NAKAJIMA, Kengo

J-GLOBAL         Last updated: Nov 25, 2018 at 17:33
 
Avatar
Name
NAKAJIMA, Kengo
Affiliation
The University of Tokyo
Section
Information Technology Center, Super Computing Division
Job title
Project Professor
Degree
Doctor of Philosophy(The University of Tokyo)
Other affiliation
Japan Agency for Marine-Earth Science and Technology

Research Areas

 
 

Academic & Professional Experience

 
 
   
 
The University of Texas at Austin
 
 
   
 
and Technology(RIST)
 
 
   
 
The University of Tokyo
 
 
   
 
The University of Tokyo
 
1985
 - 
1999
Mitsubishi Research Institute, Inc.,
 
1991
 - 
1994
Texas Institute for Computational Mechanics(TICOM),
 
1999
 - 
2004
Research Organization for Information Science
 
2004
 - 
2008
Department of Earth and Planetary Science,
 
2008
   
 
- Information Technology Center,
 
2008
   
 
- JAMSTEC
 
Apr 2010
 - 
Mar 2018
AICS, RIKEN
 
Apr 2018
 - 
Today
Deputy Director, R-CCS, RIKEN
 

Education

 
Mar 2003
 - 
Mar 2003
Department of Department of Quantum Engineering and System Science, Graduate School of Engineering, The University of Tokyo
 
 
 - 
1993
Department of Aerospace Engineering and Engineering Mechanics, Graduate School, The University of Texas at Austin
 
 
 - 
1985
Department of Aeronautics, Faculty of Engineering, The University of Tokyo
 

Committee Memberships

 
2002
 - 
2003
Japan Society for Applied Mathematics  Editorial Board for Journal
 
1994
 - 
1997
Japan Society for Computational Engineering and Science  Editorial Board for Journal
 

Awards & Honors

 
Jan 2018
Wave propagation simulation of complex multi-material problems with fast low-order unstructured finite-element meshing and analysis, Best Paper Award, HPC Asia 2018
Winner: [9-7] K. Fujita, K. Katsushima, T. Ichimura, M. Horikoshi, K. Nakajima, M. Hori, L. Maddegedara
 
Nov 2017
Implicit Low-Order Unstructured Finite-Element Multiple Simulation Enhanced by Dense Computation using OpenACC, Best Paper Award, Fourth Workshop on Accelerator Programming Using Directives in conjunction with SC17 (The International Conference for High Performance Computing, Networking, Storage and Analysis)
Winner: T. Yamaguchi, K. Fujita, T. Ichimura, M. Hori, M. Lalith, K. Nakajima
 
Dec 2014
Optimization of Serial and Parallel Communications for Parallel Geometric Multigrid Method, Best Paper Award, 20th IEEE International Conference for Parallel and Distributed Systems (ICPADS 2014)
 
Jun 2003
Parallel Finite Element Analysis Platform for the Earth Simulator: GeoFEM, Selected BEST Papers, ICCS 2003 (International Conference on Computational Science)
Winner: Okuda, H., Nakajima, K., Iizuka, M., Chen, L. and Nakamura, H
 
Jun 2001
Parallel 3D Adaptive Compressible Navier-Stokes Solver in GeoFEM with Dynamic Load-Balancing by DRAMA Library, Best Paper Award, HPCN Europe 2001 (High-Performance Computing and Networking), Amsterdam, The Netherlands
Winner: Nakajima, K., Fingberg, J. Okuda, H.
 

