opebCL 1.1 printf

opebCL 1.1 printf

Hi I construct kernel from the string

const char *source[] = {

"#pragma OPENCL EXTENSION cl_intel_printf : enable\\n",

"__kernel void ", testname,



" printf(\\"",




But I get error: can't enable all OpenCL extensions or unrecognized OpenCL extension
I took the last ocl 1.1 version from the intel site.
How can I solve this issue?

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I use
#pragma OPENCL EXTENSION all : enable
and the printing to console window works fine for me (Core i5) with last version of the SDK.

Hi Jiri,

Thank you for the post - we will have a look at this item
Could you provide the OS your were using?


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