High Performance Computing on Vector Systems 2007

High Performance Computing on Vector Systems 2007

von: Sabine Roller, Peter Lammers, Toshiyuki Furui, Martin Galle, Wolfgang Bez

Springer-Verlag, 2007

ISBN: 9783540743842 , 267 Seiten

Format: PDF

Kopierschutz: Wasserzeichen

Windows PC,Mac OSX Apple iPad, Android Tablet PC's

Preis: 130,89 EUR

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High Performance Computing on Vector Systems 2007


 

Preface

6

Contents

9

List of Contributors

12

Applications I Geophysics and Climate Simulations

13

Sustained Performance of 10+ Teraflop/s in Simulation on Seismic Waves Using 507 Nodes of the Earth Simulator

14

1 Introduction

14

2 Numerical Technique

15

3 Examples of 2004 Great Sumatra Earthquake

17

4 Application to estimate the Earth’s internal structure

20

5 Discussion

23

Acknowledgments

23

References

24

Cloud-Resolving Simulation of Tropical Cyclones

26

1 Numerical simulation of tropical cyclones

26

2 Cloud-resolving models for simulations of tropical cyclones

28

3 An experiment on effects of ice phase processes on an idealized tropical cyclone

28

4 Future Perspective of Numerical Simulation of Tropical Cyclones

34

References

34

OPA9 – French Experiments on the Earth Simulator and Teraflop Workbench Tunings

36

1 Introduction

36

2 Vertical pumping associated with eddies

37

3 Oceanic CO

39

pumping and eddies

39

4 Dynamics of deep equatorial transport and mixing

40

5 First meters of the ocean and tropical climate variability

41

6 Application tunings for vector computers under the Teraflop Workbench

41

7 Conclusion

44

TERAFLOP Computing and Ensemble Climate Model Simulations

46

1 Introduction

46

2 The Dutch Computing Challenge Project

47

3 The ESSENCE Project

49

4 Summary and Conclusion

52

Acknowledgments

52

References

53

Applications II Computational Fluid Dynamics

54

Current Capability of Unstructured-Grid CFD and a Consideration for the Next Step

55

1 Introduction

55

2 Will CFD take over wind tunnels?

55

3 Rapid progress of computers

56

4 Demands for next-generation CFD

58

5 Building-Cube Method

59

6 Conclusion

62

References

62

Smart Suction – an Advanced Concept for Laminar Flow Control of Three- Dimensional Boundary Layers

63

1 Introduction

63

2 Laminar base flow

65

3 Smart Suction

67

4 Conclusions and Outlook

69

References

70

Supercomputing of Flows with Complex Physics and the Future Progress

71

1 Introduction

71

2 The Project: Numerical Turbine(NT)

71

3 The Project: Supercritical-Fluids Simulator(SFS)

76

4 Other Projects

77

5 Concluding Remarks

78

References

79

Large-Scale Computations of Flow Around a Circular Cylinder

80

1 Introduction

80

2 Performance of the code on the NEC SX-8

84

3 Instantaneous flow fields

86

4 Discussion and Conclusions

87

Acknowledgements

89

References

89

Performance Assessment and Parallelisation Issues of the CFD Code NSMB

91

1 Introduction and Background

91

2 Simulation Code NSMB

92

3 Description of the Tested Systems

93

4 Test Case and Benchmarking Procedure

94

5 Benchmarking Results

96

6 Conclusions

116

Acknowledgements

120

References

120

Applications III Multiphysics Computational Fluid Dynamics

121

High Performance Computing Towards Silent Flows

122

1 Introduction

122

2 Numerical Methods

124

3 Computational Setup

125

4 Results and Discussion

129

5 Conclusion

140

Acknowledgments

140

References

141

Fluid-Structure Interaction: Simulation of a Tidal Current Turbine

143

1 Basic equations

143

2 Dynamic mesh approach

144

3 Coupling fluid and structure

145

4 Results

147

Acknowledgements

148

5 Further investigations and outlook

148

References

149

Coupled Problems in Computational Modeling of the Respiratory System

150

1 Introduction

150

2 Modeling of Pulmonary Alveoli

151

3 Fluid-Structure Interaction of Lower Airways

162

4 Summary and Outlook

168

References

169

FSI Simulations on Vector Systems – Development of a Linear Iterative Solver ( BLIS)

172

1 Introduction

172

2 Fluid structure interaction

173

3 Linear iterative solver

174

4 Numerical example

176

5 Performance

178

6 Summary

181

References

181

Applications IV Chemistry and Astrophysics

183

Simulations of Premixed Swirling Flames Using a Hybrid Finite- Volume/ Transported PDF Approach

184

1 Introduction

184

2 Numerical Model

186

CFD PDF

186

3 Results and Discussion

190

4 Conclusion

194

References

194

Supernova Simulations with the Radiation Hydrodynamics Code PROMETHEUS/ VERTEX

197

1 Introduction

197

2 Numerical models

198

3 The mathematical model

202

4 Optimization of the block-pentadiagonal solver

207

5 Parallelization

209

6 Conclusions

210

Acknowledgements

210

References

210

Applications V Material Science

213

Green Chemistry from Supercomputers: Car– Parrinello Simulations of Emim- Chloroaluminates Ionic Liquids

214

1 Introduction

214

2 Method

216

3 Results: Ionic structure

219

4 Results: Electronic structure

221

5 Computational performance

224

6 Conclusions

226

Acknowledgements

226

References

227

Micromagnetic Simulations of Magnetic Recording Media

229

1 Fundamentals of micromagnetics

229

2 A micromagnetic model

238

3 Applications of micromagnetics

242

4 Conclusions

244

References

244

Future High Performance Systems

245

The Potential of On-Chip Memory Systems for Future Vector Architectures

246

1 Introduction

246

2 Vector Architecture: Its Light and Shadow

247

3 On-Chip Memory Systems for Vector Architectures

250

4 Performance Evaluation

252

5 Summary

261

Acknowledgments

262

References

262

The Road to TSUBAME and Beyond

264

References

266