CL_DEVICE_MAX_WORK_GROUP_SIZE  211 3rdparty/include/opencl/1.2/CL/cl.h #define CL_DEVICE_MAX_WORK_GROUP_SIZE               0x1004
CL_DEVICE_MAX_WORK_GROUP_SIZE  381 modules/core/src/ocl.cpp #define CL_DEVICE_MAX_WORK_GROUP_SIZE               0x1004