try temp folder

app.py

@@ -24,18 +24,22 @@ def run_on_gpu(input_point_cloud: gr.utils.NamedString,
 
     sys.path.append(os.path.abspath('ppsurf'))
     import subprocess
+    import uuid
 
     in_file = '{}'.format(input_point_cloud.name)
-    out_dir = os.path.dirname(in_file)
-    out_subdir = os.path.join(out_dir, os.path.basename(in_file))
+
+    rand_hash = uuid.uuid4().hex
+    out_dir = '/tmp/outputs/{}'.format(rand_hash)
     out_file_basename = os.path.basename(in_file) + '.ply'
     out_file = os.path.join(out_dir, os.path.basename(in_file), out_file_basename)
+    out_file_gradio = os.path.splitext(in_file)[0] + '_ppsurf.ply'
     print('in_file:', in_file)
     print('out_dir:', out_dir)
-    print('out_subdir:', out_subdir)
     print('out_file:', out_file)
+    print('out_file_gradio:', out_file_gradio)
     os.makedirs(out_dir, exist_ok=True)
-    os.makedirs(out_subdir, exist_ok=True)
+    import shutil
+    shutil.copyfile(src=out_file, dst=out_file_gradio)
 
     model_path = 'models/ppsurf_50nn/version_0/checkpoints/last.ckpt'