https://blog.wongcw.com/2022/08/03/%e5%85%bc%e4%bd%b5opencapi-%ef%bc%8ccxl-%e5%b0%87%e4%b8%80%e7%b5%b1cpu-%e4%ba%92%e9%80%a3%e6%a8%99%e6%ba%96/