Over at Scientific Computing, Natalie Bates from the Energy Efficient High Performance Computing Working Group writes that the biggest impediments in creating energy-efficient HPC are the scaling limitations of silicon-based technologies. Bates writes, “Creating more energy-efficient HPC is a continuous improvement process that requires the right tools for measuring, taking action, checking the results and iterating in a virtuous cycle. This is true for the infrastructure as well as all levels of the system; from components through applications.” To read further http://www.scientificcomputing.com/articles/2014/05/meeting-power-challenge-natalie-bates-creating-more-energy-efficient-hpc .