Thanks. Yes. Let me give you an example of the difficulties: The NN-512 code generator knows (with AVX-512) it can do an efficient (up to) 16x16 transpose, and

Thanks. Yes. Let me give you an example of the difficulties: The NN-512 code generator knows (with AVX-512) it can do an efficient (up to) 16x16 transpose, and makes heavy use of lane permutations. But with RISC-V vector instructions, you don't have that knowledge and you can't do the lane permutations efficiently.