fix 2337da4

missing brace } after cherry-pick

Author: jeffdaily

aten/src/ATen/cuda/CUDABlas.cpp

@@ -1572,6 +1572,15 @@ void scaled_gemm(
 #else
     TORCH_CHECK(false, "scaled_gemm with `torch.float8_e8m0fnu` scales is only supported for CUDA 12.8 and above");
 #endif // CUDA_VERSION >= 12080
+  } else if (mat1_scale_dtype == kFloat && mat2_scale_dtype == kFloat && use_rowwise) {
+#if CUDA_VERSION >= 12090 || (defined(USE_ROCM) && defined(HIPBLASLT_OUTER_VEC))
+    computeDesc.setAttribute(CUBLASLT_MATMUL_DESC_A_SCALE_MODE, CUBLASLT_MATMUL_MATRIX_SCALE_OUTER_VEC_32F);
+    computeDesc.setAttribute(CUBLASLT_MATMUL_DESC_B_SCALE_MODE, CUBLASLT_MATMUL_MATRIX_SCALE_OUTER_VEC_32F);
+#elif defined(USE_ROCM) && defined(HIPBLASLT_VEC_EXT)
+    // no-op here for older hipblaslt ext enums, to avoid TORCH_CHECK below
+#else
+    TORCH_CHECK(false, "scaled_gemm with `torch.float` outer vector scaling is only supported for CUDA 12.9 and above");
+#endif // if CUDA_VERSION >= 12090
   }
 
   size_t workspaceSize = _getWorkspaceSize();