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Altera_Forum
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12 years ago

Barrier State Buffer Implementation

Page 68 of this tutorial (http://tcfpga.org/fpga2013/opencl_tutorial.pdf) says that barriers buffer live variables of work-items. What memory is this buffer implemented in? Does it use block RAMs?
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Altera_Forum
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12 years ago

So if I'm memory block limited, and I can't change my algorithm to use fewer (local) barriers, I can 1) shrink the work-group size so the buffers will be smaller, or 2) change my algorithm to use less local memory? Are there any other memory block pressures?

When you say typically, does that mean that registers can be used for these buffers? Or global memory?