10 Result(s)
within
Kazuhiko Komatsu
English
Computational Science and Engineering
Simulation and Modeling
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Chapter and Conference Paper
Analysing the Performance Improvements of Optimizations on Modern HPC Systems
Recently, there are many types of supercomputing systems being equipped with vector processors, scalar processors, and accelerators as processing elements of the systems. Although all kinds of calculations can...
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Chapter and Conference Paper
Performance Evaluation of a Next-Generation CFD on Various Supercomputing Systems
The Building-Cube Method (BCM) has been proposed as a new CFD method for an efficient three-dimensional flow simulation on large-scale supercomputing systems, and is based on equally-spaced Cartesian meshes. A...
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Chapter and Conference Paper
Performance Evaluation of an OpenMP Parallelization by Using Automatic Parallelization Information
To exploit the potential of many core processors, a serial code is generally optimized for a particular compiler called a target compiler, so that the compiler can understand the code structure for automatic p...
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Chapter and Conference Paper
Code Optimization Activities Toward a High Sustained Simulation Performance
Rapid evolutions of HPC systems bring us a high computational capability. However, it is getting harder to exploit the potential of a HPC system due to the increases in system complexity. To create significant...
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Chapter and Conference Paper
Designing an HPC Refactoring Catalog Toward the Exa-scale Computing Era
Aiming at kee** performance portability of practical applications even in the exascale computing era, this paper presents a concept of HPC refactoring, and the design of the HPC refactoring catalog. The HPC ...
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Chapter and Conference Paper
Performance Evaluation of Compiler-Assisted OpenMP Codes on Various HPC Systems
As automatic parallelization functions are different among compilers, a serial code is often modified so that a particular target compiler can easily understand its code structure and data dependency, resultin...
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Chapter and Conference Paper
Directive Translation for Various HPC Systems Using the Xevolver Framework
This paper proposes a directive translation approach that translates a special placeholder to different directives, depending on the target HPC system. The special placeholder in an application code is used as...
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Chapter and Conference Paper
Performance Evaluation of SX-Aurora TSUBASA by Using Benchmark Programs
This paper evaluates the basic performance of the latest vector supercomputer, SX-Aurora TSUBASA, in order to clarify its potential. First, the memory bandwidth, which is one of the features of SX-Aurora TSUBA...
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Chapter and Conference Paper
Optimizations of DNS Codes for Turbulence on SX-Aurora TSUBASA
Direct numerical simulations (DNSs) of incompressible turbulence have been performed since the late 1960s, but simulations that reproduce strongly nonlinear turbulent flows as in the real-world have not been r...
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Chapter and Conference Paper
Performance Evaluation of SX-Aurora TSUBASA and Its QA-Assisted Application Design
In this article, we present an overview of our on-going project entitled, R&D of a Quantum-Annealing Assisted Next Generation HPC Infrastructure and its Applications. We describes our system design concept of a n...
