Umpei Nagashima

Publication Activity (10 Years)

Years Active: 1990-2011
Publications (10 Years): 0

Publications

Jun Koseki, Yukiumi Kita, Umpei Nagashima, Masanori Tachikawa
Theoretical study of the reversible photoconversion mechanism in Dronpa. ICCS (2011)
Tsutomu Ikegami, Tetsuya Sakurai, Umpei Nagashima
A filter diagonalization for generalized eigenvalue problems based on the Sakurai-Sugiura projection method. J. Comput. Appl. Math. 233 (8) (2010)
Hiroaki Umeda, Yuichi Inadomi, Toshio Watanabe, Toru Yagi, Takayoshi Ishimoto, Tsutomu Ikegami, Hiroto Tadano, Tetsuya Sakurai, Umpei Nagashima
Parallel Fock matrix construction with distributed shared memory model for the FMO-MO method. J. Comput. Chem. 31 (13) (2010)
Hiroaki Umeda, Yuichi Inadomi, Hiroaki Honda, Umpei Nagashima
Parallel Fock matrix construction program for molecular orbital calculation - Specific computer with a hierarchical network. J. Comput. Chem. 30 (5) (2009)
Tetsuya Sakurai, Yoshihisa Kodaki, Hiroto Tadano, Daisuke Takahashi, Mitsuhisa Sato, Umpei Nagashima
A parallel method for large sparse generalized eigenvalue problems using a GridRPC system. Future Gener. Comput. Syst. 24 (6) (2008)
Mitsuhiro Kanazawa, Hisae Anyoji, Atsushi Ogiwara, Umpei Nagashima
peptide sequencing using ion peak intensity and amino acid cleavage intensity ratio. Bioinform. 23 (9) (2007)
Tetsuya Sakurai, Yoshihisa Kodaki, Hiroto Tadano, Hiroaki Umeda, Yuichi Inadomi, Toshio Watanabe, Umpei Nagashima
A Master-Worker Type Eigensolver for Molecular Orbital Computations. PARA (2006)
Tetsuya Sakurai, Yoshihisa Kodaki, Hiroaki Umeda, Yuichi Inadomi, Toshio Watanabe, Umpei Nagashima
A Hybrid Parallel Method for Large Sparse Eigenvalue Problems on a Grid Computing Environment Using Ninf-G/MPI. LSSC (2005)
Shigeyoshi Yamamoto, Umpei Nagashima
Four-index integral transformation exploiting symmetry. Comput. Phys. Commun. 166 (1) (2005)
Hiroaki Umeda, Shiro Koseki, Umpei Nagashima
Improvement of parallelization performance of GAMESS: Global sum and (semi-)direct integral calculation in multireference perturbation calculation. J. Comput. Chem. 25 (9) (2004)
Takeshi Nishikawa, Umpei Nagashima, Satoshi Sekiguchi
Design and Implementation of Intelligent Scheduler for Gaussian Portal on Quantum Chemistry Grid. International Conference on Computational Science (2003)
Hajime Takashima, So Yamada, Shigeru Obara, Kunihiro Kitamura, Shinjiro Inabata, Nobuaki Miyakawa, Kazutoshi Tanabe, Umpei Nagashima
A novel parallel algorithm for large-scale Fock matrix construction with small locally distributed memory architectures: RT parallel algorithm. J. Comput. Chem. 23 (14) (2002)
Osamu Tatebe, Umpei Nagashima, Satoshi Sekiguchi, Hisayoshi Kitabayashi, Yoshiyuki Hayashida
Design and implementation of FMPL, a fast message-passing library for remote memory operations. SC (2001)
Yuto Komeiji, Makoto Haraguchi, Umpei Nagashima
Parallel molecular dynamics simulation of a protein. Parallel Comput. 27 (8) (2001)
Hiroaki Umeda, Shiro Koseki, Umpei Nagashima, Michael W. Schmidt
Parallelization of multireference perturbation calculations with GAMESS. J. Comput. Chem. 22 (12) (2001)
Yuichi Inadomi, Tatsuya Nakano, Kazuo Kitaura, Umpei Nagashima