Published Papers

 
Y. Kallinderis, K. Nakajima
AIAA Paper 93-3005, AIAA 24th. Fluid. Dynamics Conference      Jul 1993   [Refereed]
© 1993 American Institute of Aeronautics and Aerodynamics, Inc. All rights reserved. An adaptive finite-element numerical method has been developed for the unsteady Navier-Stokes equations of incompressible flow in two dimensions. The momentum equ...
Y. Kallinderis, K. Nakajima, K. Nakajima
AIAA Journal   32(8) 1617-1625   Jan 1994   [Refereed]
A new adaptive finite element numerical method has been developed for the unsteady Navier-Stokes equations of incompressible flow in two dimensions. The momentum equations combined with a pressure correction equation are solved employing a nonstag...
K. Nakajima, Y. Kallinderis, I. Sibetheros, R. W. Miksad, K. Lambrakos
Transaction of the ASME Journal of Offshore Mechanics and Arctic Engineering   116 202-208   Jan 1994   [Refereed]
A numerical study of the nonlinear and random behavior of flow-induced forces on offshore structures and experimental verification of the results are presented. The numerical study is based on a finite-element method for the unsteady incompressibl...
K. Nakajima, I. Sibetheros, R. W. Miksad, Y. Kallinderis, K. Lambrakos
Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE   1 355-361   Jan 1994   [Refereed]
A study of the nonlinear and random behavior of flow-induced forces on offshore structure is presented. This study seeks to improve the understanding of the basic hydrodynamics of reversing flow around a cylinder. The experiments use a computer co...
K. Nakajima, Y. Kallinderis
AIAA Journal   32(5) 1090-1093   May 1994   [Refereed]
V. Parthasarathy, Y. Kallinderis, K. Nakajima
AIAA-95-0670, 33rd AIAA Aerospace Sciences Meeting and Exhibit      Jan 1995   [Refereed]
© 1995 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. A solution adaptive scheme with directional multigrid for viscous computations on hybrid grids is presented. The flow domain is discretized with prismatic ...
Yu Maruyama, Minoru Igarashi, Naohiko Nakamura, Akihide Hidaka, Kazuichiro Hashimoto, Jun Sugimoto, Kengo Nakajima
Proceedings of the ASME/JSME International Conference on Nuclear Engineering, ICONE   1 997-1008   Dec 1996   [Refereed]
A computer code, WINDFLOW, for a three-dimensional thermo-fluiddynamic analysis of a single phase gaseous flow in a reactor coolant piping has been developed at JAERI. A hybrid grid system composed of triangular and quadrangular cross-sectional ce...
Kengo Nakajima,Hisashi Nakamura,Takahiko Tanahashi
ference and Exhibition, HPCN Europe 1997   1225 342-350   May 1997   [Refereed]
Kengo Nakajima,Hisashi Nakamura,Hiroshi Okuda
Lecture Notes in Computer Science, High-Performance Computing and Networking, International Conference and Exhibition, HPCN Europe 1998   1401 904-906   Apr 1998   [Refereed]
Kengo Nakajima, Hiroshi Okuda
International Journal of Computational Fluid Dynamics   12 315-322   Jan 1999
Incomplete Lower-Upper (0) (ILU(0)) factorization is a very effective preconditioning method of iterative solvers for large-scale linear sparse systems in scientific and engineering computations. However, this method requires global data dependenc...
Mikio Iizuka,Hisashi Nakamura,Kazuteru Garatani,Kengo Nakajima,Hiroshi Okuda,Genki Yagawa
Lecture Notes in Computer Science   1615 292-303   May 1999   [Refereed]
Parallel Iterative Solvers with Localized ILU Preconditioning for Unstructured Grids
Nakajima, K., Okuda, H.
IMACS SERIES IN COMPUTATIONAL AND APPLIED MATHEMATICS Volume 5 : Iterative Methods in Scientific Computation IV   85-98   Aug 1999   [Refereed]
Kengo Nakajima, Jochen Fingberg, Hiroshi Okuda
Lecture Notes in Computer Science, High-Performance Computing and Networking, International Conference and Exhibition, HPCN Europe 2001   2110 183-193   Apr 2001
© Springer-Verlag Berlin Heidelberg 2001. Grid adaptation is a very useful method for applications with unstructured meshes but requires dynamic load-balancing for efficient parallel computation. In this study, a parallel 3D compressible Navier-St...
K. Garatani, K. Nakajima, H. Okuda, G. Yagawa
Advances in Engineering Software   32 511-518   Jul 2001   [Refereed]
GeoFEM, a parallel finite element analysis system, is application software that is being developed for conducting simulations of solid earth. This system is currently run on a massively parallel computer and can perform linear elastic analysis of ...
Kengo Nakajima,Hiroshi Okuda
High Performance Computing, 4th International Symposium, ISHPC 2002, Kansai Science City, Japan, May 15-17, 2002, Proceedings   437-448   2002   [Refereed]
Okuda Hiroshi, Ezure Shin'ichi, Nakajima Kengo
Transactions of the Japan Society for Industrial and Applied Mathematics   12(1) 29-43   Mar 2002   [Refereed]
At present, in order to carry out computer simulations of complex large-scale problems, parallel computers are necessary to store huge amounts of data and to solve such problems in a given practical time. The finite element method (FEM) has been w...
Kengo Nakajima,Hiroshi Okuda
Concurrency and Computation: Practice and Experience   14(6-7) 411-429   May 2002   [Refereed]
Kengo Nakajima
Concurrency and Computation: Practice and Experience   14(6-7) 483-498   May 2002   [Refereed]
Li Chen,Issei Fujishiro,Kengo Nakajima
Proceedings of the Fourth Eurographics Workshop on Parallel Graphics and Visualization, EGPGV 2002, Blaubeuren, Germany, September 9-10, 2002   133-140   Sep 2002   [Refereed]
Li Chen,Issei Fujishiro,Kengo Nakajima
Parallel Computing   29(3) 355-371   2003   [Refereed]
Kengo Nakajima
Lecture Notes in Computer Science, High Performance Computing, 5th International Symposium, ISHPC 2003, Tokyo-Odaiba, Japan, October 20-22, 2003, Proceedings   2858 486-499   2003   [Refereed]
Yu Maruyama, Yu Maruyama, Kiyofumi Moriyama, Hideo Nakamura, Masashi Hirano, Kengo Nakajima
Journal of Nuclear Science and Technology   40 12-21   Jan 2003   [Refereed]
Effectiveness of debris cooling by water that fills a gap between the debris and the lower head wall was estimated through steady calculations in reactor scale. In those calculations, the maximum coolable debris depth was assessed as a function of...
Parallel Iterative Solves for Solid Earth Simulation on the Earth Simulator
NAKAJIMA, Kengo
Proceedings of Sixth IMACS International Symposium on Iterative Methods in Scientific Computing   181-189   Mar 2003   [Refereed]
Kai Wang,Sangbae Kim,Jun Zhang 0001,Kengo Nakajima,Hiroshi Okuda
Future Generation Computer Systems   19(4) 443-456   Apr 2003   [Refereed]
Hiroshi Okuda, Kengo Nakajima, Mikio Iizuka, Li Chen, Hisashi Nakamura
Lecture Notes in Computer Science   2659 773-780   Jun 2003   [Refereed]
GeoFEM has been developed as a finite element solid earth simulator using the Earth Simulator (ES) (35.61 Tflops/peak according to the Linpack benchmark test). It is composed of a platform and some pluggable 'analysis modules' for structural, elec...
Nakajima K.
Proceedings of the 2003 ACM/IEEE Conference on Supercomputing, SC 2003      Nov 2003   [Refereed]
An efficient parallel iterative method with selective blocking preconditioning has been developed for symmetric multiprocessor (SMP) cluster architectures with vector processors such as the Earth Simulator. This method is based on a three-level hy...
Kengo Nakajima,Hiroshi Okuda
Numerical Linear Algebra with Applications   11(8-9) 831-852   2004   [Refereed]
