ConvolveNotify    492 magick/accelerate.c     NULL,(cl_device_type) CL_DEVICE_TYPE_GPU,ConvolveNotify,exception,&status);
ConvolveNotify    495 magick/accelerate.c       NULL,(cl_device_type) CL_DEVICE_TYPE_CPU,ConvolveNotify,exception,
ConvolveNotify    499 magick/accelerate.c       NULL,(cl_device_type) CL_DEVICE_TYPE_DEFAULT,ConvolveNotify,exception,