Sustained Simulation Performance 2015 : Proceedings of the Joint Workshop on Sustained Simulation Performance, University of Stuttgart (HLRS) and Tohoku University, 2015

The book presents the state of the art in high-performance computing and simulation on modern supercomputer architectures. It covers trends in hardware and software development in general, and the future of high-performance systems and heterogeneous architectures specifically. The application contributions cover computational fluid dynamics, material science, medical applications and climate research. Innovative fields like coupled multi-physics or multi-scale simulations are also discussed. All papers were chosen from presentations given at the 20th Workshop on Sustained Simulation Performance in December 2014 at the HLRS, University of Stuttgart, Germany, and the subsequent Workshop on Sustained Simulation Performance at Tohoku University in February 2015. Front Matter....Pages i-xii Front Matter....Pages 1-1 A New SX-ACE-Based Supercomputer System of Tohoku University....Pages 3-15 Managing Large Computer Systems with Change Objects....Pages 17-27 High Performance Computing in the Cloud: A Survey on Performance and Usability....Pages 29-40 Towards an Environment to Deliver High Performance Computing to Small and Medium Enterprises....Pages 41-50 Storage Systems for I/O-Intensive Applications in Computational Chemistry....Pages 51-60 A Data Management Policy for Energy-Efficient Cache Mechanisms....Pages 61-75 Toward Flexible Supercomputing and Visualization System....Pages 77-93 NEC Vector Supercomputer: Its Present and Future....Pages 95-105 Front Matter....Pages 107-107 The Spectral Structure of a Nonlinear Operator and Its Approximation....Pages 109-123 Arbitrary Geometries for High Order Discontinuous Galerkin Methods....Pages 125-135 A High-Level Interface of Xevolver for Composing Loop Transformations....Pages 137-145 Performance Evaluation of Compiler-Assisted OpenMP Codes on Various HPC Systems....Pages 147-157 Code Optimization Activities Toward a High Sustained Simulation Performance....Pages 159-168 Front Matter....Pages 169-169 The Multicore Challenge: Petascale DNS of a Spatially-Developing Supersonic Turbulent Boundary Layer Up to High Reynolds Numbers Using DGSEM....Pages 171-183 High-Resolution Latitude Belt Simulation with the Weather Research and Forecasting Model....Pages 185-194 Aeroacoustic Simulation of Flow Through Porous Media Based on Lattice Boltzmann Method....Pages 195-204 Semi-Automatic Segmentation and Analysis of Vascular Structures in CT Data....Pages 205-218