Method preprocess_linear_weight

cake-core/src/backends/rocm/mod.rs:359–363

(&self, weight: &Tensor)

    fn device(&self) -> &Device { &self.device }

    fn preprocess_linear_weight(&self, weight: &Tensor) -> Result<Tensor> {
        // Pre-ensure contiguous layout at load time to avoid runtime copies.
        // Don't change dtype — linear_forward expects matching dtypes with input.
        if weight.is_contiguous() { Ok(weight.clone()) } else { weight.contiguous() }
    }

    fn matmul(&self, a: &Tensor, b: &Tensor) -> Result<Tensor> {
        let orig = a.dtype();