Transpose an 8×8 float using AVX/AVX2
I already answered this question Fast memory transpose with SSE, AVX, and OpenMP. Let me repeat the solution for transposing an 8×8 float matrix with AVX. Let me know if this is any faster than using 4×4 blocks and _MM_TRANSPOSE4_PS. I used it for a kernel in a larger matrix transpose which was memory bound … Read more