector/block scaling modes in cublasLtMatmul
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@hbabak is already working on this.
Since Apr 16, 2026.
cuBLASLt
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Description
Hi,
I would like to ask about the minimum CUDA version required for using the following scaling modes in cublasLtMatmul:
CUBLASLT_MATMUL_DESC_A_SCALE_POINTERset with
CUBLASLT_MATMUL_MATRIX_SCALE_VEC128_32FCUBLASLT_MATMUL_DESC_B_SCALE_POINTERset with
CUBLASLT_MATMUL_MATRIX_SCALE_BLK128x128_32F
When using these scale modes in cublasLtMatmul, what is the minimum supported CUDA version?
If there are also specific requirements on GPU architecture or cuBLASLt version, I would appreciate it if you could clarify that as well.
Thanks!
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