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Honored Contributor

8 years ago

Different Kernel Executions times

Hi! I'm getting a strange thing when executing a kernel multiples times (inside a loop). The first execution always take a long time compared to the others.. Example: Number of calls: 10...

Altera_Forum

Honored Contributor

8 years ago

The function you are using is a high-precision timer. I personally also use the same function on Windows. This function provides accurate time measurement up to a few microseconds or maybe even less.

The documentation for OpenCL's built-in profiler is here:

https://www.khronos.org/registry/opencl/sdk/1.0/docs/man/xhtml/clgeteventprofilinginfo.html

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Different Kernel Executions times

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