Various Types of Applications on the Earth Simlator

1. Various Types of Applications onthe Earth Simlator

2. Tsunami Simulationon the Earth Simulator

3. Tsunami Simulation • Supposed to be generated by Earthquake at Nankai Trough in the South-West part of Japan. • Quasi 3D Shallow-Water Equations • Kawahara-Kashiyama Scheme • 3-Step Explicit Time Marching • Linear Triangle Elements

4. Nankai Trough Cabinet Office/ Government of Japan

5. Nankai Trough Nagoya University

6. Sea Depth in Nankai Trough

7. Sea Depth in Nankai Trough

8. Tsunami Simulation8.80105nodes, 1.76106elem's Mesh Size = 1.25 km

9. Demonstration onthe Earth Simulator • 64 PEs on Earth Simulator • 512 GFLOPS peak • 1,200 km  1,200 km Region • 923,521 nodes, 1,843,200 elements • 42,255 steps • Parallel Programming Models • Flat MPI • OpenMP/MPI Hybrid

10. Demonstration onthe Earth Simulator64 PEs, 8 SMP Nodes, 42,255 steps ●Flat MPI ●Hybrid Parallel Speed-Up

11. Demonstration onthe Earth Simulator64 PEs, 8 SMP Nodes, 42,255 steps ●Flat MPI 222 GFLOPS (43% of the Peak) GFLOPS

12. Groundwater FlowThroughHeterogeneousPorous Media

13. Background • Deep Geological Disposal of HLW • High-Level Radioactive Waste • Natural/Engineered Barriers • Long-term simulation (106~108 y) for nuclide transportation • Random Heterogeneous Field • Sedimentary Rock : Porous Media • Granite : Fracture

14. V.Test Hole V.Test Hole Sedimentary Rock ANDRA Tunnels Granite Fault Deep Geological Disposalof HLWDisposal Site JNC, Japan.

15. Demonstration on the Earth Simulator • Coupled Flow Equations • Saturated Darcy Flow & Energy Equations • Primitive Variable Approach • ICCG/Multigrid for Poisson’s Eqn. • Up to 2M Meshes on ES (1PE) • 2.4 GFLOPS (30% of the Peak)

16. Problem Setting Uniform Temperature/Pressure at Z=0 surface Uniform Initial Flow Heat Generation

17. Results on EST=0.50, Temperature Uini=0.00 Uini=0.02

18. Results on EST=1.00, Temperature Uini=0.00 Uini=0.02

19. Results on EST=1.50, Temperature Uini=0.00 Uini=0.02

20. Results on EST=2.00, Temperature Uini=0.00 Uini=0.02

21. Results on EST=2.50, Temperature Uini=0.00 Uini=0.02

22. Results on EST=3.00, Temperature Uini=0.00 Uini=0.02

23. Results on EST=3.50, Temperature Uini=0.00 Uini=0.02

24. Results on EST=4.00, Temperature Uini=0.00 Uini=0.02

25. Results on EST=4.50, Temperature Uini=0.00 Uini=0.02

26. Results on EST=5.00, Temperature Uini=0.00 Uini=0.02

27. Results on EST=5.50, Temperature Uini=0.00 Uini=0.02

28. Results on EST=6.00, Temperature Uini=0.00 Uini=0.02

29. Results on EST=6.50, Temperature Uini=0.00 Uini=0.02

30. Results on EST=7.00, Temperature Uini=0.00 Uini=0.02

31. Results on EST=7.50, Temperature Uini=0.00 Uini=0.02

32. Results on EST=8.00, Temperature Uini=0.00 Uini=0.02

33. Results on EST=8.50, Temperature Uini=0.00 Uini=0.02

34. Results on EST=9.00, Temperature Uini=0.00 Uini=0.02

35. Results on EST=9.50, Temperature Uini=0.00 Uini=0.02

36. Results on EST=10.0, Temperature Uini=0.00 Uini=0.02

37. Performance on 1 PEElapsed Time for 1,000 Steps ●ICCG ●MG

38. Performance on 1 PEGFLOPS (Over All) ●ICCG ●MG

39. Thermal Stress Analysis of Nuclear Experimental Facility ( Tube Sheet )

40. Demonstration on the Earth Simulator • FEA-Visualization Concurrent Coupling • 200M DOF on ES (64 SMP nodes) • 2.8 GFLOPS / PE (35% of the Peak)

41. Thermal Stress Analysis of Tube Sheet • 全体を均等加熱 • PVRによるミーゼス応力表示