a set of CPUs that belong NUMA locality domain with the appropriate
    --cpu-bind option (ldoms, rank_ldom, map_ldom, and mask_ldom), see
    "man srun" for more information.

    node when the --exclusive option is specified as a job submit option.

    than a char * to satisfy PMI standard. Correct logic in 
    PMI_Get_clique_size() for when srun --overcommit option is used.

rather than in sbatch. slurmd needs the value for computing node layout.