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__global memory on-chip

Altera_Forum
Honored Contributor II
‎03-26-2015 07:31 PM
1,051 Views

Hi folks, 

 

Is it possible to have in some way a __global memory element or buffer implemented in on-chip registers or memory? 

 

It would be very useful for performing atomic operations from many work-items. Otherwise, the atomic functions on data in off-chip RAM is way too slow. It would also be great for transferring some data from kernel to kernel without having to go to off-chip RAM. 

 

It could be doable in OpenCL 2.0 with the program scope variables in global address space. In fact, Xilinx has it...
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