Energy Efficient Seismic Wave Propagation Simulation on a Low-power Manycore Processor.

Abstract : Large-scale simulation of seismic wave propagation is an active research topic. Its high demand for processing power makes it a good match for High Performance Computing (HPC). Although we have observed a steady increase on the processing capabilities of HPC platforms, their energy efficiency is still lacking behind. In this paper, we analyze the use of a low-power manycore processor, the MPPA-256, for seismic wave propagation simulations. First we look at its peculiar characteristics such as limited amount of on-chip memory and describe the intricate solution we brought forth to deal with this processor's idiosyncrasies. Next, we compare the performance and energy efficiency of seismic wave propagation on MPPA-256 to other commonplace platforms such as general-purpose processors and a GPU. Finally, we wrap up with the conclusion that, even if MPPA-256 presents an increased software development complexity, it can indeed be used as an energy efficient alternative to current HPC platforms, resulting in up to 71% and 5.18x less energy than a GPU and a general-purpose processor, respectively.
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Marcio Castro, Fabrice Dupros, Emilio Francesquini, Jean-François Mehaut, Philippe Olivier Alexandre Navaux. Energy Efficient Seismic Wave Propagation Simulation on a Low-power Manycore Processor.. 26th International Symposium on Computer Architecture and High Performance Computing, Oct 2014, Paris, France. 8 p. ⟨hal-01060286⟩

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