Petascale high order dynamic rupture earthquake simulations on heterogeneous supercomputers

We present an end-to-end optimization of the innovative Arbitrary high-order DERivative Discontinuous Galerkin (ADER-DG) software SeisSol targeting Intel® Xeon Phi™ coprocessor platforms, achieving unprecedented earthquake model complexity through coupled simulation of full frictional sliding and se...

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Vydáno v:Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis s. 3 - 14
Hlavní autoři: Heinecke, Alexander, Breuer, Alexander, Rettenberger, Sebastian, Bader, Michael, Gabriel, Alice-Agnes, Pelties, Christian, Bode, Arndt, Barth, William, Liao, Xiang-Ke, Vaidyanathan, Karthikeyan, Smelyanskiy, Mikhail, Dubey, Pradeep
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: Piscataway, NJ, USA IEEE Press 01.11.2014
IEEE
Edice:ACM Conferences
Témata:
ADER-DG
Applied computing > Physical sciences and engineering > Earth and atmospheric sciences
Computational modeling
Computer systems organization > Architectures > Distributed architectures > Grid computing
Computer systems organization > Architectures > Parallel architectures > Multicore architectures
Computer systems organization > Architectures > Serial architectures > Superscalar architectures
Computer systems organization > Dependable and fault-tolerant systems and networks
Computing methodologies > Modeling and simulation > Simulation types and techniques > Massively parallel and high-performance simulations
dynamic rupture
earthquake simulation
Earthquakes
General and reference > Cross-computing tools and techniques > Performance
heterogeneous supercomputers
hybrid parallelization
Jacobian matrices
Kernel
Networks > Network performance evaluation
Optimization
petascale performance
Seismic waves
SeisSol
Software and its engineering > Software organization and properties > Software system structures > Distributed systems organizing principles > Grid computing
Stress
ADER-DG
dynamic rupture
heterogeneous supercomputers
earthquake simulation
hybrid parallelization
petascale performance
SeisSol
ISBN:1479955000, 9781479955008
ISSN:2167-4329
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Popis
Shrnutí:We present an end-to-end optimization of the innovative Arbitrary high-order DERivative Discontinuous Galerkin (ADER-DG) software SeisSol targeting Intel® Xeon Phi™ coprocessor platforms, achieving unprecedented earthquake model complexity through coupled simulation of full frictional sliding and seismic wave propagation. SeisSol exploits unstructured meshes to flexibly adapt for complicated geometries in realistic geological models. Seismic wave propagation is solved simultaneously with earthquake faulting in a multiphysical manner leading to a heterogeneous solver structure. Our architecture-aware optimizations deliver up to 50% of peak performance, and introduce an efficient compute--communication overlapping scheme shadowing the multiphysics computations. SeisSol delivers near-optimal weak scaling, reaching 8.6 DP-PFLOPS on 8,192 nodes of the Tianhe-2 supercomputer. Our performance model projects reaching 18--20 DP-PFLOPS on the full Tianhe-2 machine. Of special relevance to modern civil engineering needs, our pioneering simulation of the 1992 Landers earthquake shows highly detailed rupture evolution and ground motion at frequencies up to 10 Hz.
ISBN:1479955000
9781479955008
ISSN:2167-4329
DOI:10.1109/SC.2014.6