作者freaky

話說我剛好看到的Intel Gen9 Skylake討論串，Intel人員Andrew Lauritzen的發言，這才是了解實際狀況的人會有的說法：

"From an API point of view, async compute is a way to provide an implementation with more potential parallelism to exploit. It is pretty analogous to SMT/hyper-threading: the API (multiple threads) are obviously supported on all hardware and depending on the workload and architecture it can increase performance in some cases where the different threads are using different hardware resources. However there is some inherent overhead to multithreading and an architecture that can get high performance with fewer threads (i.e. high IPC) is always preferable from a performance perspective."

從API的觀點來說，async compute是...