mirror of
https://github.com/oobabooga/text-generation-webui.git
synced 2024-10-30 14:10:14 +01:00
33 lines
1.0 KiB
Python
33 lines
1.0 KiB
Python
'''
|
|
This code was copied from
|
|
|
|
https://github.com/PygmalionAI/gradio-ui/
|
|
|
|
'''
|
|
|
|
import torch
|
|
import transformers
|
|
|
|
|
|
class _SentinelTokenStoppingCriteria(transformers.StoppingCriteria):
|
|
|
|
def __init__(self, sentinel_token_ids: torch.LongTensor,
|
|
starting_idx: int):
|
|
transformers.StoppingCriteria.__init__(self)
|
|
self.sentinel_token_ids = sentinel_token_ids
|
|
self.starting_idx = starting_idx
|
|
|
|
def __call__(self, input_ids: torch.LongTensor,
|
|
_scores: torch.FloatTensor) -> bool:
|
|
for sample in input_ids:
|
|
trimmed_sample = sample[self.starting_idx:]
|
|
# Can't unfold, output is still too tiny. Skip.
|
|
if trimmed_sample.shape[-1] < self.sentinel_token_ids.shape[-1]:
|
|
continue
|
|
|
|
for window in trimmed_sample.unfold(
|
|
0, self.sentinel_token_ids.shape[-1], 1):
|
|
if torch.all(torch.eq(self.sentinel_token_ids, window)):
|
|
return True
|
|
return False
|