Add warning to run script

run_pretrained_openfold.py

@@ -182,7 +182,7 @@ if __name__ == "__main__":
     )
     parser.add_argument(
         "--cpus", type=int, default=4,
-        help="""Number of CPUs to use to run alignment tools"""
+        help="""Number of CPUs with which to run alignment tools"""
     )
     parser.add_argument(
         '--preset', type=str, default='full_dbs',
@@ -200,6 +200,12 @@ if __name__ == "__main__":
             "params_" + args.model_name + ".npz"
         )
 
+    if(args.model_device == "cpu" and torch.cuda.is_available()):
+        logging.warning(
+            """The model is being run on CPU. Consider specifying 
+            --model_device for better performance"""
+        )
+
     if(args.bfd_database_path is None and 
        args.small_bfd_database_path is None):
         raise ValueError(