Kengo Nakajima
IEEE Proceedings of 7th International Conference on High Performance Computing and Grid in Asia Pacific Region (HPC Asia 2004)   150-159   Jul 2004   [Refereed]
Efficient parallel preconditioned iterative linear solvers for unstructured grid have been developed for symmetric multiprocessor (SMP) cluster architectures with vector processors such as the Earth Simulator. Three types of preconditioning, metho...
Li Chen, Issei Fujishiro, Issei Fujishiro, Kengo Nakajima
Proceedings of the Seventh IASTED International Conference on Computer Graphics and Imaging   242-247   Dec 2004   [Refereed]
A new parallel volume rendering method for large unstructured data has been developed for the Earth Simulator. Concurrent visualization can be performed with numerical computation modules on the supercomputer. The supervoxel partition and voxel re...
Li Chen, Issei Fujishiro, Issei Fujishiro, Kengo Nakajima
Pure and Applied Geophysics   161 2245-2263   Dec 2004   [Refereed]
A scalable and high-performance parallel visualization subsystem has been developed in GeoFEM for the Earth Simulator. As part of the Earth Simulator project in Japan, the proposed subsystem is effective for the visualization of large-scale geosci...
HASEGAWA HIDEHIKO, SUDA REIJI, NUKADA AKIRA, KAJIYAMA TAMITO, NAKAJIMA KENGO, TAKAHASHI DAISUKE, KOTAKEMORI HISASHI, FUJII AKIHIRO, NISHIDA AKIRA
IPSJ SIG Notes   2004(128) 37-42   Dec 2004
We propose a new library interface SILC (Simple Interface for Library Collections) which (1) separates passing data and requesting computation at calling library program, (2) uses mathematical expression in text data for a computation request, and...
Kengo Nakajima
Parallel Computing   31(10-12) 1048-1065   2005   [Refereed]
Sparse Approximate Inverse Preconditioner for Contact Problems on the Earth Simulator using OpenMP
NAKAJIMA, Kengo
Proceedings of International Workshop on OpenMP: Experiences and Implementations (WOMPEI 2005)   34-40   Jan 2005   [Refereed]
Performance of large-scale finite-element applications in earth science on BlueGene/L prototype system using parallel iterative solvers of GeoFEM
NAKAJIMA, Kengo
IPSJ Proceedings of HPCS2005   17-24   Jan 2005   [Refereed]
Kengo Nakajima
Applied Numerical Mathematics   54 237-255   Jul 2005   [Refereed]
An efficient parallel iterative method for finite element method has been developed for symmetric multiprocessor (SMP) cluster architectures with vector processors such as the Earth Simulator. The method is based on a three-level hybrid parallel p...
NAKAJIMA, Kengo
IEEE Proceedings of 8th International Conference on High Performance Computing and Grid in Asia Pacific Region (HPC Asia 2005)   83-90   Dec 2005   [Refereed]
NAKAJIMA KENGO
IPSJ SIG Notes   2006(20) 61-66   Feb 2006
Hitachi SR11000/J1 and IBM p5-595 are SMP cluster architectures based on IBM POWERS processor (1.9GHz). In this study, performance of each architecture on a single node performance with eight processor cores has been evaluated through various type...
NAKAJIMA KENGO, CHEN LI
IPSJ SIG Notes   2006(87) 91-96   Jul 2006
In large-scale scientific simulations using massively parallel computers, visualization of results is a critical technical issue. Various types of methods have been developed in this area, but it is very difficult to keep both of parallel efficien...
Advanced scientific computational methods and their applications to nuclear technologies - (9) High performance computing(2)
Nakajima Kengo
Journal of the Atomic Energy Society of Japan   48(12) 961-966   Dec 2006   [Refereed]
NAKAJIMA K., NAGASHIMA T., EZURE S., ICHIMURA T., OKUDA H.
IPSJ SIG Notes   2007(17) 215-220   Mar 2007
A prototype of framework for large-scale parallel coupling simulations through M×N parallel data redistribution under SPMD environment has been developed for "Integrated Predictive Simulation System for Earthquake and Tsunami Disaster" Capabilitie...
Kengo Nakajima
Lecture Notes in Computer Science, International Conference on Computational Science (ICCS 2007)   4489 1085-1092   May 2007   [Refereed]
The impact of parallel programming models on the performance of iterative linear solvers for finite element applications
Nakajima Kengo
Lecture Notes in Computer Science   4395 334-348   May 2007   [Refereed][Invited]
NAKAJIMA KENGO
IPSJ SIG Notes   2007(59) 25-30   Jun 2007
In this work, "PHIDAL (Parallel Hierarchical lnterface Decomposition Algorithm)" and a hybrid parallel programming model have been implemented to a finite-element application fbr linear-elastic silnulations with heterogeneous material property usi...
Kengo Nakajima
Lecture Notes in Computer Science, IEEE Third International Conference on High-Performance Computation Conference (HPCC-07)   4782 384-395   Sep 2007   [Refereed]
NAKAJIMA KENGO
IPSJ SIG Notes   2008(19) 205-210   Mar 2008
Hitachi SR11000/J2 is an SMP cluster architecture based on IBM POWER5+ processors (2.3GHz). In this study, performance of Hitachi SRI 1000/J2 with up to 1,024 cores has been evaluated through various types of benchmarks based on GeoFEM, which is a...
NAKAJIMA KENGO
IPSJ SIG Notes   2008(74) 163-168   Jul 2008
A framework for parallel adaptive mesh refinement has been developed. Target application is FEM-based simulation code in geophysics for calculating sets of unit slip-response functions at heterogeneous fault boundaries with complicated geometries....
Kengo Nakajima
Proceedings of the 2008 IEEE International Conference on Cluster Computing   298-303   Sep 2008   [Refereed]
Kengo Nakajima
Parallel Computing: From Multicores and GPU's to Petascale, Proceedings of the conference ParCo 2009, 1-4 September 2009, Lyon, France   99-106   2009   [Refereed]
Kengo Nakajima
Advances in Geocomputing, Lecture Notes in Earth Sciences   119 65-118   Feb 2009   [Refereed][Invited]
Solving large-scale systems of linear equations [A]{x} = {b} is one of the most expensive and critical processes in scientific computing. In particular, for simulation codes based on the finite-element method (FEM), most of the computational time ...
NAKAJIMA KENGO
IPSJ SIG Notes   2009(14) 103-108   Feb 2009
In this study, "HID (Parallel Hierarchical Interface Decomposition)" and a hybrid parallel programming model have been implemented to a finite-element application for linear-elastic simulations with heterogeneous material property using parallel p...
KATAGIRI TAKAHIRO, SAITO TATSUHIKO, FURUMURA TAKASHI, NAKAJIMA KENGO
研究報告ハイパフォーマンスコンピューティング(HPC)   2009(1) 1-6   Jun 2009
3次元津波伝搬シミュレーションコードにおいて,海底の深さに起因するループの連続化を利用し,カーネルを最適化する方式を提案する.T2Kオープンスパコン(東大版)を利用した性能評価の結果,論理マスクを用いる従来方式に対し,ベンチマークコードで48%の高速化,MPI化された実コードで5.8%,および9.2%の速度向上を得た.In this presentation, we propose an optimization method to sequentialize the loop relat...
NAKAJIMA Kengo, KATAGIRI Takahiro
研究報告ハイパフォーマンスコンピューティング(HPC)   2009(6) 1-7   Jun 2009
不完全LU/コレスキー分解による疎行列向け前処理付反復法をOpenMP等によりマルチコアソケット上で並列化するための手法として,マルチカラー法等による並び替えが広く使用されている.色数を増やすと通常反復回数は減少するが,同期オーバーヘッドによって性能が低下する.本研究ではHitachi SR11000/J2,T2Kオープンスパコン(東大)において非構造格子向け前処理付反復法の性能に対するリオーダリングの影響を,Flat MPI,ハイブリッド並列プログラミングモデルに対して評価した.CM-R...
片桐 孝洋, 櫻井 隆雄, 黒田 久泰, 直野 健, 中島 研吾
研究報告ハイパフォーマンスコンピューティング(HPC)   2009(3) 1-10   Jul 2009
本稿では,数値計算ライブラリにおいて個々に開発された自動チューニング機能の実装を再利用するという AT 実装再利用性という概念を示す.AT 実装再利用性を達成する自動チューニングインターフェースが持つべき機能を示し,その機能の一部を実装したライブラリ OpenATLib のインターフェースについて紹介する.In this paper, reusability for implementation of automatic tuning facility (RIAT) for numeric...
