https://forum.jogamp.org/HelloJOCL-Problems-on-MacOSX-tp2456996p2460296.html
I introduced the NPE regression yesterday night. Please take build 276
line 52 creates the CLCommandQueue on the fastest device. You could
does not work with some drivers. Thats why most demos/tests hardcode
> Michael, thanks for taking the time to reply.
>
> Decreasing the element count seemed to overcome the out of memory problem.
>
> Howeevr, the worksize is still a problem.The MacBook Pro has both an Nvidia
> GeForce GT 330M and Intel integrated graphics; I am forcing it to use the
> former. I get two devices reported using CLInfo:
> CL_DEVICE_NAME GeForce GT 330M Intel(R) Core(TM) i7 CPU M 620 @ 2.67GHz
> and respectively
> CL_DEVICE_MAX_WORK_GROUP_SIZE 512 1
>
> So I don't really understand why that value of 256 is failing. In fact even
> a worksize as small as 2 fails. Maybe it is using the CPU instead of the
> GPU?
>
> If I set it to 1, I then get a different error:
> Exception in thread "main" java.lang.NullPointerException
> at com.jogamp.opencl.CLContext.release(CLContext.java:486)
> at com.jogamp.opencl.CLContext.release(CLContext.java:504)
> at HelloJOCL.main(HelloJOCL.java:54)
>
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