You needs to install proper graphics driver to detect the gpu device. By default, APP SDK provides cpu runtime only which cannot recognize the gpu device.
For driver information, I think, this thread is related to below one where a link to the driver is given:
You needs to install proper graphics driver to detect the gpu device. By default, APP SDK provides cpu runtime only which cannot recognize the gpu device.
For driver information, I think, this thread is related to below one where a link to the driver is given: