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UCERF3

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UCERF3

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  1. Fig. 1. A wiring diagram for the SCEC computational pathways of earthquake system science (left) and large-scale calculations exemplifying each of the pathways (below). (1) Uniform California earthquake rupture forecast, UCERF3, run on TACC Stampede. (2)  CyberShake ground motion prediction model 14.2, run on NCSA Blue Waters. (3) Dynamic rupture model including fractal fault roughness, run on XSEDE Kraken. (4) 3D velocity model for Southern California crust, CVM-S4.26, run on ALCF Mira. Model components include dynamic and kinematic fault rupture (DFR and KFR), anelastic wave propagation (AWP), nonlinear site response (NSR), and full-3D tomography (F3DT). depth = 6 km UCERF3 SA-3s, 2% PoE in 50 years Los Angeles 1 Uniform California Earthquake Rupture Forecast (UCERF3) CyberShake 14.2 seismic hazard model for LA region Dynamic rupture model of fractal roughness on SAF 4 Full-3D tomographic model CVM-S4.26 of S. California 2 3

  2. Figure 1: Left, Wall clock time of Hercules on Kraken, Blue Waters and Mira;

  3. Figure 3: Left, Performance measurements of SCEC OpenSHA software on Stampede showing time to solve simulated annealing inversion (a) increasing number of threads, and (b) running 4 threads per node and increasing the number of nodes. Right, shows speed up for OpenSHA simulated anneal increasing threads per inversion.

  4. Figure 6.Strong scaling of Hercules (wall clock time) on Kraken, Blue Waters and Mira. AWP-ODC is measured with 2.3 PFLOPS on XK7, and 653 TFLOPS on XE6. Benchmarks are based on variety of problem sizes.

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