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In CL 1.1 specification it is mentioned that compiler option -cl-denorms-are-zero says denormalized numbers may also be flushed to zero.

I'm using CPU on mac-mini as my OpenCL device. Is there a way to force FTZ?

kanna
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  • You could try executing the code from this answer somewhere in your program: http://stackoverflow.com/a/8217313/139746 – Pascal Cuoq Nov 04 '13 at 11:02

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