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fix mps rely on flash_atten #461

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fix mps rely on flash_atten #461

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dc3692c
fix mps rely on flash_atten
SavageBoth Aug 9, 2024
a242b44
fix mps rely on flash_atten
SavageBoth Aug 9, 2024
1502f6d
Merge remote-tracking branch 'origin/main'
SavageBoth Aug 13, 2024
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16 changes: 14 additions & 2 deletions web_demo_2.6.py
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,9 @@
import traceback
import re
import modelscope_studio as mgr

from typing import Union
from transformers.dynamic_module_utils import get_imports
from unittest.mock import patch

# README, How to run demo on different devices

Expand Down Expand Up @@ -65,7 +67,11 @@

model = load_checkpoint_and_dispatch(model, model_path, dtype=torch.bfloat16, device_map=device_map)
else:
model = AutoModel.from_pretrained(model_path, trust_remote_code=True, torch_dtype=torch.bfloat16)
if device == 'mps':
with patch("transformers.dynamic_module_utils.get_imports", fixed_get_imports):
model = AutoModel.from_pretrained(model_path, trust_remote_code=True, torch_dtype=torch.bfloat16)
else:
model = AutoModel.from_pretrained(model_path, trust_remote_code=True, torch_dtype=torch.bfloat16)
model = model.to(device=device)
tokenizer = AutoTokenizer.from_pretrained(model_path, trust_remote_code=True)
model.eval()
Expand All @@ -79,6 +85,12 @@
IMAGE_EXTENSIONS = {'.jpg', '.jpeg', '.png', '.bmp', '.tiff', '.webp'}
VIDEO_EXTENSIONS = {'.mp4', '.mkv', '.mov', '.avi', '.flv', '.wmv', '.webm', '.m4v'}

def fixed_get_imports(filename: Union[str, os.PathLike]) -> list[str]:
imports = get_imports(filename)
if not torch.cuda.is_available() and "flash_attn" in imports:
imports.remove("flash_attn")
return imports

def get_file_extension(filename):
return os.path.splitext(filename)[1].lower()

Expand Down