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Altera_Forum's avatar
Altera_Forum
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8 years ago

Kernel performance with profiling

Hello again guys. Im struggle to understand the results from the profiler of two kernel versions (one with unroll factor of 128 and another with 32) The 32 unroll factor outperforms the 12...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

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If you are talking about the number reported by the profiler, I think it is in 32-bit words, not bytes.

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On profiler reports says that the max burst size is 16.. but 16 bits, bytes, number of requests?

bandwidth

Burst Size

The average burst size of the memory operation.If the memory system does not support burst mode (for example, on-chip RAM), no burst information will be available.

Average Burst Size=7.6(Max Burst=16)

Global memory