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Altera_Forum
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8 years ago

Obtaining different results while executing a kernel on GPU or FPGA

Hello, I have got another question concerning OpenCL. My problem: When I execute the same kernel on GPU and on FPGA (pre-compiled binary), I get different results when I read the buffer ...
Altera_Forum's avatar
Altera_Forum
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8 years ago

How different are the results? If the results are only different in the last few digits of the numbers, then it is probably caused by some rounding difference. Note that if you use --fpc or --fp-relaxed for FPGA compilation, output of floating-point operations will be different.