CL_KERNEL_WORK_GROUP_SIZE  511 3rdparty/include/opencl/1.2/CL/cl.h #define CL_KERNEL_WORK_GROUP_SIZE                   0x11B0
CL_KERNEL_WORK_GROUP_SIZE  635 modules/core/src/ocl.cpp #define CL_KERNEL_WORK_GROUP_SIZE                   0x11B0