bugfix on n_threads default

app.py

@@ -193,7 +193,7 @@ def main():
     logging.basicConfig(level=logging.INFO)
     default = '256M'
     default_verbose = True
-    default_threads = os.cpu_count() or 1
+    default_threads = 2
     mf, cf = get_weight_files(default)
 
     with gr.Blocks() as demo:
@@ -203,7 +203,7 @@ def main():
             model_dd  = gr.Dropdown(mf, value=mf[0], label='Decoder Weights')
             clip_dd   = gr.Dropdown(cf, value=cf[0], label='CLIP Weights')
             verbose_cb= gr.Checkbox(value=default_verbose, label='Verbose Mode')
-            thread_dd = gr.Slider(minimum=1, maximum=default_threads, step=1, value=2, label='CPU Threads (n_threads)')
+            thread_dd = gr.Slider(minimum=1, maximum=os.cpu_count(), step=1, value=default_threads, label='CPU Threads (n_threads)')
 
         def on_size_change(sz, verbose, n_threads):
             mlist, clist = get_weight_files(sz)