mirror of
https://github.com/hwchase17/langchain
synced 2024-11-08 07:10:35 +00:00
bd780a8223
This adds support for running RWKV with pytorch. https://github.com/hwchase17/langchain/issues/2398 This does not yet support rwkv.cpp
36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
# flake8: noqa
|
|
"""Test rwkv wrapper."""
|
|
import os
|
|
from urllib.request import urlretrieve
|
|
|
|
from langchain.llms import RWKV
|
|
import warnings
|
|
import pytest
|
|
|
|
|
|
def _download_model() -> str:
|
|
"""Download model.
|
|
From https://huggingface.co/BlinkDL/rwkv-4-pile-169m/resolve/main/RWKV-4-Pile-169M-20220807-8023.pth,
|
|
"""
|
|
model_url = "https://huggingface.co/BlinkDL/rwkv-4-pile-169m/resolve/main/RWKV-4-Pile-169M-20220807-8023.pth"
|
|
tokenizer_url = (
|
|
"https://github.com/BlinkDL/ChatRWKV/blob/main/v2/20B_tokenizer.json?raw=true"
|
|
)
|
|
local_filename = model_url.split("/")[-1]
|
|
|
|
if not os.path.exists("20B_tokenizer.json"):
|
|
urlretrieve(tokenizer_url, "20B_tokenizer.json")
|
|
if not os.path.exists(local_filename):
|
|
urlretrieve(model_url, local_filename)
|
|
|
|
return local_filename
|
|
|
|
|
|
@pytest.mark.filterwarnings("ignore::UserWarning:")
|
|
def test_rwkv_inference() -> None:
|
|
"""Test valid gpt4all inference."""
|
|
model_path = _download_model()
|
|
llm = RWKV(model=model_path, tokens_path="20B_tokenizer.json", strategy="cpu fp32")
|
|
output = llm("Say foo:")
|
|
assert isinstance(output, str)
|