Init commit

Signed-off-by: Aisuko <urakiny@gmail.com>

app.py

@@ -0,0 +1,59 @@
+import gradio as gr
+import torch
+from torch import LongTensor, FloatTensor
+from transformers import AutoModelForCausalLM, AutoTokenizer, StoppingCriteria, StoppingCriteriaList, TextIteratorStreamer
+from threading import Thread
+
+tokenizer = AutoTokenizer.from_pretrained("togethercomputer/RedPajama-INCITE-Chat-3B-v1")
+model = AutoModelForCausalLM.from_pretrained("togethercomputer/RedPajama-INCITE-Chat-3B-v1", torch_dtype=torch.bfloat16)
+
+
+class StopOnTokens(StoppingCriteria):
+    def __call__(self, input_ids: LongTensor, scores: FloatTensor, **kwargs) -> bool:
+        stop_ids=[29,0]
+        for stop_id in stop_ids:
+            if input_ids[0][-1]==stop_id:
+                return True
+        return False
+
+def predict(message, history):
+    try:
+        history_transformer_format = history+[[message, ""]]
+        stop=StopOnTokens()
+
+        messages="".join(["".join(["\n<human>:"+item[0], "\n<bot>:"+item[1]]) for item in history_transformer_format])
+
+
+        model_inputs =tokenizer([messages], return_tensors="pt")
+        streamer=TextIteratorStreamer(
+            tokenizer,
+            timeout=10.,
+            skip_prompt=True,
+            skip_special_tokens=True
+        )
+
+        generate_kwargs=dict(
+            model_inputs,
+            streamer=streamer,
+            max_new_tokens=1024,
+            do_sample=True,
+            top_p=0.95,
+            top_k=1000,
+            temperature=1.0,
+            num_beams=1,
+            stopping_criteria=StoppingCriteriaList([stop])
+        )
+
+        t=Thread(target=model.generate, kwargs=generate_kwargs)
+        t.start()
+
+        partical_message=""
+        for new_token in streamer:
+            if new_token !='<':
+                partical_message+=new_token
+                yield partical_message
+    except Exception as e:
+        yield "Sorry, I don't understand that."
+
+
+gr.ChatInterface(predict).queue().launch()

requirements.txt

@@ -0,0 +1,2 @@
+torch==2.1.1
+transformers==4.35.2