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SCHEDULE: NOV 16-21, 2014

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Petascale High Order Dynamic Rupture Earthquake Simulations on Heterogeneous Supercomputers

SESSION: ACM Gordon Bell Finalist I

EVENT TYPE: Award Presentations & Award Talks, ACM Gordon Bell Finalists

TIME: 1:30PM - 2:00PM


AUTHOR(S):Alexander Heinecke, Alexander Breuer, Sebastian Rettenberger, Michael Bader, Alice-Agnes Gabriel, Christian Pelties, Arndt Bode, William Barth, Xiang-Ke Liao, Karthikeyan Vaidyanathan, Mikhail Smelyanskiy, Pradeep Dubey

ROOM:New Orleans Theater


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
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.

Chair/Author Details:

Taisuke Boku (Chair) - University of Tsukuba

Alexander Heinecke - Technical University of Munich and Intel Corporation

Alexander Breuer - Technical University Munich

Sebastian Rettenberger - Technical University Munich

Michael Bader - Technical University Munich

Alice-Agnes Gabriel - Ludwig Maximilian University of Munich

Christian Pelties - Ludwig Maximilian University of Munich

Arndt Bode - Leibniz Supercomputing Center and Technical University of Munich

William Barth - Texas Advanced Computing Center

Xiang-Ke Liao - National University of Defense Technology, China

Karthikeyan Vaidyanathan - Intel Corporation

Mikhail Smelyanskiy - Intel Corporation

Pradeep Dubey - Intel Corporation

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Paper provided by the ACM Digital Library

Paper also available from IEEE Computer Society