def is_global_rank_zero()

in src/hyperpod_nemo_adapter/utils/get_rank.py [0:0]

• 10 lines of code
• 8 McCabe index (conditional complexity)

def is_global_rank_zero():
    """Helper function to determine if the current process is global_rank 0 (the main process),
    TODO: Add support for getting EKS rank
    """
    # Try to get the pytorch RANK env var
    # RANK is set by torch.distributed.launch
    rank = get_envint("RANK", None)
    if rank is not None:
        return rank == 0

    # Try to get the SLURM global rank env var
    # SLURM_PROCID is set by SLURM
    slurm_rank = get_envint("SLURM_PROCID", None)
    if slurm_rank is not None:
        return slurm_rank == 0

    # if neither pytorch and SLURM env vars are set
    # check NODE_RANK/GROUP_RANK and LOCAL_RANK env vars
    # asume global_rank is zero if undefined
    node_rank = get_envint("NODE_RANK", get_envint("GROUP_RANK", 0))
    local_rank = get_envint("LOCAL_RANK", 0)
    return node_rank == 0 and local_rank == 0