https://blog.wongcw.com/2020/11/22/amd%e5%b0%87%e5%b9%ab%e5%8a%a9%e8%8b%b1%e5%81%89%e9%81%94gpu%e5%bc%95%e5%85%a5smart-access-memory%e5%8a%9f%e8%83%bd/