Umpei Nagashima

31 papers A 6Misc 3Journal 17Unranked 5

Year	Rank	Type	Title / Venue / Authors
2011	Misc	`conf`	Theoretical study of the reversible photoconversion mechanism in Dronpa. ICCS Jun Koseki, Yukiumi Kita, Umpei Nagashima, Masanori Tachikawa
2010	J	`jnl`	A filter diagonalization for generalized eigenvalue problems based on the Sakurai-Sugiura projection method. J. Comput. Appl. Math. Tsutomu Ikegami, Tetsuya Sakurai, Umpei Nagashima
2010	J	`jnl`	Parallel Fock matrix construction with distributed shared memory model for the FMO-MO method. J. Comput. Chem. Hiroaki Umeda, Yuichi Inadomi, Toshio Watanabe, Toru Yagi, Takayoshi Ishimoto, Tsutomu Ikegami, Hiroto Tadano, Tetsuya Sakurai, Umpei Nagashima
2009	J	`jnl`	Parallel Fock matrix construction program for molecular orbital calculation - Specific computer with a hierarchical network. J. Comput. Chem. Hiroaki Umeda, Yuichi Inadomi, Hiroaki Honda, Umpei Nagashima
2008	J	`jnl`	A parallel method for large sparse generalized eigenvalue problems using a GridRPC system. Future Gener. Comput. Syst. Tetsuya Sakurai, Yoshihisa Kodaki, Hiroto Tadano, Daisuke Takahashi, Mitsuhisa Sato, Umpei Nagashima
2006	—	`conf`	A Master-Worker Type Eigensolver for Molecular Orbital Computations. PARA Tetsuya Sakurai, Yoshihisa Kodaki, Hiroto Tadano, Hiroaki Umeda, Yuichi Inadomi, Toshio Watanabe, Umpei Nagashima
2005	—	`conf`	A Hybrid Parallel Method for Large Sparse Eigenvalue Problems on a Grid Computing Environment Using Ninf-G/MPI. LSSC Tetsuya Sakurai, Yoshihisa Kodaki, Hiroaki Umeda, Yuichi Inadomi, Toshio Watanabe, Umpei Nagashima
2005	J	`jnl`	Four-index integral transformation exploiting symmetry. Comput. Phys. Commun. Shigeyoshi Yamamoto, Umpei Nagashima
2004	J	`jnl`	Improvement of parallelization performance of GAMESS: Global sum and (semi-)direct integral calculation in multireference perturbation calculation. J. Comput. Chem. Hiroaki Umeda, Shiro Koseki, Umpei Nagashima
2003	Misc	`conf`	Design and Implementation of Intelligent Scheduler for Gaussian Portal on Quantum Chemistry Grid. International Conference on Computational Science Takeshi Nishikawa, Umpei Nagashima, Satoshi Sekiguchi
2002	J	`jnl`	A novel parallel algorithm for large-scale Fock matrix construction with small locally distributed memory architectures: RT parallel algorithm. J. Comput. Chem. Hajime Takashima, So Yamada, Shigeru Obara, Kunihiro Kitamura, Shinjiro Inabata, Nobuaki Miyakawa, Kazutoshi Tanabe, Umpei Nagashima
2001	A	`conf`	Design and implementation of FMPL, a fast message-passing library for remote memory operations. SC Osamu Tatebe, Umpei Nagashima, Satoshi Sekiguchi, Hisayoshi Kitabayashi, Yoshiyuki Hayashida
2001	—	`conf`	Increased Efficiency of Parallel Calculations of Fragment Molecular Orbitals by Using Fine-Grained Parallelization on a HITACHI SR8000 Supercomputer. HPCN Europe Yuichi Inadomi, Tatsuya Nakano, Kazuo Kitaura, Umpei Nagashima
2001	J	`jnl`	Parallel molecular dynamics simulation of a protein. Parallel Comput. Yuto Komeiji, Makoto Haraguchi, Umpei Nagashima
2001	J	`jnl`	Parallelization of multireference perturbation calculations with GAMESS. J. Comput. Chem. Hiroaki Umeda, Shiro Koseki, Umpei Nagashima, Michael W. Schmidt
2000	Misc	`conf`	Collaboration of Parafrase-2 and NaraView for Effective Parallelization Supports. PDPTA Masayo Haneda, Mariko Sasakura, Umpei Nagashima, Yoshitoshi Kunieda, Kazuki Joe
