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async_work_group_copy

Question asked by boxerab on Feb 4, 2016

If I am running a kernel on a GCN device, and my workgroup sizes is <= 64, do all work items need to encounter

async_work_group_copy ?  I've asked a similar question in the past about work items encountering memory barriers,

and I was told that barriers are not needed in this case.

 

Thanks,

Aaron

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