def get_pipeline_model_parallel_last_rank():
    """Return the global rank of the last process in the pipeline for the
    current tensor parallel group"""
    assert _PIPELINE_GLOBAL_RANKS is not None, "Pipeline parallel group is not initialized"
    last_rank_local = get_pipeline_model_parallel_world_size() - 1
    return _PIPELINE_GLOBAL_RANKS[last_rank_local]
Return the global rank of the last process in the pipeline for the
    current tensor parallel group
training/DeepSpeed-Domino/megatron/core/parallel_state.py