I have a shared context with 4 devices and 4 queues. I want to start these queues syncronised repeatedly.
My idea is as follows…
i have a Active waitlist for events that e.g. containes the last memory transaction
clEnqueWaitForEvent(queue,the Active waitlist)
clEnqueMarker(queue,the next waitlist)
Active waitlist=next waitlist
This snippet in my mind creates a barrier in each queue that awaits the previous queue so when this is executed the last event will be Active when all queues are finished with their current work
Next snippet is to create events in the first queue as many as there are queues. The fist one awaits the last event in the preceeding snippet so the first queue will be filled with
The last snippet starts the NDR work where work in queue 0 awaits event 0, work in queue 1 awaits event 1 etc…
This just doesnt work however. Very slow and wrong result ?
Any clues how to do this sync better ?