[BUG] "topk_cpu" not implemented for 'Half'

[Lyaaaaaaaaaaaaaaa]

Describe the bug
The server crashes when using float16 without CUDA.

To Reproduce
Steps to reproduce the behavior:

1. Run without CUDA
2. Load an AI with float16
3. Generate something
4. See error

Expected behavior
It should fall back to float32 to avoid crash.

UserWarning: You are calling .generate() with the input_ids being on a device type different than your model's device. input_ids is on cpu, whereas the model is on cuda. You may experience unexpected behaviors or slower generation. Please make sure that you have put input_ids to the correct device by calling for example input_ids = input_ids.to('cuda') before running .generate().
warnings.warn(
"topk_cpu" not implemented for 'Half'

[Lyaaaaaaaaaaaaaaa]

"Fixed" by commit 6b76d8d