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ADua0's avatar
ADua0
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Intel opencl Dynamic profiler report

I am looking at my report generated by compiling my opencl kernel for intel fpga . So in that report I am see average write burst and read burst measured as 1 but optimal possible is 16. I believe ha...
HRZ's avatar
HRZ
Icon for Frequent Contributor rankFrequent Contributor
6 years ago

What the profiler is reporting is really not that important as long as you are saturating the memory bandwidth. Calculate how much data you are moving in and out of the FPGA (to/from external memory) and divide it by the kernel run time and compare against the theoretical peak throughput of the external memory. If you are getting at least 70-80% of the memory throughput, you are at near-optimal performance.