cpufreq directory not present. How to change governor for P states in such a case

One node in my cluster is using ondemand governor which is specified in the directory
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ..
Scaling_governor allows us to choose the governor of our choice .
But this sub-directory is absent in the other node of the cluster . How do I change the governor for Pstates in such case ?