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why need "warmup" in image modulate app?

Fu_J_Intel
Employee
‎06-10-2016 10:54 AM
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Hi Robert,

In image modulate app,  before actual clEnqueueNDRangeKernel()  you have a "warmup" call to clEnqueueNDRangeKernel() .  why do you need the "warmup"?  To me, "warmup" doubles computation load.

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Robert_I_Intel
Employee
‎06-13-2016 03:15 PM
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Hi Jeffrey,

The warmup is just to increase accuracy of kernel time measurements.

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