2000	J	`jnl`	Performance Evaluation Model for Scheduling in Global Computing Systems. Int. J. High Perform. Comput. Appl. Kento Aida, Atsuko Takefusa, Hidemoto Nakada, Satoshi Matsuoka, Satoshi Sekiguchi, Umpei Nagashima
1999	J	`jnl`	Is large-scale ab initio Hartree-Fock calculation chemically accurate? Toward improved calculation of biological molecule properties. J. Comput. Chem. Hajime Takashima, Kunihiro Kitamura, Kazutoshi Tanabe, Umpei Nagashima
1999	A	`conf`	MOE: A Special-Purpose Parallel Computer for High-Speed, Large-Scale Molecular Orbital Calculation. SC Koji Hashimoto, Hiroto Tomita, Koji Inoue, Katsuhiko Metsugi, Kazuaki J. Murakami, Shinjiro Inabata, So Yamada, Nobuaki Miyakawa, Hajime Takashima, Kunihiro Kitamura, Shigeru Obara, Takashi Amisaki, Kazutoshi Tanabe, Umpei Nagashima
1999	A	`conf`	Overview of a Performance Evaluation System for Global Computing Scheduling Algorithms. HPDC Atsuko Takefusa, Satoshi Matsuoka, Hidemoto Nakada, Kento Aida, Umpei Nagashima
1998	A	`conf`	A Performance Evaluation Model for Effective Job Scheduling in Global Computing Systems. HPDC Kento Aida, Atsuko Takefusa, Hidemoto Nakada, Satoshi Matsuoka, Umpei Nagashima
1998	J	`jnl`	Ninf and PM: Communication libraries for global computing and high-performance cluster computing. Future Gener. Comput. Syst. Mitsuhisa Sato, Hiroshi Tezuka, Atsushi Hori, Yutaka Ishikawa, Satoshi Sekiguchi, Hidemoto Nakada, Satoshi Matsuoka, Umpei Nagashima
1998	J	`jnl`	Ninflet: a migratable parallel objects framework using Java. Concurr. Pract. Exp. Hiromitsu Takagi, Satoshi Matsuoka, Hidemoto Nakada, Satoshi Sekiguchi, Mitsuhisa Sato, Umpei Nagashima
1998	—	`conf`	Utilizing the Metaserver Architecture in the Ninf Global Computing System. HPCN Europe Hidemoto Nakada, Hiromitsu Takagi, Satoshi Matsuoka, Umpei Nagashima, Mitsuhisa Sato, Satoshi Sekiguchi
1997	A	`conf`	Multi-client LAN/WAN Performance Analysis of Ninf: a High-Performance Global Computing System. SC Atsuko Takefusa, Satoshi Matsuoka, Hirotaka Ogawa, Hidemoto Nakada, Hiromitsu Takagi, Mitsuhisa Sato, Satoshi Sekiguchi, Umpei Nagashima
1997	—	`conf`	Ninf: A Network Based Information Library for Global World-Wide Computing Infrastructure. HPCN Europe Mitsuhisa Sato, Hidemoto Nakada, Satoshi Sekiguchi, Satoshi Matsuoka, Umpei Nagashima, Hiromitsu Takagi
1997	J	`jnl`	Performance Evaluation of a Workstation Cluster, TMC CM-5, and Intel Paragon/XP Using a Parallel Homology Analysis Program. Parallel Comput. Satoko Sakata, Umpei Nagashima, Mitsuhisa Sato, Satoshi Sekiguchi, Haruo Hosoya
1996	J	`jnl`	Development of Neural Network Simulator for Structure-Activity Correlation of Molecules (NECO). Prediction of Endo/Exo Substitution of Norbornane Derivatives and of Carcinogenic Activity of PAHs from 13C-NMR Shifts. J. Chem. Inf. Comput. Sci. Yoshimi Isu, Umpei Nagashima, Tomoo Aoyama, Haruo Hosoya
1995	J	`jnl`	An Experience with Super-Linear Speedup Achieved by Parallel Computing on a Workstation Cluster: Parallel Calculation of Density of States of Large Scale Cyclic Polyacenes. Parallel Comput. Umpei Nagashima, Sachiko Hyugaji, Satoshi Sekiguchi, Mitsuhisa Sato, Haruo Hosoya
1994	J	`jnl`	Topological Twin Graphs. Smallest Pair of Isospectral Polyhedral Graphs with Eight Vertices. J. Chem. Inf. Comput. Sci. Haruo Hosoya, Umpei Nagashima, Sachiko Hyugaji
1990	A	`conf`	An improvement of I/O function for auxiliary storage: parallel I/O for a large scale supercomputing. ICS Umpei Nagashima, Fumio Nishimoto, Takashi Shibata, Hiroshi Itoh, Minoru Gotoh