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# Importing libraries | |
from llama_cpp import Llama | |
import gradio as gr | |
import psutil | |
# Initing things | |
print("! INITING LLAMA MODEL !") | |
llm = Llama(model_path="./model.bin") # LLaMa model | |
llama_model_name = "TheBloke/dolphin-2.2.1-AshhLimaRP-Mistral-7B-GGUF" | |
print("! INITING DONE !") | |
# Preparing things to work | |
title = "llama.cpp API" | |
desc = '''<h1>Hello, world!</h1> | |
This is showcase how to make own server with Llama2 model.<br> | |
I'm using here 7b model just for example. Also here's only CPU power.<br> | |
But you can use GPU power as well!<br><br> | |
<h1>How to GPU?</h1> | |
Change <code>`CMAKE_ARGS="-DLLAMA_BLAS=ON -DLLAMA_BLAS_VENDOR=OpenBLAS`</code> in Dockerfile on <code>`CMAKE_ARGS="-DLLAMA_CUBLAS=on"`</code>. Also you can try <code>`DLLAMA_CLBLAST`</code> or <code>`DLLAMA_METAL`</code>.<br><br> | |
<h1>How to test it on own machine?</h1> | |
You can install Docker, build image and run it. I made <code>`run-docker.sh`</code> for ya. To stop container run <code>`docker ps`</code>, find name of container and run <code>`docker stop _dockerContainerName_`</code><br> | |
Or you can once follow steps in Dockerfile and try it on your machine, not in Docker.<br> | |
<br>''' + f"Memory used: {psutil.virtual_memory()[2]}<br>" + ''' | |
Powered by <a href="https://github.com/abetlen/llama-cpp-python">llama-cpp-python</a> and <a href="https://www.gradio.app/">Gradio</a>.<br><br>''' | |
# Loading prompt | |
with open('system.prompt', 'r', encoding='utf-8') as f: | |
prompt = f.read() | |
with open('system.message', 'r', encoding='utf-8') as f: | |
system_message = f.read() | |
def generate_answer(request: str, max_tokens: int = 256, custom_prompt: str = None): | |
logs = f"Request: {request}\nMax tokens: {max_tokens}\nCustom prompt: {custom_prompt}\n" | |
try: | |
maxTokens = max_tokens if 16 <= max_tokens <= 256 else 64 | |
userPrompt = prompt.replace("{prompt}", request) | |
userPrompt = userPrompt.replace( | |
"{system_message}", | |
custom_prompt if isinstance(custom_prompt, str) and len(custom_prompt.strip()) > 1 and custom_prompt.strip() not in ['', None, ' '] else system_message | |
) | |
logs += f"\nFinal prompt: {userPrompt}\n" | |
except: | |
return "Not enough data! Check that you passed all needed data.", logs | |
try: | |
# this shitty fix will be until i willnt figure out why sometimes there is empty output | |
counter = 1 | |
while counter <= 10: | |
logs += f"Attempt {counter} to generate answer...\n" | |
output = llm(userPrompt, max_tokens=maxTokens, stop=["User:"], echo=False) | |
text = output["choices"][0]["text"] | |
if len(text.strip()) > 1 and text.strip() not in ['', None, ' ']: | |
break | |
counter += 1 | |
logs += f"Final attempt: {counter}\n" | |
if len(text.strip()) <= 1 or text.strip() in ['', None, ' ']: | |
logs += f"Generated and aborted: {text}" | |
text = "Sorry, but something went wrong while generating answer. Try again or fix code. If you are maintainer of this space, look into logs." | |
logs += f"\nFinal: '''{text}'''" | |
return text, logs | |
except Exception as e: | |
print(e) | |
return "Oops! Internal server error. Check the logs of space/instance.", logs | |
print("\n\n\n") | |
print("! LOAD GRADIO INTERFACE !") | |
demo = gr.Interface( | |
fn=generate_answer, | |
inputs=[ | |
gr.components.Textbox(label="Input"), | |
gr.components.Number(value=256), | |
gr.components.Textbox(label="Custom system prompt"), | |
], | |
outputs=[ | |
gr.components.Textbox(label="Output"), | |
gr.components.Textbox(label="Logs") | |
], | |
title=title, | |
description=desc, | |
allow_flagging='never' | |
) | |
demo.queue() | |
print("! LAUNCHING GRADIO !") | |
demo.launch(server_name="0.0.0.0") |