Update

app.py

@@ -8,32 +8,31 @@ import shlex
 import subprocess
 
 import gradio as gr
+import torch
 
 from app_colorization import create_demo as create_demo_colorization
 from app_superresolution import create_demo as create_demo_superresolution
 
-DESCRIPTION = '''# DDNM-HQ
+DESCRIPTION = '# [DDNM-HQ](https://github.com/wyhuai/DDNM/tree/main/hq_demo)'
 
-This is an unofficial demo for [https://github.com/wyhuai/DDNM/tree/main/hq_demo](https://github.com/wyhuai/DDNM/tree/main/hq_demo).
-'''
 if (SPACE_ID := os.getenv('SPACE_ID')) is not None:
-    DESCRIPTION += f'''<p>For faster inference without waiting in queue, you may duplicate the space and upgrade to GPU in settings.<br/>
-<a href="https://huggingface.co/spaces/{SPACE_ID}?duplicate=true">
-<img style="margin-top: 0em; margin-bottom: 0em" src="https://bit.ly/3gLdBN6" alt="Duplicate Space"></a>
-<p/>
-'''
-
-MODEL_DIR = pathlib.Path('DDNM/hq_demo/data/pretrained')
-if not MODEL_DIR.exists():
-    MODEL_DIR.mkdir()
-    subprocess.run(shlex.split(
-        'wget https://openaipublic.blob.core.windows.net/diffusion/jul-2021/256x256_classifier.pt'
-    ),
-                   cwd=MODEL_DIR.as_posix())
-    subprocess.run(shlex.split(
-        'wget https://openaipublic.blob.core.windows.net/diffusion/jul-2021/256x256_diffusion.pt'
-    ),
-                   cwd=MODEL_DIR.as_posix())
+    DESCRIPTION += f'\n<p>For faster inference without waiting in queue, you may duplicate the space and upgrade to GPU in settings. <a href="https://huggingface.co/spaces/{SPACE_ID}?duplicate=true"><img style="display: inline; margin-top: 0em; margin-bottom: 0em" src="https://bit.ly/3gLdBN6" alt="Duplicate Space" /></a></p>'
+
+if torch.cuda.is_available():
+    DESCRIPTION += '\n<p>Running on GPU 🔥</p>'
+    MODEL_DIR = pathlib.Path('DDNM/hq_demo/data/pretrained')
+    if not MODEL_DIR.exists():
+        MODEL_DIR.mkdir()
+        subprocess.run(shlex.split(
+            'wget https://openaipublic.blob.core.windows.net/diffusion/jul-2021/256x256_classifier.pt'
+        ),
+                       cwd=MODEL_DIR.as_posix())
+        subprocess.run(shlex.split(
+            'wget https://openaipublic.blob.core.windows.net/diffusion/jul-2021/256x256_diffusion.pt'
+        ),
+                       cwd=MODEL_DIR.as_posix())
+else:
+    DESCRIPTION += '\n<p>Running on CPU 🥶 This demo does not work on CPU.'
 
 with gr.Blocks(css='style.css') as demo:
     gr.Markdown(DESCRIPTION)
@@ -42,4 +41,4 @@ with gr.Blocks(css='style.css') as demo:
             create_demo_superresolution()
         with gr.TabItem(label='Colorization'):
             create_demo_colorization()
-demo.queue(max_size=5, api_open=False).launch()
+demo.queue(api_open=False, max_size=5).launch()