had to change config

configs/config.py

@@ -182,9 +182,9 @@ def get_config():
     parser.add_argument("--cuda_deterministic", action='store_false', 
                         default=True, help="by default, make sure random seed effective. if set, bypass such function.")
     parser.add_argument("--n_training_threads", type=int,
-                        default=20, help="Number of torch threads for training")
+                        default=1, help="Number of torch threads for training")
     parser.add_argument("--n_rollout_threads", type=int, 
-                        default=1, help="Number of parallel envs for training rollouts")
+                        default=20, help="Number of parallel envs for training rollouts")
     parser.add_argument("--n_eval_rollout_threads", type=int, 
                         default=1, help="Number of parallel envs for evaluating rollouts")
     parser.add_argument("--n_render_rollout_threads", type=int,