In fact, the RISC-V V (Vector) extension supports vector "shapes", so you can take a f32x16 vector and make it a f32x4x4 4x4 matrix, and then multiplying it wit

In fact, the RISC-V V (Vector) extension supports vector "shapes", so you can take a f32x16 vector and make it a f32x4x4 4x4 matrix, and then multiplying it with another f32x4x4 vector will do a 4x4 * 4x4 matrix multiplication, in hardware. IIUC this shapes generalize to tensors, so you can use this hardware units to, e.g., implement DNNs, similar to nvidia's tensor cores.