Node level power measurements on a petaflop system

The complexity and size of scientific and engineering challenges are continually increasing to the point where they are approaching exascale computing. One of the main challenges is to be able to run scientific software applications on these extremely large systems in an energy efficient manner, as power consumption will become one of the dominant cost factors that will govern the next generation of large high performance computing data centers. In this paper, we present the results of node level power measurements on a petaflop HPC system.