櫻井 隆雄, 直野 健, 片桐 孝洋, 中島 研吾, 黒田 久泰
研究報告ハイパフォーマンスコンピューティング(HPC)   2009(17) 1-8   Jul 2009
自動チューニングの実装の再利用性を実現するため,筆者らは自動チューニングインターフェース OpenATLib を提案している.本稿では OpenATLib を利用して疎行列反復解法ライブラリ Xabclib_LANCZOS と Xabclib_GMRES を開発しその性能を評価した.T2K オープンスパコン (東大版) 1 ノード (16 コア) 上で様々なフロリダ大の行列を用いて OpenATLib の自動チューニング機能を評価した結果,Xabclib_LANCZOS は最大で 22.4...
Kengo Nakajima
IEEE Proceedings of the 38th International Conference on Parallel Processing (ICPP 2009) (Second International Workshop on Parallel Programming Models and Systems Software for High-End Computing (P2S2))   73-80   Sep 2009   [Refereed]
Katagiri Takahiro, Sakurai Takao, Kuroda Hisayasu, Naono Ken, Nakajima Kengo
Bulletin of the Japan Society for Industrial and Applied Mathematics   20(4) 297-309   2010   [Refereed]
Conventional numerical libraries with auto-tuning (AT) facility have no re-usability for their AT functions. To solve the re-usability problem of AT libraries, we have established Application Programming Interfaces (APIs) for AT. The library of th...
Nakajima Kengo
Bulletin of the Japan Society for Industrial and Applied Mathematics   20(4) 310-320   2010   [Refereed]
In this study, framework for automatic tuning on selection of optimum parallel programming model in finite-element computation has been investigated. Target FEM code has been tested and optimized on T2K Open Supercomputers (Tokyo) with up to 1,024...
NAKAJIMA Kengo
研究報告ハイパフォーマンスコンピューティング(HPC)   2010(7) 1-6   Feb 2010
OpenMP/MPI ハイブリッド並列プログラミングモデルを,並列多重格子前処理付き反復法を使用した,三次元有限体積法に基づく不均質多孔質媒体中における地下水流れ問題シミュレーションに適用した.開発したプログラムの性能と安定性を T2K オープンスパコン (東大),Cray-XT4 の 1,024 コアまでを使用して評価した.First Touch Data Placement,連続メモリアクセスのためのデータ再配置,適切な NUMA control の組み合わせにより,OpenMP/MP...
櫻井隆雄, 直野健, 片桐孝洋, 中島研吾, 黒田久泰, 猪貝光祥
情報処理学会研究報告(CD-ROM)   2010(2) ROMBUNNO.HPC-125,2   Aug 2010
大島聡史, 櫻井隆雄, 片桐孝洋, 中島研吾, 黒田久泰, 直野健, 猪貝光祥, 伊藤祥司
情報処理学会研究報告(CD-ROM)   2010(3) ROMBUNNO.HPC-126,NO.1   Oct 2010
櫻井隆雄, 直野健, 片桐孝洋, 中島研吾, 黒田久泰, 猪貝光祥
情報処理学会研究報告(CD-ROM)   2010(3) ROMBUNNO.HPC-126,NO.42   Oct 2010
Akira Hosoi,Takumi Washio,Jun-ichi Okada,Yoshimasa Kadooka,Kengo Nakajima,Toshiaki Hisada
ACM/IEEE Proceedings of SC10   1-11   Nov 2010   [Refereed]
中島研吾
応用数理   20(4) 310-320   Dec 2010   [Refereed][Invited]
片桐孝洋, 櫻井隆雄, 黒田久泰, 直野健, 中島研吾
応用数理   20(4) 297-309   Dec 2010
Nakajima Kengo
Lecture Notes in Computer Science   6449 185-199   2011   [Refereed]
櫻井 隆雄, 直野 健, 片桐 孝洋, 中島 研吾, 黒田 久泰, 猪貝 光祥
ハイパフォーマンスコンピューティングと計算科学シンポジウム論文集   2011 109-117   Jan 2011   [Refereed]
大島聡史, 林雅江, 片桐孝洋, 中島研吾
情報処理学会研究報告(CD-ROM)   2010(6) ROMBUNNO.HPC-129,NO.20   Apr 2011
中島研吾
応用物理   80(7) 585-589   Jul 2011   [Refereed][Invited]
中島研吾, 佐藤正樹, 古村孝志, 奥田洋司, 岩下武史, 阪口秀
情報処理学会研究報告(CD-ROM)   2011(2) ROMBUNNO.HPC-130,NO.44   Aug 2011
大島聡史, 林雅江, 片桐孝洋, 中島研吾
情報処理学会研究報告(CD-ROM)   2011(2) ROMBUNNO.HPC-130,NO.11   Aug 2011
櫻井隆雄, 片桐孝洋, 直野健, 黒田久泰, 中島研吾, 猪貝光祥, 大島聡史, 伊藤祥司
情報処理学会研究報告(CD-ROM)   2011(2) ROMBUNNO.HPC-130,NO.43   Aug 2011
林雅江, 大島聡史, 中島研吾
情報処理学会研究報告(CD-ROM)   2011(2) ROMBUNNO.HPC-130,NO.5   Aug 2011
Kengo Nakajima
IEEE Proceedings of 2012 International Conference on Cluster Computing Workshops(CLUSTER 2012)   199-206   2012   [Refereed]
Yutaka Ishikawa,Kengo Nakajima,Atsushi Hori
Recent Advances in the Message Passing Interface - 19th European MPI Users' Group Meeting, EuroMPI 2012, Vienna, Austria, September 23-26, 2012. Proceedings   296-297   2012   [Refereed]
2012 4TH INTERNATIONAL CONFERENCE ON INTELLIGENT AND ADVANCED SYSTEMS (ICIAS), VOLS 1-2   143-148   2012   [Refereed]
Kengo Nakajima
Proceedings of the 2012 PPOPP International Workshop on Programming Models and Applications for Multicores and Manycores, PMAM 2012, New Orleans, LA, USA, February 26, 2012   93-102   Feb 2012   [Refereed]
大島聡史, 實本英之, 鴨志田良和, 片桐孝洋, 田浦健次朗, 中島研吾
情報処理学会研究報告(CD-ROM)   2011(6) ROMBUNNO.HPC-133,NO.5   Apr 2012
片桐 孝洋, 櫻井 隆雄, 伊藤 祥司, 猪貝 光祥, 大島 聡史, 黒田 久泰, 直野 健, 中島 研吾
研究報告ハイパフォーマンスコンピューティング(HPC)   2012(9) 1-8   May 2012
本論文では,数値計算ソフトウェアで多く用いられている数値反復解法において生じると考えられる収束障害 (Fault Convergence) の概念を提案する.数値計算分野で用いられている偽収束 (False Convergence) との違いを議論する.Laprie により定義されたディペンダブルコンピューティング実現のための 3 つの脅威―障害 (fault) ‐異常 (error) ‐故障 (failure) モデル-を用いて数値反復解法での収束問題を議論することにより,収束障害の一例...
NAKAJIMA, Kengo
HPC in Asia Workshop Poster Session, ISC’12      Jun 2012   [Refereed]
大島 聡史, 實本 英之, 鴨志田 良和, 片桐 孝洋, 田浦 健次朗, 中島 研吾
研究報告ハイパフォーマンスコンピューティング(HPC)   2012(43) 1-8   Jul 2012
本稿では東京大学情報基盤センターにおいて 2012 年 4 月に稼働を開始したスーパーコンピューターシステム Oakleaf-FX (Fujitsu PRIMEHPC FX10) の性能について報告する.Oakleaf-FX は SPARC64IXfx プロセッサや FEFS ファイルシステムを採用した大規模な並列計算機システムであり,理論浮動小数点演算性能は 1.13PFLOPS である.また京速コンピュータ 「京」 とも高い互換性を備えており,計算科学・計算機科学の発展に大きく寄与でき...
片桐孝洋, 櫻井隆雄, 伊藤祥司, 猪貝光祥, 大島聡史, 黒田久泰, 直野健, 中島研吾
情報処理学会研究報告(CD-ROM)   2012(2) ROMBUNNO.HPC-134,NO.9   Aug 2012
大島聡史, 實本英之, 鴨志田良和, 片桐孝洋, 田浦健次朗, 中島研吾
情報処理学会研究報告(CD-ROM)   2012(3) ROMBUNNO.HPC-135,NO.43   Oct 2012
Yamamoto Hajime, Nanai Shinichi, Zhang Keni, Audigane Pascal, Chiaberge Christophe, Ogata Ryusei, Nishikawa Noriaki, Hirokawa Yuichi, Shingu Satoru, Nakajima Kengo
GHGT-11   37 3997-4005   2013   [Refereed]
Nakajima Kengo
Procedia Computer Science   18 1265-1274   2013   [Refereed]
Nakajima Kengo
Lecture Notes in Computer Science   7851 435-450   2013   [Refereed]
Yamamoto Hajime, Nanai Shinichi, Zhang Keni, Audigane Pascal, Chiaberge Christophe, Ogata Ryusei, Nishikawa Noriaki, Hirokawa Yuichi, Shingu Satoru, Nakajima Kengo
Lecture Notes in Computer Science   7851 80-92   2013   [Refereed]
Katagiri Takahiro, Sakurai Takao, Igai Mitsuyoshi, Ohshima Satoshi, Kuroda Hisayasu, Naono Ken, Nakajima Kengo
Lecture Notes in Computer Science   7851 236-248   2013   [Refereed]
Ohshima Satoshi, Hayashi Masae, Katagiri Takahiro, Nakajima Kengo
Lecture Notes in Computer Science   7851 140-148   2013   [Refereed]
Hayashi Masae, Nakajima Kengo
Lecture Notes in Computer Science   7851 278-291   2013   [Refereed]
中島研吾
情報処理学会研究報告(Web)   2013(HPC-139) VOL.2013-HPC-139,NO.6 (WEB ONLY)   May 2013
片桐孝洋, 大島聡史, 中島研吾, 米村崇, 熊洞宏樹, 樋口清隆, 橋本昌人, 高山恒一, 藤堂眞治, 岩田潤一, 内田和之, 佐藤正樹, 羽角博康, 黒木聖夫
情報処理学会研究報告(Web)   2013(HPC-139) VOL.2013-HPC-139,NO.4 (WEB ONLY)-9   May 2013
Hajime Yamamoto, Shinichi Nanai, Keni Zhang, Pascal Audigane, Christophe Chiaberge, Ryusei Ogata, Noriaki Nishikawa, Yuichi Hirokawa, Satoru Shingu, Kengo Nakajima
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)   7851 LNCS 80-92   Sep 2013
As one of the promising approaches for reducing greenhouse-gas content in the atmosphere, CCS (carbon dioxide capture and storage) has been recognized worldwide. CO2 is captured from large emission sources and injected and stored in deep reservoir...
松本正晴, 臼井英之, 沼波政倫, 中島研吾
ハイパフォーマンスコンピューティングと計算科学シンポジウム論文集   2014 40-40   Dec 2013
Yamamoto Hajime, Nakajima Kengo, Zhang Keni, Nanai Shinichi
12TH INTERNATIONAL CONFERENCE ON GREENHOUSE GAS CONTROL TECHNOLOGIES, GHGT-12   63 3795-3804   2014   [Refereed]
Masaharu Matsumoto,Futoshi Mori,Satoshi Ohshima,Hideyuki Jitsumoto,Takahiro Katagiri,Kengo Nakajima
Proceedings of the International Conference on Computational Science, ICCS 2014, Cairns, Queensland, Australia, 10-12 June, 2014   29 936-946   2014   [Refereed]
Kengo Nakajima
20th IEEE International Conference on Parallel and Distributed Systems, ICPADS 2014, Hsinchu, Taiwan, December 16-19, 2014   25-32   2014   [Refereed]
片桐孝洋, 大島聡史, 中島研吾, 米村崇, 熊洞宏樹, 樋口清隆, 橋本昌人, 高山恒一, 藤堂眞治, 岩田潤一, 内田和之, 佐藤正樹, 羽角博康, 黒木聖夫, 安達斉, 江口義之
情報処理学会研究報告(Web)   2014(HPC-143) VOL.2014-HPC-143,NO.26 (WEB ONLY)-13   Feb 2014

