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64 bit atomics

Question asked by boxerab on Mar 14, 2015
Latest reply on Mar 16, 2015 by boxerab

I would like to use 64 bit atomic_add on my HD 7700


I have added  the following line at the top of my kernel:


#pragma OPENCL EXTENSION cl_khr_int64_base_atomics : enable


But, when I try to perform atomic_add on a long, I get a compiler error:


no instance of overloaded function "atomic_add" matches the argument list.

This works fine with int.