Optimisation of Lattice Simulations Energy Efficiency
DescriptionA total of 196 out of the 500 supercomputers in the world have submitted power measurements, so we know that they consume together around 3 billion kWh per year. The energy in a supercomputer is mainly consumed by its computing elements (e.g. CPUs & GPUs), and power consumption is directly related to the intensity of the calculations running on the machine. Processors perform operations synchronised with an internal clock, and the energy consumption is directly related to this clock frequency. A current general trend in high-performance computing hardware is to manufacture processors so that they constantly try to operate at maximum possible frequencies, in order to achieve work faster. This is a design that is potentially wasting energy, so it is important to question whether a compromise should be found between performance and energy efficiency for current and future infrastructures.
TimeWednesday, June 2812:00 - 12:30 CEST