Misc

 
TANAHASHI Takahiko, NAKAJIMA Kengo
計算工学 = Journal of The Japan Society for Computational Engineering and Science (JSCES)   1(1) 39-40   Jan 1996
NAKAJIMA Kengo
計算工学 = Journal of The Japan Society for Computational Engineering and Science (JSCES)   1(3) 168-172   Sep 1996
NAKAJIMA Kengo
計算工学 = Journal of The Japan Society for Computational Engineering and Science (JSCES)   2(2) 133-134   Jun 1997
NAKAJIMA Kengo
Journal of the Japan Society for Simulation Technology   20(3) 219-223   Sep 2001
In GeoFEM, iterative methods are adopted for solving large-scale sparse matrices in scientific computing using massively parallel computers. In this paper, distributed data structure and parallel processing in GeoFEM will be described. Moreover, r...
Open/MPI Hybrid vs. Flat MPI on the Earth Simulator: Parallel Iterative Solvers for Finite Element Method
Lecture Notes in Computer Science 2858, Spring-Verlag.   2858 486-499   2003
Numerical Linear Algebra with Applications, John Wiley & Sons, Ltd.   11(8月9日) 831-852   2004
Sakurai Tetsuya, Takahashi Keiko, Nakajima Kengo
Bulletin of the Japan Society for Industrial and Applied Mathematics   18(3) 235-236   2008
Nakajima Kengo
Bulletin of the Japan Society for Industrial and Applied Mathematics   18(2) 160-161   2008
Chris Johnson, David Keyes, Ulrich Ruede, Gyan Bhanot, Rupak Biswas, Edmond Chow, Yuefan Deng, Lori Freitag Diachin, Omar Ghattas, Laurence Halpern, Robert Harrison, Bruce Hendrickson, Kirk Jordan, Tammy Kolda, Louis Komzsik, Ulrich Langer, Hans Petter Langtangen, Steven Lee, Kengo Nakajima, Aiichiro Nakano, Esmond G. Ng, Stefan Turek, Andy Wathen, Margaret Wright, David P. Young
SIAM Journal on Scientific Computing   30    Nov 2008
Nakajima Kengo
Bulletin of the Japan Society for Industrial and Applied Mathematics   19(3) 206-207   2009
Nakajima Kengo
Bulletin of the Japan Society for Industrial and Applied Mathematics   19(1) 59-60   2009
Katagiri Takahiro, Aishima Kensuke, Nakajima Kengo
Bulletin of the Japan Society for Industrial and Applied Mathematics   19(3) 204-205   2009
NAKAJIMA Kengo
計算工学   14(1) 2023-2024   Jan 2009
ISHIKAWA Yutaka, NAKAJIMA Kengo, NAKASHIMA Hiroshi, BOKU Taisuke
Journal of the Japan Society for Computational Engineering and Science   14(1) 2003-2007   Jan 2009
Nakajima Kengo
Bulletin of the Japan Society for Industrial and Applied Mathematics   20(3) 261-262   2010
OGAWA TAKANORI, ONO KENJI, KATO CHISACHI, FUJISAWA TOSHIMITSU, YAMADA TAKAHIRO, NAKAJIMA KENGO
Journal of the Japan Society for Computational Engineering and Science   15(4) 2435-2444   Oct 2010
Takashi Furumura,Kengo Nakajima,Array
Proceedings of the International Conference on Computational Science, ICCS 2011, Nanyang Technological University, Singapore, 1-3 June, 2011   1448-1449   2011   [Refereed]
Olivier Coulaud,Kengo Nakajima,Esmond G. Ng,Array
Euro-Par 2011 Parallel Processing - 17th International Conference, Euro-Par 2011, Bordeaux, France, August 29 - September 2, 2011, Proceedings, Part II   302   2011   [Refereed]
Euro-Par 2011 Parallel Processing 17th International Conference, Euro-Par 2011 Bordeaux, France, August 29-September 2, 2011 Proceedings, Part II Introduction
Coulaud Olivier, Nakajima Kengo, Ng Esmond G., Vazquez Mariano
EURO-PAR 2011 PARALLEL PROCESSING, PT 2   6853 302   2011   [Refereed]
Olivier Coulaud, Kengo Nakajima, Esmond G. Ng, Mariano Vazquez
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)   6853 LNCS 302   Sep 2011
As demand in high-resolution and high-fidelity modeling and simulation increases, desktop computers or small clusters of processors have proven to be insufficient to carry out the calculations in many scientific, engineering, and industrial applic...
Thomas Ludwig 0002,Costas Bekas,Alice Koniges,Kengo Nakajima
Euro-Par 2012 Parallel Processing - 18th International Conference, Euro-Par 2012, Rhodes Island, Greece, August 27-31, 2012. Proceedings   779-780   2012   [Refereed]
G. Antoniu, T. Boku, A. Buttari, C. Calvin, P. Codognet, M. Dayde, N. Emad, Y. Ishikawa, G. Joslin, S. Matsuoka, K. Nakajima, H. Nakashima, R. Namyst, S. Petiton, T. Sakurai, M. Sato
CSIT 2013 - 9th International Conference on Computer Science and Information Technologies, Revised Selected Papers      Jan 2013
The Japanese-french FP3C (Framework and Programming for Post-Petascale Computing) Project ANR/JST-2010-JTIC-003 aims at studying the software technologies, languages and programming models on the road to exascale computing. The ability to efficien...
Michel Daydé, Osni Marques, Kengo Nakajima
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)   7851 LNCS    Sep 2013
實本英之, 小林泰三, 松本正晴, 滝澤真一朗, 三浦信一, 中島研吾
電子情報通信学会技術研究報告   114(155(CPSY2014 10-46)) 155-159   Jul 2014
中島研吾
戦略的創造研究推進事業CREST終了報告書(Web)   2015 WEB ONLY   2015
Michel Daydé, Osni Marques, Kengo Nakajima
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)   8969    Jan 2015
山本肇, 七井慎一, 中島研吾, ZHANG Keni
大成建設技術センター報(CD-ROM)   (48) ROMBUNNO.47   Dec 2015
中島研吾, 中島研吾, 青木尊之
計算工学   21(1) 3388‐3391   Jan 2016
SPECIAL SECTION: 2016 COPPER MOUNTAIN CONFERENCE
Benzi Michele, Cai Xiao-Chuan, Chacon Luis, Duff Iain, Elman Howard, Jordan Kirk, Kelley Tim, Kilmer Misha, Leyffer Sven, Manteuffel Tom, McCormick Steve, Nagy James, Nakajima Kengo, Olson Luke, Scheichl Rob, Shadid John, Silvester David, Stathopoulos Andreas, Tuminaro Ray, Walker Homer, Willcox Karen, Woodward Carol, Yavneh Irad
SIAM JOURNAL ON SCIENTIFIC COMPUTING   39(5) CP22-CP23   2017   [Refereed]
中島研吾
科学技術未来戦略ワークショップ報告書 ドメインスペシフィック・コンピューティング-新たなコンピューティングの進化の方向性 平成30年   42‐46   2018
Andreas Alvermann, Achim Basermann, Hans-Joachim Bungartz, Christian Carbogno, Dominik Ernst, Holger Fehske, Yasunori Futamura, Martin Galgon, Georg Hager, Sarah Huber, Thomas Huckle, Akihiro Ida, Akira Imakura, Masatoshi Kawai, Simone Köcher, Moritz Kreutzer, Pavel Kus, Bruno Lang, Hermann Lederer, Valeriy Manin, Andreas Marek, Kengo Nakajima, Lydia Nemec, Karsten Reuter, Michael Rippl, Melven Röhrig-Zöllner, Tetsuya Sakurai, Matthias Scheffler, Christoph Scheurer, Faisal Shahzad, Danilo Simoes Brambila, Jonas Thies, Gerhard Wellein
   Jun 2018
We first briefly report on the status and recent achievements of the ELPA-AEO
(Eigenvalue Solvers for Petaflop Applications - Algorithmic Extensions and
Optimizations) and ESSEX II (Equipping Sparse Solvers for Exascale) projects.
In both collabor...

