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Altera_Forum
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9 years ago

Confusion about execution of NDRange kernel and single work-item kernel

Hello, I'm a bit confused about the difference between the execution of NDRange kernel and single work-item kernel on FPGA. How does each work-item in the NDRange execute in parallel on FP...
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Altera_Forum
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9 years ago

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Thanks,HRZ.

So,in a single work-item kernel,for a loop with iteration dependencies,even with the unroll paragma before the loop,the compiler will not unroll it,right?

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It will, but you will not get an II (Initiation Interval) of one anymore, and the II will increase as you unroll more. This way, you will just end up wasting more area without getting higher performance.