/* Now, do a single stage. That means N_t / 2 cycles. Since we do 2\r
* cycles on every iteration, plus one before and after the loop,\r
* we will loop N_t / 4 - 1 times. */\r
/* Now, do a single stage. That means N_t / 2 cycles. Since we do 2\r
* cycles on every iteration, plus one before and after the loop,\r
* we will loop N_t / 4 - 1 times. */\r