Conference Activities & Talks

 
NAKAJIMA Kengo
年会一般講演   Jul 1996   
Parallel Multilevel Iterative Solvers for Incompressible Navier-Stokes Equations [Invited]
NAKAJIMA, Kengo
RIKEN Symposium: Linear Algebra and its Applications   Nov 1999   
WADA Yoshitaka, NAKAJIMA Kengo
計算工学講演会論文集   30 May 2001   
江連 真一, 奥田 洋司, 中島 研吾
Proceedings of the Annual Conference of the Japan Society for Industrial and Applied Mathematics   2002   
大規模並列有限要素解析を行うにあたり,メッシュ生成等のプリプロセスは,可視化処理等のポストプロセスと共に大きな問題となる.これらの処理はグローバルな領域を扱う必要が生じ,かつGUI操作等を伴うために並列化が難しい.そのため,単一プロセッサでは取り扱うことが不可能な規模のメッシュ生成は事実上不可能となる.<br>本研究では,並列計算機を利用して,単一プロセッサ上でメッシュ生成が可能な疎な初期メッシュデータから,大規模並列有限要素解析のための密な並列メッシュデータを作成するソフトウェアをPar...
中島 研吾, 江連 真一, 奥田 洋司
Proceedings of the Annual Conference of the Japan Society for Industrial and Applied Mathematics   2002   
並列計算機による大規模シミュレーションにおいて,データの準備(有限要素法の場合メッシュ生成),計算結果の可視化処理は大きな技術的課題である。本研究では,適応格子による細分化(Adaptive Mesh Refinement,AMR)におけるメッシュの階層性を使用して,「メッシュ生成 から シミュレーション から 可視化処理」という一連のプロセスを並列計算機上で効率的に実施するための手法を開発した。まず,領域分割された初期メッシュから細分化メッシュを並列計算機上で生成し,シミュレーションを実...
奥田 洋司, 中島 研吾
Proceedings of the Annual Conference of the Japan Society for Industrial and Applied Mathematics   2002   
地球シミュレータが2002年3月に完成し、Linpack35.6Tflopsを達成した。このハードウェアを想定して、地球環境の諸問題に対するシミュレーションソフトウェア群の開発が同時進行している。GeoFEMはその内のひとつで、固体地球分野を対象とした並列有限要素法解析システムである。GeoFEMは、多目的の汎用的並列有限要素コードとしての性格を有する'Tiger'と、Tigerをさらに発展させ地球シミュレータの利用を前提として固体地球の諸現象をシミュレートする'Snake'の、2つのフェ...
MARUMO Aya, NAKAJIMA Kengo, WADA Yoshitaka
計算工学講演会論文集   20 May 2002   
EZURE Shin'ichi, OKUDA Hiroshi, NAKAJIMA Kengo
計算工学講演会論文集   20 May 2002   
NAKAJIMA Kengo
計算工学講演会論文集   20 May 2002   
NAKAJIMA Kengo, OKUDA Hiroshi
計算工学講演会論文集   20 May 2002   
NAKAJIMA Kengo
The Proceedings of The Computational Mechanics Conference   2003   
CHEN Li, FUJISHIRO Issei, NAKAJIMA Kengo, Okuda Hiroshi
The Proceedings of The Computational Mechanics Conference   2003   
This paper describes our parallel visualization system for large unstructured datasets on the Earth Simulator. Parallel volume rendering is one of important methods in the system. Some strategies have been adopted to make it suitable for the Earth...
Solid Earth Simulation Using GeoFEM Platform on the Earth Simulator [Invited]
NAKAJIMA, Kengo
SIAM Conference on Computational Science and Engineering (CSE03)   Feb 2003   
HPC Middleware (HPC-MW): Infrastructure for Scientific Applications on HPC Environments - Overview and Recent Progress [Invited]
Nakajima, K., Okuda, H.
4th Workshop on ACTS Collection   Aug 2003   
HPC Middleware (HPC-MW) Infrastructure for Scientific Applications on HPC Environments [Invited]
Nakajima, K. and Okuda
SIAM 11th Conference on Parallel Processing for Scientific Computing (PP04), MS 37: Portable Parallel Numerical Libraries for Various Types of Architectures   Feb 2004   
High-Performance Computing in Solid Earth Simulations: Benchmarks of FEM-type codes on IBM BlueGege/L (512-node prototype) [Invited]
NAKAJIMA, Kengo
NERSC Scientific Computing Seminar, Lawrence Berkeley National Laboratory   Dec 2004   
NAKAJIMA Kengo
The Proceedings of The Computational Mechanics Conference   2005   
Flat MPI and Hybrid Parallel Programming Models for FEM Applications on SMP Cluster Architectures [Invited]
NAKAJIMA, Kengo
First International Workshop on OpenMP (IWOMP 2005)   Jun 2005   
The impact of parallel programming models on the performance of preconditioned iterative solvers for finite-element simulations [Invited]
NAKAJIMA, Kengo
CSE Colloquia, The Pennsylvania State University   Feb 2006   
Parallel Multilevel Iterative Linear Solvers for Heterogeneous Field with Adaptive Mesh Refinement [Invited]
NAKAJIMA, Kengo
SIAM 12th Conference on Parallel Processing for Scientific Computing (PP06), MS 30: Scalable Preconditioning with Incomplete Factors and Sparse Approximate Inverses   Feb 2006   
Scalability of GeoFEM on BG/L prototype [Invited]
NAKAJIMA, Kengo
The 3rd BG/L Systems Software and Applications Workshop   Apr 2006   
The GeoFEM Benchmarks for the Parallel Finite Element Method on NERSC Computers [Invited]
NAKAJIMA, Kengo
NERSC Scientific Computing Seminar, Lawrence Berkeley National Laboratory, Berkeley   Dec 2006   
An Integrated Predictive Simulation System for Earthquake and Tsunami Disasters [Invited]
NAKAJIMA, Kengo
NERSC Scientific Computing Seminar, Lawrence Berkeley National Laboratory   Dec 2006   
Nakajima Kengo
NCTAM papers, National Congress of Theoretical and Applied Mechanics, Japan   2007   
In October 2005, the project titled "Integrated Predictive Simulation System for Earthquake and Tsunami Disaster" by 7 institutions in Japan started as one of the basic research programs (CREST) funded by Japan Science and Technology Agency (JST)....
江連 真一, 中島 研吾
Proceedings of the conference on computational engineering and science   May 2007   
Integrated Predictive Simulation System for Earthquake and Tsunami Disaster - Contributions from the HPC Community [Invited]
NAKAJIMA, Kengo
2007 Workshop on Community Finite Element Models for Fault Systems and Tectonic Studies   Jun 2007   
Parallel Programming Models for Finite-Element Applications on SMP Cluster Architectures, [Invited]
NAKAJIMA, Kengo
Fourth International Conference of Applied Mathematics and Computing   Aug 2007   
Hybrid vs. Flat MPI: Parallel Programming Models in Multi-core Era [Invited]
NAKAJIMA, Kengo
Second Korea-Japan Workshop on Computational Engineering   Sep 2007   
Automatic selection of parameters in parallel preconditioners for ill-conditioned problems [Invited]
NAKAJIMA, Kengo
SIAM 13th Conference on Parallel Processing for Scientific Computing (PP08), MS 25: Auto-tuning on Numerical Libraries and Advanced Computer Systems Part-II   Mar 2008   
Hybrid vs. Flat MPI ? : Experiences in Preconditioned Iterative Linear Solvers for Unstructured Grids [Invited]
NAKAJIMA, Kengo
SIAM 13th Conference on Parallel Processing for Scientific Computing (PP08), MS 49: Algorithms and Optimizations Targeting Multi-Core Architectures Part-II   Mar 2008   
NAKAJIMA Kengo
Proceedings of the conference on computational engineering and science   19 May 2008   
Early Experiences in "T2K Open Super Computer (Todai Combined Cluster)" with AMD Quad-Core Opteron processors [Invited]
NAKAJIMA, Kengo
NERSC Scientific Computing Seminar, Lawrence Berkeley National Laboratory   Jun 2008   
Strategy of Domain Partitioning for Parallel Preconditioned Iterative Solvers in the Multi-Core Era [Invited]
NAKAJIMA, Kengo
5th GSIC International Symposium (Leading Studies on Computational Mechanics)   Dec 2008   
