Update main.py (#2872)

examples/pytorch/ogb_lsc/PCQM4M/main.py

@@ -113,8 +113,8 @@ def main():
                         help='input batch size for training (default: 256)')
     parser.add_argument('--epochs', type=int, default=100,
                         help='number of epochs to train (default: 100)')
-    parser.add_argument('--num_workers', type=int, default=4,
-                        help='number of workers (default: 4)')
+    parser.add_argument('--num_workers', type=int, default=0,
+                        help='number of workers (default: 0)')
     parser.add_argument('--log_dir', type=str, default="",
                         help='tensorboard log directory. If not specified, '
                              'tensorboard will not be used.')