Increased Efficiency of Parallel Calculations of Fragment Molecular Orbitals by Using Fine-Grained Parallelization on a HITACHI SR8000 Supercomputer. HPCN Europe (2001)
Kento Aida, Atsuko Takefusa, Hidemoto Nakada, Satoshi Matsuoka, Satoshi Sekiguchi, Umpei Nagashima
Performance Evaluation Model for Scheduling in Global Computing Systems. Int. J. High Perform. Comput. Appl. 14 (3) (2000)
Masayo Haneda, Mariko Sasakura, Umpei Nagashima, Yoshitoshi Kunieda, Kazuki Joe
Collaboration of Parafrase-2 and NaraView for Effective Parallelization Supports. PDPTA (2000)
Hajime Takashima, Kunihiro Kitamura, Kazutoshi Tanabe, Umpei Nagashima
Is large-scale ab initio Hartree-Fock calculation chemically accurate? Toward improved calculation of biological molecule properties. J. Comput. Chem. 20 (4) (1999)
Atsuko Takefusa, Satoshi Matsuoka, Hidemoto Nakada, Kento Aida, Umpei Nagashima
Overview of a Performance Evaluation System for Global Computing Scheduling Algorithms. HPDC (1999)
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
MOE: A Special-Purpose Parallel Computer for High-Speed, Large-Scale Molecular Orbital Calculation. SC (1999)
Hiromitsu Takagi, Satoshi Matsuoka, Hidemoto Nakada, Satoshi Sekiguchi, Mitsuhisa Sato, Umpei Nagashima
Ninflet: a migratable parallel objects framework using Java. Concurr. Pract. Exp. 10 (11-13) (1998)
Mitsuhisa Sato, Hiroshi Tezuka, Atsushi Hori, Yutaka Ishikawa, Satoshi Sekiguchi, Hidemoto Nakada, Satoshi Matsuoka, Umpei Nagashima
Ninf and PM: Communication libraries for global computing and high-performance cluster computing. Future Gener. Comput. Syst. 13 (4-5) (1998)
Hidemoto Nakada, Hiromitsu Takagi, Satoshi Matsuoka, Umpei Nagashima, Mitsuhisa Sato, Satoshi Sekiguchi
Utilizing the Metaserver Architecture in the Ninf Global Computing System. HPCN Europe (1998)
Kento Aida, Atsuko Takefusa, Hidemoto Nakada, Satoshi Matsuoka, Umpei Nagashima
A Performance Evaluation Model for Effective Job Scheduling in Global Computing Systems. HPDC (1998)
Satoko Sakata, Umpei Nagashima, Mitsuhisa Sato, Satoshi Sekiguchi, Haruo Hosoya
Performance Evaluation of a Workstation Cluster, TMC CM-5, and Intel Paragon/XP Using a Parallel Homology Analysis Program. Parallel Comput. 22 (12) (1997)
Mitsuhisa Sato, Hidemoto Nakada, Satoshi Sekiguchi, Satoshi Matsuoka, Umpei Nagashima, Hiromitsu Takagi
Ninf: A Network Based Information Library for Global World-Wide Computing Infrastructure. HPCN Europe (1997)
Atsuko Takefusa, Satoshi Matsuoka, Hirotaka Ogawa, Hidemoto Nakada, Hiromitsu Takagi, Mitsuhisa Sato, Satoshi Sekiguchi, Umpei Nagashima
Multi-client LAN/WAN Performance Analysis of Ninf: a High-Performance Global Computing System. SC (1997)
Yoshimi Isu, Umpei Nagashima, Tomoo Aoyama, Haruo Hosoya
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. 36 (2) (1996)
Umpei Nagashima, Sachiko Hyugaji, Satoshi Sekiguchi, Mitsuhisa Sato, Haruo Hosoya
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. 21 (9) (1995)
Haruo Hosoya, Umpei Nagashima, Sachiko Hyugaji
Topological Twin Graphs. Smallest Pair of Isospectral Polyhedral Graphs with Eight Vertices. J. Chem. Inf. Comput. Sci. 34 (2) (1994)
Umpei Nagashima, Fumio Nishimoto, Takashi Shibata, Hiroshi Itoh, Minoru Gotoh
An improvement of I/O function for auxiliary storage: parallel I/O for a large scale supercomputing. ICS (1990)