Robust and Efficient Parallel Preconditioning Methods with Hierarchical Interface Decomposition for Multicore Architectures [Invited]
NAKAJIMA, Kengo
SIAM Conference on Computational Science and Engineering (CSE09), MS115: Current Auto-tuning Challenges: Multicore Architecture and Crucial Algorithms Part-II   Mar 2009   
Optimization of Preconditioned Parallel Iterative Solvers for Finite-Element Applications using Hybrid Parallel Programming Models on “T2K Open Supercomputer (Tokyo)” [Invited]
NAKAJIMA, Kengo
The 11th International Specialist Meeting on Next Generation Models on Climate Change and Sustainability for High Performance Computing Facilities   Mar 2009   
中島 研吾
Proceedings of the conference on computational engineering and science   May 2009   
Parallel Multigrid Solvers using OpenMP/MPI Hybrid Programming Models on Multi-Core/Multi-Socket Clusters [Invited]
NAKAJIMA, Kengo
2nd International Kyoto Forum on Krylov Subspace Methods   Mar 2010   
Parallel Multigrid Solvers using OpenMP/MPI Hybrid Programming Models on Multi-Core/Multi-Socket Clusters [Invited]
NAKAJIMA, Kengo
11th Copper Mountain Conference on Iterative Methods   Apr 2010   
黒田久泰, 櫻井隆雄, 片桐孝洋, 直野健, 中島研吾
日本応用数理学会年会講演予稿集   Sep 2010   
櫻井隆雄, 片桐孝洋, 直野健, 黒田久泰, 中島研吾, 猪貝光祥
日本応用数理学会年会講演予稿集   Sep 2010   
Infrastructure for Development of Codes in Scientific Computing on Post-Peta-Scale Systems [Invited]
NAKAJIMA, Kengo
IPAB (Initiative for Parallel Bioinformatics) Open Workshop in Okinawa 2010: "Seeds and Needs for Large Scale Computing 2010" -Next Generation Sequencer : Uniting IT and Biotechnology -   Oct 2010   
Infrastructure for Application Development on Heterogeneous Parallel Computers, [Invited]
NAKAJIMA, Kengo
Fujitsu Open Petascale Libraries Workshop at SC10   Nov 2010   
林雅江, 中島研吾
計算工学講演会論文集(CD-ROM)   25 May 2011   
伊藤祥司, 片桐孝洋, 櫻井隆雄, 猪貝光祥, 大島聡史, 黒田久泰, 直野健, 中島研吾
計算工学講演会論文集(CD-ROM)   25 May 2011   
ppOpen-HPC: Open Source Infrastructure for Development and Execution of Large-Scale Scientific Applications on Post-Petascale Supercomputers with Automatic Tuning (AT) [Invited]
NAKAJIMA, Kengo
International Workshop on Collaborative Development of Simulation Software of Next Generation (CO-DESIGN)   Oct 2011   
中島研吾
日本応用数理学会年会講演予稿集(CD-ROM)   2012   
櫻井隆雄, 片桐孝洋, 直野健, 黒田久泰, 中島研吾, 猪貝光祥, 大島聡史, 伊藤祥司
日本応用数理学会年会講演予稿集(CD-ROM)   2012   
ppOpen-HPC: Open Source Infrastructure for Development and Execution of Large-Scale Scientific Applications on Post-Peta-Scale Supercomputers with Automatic Tuning (AT)
NAKAJIMA, Kengo
ATIP/A*CRC Workshop on Accelerator Technologies for High-Performance Computing: Does Asia Lead the Way?   8 May 2012   
林雅江, 中島研吾
計算工学講演会論文集(CD-ROM)   29 May 2012   
Parallel Multigrid Methods on Post-Peta/Exascale Systems [Invited]
NAKAJIMA, Kengo
The 6th Korea-Japan Workshop on Computational Mechanics   31 May 2012   
ppOpen-HPC: Open Source Infrastructure for Development and Execution of Large-Scale Scientific Applications on Post-Peta-Scale Supercomputers with Automatic Tuning (AT) [Invited]
NAKAJIMA, Kengo
The First Spain-Japan Workshop on Computational Mechanics   17 Sep 2012   
Automatic Tuning of Preconditioned Iterative Solvers with Hybrid Parallel Programming Models [Invited]
NAKAJIMA, Kengo
International Workshop on Collaborative Development of Simulation Software of Next Generation (CO-DESIGN)   25 Oct 2012   
ppOpen-HPC: Open Source Infrastructure for Development and Execution of Large-Scale Scientific Applications with Automatic Tuning (AT) [Invited]
NAKAJIMA, Kengo
CUG Seminar (China University of Geosciences)   26 Oct 2012   
ppOpen-HPC: Open Source Infrastructure for Development and Execution of Large-Scale Scientific Applications with Automatic Tuning (AT) [Invited]
NAKAJIMA, Kengo
SDSC Seminar, San Diego Supercomputer Center   26 Feb 2013   
HPCI towards Exascale Era [Invited]
Nakajima, K., Y. Ishikawa and T. Katagiri
17th Workshop on Sustained Simulation Performance (WSSP 2013)   12 Mar 2013   
Automatic Tuning of Preconditioned Iterative Solvers with Hybrid Parallel Programming Models [Invited]
NAKAJIMA, Kengo
Climate 2013 Workshop (The next-generation of climate models and knowledge discoveries through the extreme high-performance simulations and big data)   21 Mar 2013   
Parallel Multigrid Method on Post-Peta/Exa Scale Supercomputer Systems
NAKAJIMA, Kengo
Advances in Computational Mechanics (ACM 2013) — A Conference Celebrating the 70th Birthday of Thomas J.R. Hughes: Parallelism in Matrix Computations   25 Mar 2013   
Automatic Tuning of Parallel Multigrid Solvers with Hybrid Parallel Programming Models
NAKAJIMA, Kengo
Conference on Advanced Topics and Auto Tuning in High Performance Scientific Computing (2013@2HPSC)   28 Mar 2013   
Challenges in Sparse Linear Solvers for Post-Peta/Exascale Systems [Invited]
NAKAJIMA, Kengo
Latest Advances in Scalable Algorithms for Large Scale Systems, International Supercomputing Conference (ISC’13)   19 Jun 2013   
小野謙二, 高木亮治, 河合浩志, 樫山和男, 中島研吾
計算工学講演会論文集(CD-ROM)   19 Jun 2013   
Parallel Geometric Multigrid Method for Large-scale Simulations of 3D Groundwater Flow through Heterogeneous Porous Media [Invited]
NAKAJIMA, Kengo
Berkeley Lab Computing Science Seminar, Lawrence Berkeley National Laboratory   13 Sep 2013   
Iterative Linear Solvers for Post-Peta/Exascale Systems [Invited]
NAKAJIMA, Kengo
International Workshop on Collaborative Development of Simulation Software of Next Generation (CO-DESIGN)   30 Oct 2013   
Recent Activities in Japan towards Post-Peta/Exascale Systems [Invited]
NAKAJIMA, Kengo
Fujitsu Open Petascale Libraries SC13 Workshop   17 Nov 2013   
Challenges towards Post-Peta/Exascale Computing -Information Technology Center, The University of Tokyo- [Invited]
NAKAJIMA, Kengo
53rd IDC (International Data Corporation) HPC User Forum   16 Jul 2014   
ppOpen-HPC: Open Source Infrastructure for Development and Execution of Large-Scale Scientific Applications with Automatic Tuning (AT) [Invited]
NAKAJIMA, Kengo
IMI (Institute of Mathematics for Industry) Workshop on Optimization in the Real World   14 Oct 2014   
菱谷智幸, 中島研吾, 江連真一
日本地下水学会講演会講演要旨   2015   
Development of Large-Scale Scientific & Engineering Applications on Post-Peta/Exascale Systems [Invited]
NAKAJIMA, Kengo
Seventh Korea-Japan Workshop on Computational Engineering   10 Apr 2015   
Optimization of Communications for Scalable Algorithms on Supercomputers in Next Generation [Invited]
NAKAJIMA, Kengo
MS 602: Iterative Methods and Parallel Computing, 13th US National Congress on Computational Mechanics (USNCCM-13)   27 Jul 2015   
ppOpen-HPC: Open Source Infrastructure for Development and Execution of Large-Scale Scientific Applications with Automatic Tuning (AT) [Invited]
