diff --git a/pilot/model/guanaco_llm.py b/pilot/model/guanaco_llm.py new file mode 100644 index 000000000..627179dc5 --- /dev/null +++ b/pilot/model/guanaco_llm.py @@ -0,0 +1,54 @@ +import torch +from threading import Thread +from transformers import TextIteratorStreamer, StoppingCriteriaList, StoppingCriteria + + +def guanaco_generate_output(model, tokenizer, params, device, context_len=2048): + """Fork from: https://github.com/KohakuBlueleaf/guanaco-lora/blob/main/generate.py""" + tokenizer.bos_token_id = 1 + print(params) + stop = params.get("stop", "###") + prompt = params["prompt"] + query = prompt + print("Query Message: ", query) + + input_ids = tokenizer(query, return_tensors="pt").input_ids + input_ids = input_ids.to(model.device) + + streamer = TextIteratorStreamer( + tokenizer, timeout=10.0, skip_prompt=True, skip_special_tokens=True + ) + + tokenizer.bos_token_id = 1 + stop_token_ids = [0] + + class StopOnTokens(StoppingCriteria): + def __call__( + self, input_ids: torch.LongTensor, scores: torch.FloatTensor, **kwargs + ) -> bool: + for stop_id in stop_token_ids: + if input_ids[0][-1] == stop_id: + return True + return False + + stop = StopOnTokens() + + generate_kwargs = dict( + input_ids=input_ids, + max_new_tokens=512, + temperature=1.0, + do_sample=True, + top_k=1, + streamer=streamer, + repetition_penalty=1.7, + stopping_criteria=StoppingCriteriaList([stop]), + ) + + t = Thread(target=model.generate, kwargs=generate_kwargs) + t.start() + + out = "" + for new_text in streamer: + out += new_text + yield new_text + return out \ No newline at end of file