Seismic Wave Propagation Simulations on Low-power and Performance-centric Manycores

Abstract : The large processing requirements of seismic wave propagation simulations make High Performance Computing (HPC) architectures a natural choice for their execution. However, to keep both the current pace of performance improvements and the power consumption under a strict power budget, HPC systems must be more energy e than ever. As a response to this need, energy-e and low-power processors began to make their way into the market. In this paper we employ a novel low-power processor, the MPPA-256 manycore, to perform seismic wave propagation simulations. It has 256 cores connected by a NoC, no cache-coherence and only a limited amount of on-chip memory. We describe how its particular architectural characteristics influenced our solution for an energy-e implementation. As a counterpoint to the low-power MPPA-256 architecture, we employ Xeon Phi, a performance-centric manycore. Although both processors share some architectural similarities, the challenges to implement an e seismic wave propagation kernel on these platforms are very di↵erent. In this work we compare the performance and energy e of our implementations for these processors to proven and optimized solutions for other hardware platforms such as general-purpose processors and a GPU. Our experimental results show that MPPA-256 has the best energy e consuming at least 77 % less energy than the other evaluated platforms, whereas the performance of our solution for the Xeon Phi is on par with a state-of-the-art solution for GPUs.
Complete list of metadatas

Cited literature [4 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01273153
Contributor : Jean-Francois Méhaut <>
Submitted on : Friday, February 12, 2016 - 8:38:37 AM
Last modification on : Thursday, October 11, 2018 - 8:48:05 AM
Long-term archiving on : Saturday, November 12, 2016 - 7:00:12 PM

File

Parco-revised.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

Márcio Castro, Emilio Francesquini, Fabrice Dupros, Hideo Aochi, Philippe Navaux, et al.. Seismic Wave Propagation Simulations on Low-power and Performance-centric Manycores. Parallel Computing, Elsevier, 2016, ⟨10.1016/j.parco.2016.01.011⟩. ⟨hal-01273153⟩

Share

Metrics

Record views

425

Files downloads

361