NAKAJIMA, Kengo
Berkeley Lab Computing Sciences Seminar (Lawrence Berkeley National Laboratory)   28 Jul 2015   
ppOpen-HPC: Open Source Infrastructure for Development and Execution of Large-Scale Scientific Applications with Automatic Tuning (AT) [Invited]
NAKAJIMA, Kengo
SDSC Seminar, San Diego Supercomputer Center   30 Jul 2015   
山本肇, 中島研吾, ZHANG Keni
土木学会年次学術講演会講演概要集(CD-ROM)   1 Aug 2015   
Optimization of Communications towards Scalable Algorithms on Post Petascale Supercomputers [Invited]
NAKAJIMA, Kengo
ScalA15: Workshop on Latest Advances in Scalable Algorithms for Large-Scale Systems, conjunction with SC15   16 Nov 2015   
中島研吾
計算工学講演会論文集(CD-ROM)   31 May 2016   
Extreme Simulations on ppOpen-HPC [Invited]
NAKAJIMA, Kengo
Challenges in Extreme Engineering Algorithms, ISC High Performance 2016   19 Jun 2016   
Development of Large-Scale Scien-tific & Engineering Applications on Post-Peta/Exascale Systems using ppOpen-HPC [Invited]
Kengo Nakajima, Akihiro Ida and Takahiro Katagiri
Enabling Technologies and Simulation Practices for High Performance Computational Mechanics, The 12th World Congress on Computational Mechanics (WCCM XII)   24 Jul 2016   
Parallel Iterative Solvers for Ill-conditioned Problems with Heterogeneous Material Properties [Invited]
NAKAJIMA, Kengo
NCU Mathematics Seminar, National Central University   3 Nov 2016   
[6-67] Kengo Nakajima, Parallel Iterative Solvers with Preconditioning in the Post-Moore Era [Invited]
NAKAJIMA, Kengo
TIMS Seminar on Scientific Computing, National Taiwan University   14 Nov 2016   
Communication/Synchronization Avoiding/Reducing in Krylov Iterative Solvers on Multicore/Manycore Clusters -Early Case Studies on Oakforest-PACS with Intel Xeon Phi [Invited]
NAKAJIMA, Kengo
Berkeley Lab Computing Sciences Seminar (Lawrence Berkeley National Laboratory)   20 Jan 2017   
Accelerated Computing Activities at ITC/University of Tokyo [Invited]
NAKAJIMA, Kengo
ADAC-3 (Accelerated Data Analytics and Computing) Workshop   25 Jan 2017   
Application Development Framework for Manycore Architectures in Exascale/Post-Moore Era
NAKAJIMA, Kengo
2017 SIAM Conference on Computational Science and Engineering (SIAM CSE17)   3 Mar 2017   
Hiding communications in preconditioned Krylov iterative solvers on multicore/manycore clusters
NAKAJIMA, Kengo
2017 Conference on Advanced Topics and Auto Tuning in High Performance Scientific Computing (2017 ATAT in HPSC)   11 Mar 2017   
Parallel Preconditioning Method for Iterative Linear Solvers on Multicore/Manycore Clusters [Invited]
NAKAJIMA, Kengo
IACM 19th International Conference on Finite Elements in Flow Problems - FEF 2017: Iterative Methods and Parallel Computing   4 Apr 2017   
河合直聡, 伊田明弘, 中島研吾
計算工学講演会論文集(CD-ROM)   31 May 2017   
中島研吾, 藤田敬文
計算工学講演会論文集(CD-ROM)   31 May 2017   
Communication-Computation Overlapping with Dynamic Loop Scheduling for Preconditioned Parallel Iterative Solvers on Multicore/Manycore Clusters [Invited]
NAKAJIMA, Kengo
Berkeley Lab Computing Science Seminar (Lawrence Berkeley National Laboratory)   9 Jun 2017   
Parallel Preconditioned Iterative Solvers on Manycore Architectures [Invited]
Kengo Nakajima, Toshihiro Hanawa and Tetsuya Hoshino
MS26: Computing Bulks of Inner Eigenpairs of Large Sparse Matrices: From Applications and Algorithms to Performance and Software Engineering (2/2), PASC17 (The Platform for Advanced Scientific Computing)   27 Jun 2017   
Development of Large-Scale Scientific & Engineering Applications on Post-Peta/Exascale Systems using ppOpen-HPC [Invited]
Kengo Nakajima, Akihiro Ida, Masatoshi Kawai, and Takahiro Katagiri
APSCIT 2017 Annual Meeting (Asia Pacific Society for Computing and Information Technology   29 Jul 2017   
野村直也, 中島研吾, 藤井昭宏
日本応用数理学会年会講演予稿集(CD-ROM)   4 Sep 2017   
Preconditioned Iterative Solvers in ppOpen-HPC/pKOpen-HPC for ESSEX-II [Invited]
NAKAJIMA, Kengo
Parallel Programming Models - Productivity and Applications (2nd Edition)   18 Oct 2017   
Application Development Framework for Manycore Architectures on Post-Peta/Exascale Systems [Invited]
NAKAJIMA, Kengo
ScalA17: Workshop on Latest Advances in Scalable Algorithms for Large-Scale Systems, conjunction with SC17   13 Nov 2017   
Application Development Framework for Manycore Architectures on Post-K/Post-Moore Era [Invited]
NAKAJIMA, Kengo
Next QUMAT 2017: Development of Next-Generation Quantum Material Research Platform   4 Dec 2017   
Preconditioned Iterative Solvers in ppOpen-HPC/pK-Open-HPC for the DFG Project ESSEX
NAKAJIMA, Kengo
ISP2S2-2017: JST/CREST International Symposium on Post Petascale System Software   11 Dec 2017   
ppOpen-HPC: Open Source Infrastructure for Development and Execution of Large-Scale Scientific Applications with Automatic Tuning (AT)
NAKAJIMA, Kengo
Ninth symposium on Automatic Tuning Technology and its Application (9th ATTA)   25 Dec 2017   
Application Development Framework for Manycore Architectures -from Exascale to Post Moore Era- [Invited]
NAKAJIMA, Kengo
International Workshop for High Performance Numerical Algorithms and Applications (HPNAA)   8 Jan 2018   
FEM-CRAFT: A Library for Application-Level Fault-Resilience Based on the CRAFT Framework
T. Fukasawa, F. Shazad, K. Nakajima, G. Welleinp
2018 SIAM Conference on Parallel Processing for Scientific Computing (SIAM PP18)   8 Mar 2018   
Computational Science and Engineering in Exascale and Post Moore Era [Invited]
NAKAJIMA, Kengo
JAMSTEC-DKRZ Workshop: Open Workshop: User Services at Earth Science HPC Centers   19 Mar 2018   
Parallel Multigrid Method with Automatic Tuning for Manycore Clusters
NAKAJIMA, Kengo
2018 Conference on Advanced Topics and Auto Tuning in High Performance Scientific Computing (2018 ATAT in HPSC)   27 Mar 2018   
Activities of IPCC at the Information Technology Center, The University of Tokyo [Invited]
NAKAJIMA, Kengo
Intel Parallel Computing Centers Asia Summit 2018   10 May 2018   

Works

 
Development of Software Infrastructure for Large Scale Scientific Simulation
2002 - 2007

Research Grants & Projects

 
Infrastructure for Parallel Computing in Scientific Simulation
Infrastructure for Parallel Computing in Scientific Simulations
Project Year: 1997 - 2007
High-Performance Computing in Solid Earth Simulation
Project Year: 1999 - 2007
Parallel Numerical Methods for Scientific Computing
JST Basic Research Programs (Core Research for Evolutional Science and Technology :CREST)
Project Year: 2002 - 2007
Innovative Multigrid Methods
Project Year: Apr 2018 - Mar 2019    Investigator(s): NAKAJIMA, Kengo