Sustained Petascale Performance of Seismic Simulations with SeisSol on SuperMUC
Sustained Petascale Performance of Seismic Simulations with SeisSol on SuperMUC
复制标题
在 SuperMUC 上使用 SeisSol 进行地震模拟的持续千万亿次性能
DOI:
10.1007/978-3-319-07518-1_1
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发表时间:
--
期刊:
影响因子:
--
通讯作者:
A.-A. Gabriel and C. Pelties
中科院分区:
文献类型:
--
作者:
A. Breuer;A. Heinecke;S. Rettenberger;M. Bader;A.-A. Gabriel and C. Pelties
Seismic simulations in realistic 3D Earth models require peta- or even exascale computing power to capture small-scale features of high relevance for scientific and industrial applications. In this paper, we present optimizations of SeisSol – a seismic wave propagation solver based on the Arbitrary high-order accurate DERivative Discontinuous Galerkin (ADER-DG) method on fully adaptive, unstructured tetrahedral meshes – to run simulations under production conditions at petascale performance. Improvements cover the entire simulation chain: from an enhanced ADER time integration via highly scalable routines for mesh input up to hardware-aware optimization of the innermost sparse-/dense-matrix kernels. Strong and weak scaling studies on the SuperMUC machine demonstrated up to 90% parallel efficiency and 45% floating point peak efficiency on 147k cores. For a simulation under production conditions (108grid cells, 5·1010degrees of freedom, 5 seconds simulated time), we achieved a sustained performance of 1.09 PFLOPS.
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影响因子:
12.3
作者:
Olaf Krzikalla;Kim Feldhoff;R. Müller;W. Nagel
通讯作者:
W. Nagel
影响因子:
3
作者:
M. Käser;P. Mai;M. Dumbser
通讯作者:
M. Dumbser
影响因子:
2
作者:
C. Pelties;Yihe Huang;J. Ampuero
通讯作者:
J. Ampuero
DOI:
10.1145/2370816.2370850
发表时间:
2012
期刊:
2012 21st International Conference on Parallel Architectures and Compilation Techniques (PACT)
影响因子:
--
作者:
W. Kramer
通讯作者:
W. Kramer
影响因子:
2.8
作者:
Carsten Burstedde;G. Stadler;L. Alisic;L. Wilcox;E. Tan;M. Gurnis;O. Ghattas
通讯作者:
O. Ghattas