Correct comments in parallel_state.py (#1818)

vllm/model_executor/parallel_utils/parallel_state.py

@@ -2,7 +2,7 @@
 # Adapted from
 # https://github.com/NVIDIA/Megatron-LM/blob/main/megatron/core/parallel_state.py
 # Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
-"""Model and data parallel groups."""
+"""Tensor and pipeline parallel groups."""
 
 import torch
 
@@ -84,7 +84,7 @@ def initialize_model_parallel(
 
 
 def model_parallel_is_initialized():
-    """Check if model and data parallel groups are initialized."""
+    """Check if tensor and pipeline parallel groups are initialized."""
     return (_TENSOR_MODEL_PARALLEL_GROUP is not None
             and _PIPELINE_MODEL_PARALLEL_GROUP is not None)