On 14 Feb 2014, at 21:53, Gerriet M. Denkmann <gerr...@mdenkmann.de> wrote:

> I am trying to build the Basic Programming Sample in: 
> <https://developer.apple.com/library/mac/documentation/Performance/Conceptual/OpenCL_MacProgGuide/ExampleHelloWorld/Example_HelloWorld.html#//apple_ref/doc/uid/TP40008312-CH112-SW2>
> 
> I have myKernel.cl:
> 
> __kernel void squareq(  __global float* input, __global float* output )
> {
>       int i = get_global_id(0);
>       printf("i %d\n",i);                     //      never seen
>       output[i] = input[i] * input[i];
> }                                                                      
> 
> and myKernel.cl.h:
> 
> void squareq_kernel( cl_ndrange *range, float* input,  float* output);
> 
[...]
> 
> What am I doing wrong?

Do NOT create your own "myKernel.cl.h"; do NOT add this file to Xcode.
If you did violate this rule (as I did), rename the file (and maybe change the 
name of the kernel as well) and start again.

Also I also removed the underscores in the kernel definition. Not sure whether 
this is necessary.

Maybe this might help someone.

Gerriet.



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