amdgpu doesn't do implicit sync, requires drivers to do it in IBs
maraeo at gmail.com
Mon May 25 22:05:14 UTC 2020
Bas and Michel wanted to discuss this. The main disadvantage of no implicit
(pipeline) sync within the same queue is that we get lower performance and
lower GPU utilization in some cases.
We actually never really needed the kernel to have implicit sync, because
all user mode drivers contained hacks to work without it.
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