How to load model with half-precision, such as float16 since only have limited gpu memory

[HiddenAlaska]

Description of the bug

can not load model with half precision. And haven't figured out how to transfer model to CPU or GPU?

To Reproduce

run model gpt-j-6B as in the demo
use local huggingface method

Expected behavior

return a repsonse.

Error Logs/Screenshots

requests.exceptions.HTTPError: {'message': '"LayerNormKernelImpl" not implemented for 'Half''}

Environment (please complete the following information)

• OS: [e.g. Ubuntu 20.04]

Thanks in advance.